From d02d2e3929b943695d56590c5be5e148822c0866 Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Mon, 24 Aug 2020 11:44:10 +0800
Subject: [PATCH 01/69] fix centos compile error

---
 src/client/src/tscServer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index c74a35030e..9282fa74fb 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -125,7 +125,7 @@ static void tscUpdateVgroupInfo(SSqlObj *pObj, SRpcEpSet *pEpSet) {
   pVgroupInfo->inUse = pEpSet->inUse;
   pVgroupInfo->numOfEps = pEpSet->numOfEps;
   for (int32_t i = 0; i < pVgroupInfo->numOfEps; i++) {
-    tstrncpy(pVgroupInfo->epAddr[i].fqdn, pEpSet->fqdn[i], sizeof(pEpSet->fqdn[i]));
+    tstrncpy(pVgroupInfo->epAddr[i].fqdn, pEpSet->fqdn[i], TSDB_FQDN_LEN);
     pVgroupInfo->epAddr[i].port = pEpSet->port[i];
   }
   tscDebug("after: EndPoint in use: %d", pVgroupInfo->inUse);

From 0bb8ca7d1b7761c1b4ad5a7d2186b156d59b7711 Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Fri, 28 Aug 2020 18:35:12 +0000
Subject: [PATCH 02/69] TD-1230

---
 src/client/inc/tscUtil.h         |  1 -
 src/client/inc/tsclient.h        |  2 +-
 src/client/src/tscFunctionImpl.c |  7 ++++--
 src/client/src/tscSQLParser.c    | 38 +++++++++++++++++++++++---------
 src/inc/taosmsg.h                |  7 ++++++
 src/query/inc/tsqlfunction.h     |  1 +
 src/query/src/qExecutor.c        | 26 +++++++++++++---------
 src/query/src/qFill.c            |  8 +++----
 8 files changed, 61 insertions(+), 29 deletions(-)

diff --git a/src/client/inc/tscUtil.h b/src/client/inc/tscUtil.h
index f77897a74b..405a29943b 100644
--- a/src/client/inc/tscUtil.h
+++ b/src/client/inc/tscUtil.h
@@ -39,7 +39,6 @@ extern "C" {
 #define UTIL_TABLE_IS_NORMAL_TABLE(metaInfo)\
   (!(UTIL_TABLE_IS_SUPER_TABLE(metaInfo) || UTIL_TABLE_IS_CHILD_TABLE(metaInfo)))
 
-#define TSDB_COL_IS_TAG(f) (((f)&TSDB_COL_TAG) != 0)
 
 typedef struct SParsedColElem {
   int16_t colIndex;
diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index d2c52e972a..c15212d99b 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -468,7 +468,7 @@ static FORCE_INLINE void tscGetResultColumnChr(SSqlRes* pRes, SFieldInfo* pField
   char* pData = pRes->data + pInfo->pSqlExpr->offset * pRes->numOfRows + bytes * pRes->row;
 
   // user defined constant value output columns
-  if (pInfo->pSqlExpr->colInfo.flag == TSDB_COL_UDC) {
+  if (TSDB_COL_IS_UD_COL(pInfo->pSqlExpr->colInfo.flag)) {
     if (type == TSDB_DATA_TYPE_NCHAR || type == TSDB_DATA_TYPE_BINARY) {
       pData = pInfo->pSqlExpr->param[1].pz;
       pRes->length[columnIndex] = pInfo->pSqlExpr->param[1].nLen;
diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index e74fcba246..cf256ee616 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -1648,8 +1648,9 @@ static void last_function(SQLFunctionCtx *pCtx) {
   for (int32_t i = pCtx->size - 1; i >= 0; --i) {
     char *data = GET_INPUT_CHAR_INDEX(pCtx, i);
     if (pCtx->hasNull && isNull(data, pCtx->inputType)) {
-      continue;
+        continue; 
     }
+   
     
     memcpy(pCtx->aOutputBuf, data, pCtx->inputBytes);
     
@@ -1721,7 +1722,9 @@ static void last_dist_function(SQLFunctionCtx *pCtx) {
   for (int32_t i = pCtx->size - 1; i >= 0; --i) {
     char *data = GET_INPUT_CHAR_INDEX(pCtx, i);
     if (pCtx->hasNull && isNull(data, pCtx->inputType)) {
-      continue;
+      if (!pCtx->requireNull) {
+        continue; 
+      }
     }
     
     last_data_assign_impl(pCtx, data, i);
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 5ce4c7125f..5cb08fb4a3 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -33,6 +33,8 @@
 
 #define DEFAULT_PRIMARY_TIMESTAMP_COL_NAME "_c0"
 
+#define TSWINDOW_IS_EQUAL(t1, t2) (((t1).skey == (t2).skey) && ((t1).ekey == (t2).ekey))
+
 // -1 is tbname column index, so here use the -3 as the initial value
 #define COLUMN_INDEX_INITIAL_VAL (-3)
 #define COLUMN_INDEX_INITIALIZER \
@@ -45,6 +47,10 @@ typedef struct SColumnList {  // todo refactor
   SColumnIndex ids[TSDB_MAX_COLUMNS];
 } SColumnList;
 
+typedef struct SConvertFunc {
+  int32_t originFuncId;
+  int32_t execFuncId;
+} SConvertFunc;
 static SSqlExpr* doAddProjectCol(SQueryInfo* pQueryInfo, int32_t outputIndex, int32_t colIndex, int32_t tableIndex);
 
 static int32_t setShowInfo(SSqlObj* pSql, SSqlInfo* pInfo);
@@ -1501,13 +1507,13 @@ int32_t addProjectionExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, t
   return TSDB_CODE_SUCCESS;
 }
 
-static int32_t setExprInfoForFunctions(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SSchema* pSchema, int32_t functionID, char* aliasName,
+static int32_t setExprInfoForFunctions(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SSchema* pSchema, SConvertFunc cvtFunc, char* aliasName,
                                        int32_t resColIdx, SColumnIndex* pColIndex) {
   int16_t type = 0;
   int16_t bytes = 0;
-
   char        columnName[TSDB_COL_NAME_LEN] = {0};
   const char* msg1 = "not support column types";
+  int32_t functionID = cvtFunc.execFuncId;
 
   if (functionID == TSDB_FUNC_SPREAD) {
     if (pSchema[pColIndex->columnIndex].type == TSDB_DATA_TYPE_BINARY ||
@@ -1523,16 +1529,21 @@ static int32_t setExprInfoForFunctions(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SS
     type = pSchema[pColIndex->columnIndex].type;
     bytes = pSchema[pColIndex->columnIndex].bytes;
   }
-
+  
   if (aliasName != NULL) {
     tstrncpy(columnName, aliasName, sizeof(columnName));
   } else {
-    getRevisedName(columnName, functionID, sizeof(columnName) - 1, pSchema[pColIndex->columnIndex].name);
+    getRevisedName(columnName, cvtFunc.originFuncId, sizeof(columnName) - 1, pSchema[pColIndex->columnIndex].name);
   }
   
+  
   SSqlExpr* pExpr = tscSqlExprAppend(pQueryInfo, functionID, pColIndex, type, bytes, bytes, false);
   tstrncpy(pExpr->aliasName, columnName, sizeof(pExpr->aliasName));
 
+  if (cvtFunc.originFuncId == TSDB_FUNC_LAST_ROW && cvtFunc.originFuncId != functionID) {
+    pExpr->colInfo.flag |= TSDB_COL_NULL;
+  }
+
   // set reverse order scan data blocks for last query
   if (functionID == TSDB_FUNC_LAST) {
     pExpr->numOfParams = 1;
@@ -1766,7 +1777,10 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
       if (changeFunctionID(optr, &functionID) != TSDB_CODE_SUCCESS) {
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg9);
       }
-
+      SConvertFunc cvtFunc = {.originFuncId = functionID, .execFuncId = functionID};
+      if (functionID == TSDB_FUNC_LAST_ROW && TSWINDOW_IS_EQUAL(pQueryInfo->window,TSWINDOW_INITIALIZER)) {
+        cvtFunc.execFuncId = TSDB_FUNC_LAST;
+      }
       if (!requireAllFields) {
         if (pItem->pNode->pParam->nExpr < 1) {
           return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
@@ -1798,7 +1812,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
 
             for (int32_t j = 0; j < tscGetNumOfColumns(pTableMetaInfo->pTableMeta); ++j) {
               index.columnIndex = j;
-              if (setExprInfoForFunctions(pCmd, pQueryInfo, pSchema, functionID, pItem->aliasName, colIndex++, &index) != 0) {
+              if (setExprInfoForFunctions(pCmd, pQueryInfo, pSchema, cvtFunc, pItem->aliasName, colIndex++, &index) != 0) {
                 return TSDB_CODE_TSC_INVALID_SQL;
               }
             }
@@ -1815,8 +1829,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
             if ((index.columnIndex >= tscGetNumOfColumns(pTableMetaInfo->pTableMeta)) || (index.columnIndex < 0)) {
               return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg6);
             }
-
-            if (setExprInfoForFunctions(pCmd, pQueryInfo, pSchema, functionID, pItem->aliasName, colIndex + i, &index) != 0) {
+            if (setExprInfoForFunctions(pCmd, pQueryInfo, pSchema, cvtFunc, pItem->aliasName, colIndex + i, &index) != 0) {
               return TSDB_CODE_TSC_INVALID_SQL;
             }
 
@@ -1853,7 +1866,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
 
           for (int32_t i = 0; i < tscGetNumOfColumns(pTableMetaInfo->pTableMeta); ++i) {
             SColumnIndex index = {.tableIndex = j, .columnIndex = i};
-            if (setExprInfoForFunctions(pCmd, pQueryInfo, pSchema, functionID, pItem->aliasName, colIndex, &index) != 0) {
+            if (setExprInfoForFunctions(pCmd, pQueryInfo, pSchema, cvtFunc, pItem->aliasName, colIndex, &index) != 0) {
               return TSDB_CODE_TSC_INVALID_SQL;
             }
 
@@ -5238,7 +5251,7 @@ static bool tagColumnInGroupby(SSqlGroupbyExpr* pGroupbyExpr, int16_t columnId)
   for (int32_t j = 0; j < pGroupbyExpr->numOfGroupCols; ++j) {
     SColIndex* pColIndex = taosArrayGet(pGroupbyExpr->columnInfo, j);
   
-    if (columnId == pColIndex->colId && pColIndex->flag == TSDB_COL_TAG) {
+    if (columnId == pColIndex->colId && TSDB_COL_IS_TAG(pColIndex->flag )) {
       return true;
     }
   }
@@ -5537,7 +5550,6 @@ int32_t doFunctionsCompatibleCheck(SSqlCmd* pCmd, SQueryInfo* pQueryInfo) {
     return checkUpdateTagPrjFunctions(pQueryInfo, pCmd);
   }
 }
-
 int32_t doLocalQueryProcess(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQuerySql) {
   const char* msg1 = "only one expression allowed";
   const char* msg2 = "invalid expression in select clause";
@@ -6078,6 +6090,10 @@ int32_t doCheckForQuery(SSqlObj* pSql, SQuerySQL* pQuerySql, int32_t index) {
   }
 
   int32_t joinQuery = (pQuerySql->from != NULL && pQuerySql->from->nExpr > 2);
+
+  if (pQuerySql->pWhere) {
+    pQueryInfo->window = TSWINDOW_INITIALIZER;
+  }
   if (parseSelectClause(pCmd, index, pQuerySql->pSelection, isSTable, joinQuery) != TSDB_CODE_SUCCESS) {
     return TSDB_CODE_TSC_INVALID_SQL;
   }
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index 761a267ce5..17e9c704f6 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -170,6 +170,13 @@ enum _mgmt_table {
 #define TSDB_COL_NORMAL          0x0u    // the normal column of the table
 #define TSDB_COL_TAG             0x1u    // the tag column type
 #define TSDB_COL_UDC             0x2u    // the user specified normal string column, it is a dummy column
+#define TSDB_COL_NULL            0x4u    // the column filter NULL or not
+
+#define TSDB_COL_IS_TAG(f)    (((f&(~(TSDB_COL_NULL)))&TSDB_COL_TAG) != 0)
+#define TSDB_COL_IS_NORMAL_COL(f)    ((f&(~(TSDB_COL_NULL))) == TSDB_COL_NORMAL)
+#define TSDB_COL_IS_UD_COL(f)   ((f&(~(TSDB_COL_NULL))) == TSDB_COL_UDC)
+#define TSDB_COL_REQ_NULL(f) (((f)&TSDB_COL_NULL) != 0)
+
 
 extern char *taosMsg[];
 
diff --git a/src/query/inc/tsqlfunction.h b/src/query/inc/tsqlfunction.h
index 65ab82883b..384d8079a7 100644
--- a/src/query/inc/tsqlfunction.h
+++ b/src/query/inc/tsqlfunction.h
@@ -168,6 +168,7 @@ typedef struct SQLFunctionCtx {
   int16_t      outputType;
   int16_t      outputBytes;  // size of results, determined by function and input column data type
   bool         hasNull;      // null value exist in current block
+  bool         requireNull;    // require null in some function
   int16_t      functionId;   // function id
   void *       aInputElemBuf;
   char *       aOutputBuf;            // final result output buffer, point to sdata->data
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 4e2e31d269..02112664cb 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -35,9 +35,7 @@
  * forced to load primary column explicitly.
  */
 #define Q_STATUS_EQUAL(p, s)  (((p) & (s)) != 0)
-#define TSDB_COL_IS_TAG(f)    (((f)&TSDB_COL_TAG) != 0)
-#define TSDB_COL_IS_NORMAL_COL(f)    ((f) == TSDB_COL_NORMAL)
-#define TSDB_COL_IS_UD_COL(f)   ((f) == TSDB_COL_UDC)
+
 
 #define QUERY_IS_ASC_QUERY(q) (GET_FORWARD_DIRECTION_FACTOR((q)->order.order) == QUERY_ASC_FORWARD_STEP)
 
@@ -254,7 +252,7 @@ bool isGroupbyNormalCol(SSqlGroupbyExpr *pGroupbyExpr) {
 
   for (int32_t i = 0; i < pGroupbyExpr->numOfGroupCols; ++i) {
     SColIndex *pColIndex = taosArrayGet(pGroupbyExpr->columnInfo, i);
-    if (pColIndex->flag == TSDB_COL_NORMAL) {
+    if (TSDB_COL_IS_NORMAL_COL(pColIndex->flag)) {
       //make sure the normal column locates at the second position if tbname exists in group by clause
       if (pGroupbyExpr->numOfGroupCols > 1) {
         assert(pColIndex->colIndex > 0);
@@ -275,7 +273,7 @@ int16_t getGroupbyColumnType(SQuery *pQuery, SSqlGroupbyExpr *pGroupbyExpr) {
 
   for (int32_t i = 0; i < pGroupbyExpr->numOfGroupCols; ++i) {
     SColIndex *pColIndex = taosArrayGet(pGroupbyExpr->columnInfo, i);
-    if (pColIndex->flag == TSDB_COL_NORMAL) {
+    if (TSDB_COL_IS_NORMAL_COL(pColIndex->flag)) {
       colId = pColIndex->colId;
       break;
     }
@@ -1085,7 +1083,7 @@ static char *getGroupbyColumnData(SQuery *pQuery, int16_t *type, int16_t *bytes,
 
   for (int32_t k = 0; k < pGroupbyExpr->numOfGroupCols; ++k) {
     SColIndex* pColIndex = taosArrayGet(pGroupbyExpr->columnInfo, k);
-    if (pColIndex->flag == TSDB_COL_TAG) {
+    if (TSDB_COL_IS_TAG(pColIndex->flag)) {
       continue;
     }
 
@@ -1555,6 +1553,13 @@ static int32_t setupQueryRuntimeEnv(SQueryRuntimeEnv *pRuntimeEnv, int16_t order
     SQLFunctionCtx *pCtx = &pRuntimeEnv->pCtx[i];
     SColIndex* pIndex = &pSqlFuncMsg->colInfo;
 
+    if (TSDB_COL_REQ_NULL(pIndex->flag)) {
+      pCtx->requireNull = true; 
+      pIndex->flag &= ~(TSDB_COL_NULL); 
+    } else {
+      pCtx->requireNull = false; 
+    } 
+
     int32_t index = pSqlFuncMsg->colInfo.colIndex;
     if (TSDB_COL_IS_TAG(pIndex->flag)) {
       if (pIndex->colId == TSDB_TBNAME_COLUMN_INDEX) {  // todo refactor
@@ -1574,6 +1579,7 @@ static int32_t setupQueryRuntimeEnv(SQueryRuntimeEnv *pRuntimeEnv, int16_t order
       pCtx->inputType = pQuery->colList[index].type;
     }
 
+
     assert(isValidDataType(pCtx->inputType));
     pCtx->ptsOutputBuf = NULL;
 
@@ -1783,7 +1789,7 @@ static bool onlyQueryTags(SQuery* pQuery) {
     if (functionId != TSDB_FUNC_TAGPRJ &&
         functionId != TSDB_FUNC_TID_TAG &&
         (!(functionId == TSDB_FUNC_COUNT && pExprInfo->base.colInfo.colId == TSDB_TBNAME_COLUMN_INDEX)) &&
-        (!(functionId == TSDB_FUNC_PRJ && pExprInfo->base.colInfo.flag == TSDB_COL_UDC))) {
+        (!(functionId == TSDB_FUNC_PRJ && TSDB_COL_IS_UD_COL(pExprInfo->base.colInfo.flag)))) {
       return false;
     }
   }
@@ -5353,7 +5359,7 @@ static int32_t getColumnIndexInSource(SQueryTableMsg *pQueryMsg, SSqlFuncMsg *pE
       j += 1;
     }
 
-  } else if (pExprMsg->colInfo.flag == TSDB_COL_UDC) {  // user specified column data
+  } else if (TSDB_COL_IS_UD_COL(pExprMsg->colInfo.flag)) {  // user specified column data
     return TSDB_UD_COLUMN_INDEX;
   } else {
     while (j < pQueryMsg->numOfCols) {
@@ -5561,7 +5567,7 @@ static int32_t convertQueryMsg(SQueryTableMsg *pQueryMsg, SArray **pTableIdList,
 
     int16_t functionId = pExprMsg->functionId;
     if (functionId == TSDB_FUNC_TAG || functionId == TSDB_FUNC_TAGPRJ || functionId == TSDB_FUNC_TAG_DUMMY) {
-      if (pExprMsg->colInfo.flag != TSDB_COL_TAG) {  // ignore the column  index check for arithmetic expression.
+      if (!TSDB_COL_IS_TAG(pExprMsg->colInfo.flag)) {  // ignore the column  index check for arithmetic expression.
         code = TSDB_CODE_QRY_INVALID_MSG;
         goto _cleanup;
       }
@@ -6843,7 +6849,7 @@ static void buildTagQueryResult(SQInfo* pQInfo) {
       int16_t type = 0, bytes = 0;
       for(int32_t j = 0; j < pQuery->numOfOutput; ++j) {
         // not assign value in case of user defined constant output column
-        if (pExprInfo[j].base.colInfo.flag == TSDB_COL_UDC) {
+        if (TSDB_COL_IS_UD_COL(pExprInfo[j].base.colInfo.flag)) {
           continue;
         }
 
diff --git a/src/query/src/qFill.c b/src/query/src/qFill.c
index c1cfab3ea2..b13e32efba 100644
--- a/src/query/src/qFill.c
+++ b/src/query/src/qFill.c
@@ -55,7 +55,7 @@ SFillInfo* taosInitFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int32_
     SFillColInfo* pColInfo = &pFillInfo->pFillCol[i];
     pFillInfo->pData[i] = calloc(1, pColInfo->col.bytes * capacity);
 
-    if (pColInfo->flag == TSDB_COL_TAG) {
+    if (TSDB_COL_IS_TAG(pColInfo->flag)) {
       bool exists = false;
       for(int32_t j = 0; j < k; ++j) {
         if (pFillInfo->pTags[j].col.colId == pColInfo->col.colId) {
@@ -155,7 +155,7 @@ void taosFillCopyInputDataFromOneFilePage(SFillInfo* pFillInfo, tFilePage* pInpu
     char* data = pInput->data + pCol->col.offset * pInput->num;
     memcpy(pFillInfo->pData[i], data, (size_t)(pInput->num * pCol->col.bytes));
 
-    if (pCol->flag == TSDB_COL_TAG) {  // copy the tag value to tag value buffer
+    if (TSDB_COL_IS_TAG(pCol->flag)) {  // copy the tag value to tag value buffer
       for (int32_t j = 0; j < pFillInfo->numOfTags; ++j) {
         SFillTagColInfo* pTag = &pFillInfo->pTags[j];
         if (pTag->col.colId == pCol->col.colId) {
@@ -251,7 +251,7 @@ int taosDoLinearInterpolation(int32_t type, SPoint* point1, SPoint* point2, SPoi
 static void setTagsValue(SFillInfo* pFillInfo, tFilePage** data, int32_t num) {
   for(int32_t j = 0; j < pFillInfo->numOfCols; ++j) {
     SFillColInfo* pCol = &pFillInfo->pFillCol[j];
-    if (pCol->flag == TSDB_COL_NORMAL) {
+    if (TSDB_COL_IS_NORMAL_COL(pCol->flag)) {
       continue;
     }
 
@@ -446,7 +446,7 @@ int32_t generateDataBlockImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t nu
         // assign rows to dst buffer
         for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
           SFillColInfo* pCol = &pFillInfo->pFillCol[i];
-          if (pCol->flag == TSDB_COL_TAG) {
+          if (TSDB_COL_IS_TAG(pCol->flag)) {
             continue;
           }
 

From 3f09fcb0b09a8bb2f727dd02a0d108f362752e87 Mon Sep 17 00:00:00 2001
From: zyyang <zyyang@taosdata.com>
Date: Sat, 29 Aug 2020 13:34:52 +0800
Subject: [PATCH 03/69] change the jdbc test cases

---
 .../jdbc/src/test/java/TestPreparedStatement.java        | 5 ++++-
 .../jdbc/src/test/java/TestTSDBDatabaseMetaData.java     | 5 ++++-
 src/connector/jdbc/src/test/java/TestTSDBSubscribe.java  | 6 +++---
 .../src/test/java/com/taosdata/jdbc/BatchInsertTest.java | 6 ++++--
 .../src/test/java/com/taosdata/jdbc/ConnectionTest.java  | 9 +++++----
 .../java/com/taosdata/jdbc/DatabaseMetaDataTest.java     | 6 ++++--
 .../jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java | 6 ++++--
 .../java/com/taosdata/jdbc/PreparedStatementTest.java    | 6 ++++--
 .../src/test/java/com/taosdata/jdbc/ResultSetTest.java   | 6 ++++--
 .../jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java | 6 ++++--
 .../jdbc/src/test/java/com/taosdata/jdbc/StableTest.java | 6 ++++--
 .../src/test/java/com/taosdata/jdbc/StatementTest.java   | 6 ++++--
 .../src/test/java/com/taosdata/jdbc/SubscribeTest.java   | 6 ++++--
 13 files changed, 52 insertions(+), 27 deletions(-)

diff --git a/src/connector/jdbc/src/test/java/TestPreparedStatement.java b/src/connector/jdbc/src/test/java/TestPreparedStatement.java
index 2e387206a4..4a8e03d3c1 100644
--- a/src/connector/jdbc/src/test/java/TestPreparedStatement.java
+++ b/src/connector/jdbc/src/test/java/TestPreparedStatement.java
@@ -12,7 +12,10 @@ public class TestPreparedStatement {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
-            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/?user=root&password=taosdata", properties);
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/", properties);
             String rawSql = "select * from test.log0601";
 //            String[] params = new String[]{"ts", "c1"};
             PreparedStatement pstmt = (TSDBPreparedStatement) connection.prepareStatement(rawSql);
diff --git a/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java b/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
index f7e0e78441..401a4e0e7d 100644
--- a/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
+++ b/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
@@ -13,7 +13,10 @@ public class TestTSDBDatabaseMetaData {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
-            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/?user=root&password=taosdata", properties);
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+            properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+            connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/", properties);
             dbMetaData = connection.getMetaData();
             resSet = dbMetaData.getCatalogs();
             while(resSet.next()) {
diff --git a/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java b/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
index df730efa69..bd3dbc2c4b 100644
--- a/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
+++ b/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
@@ -16,13 +16,13 @@ public class TestTSDBSubscribe {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
-        String cs = String.format("jdbc:TAOS://%s:0/%s?user=root&password=taosdata", host, database);
+        String cs = String.format("jdbc:TAOS://%s:0/%s", host, database);
         return (TSDBConnection)DriverManager.getConnection(cs, properties);
     }
 
-
-
     public static void main(String[] args) throws Exception {
         String usage = "java -Djava.ext.dirs=../ TestTSDBSubscribe [-host host] <-db database> <-topic topic> <-sql sql>";
         if (args.length < 2) {
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
index cb78a5ca0e..e4187faafc 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
@@ -40,8 +40,10 @@ public class BatchInsertTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
                 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
index 3fc8913ca3..b7706e5199 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
@@ -29,16 +29,17 @@ public class ConnectionTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         assertTrue(null != connection);
         statement = connection.createStatement();
         assertTrue(null != statement);
 
         // try reconnect
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         try {
             statement.execute("create database if not exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
index 4c4d56020d..d4df8a33fe 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
@@ -26,8 +26,10 @@ public class DatabaseMetaDataTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata",
-                properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" , properties);
 
         String sql = "drop database if exists " + dbName;
         statement = (TSDBPreparedStatement) connection.prepareStatement(sql);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
index 016eff1a35..664b53f8e2 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
@@ -28,8 +28,10 @@ public class ImportTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
index d391771269..4c10c5b9d9 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
@@ -33,8 +33,10 @@ public class PreparedStatementTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata",
-                properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         String sql = "drop database if exists " + dbName;
         statement = (TSDBPreparedStatement) connection.prepareStatement(sql);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
index a0b9c051c6..a556e0df76 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
@@ -34,9 +34,11 @@ public class ResultSetTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
index de21cc6195..0992e407c6 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
@@ -28,8 +28,10 @@ public class SelectTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" , properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
index c1321d08fc..183bcc5aa8 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
@@ -31,8 +31,10 @@ public class StableTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" , properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("create database if not exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
index 4fe5c39486..c7c54f198b 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
@@ -30,8 +30,10 @@ public class StatementTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("drop database if exists " + dbName);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
index 2dc27adab7..960d6fc109 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
@@ -32,8 +32,10 @@ public class SubscribeTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" + "?user=root&password=taosdata"
-                , properties);
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
+        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
+
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
         statement = connection.createStatement();
         statement.executeUpdate("create database if not exists " + dbName);

From 8a455cfd828f37b9e4553d5d592632ee7a97b731 Mon Sep 17 00:00:00 2001
From: zyyang <zyyang@taosdata.com>
Date: Sat, 29 Aug 2020 13:52:57 +0800
Subject: [PATCH 04/69] update jdbc test cases

---
 src/connector/jdbc/src/test/java/TestPreparedStatement.java    | 2 --
 src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java | 2 --
 src/connector/jdbc/src/test/java/TestTSDBSubscribe.java        | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java  | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java   | 2 --
 .../src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java  | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java       | 2 --
 .../src/test/java/com/taosdata/jdbc/PreparedStatementTest.java | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java    | 3 ---
 .../jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java       | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/StableTest.java       | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java    | 2 --
 .../jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java    | 2 --
 13 files changed, 27 deletions(-)

diff --git a/src/connector/jdbc/src/test/java/TestPreparedStatement.java b/src/connector/jdbc/src/test/java/TestPreparedStatement.java
index 4a8e03d3c1..16dad40a3f 100644
--- a/src/connector/jdbc/src/test/java/TestPreparedStatement.java
+++ b/src/connector/jdbc/src/test/java/TestPreparedStatement.java
@@ -12,8 +12,6 @@ public class TestPreparedStatement {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
             connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/", properties);
             String rawSql = "select * from test.log0601";
diff --git a/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java b/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
index 401a4e0e7d..7e65bd1149 100644
--- a/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
+++ b/src/connector/jdbc/src/test/java/TestTSDBDatabaseMetaData.java
@@ -13,8 +13,6 @@ public class TestTSDBDatabaseMetaData {
             Class.forName("com.taosdata.jdbc.TSDBDriver");
             Properties properties = new Properties();
             properties.setProperty(TSDBDriver.PROPERTY_KEY_HOST, "localhost");
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-            properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
             connection = DriverManager.getConnection("jdbc:TAOS://localhost:0/", properties);
             dbMetaData = connection.getMetaData();
diff --git a/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java b/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
index bd3dbc2c4b..faa073b5e9 100644
--- a/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
+++ b/src/connector/jdbc/src/test/java/TestTSDBSubscribe.java
@@ -16,8 +16,6 @@ public class TestTSDBSubscribe {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         String cs = String.format("jdbc:TAOS://%s:0/%s", host, database);
         return (TSDBConnection)DriverManager.getConnection(cs, properties);
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
index e4187faafc..47082c1ef1 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/BatchInsertTest.java
@@ -40,8 +40,6 @@ public class BatchInsertTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
                 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
index b7706e5199..2196048cc3 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ConnectionTest.java
@@ -29,8 +29,6 @@ public class ConnectionTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
index d4df8a33fe..565e409834 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/DatabaseMetaDataTest.java
@@ -26,8 +26,6 @@ public class DatabaseMetaDataTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" , properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
index 664b53f8e2..52ddc5d0eb 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ImportTest.java
@@ -28,8 +28,6 @@ public class ImportTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
index 4c10c5b9d9..dff7b05e6d 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/PreparedStatementTest.java
@@ -33,8 +33,6 @@ public class PreparedStatementTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
index a556e0df76..8067c547df 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
@@ -34,9 +34,6 @@ public class ResultSetTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
-
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
index 0992e407c6..22b9d6a59d 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SelectTest.java
@@ -28,8 +28,6 @@ public class SelectTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" , properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
index 183bcc5aa8..29a27c7980 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StableTest.java
@@ -31,8 +31,6 @@ public class StableTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/" , properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
index c7c54f198b..30c346ab62 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
@@ -30,8 +30,6 @@ public class StatementTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
index 960d6fc109..c6ca030ce8 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/SubscribeTest.java
@@ -32,8 +32,6 @@ public class SubscribeTest extends BaseTest {
         properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
         properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_USER,"root");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD,"taosdata");
 
         connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
 

From 57ec3859036a2d2a0b046cb6c0b6a2bb375f49ff Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Sat, 29 Aug 2020 15:45:02 +0800
Subject: [PATCH 05/69] [TD-1228]

---
 CMakeLists.txt                    |  1 +
 cmake/define.inc                  |  4 ++++
 cmake/input.inc                   |  5 ++++
 cmake/install.inc                 |  7 +++++-
 packaging/release.sh              | 31 +++++++++++++++++-------
 packaging/tools/install_client.sh |  4 ++--
 packaging/tools/makeclient.sh     |  2 +-
 packaging/tools/remove.sh         | 40 ++++++++++++++-----------------
 packaging/tools/remove_client.sh  |  2 ++
 src/inc/taosdef.h                 |  4 ++++
 src/kit/shell/src/shellEngine.c   | 11 +++++++++
 src/kit/taosdemo/taosdemo.c       | 20 ++++++++++++++++
 src/os/src/linux/linuxEnv.c       | 16 ++++++++++---
 src/util/src/tconfig.c            |  5 ++++
 src/util/src/tlog.c               |  4 ++++
 15 files changed, 118 insertions(+), 38 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 565ab32f00..9e2d11962c 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,7 @@ SET(TD_MEM_CHECK FALSE)
 
 SET(TD_PAGMODE_LITE FALSE)
 SET(TD_SOMODE_STATIC FALSE)
+SET(TD_OEM_POWER FALSE)
 SET(TD_GODLL FALSE)
 
 SET(TD_COMMUNITY_DIR ${PROJECT_SOURCE_DIR})
diff --git a/cmake/define.inc b/cmake/define.inc
index a63b9f1732..166a451487 100755
--- a/cmake/define.inc
+++ b/cmake/define.inc
@@ -17,6 +17,10 @@ IF (TD_GODLL)
   ADD_DEFINITIONS(-D_TD_GO_DLL_)
 ENDIF ()
 
+IF (TD_OEM_POWER)
+  ADD_DEFINITIONS(-D_TD_OEM_POWER_)
+ENDIF ()
+
 IF (TD_MEM_CHECK)
   ADD_DEFINITIONS(-DTAOS_MEM_CHECK)
 ENDIF ()
diff --git a/cmake/input.inc b/cmake/input.inc
index 0235ba42d3..2ecb2a85c7 100755
--- a/cmake/input.inc
+++ b/cmake/input.inc
@@ -27,6 +27,11 @@ IF (${SOMODE} MATCHES "static")
   MESSAGE(STATUS "Link so using static mode")
 ENDIF ()
 
+IF (${DBNAME} MATCHES "power")
+  SET(TD_OEM_POWER TRUE)
+  MESSAGE(STATUS "OEM power is true")
+ENDIF ()
+
 IF (${DLLTYPE} MATCHES "go")
   SET(TD_GODLL TRUE)
   MESSAGE(STATUS "input dll type: " ${DLLTYPE})
diff --git a/cmake/install.inc b/cmake/install.inc
index 997101c8d9..decb25e3e7 100755
--- a/cmake/install.inc
+++ b/cmake/install.inc
@@ -4,7 +4,12 @@ IF (TD_LINUX)
   INSTALL(CODE "execute_process(COMMAND chmod 777 ${TD_MAKE_INSTALL_SH})")
   INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR})")
 ELSEIF (TD_WINDOWS)
-  SET(CMAKE_INSTALL_PREFIX C:/TDengine)
+  IF (TD_OEM_POWER)
+    SET(CMAKE_INSTALL_PREFIX C:/PowerDB)
+  ELSE ()
+    SET(CMAKE_INSTALL_PREFIX C:/TDengine)
+  ENDIF ()
+  
   IF (NOT TD_GODLL)
     #INSTALL(DIRECTORY ${TD_COMMUNITY_DIR}/src/connector/go DESTINATION connector)
     #INSTALL(DIRECTORY ${TD_COMMUNITY_DIR}/src/connector/grafana DESTINATION connector)
diff --git a/packaging/release.sh b/packaging/release.sh
index 3c0378042d..7542a5b4ca 100755
--- a/packaging/release.sh
+++ b/packaging/release.sh
@@ -11,6 +11,7 @@ set -e
 #             -V [stable | beta]
 #             -l [full | lite]
 #             -s [static | dynamic]
+#             -d [taos | power]
 #             -n [2.0.0.3]
 #             -m [2.0.0.0]
 
@@ -21,10 +22,11 @@ cpuType=x64      # [aarch32 | aarch64 | x64 | x86 | mips64 ...]
 osType=Linux     # [Linux | Kylin | Alpine | Raspberrypi | Darwin | Windows | Ningsi60 | Ningsi80 |...]
 pagMode=full     # [full | lite]
 soMode=dynamic   # [static | dynamic]
+dbName=taos      # [taos | power]
 verNumber=""
 verNumberComp="2.0.0.0"
 
-while getopts "hv:V:c:o:l:s:n:m:" arg
+while getopts "hv:V:c:o:l:s:d:n:m:" arg
 do
   case $arg in
     v)
@@ -47,6 +49,10 @@ do
       #echo "soMode=$OPTARG"
       soMode=$(echo $OPTARG)
       ;;
+    d)
+      #echo "dbName=$OPTARG"
+      dbName=$(echo $OPTARG)
+      ;;
     n)
       #echo "verNumber=$OPTARG"
       verNumber=$(echo $OPTARG)
@@ -66,6 +72,7 @@ do
       echo "                  -V [stable | beta] "
       echo "                  -l [full | lite] "
       echo "                  -s [static | dynamic] "
+      echo "                  -d [taos | power] "
       echo "                  -n [version number] "
       echo "                  -m [compatible version number] "
       exit 0
@@ -77,7 +84,7 @@ do
   esac
 done
 
-echo "verMode=${verMode} verType=${verType} cpuType=${cpuType} osType=${osType} pagMode=${pagMode} soMode=${soMode} verNumber=${verNumber} verNumberComp=${verNumberComp}"
+echo "verMode=${verMode} verType=${verType} cpuType=${cpuType} osType=${osType} pagMode=${pagMode} soMode=${soMode} dbName=${dbName} verNumber=${verNumber} verNumberComp=${verNumberComp}"
 
 curr_dir=$(pwd)
 
@@ -170,9 +177,9 @@ cd ${compile_dir}
 # check support cpu type
 if [[ "$cpuType" == "x64" ]] || [[ "$cpuType" == "aarch64" ]] || [[ "$cpuType" == "aarch32" ]] || [[ "$cpuType" == "mips64" ]] ; then
   if [ "$verMode" != "cluster" ]; then
-    cmake ../    -DCPUTYPE=${cpuType} -DOSTYPE=${osType} -DSOMODE=${soMode} -DVERTYPE=${verType} -DVERDATE="${build_time}" -DGITINFO=${gitinfo} -DGITINFOI=${gitinfoOfInternal} -DVERNUMBER=${verNumber} -DVERCOMPATIBLE=${verNumberComp} -DPAGMODE=${pagMode}
+    cmake ../    -DCPUTYPE=${cpuType} -DOSTYPE=${osType} -DSOMODE=${soMode} -DDBNAME=${dbName} -DVERTYPE=${verType} -DVERDATE="${build_time}" -DGITINFO=${gitinfo} -DGITINFOI=${gitinfoOfInternal} -DVERNUMBER=${verNumber} -DVERCOMPATIBLE=${verNumberComp} -DPAGMODE=${pagMode}
   else
-    cmake ../../ -DCPUTYPE=${cpuType} -DOSTYPE=${osType} -DSOMODE=${soMode} -DVERTYPE=${verType} -DVERDATE="${build_time}" -DGITINFO=${gitinfo} -DGITINFOI=${gitinfoOfInternal} -DVERNUMBER=${verNumber} -DVERCOMPATIBLE=${verNumberComp}
+    cmake ../../ -DCPUTYPE=${cpuType} -DOSTYPE=${osType} -DSOMODE=${soMode} -DDBNAME=${dbName} -DVERTYPE=${verType} -DVERDATE="${build_time}" -DGITINFO=${gitinfo} -DGITINFOI=${gitinfoOfInternal} -DVERNUMBER=${verNumber} -DVERCOMPATIBLE=${verNumberComp}
   fi
 else
   echo "input cpuType=${cpuType} error!!!"
@@ -185,7 +192,7 @@ cd ${curr_dir}
 
 # 3. Call the corresponding script for packaging
 if [ "$osType" != "Darwin" ]; then
-  if [[ "$verMode" != "cluster" ]] && [[ "$cpuType" == "x64" ]]; then
+  if [[ "$verMode" != "cluster" ]] && [[ "$cpuType" == "x64" ]] && [[ "$dbName" == "taos" ]]; then
     echo "====do deb package for the ubuntu system===="
     output_dir="${top_dir}/debs"
     if [ -d ${output_dir} ]; then
@@ -208,11 +215,17 @@ if [ "$osType" != "Darwin" ]; then
   echo "====do tar.gz package for all systems===="
   cd ${script_dir}/tools
   
-	${csudo} ./makepkg.sh    ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
-	${csudo} ./makeclient.sh ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
-	${csudo} ./makearbi.sh   ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
+  if [[ "$dbName" == "taos" ]]; then  
+    ${csudo} ./makepkg.sh    ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
+    ${csudo} ./makeclient.sh ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
+    ${csudo} ./makearbi.sh   ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
+  else
+    ${csudo} ./makepkg_power.sh    ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode} ${dbName}
+    ${csudo} ./makeclient_power.sh ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode} ${dbName}
+    ${csudo} ./makearbi_power.sh   ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${pagMode}
+  fi
 else
   cd ${script_dir}/tools
-  ./makeclient.sh ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType}
+  ./makeclient.sh ${compile_dir} ${verNumber} "${build_time}" ${cpuType} ${osType} ${verMode} ${verType} ${dbName}
 fi
 
diff --git a/packaging/tools/install_client.sh b/packaging/tools/install_client.sh
index 6a1b7be191..24586d3390 100755
--- a/packaging/tools/install_client.sh
+++ b/packaging/tools/install_client.sh
@@ -85,7 +85,7 @@ function install_bin() {
   # Remove links
   ${csudo} rm -f ${bin_link_dir}/taos         || :
   if [ "$osType" == "Darwin" ]; then
-      ${csudo} rm -f ${bin_link_dir}/taosdump || :
+      ${csudo} rm -f ${bin_link_dir}/taosdemo || :
   fi
   ${csudo} rm -f ${bin_link_dir}/rmtaos       || :
   ${csudo} rm -f ${bin_link_dir}/set_core     || :
@@ -95,7 +95,7 @@ function install_bin() {
   #Make link
   [ -x ${install_main_dir}/bin/taos ] && ${csudo} ln -s ${install_main_dir}/bin/taos ${bin_link_dir}/taos                 || :
   if [ "$osType" == "Darwin" ]; then
-      [ -x ${install_main_dir}/bin/taosdump ] && ${csudo} ln -s ${install_main_dir}/bin/taosdump ${bin_link_dir}/taosdump || :
+      [ -x ${install_main_dir}/bin/taosdemo ] && ${csudo} ln -s ${install_main_dir}/bin/taosdemo ${bin_link_dir}/taosdemo || :
   fi
   [ -x ${install_main_dir}/bin/remove_client.sh ] && ${csudo} ln -s ${install_main_dir}/bin/remove_client.sh ${bin_link_dir}/rmtaos || :
   [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo} ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core || :
diff --git a/packaging/tools/makeclient.sh b/packaging/tools/makeclient.sh
index 8545a3e5e4..665fb2845c 100755
--- a/packaging/tools/makeclient.sh
+++ b/packaging/tools/makeclient.sh
@@ -41,7 +41,7 @@ fi
 
 if [ "$osType" != "Darwin" ]; then
   if [ "$pagMode" == "lite" ]; then
-    strip ${build_dir}/bin/taosd 
+    #strip ${build_dir}/bin/taosd 
     strip ${build_dir}/bin/taos
     bin_files="${build_dir}/bin/taos ${script_dir}/remove_client.sh"
   else  
diff --git a/packaging/tools/remove.sh b/packaging/tools/remove.sh
index dd6fe65eb7..e9a4f48cf7 100755
--- a/packaging/tools/remove.sh
+++ b/packaging/tools/remove.sh
@@ -102,36 +102,31 @@ function clean_log() {
 
 function clean_service_on_systemd() {
     taosd_service_config="${service_config_dir}/${taos_service_name}.service"
-
     if systemctl is-active --quiet ${taos_service_name}; then
         echo "TDengine taosd is running, stopping it..."
         ${csudo} systemctl stop ${taos_service_name} &> /dev/null || echo &> /dev/null
     fi
     ${csudo} systemctl disable ${taos_service_name} &> /dev/null || echo &> /dev/null
-
     ${csudo} rm -f ${taosd_service_config}
-
+    
+    tarbitratord_service_config="${service_config_dir}/${tarbitrator_service_name}.service"
+    if systemctl is-active --quiet ${tarbitrator_service_name}; then
+        echo "TDengine tarbitrator is running, stopping it..."
+        ${csudo} systemctl stop ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
+    fi
+    ${csudo} systemctl disable ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
+    ${csudo} rm -f ${tarbitratord_service_config}
+  
     if [ "$verMode" == "cluster" ]; then
-        tarbitratord_service_config="${service_config_dir}/${tarbitrator_service_name}.service"
-
-        if systemctl is-active --quiet ${tarbitrator_service_name}; then
-            echo "TDengine tarbitrator is running, stopping it..."
-            ${csudo} systemctl stop ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
-        fi
-        ${csudo} systemctl disable ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
-
-        ${csudo} rm -f ${tarbitratord_service_config}
-        
-		    nginx_service_config="${service_config_dir}/${nginx_service_name}.service"	
-   	 	  if [ -d ${bin_dir}/web ]; then
-   	        if systemctl is-active --quiet ${nginx_service_name}; then
-   	            echo "Nginx for TDengine is running, stopping it..."
-   	            ${csudo} systemctl stop ${nginx_service_name} &> /dev/null || echo &> /dev/null
-   	        fi
-   	        ${csudo} systemctl disable ${nginx_service_name} &> /dev/null || echo &> /dev/null
-        
-   	        ${csudo} rm -f ${nginx_service_config}
+		  nginx_service_config="${service_config_dir}/${nginx_service_name}.service"	
+   	 	if [ -d ${bin_dir}/web ]; then
+   	    if systemctl is-active --quiet ${nginx_service_name}; then
+   	      echo "Nginx for TDengine is running, stopping it..."
+   	      ${csudo} systemctl stop ${nginx_service_name} &> /dev/null || echo &> /dev/null
    	    fi
+   	    ${csudo} systemctl disable ${nginx_service_name} &> /dev/null || echo &> /dev/null
+   	    ${csudo} rm -f ${nginx_service_config}
+   	  fi
     fi 
 }
 
@@ -227,3 +222,4 @@ elif  echo $osinfo | grep -qwi "centos" ; then
 fi
 
 echo -e "${GREEN}TDengine is removed successfully!${NC}"
+echo 
\ No newline at end of file
diff --git a/packaging/tools/remove_client.sh b/packaging/tools/remove_client.sh
index 7cbf524d04..2c28b7b6bf 100755
--- a/packaging/tools/remove_client.sh
+++ b/packaging/tools/remove_client.sh
@@ -39,6 +39,7 @@ function clean_bin() {
     ${csudo} rm -f ${bin_link_dir}/taos      || :
     ${csudo} rm -f ${bin_link_dir}/taosdemo  || :
     ${csudo} rm -f ${bin_link_dir}/rmtaos    || :
+    ${csudo} rm -f ${bin_link_dir}/set_core  || :
 }
 
 function clean_lib() {
@@ -80,3 +81,4 @@ clean_config
 ${csudo} rm -rf ${install_main_dir}
 
 echo -e "${GREEN}TDengine client is removed successfully!${NC}"
+echo 
diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index b61890347f..4c8b448292 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -85,7 +85,11 @@ extern const int32_t TYPE_BYTES[11];
 #define TSDB_DATA_NULL_STR_L            "null"
 
 #define TSDB_DEFAULT_USER               "root"
+#ifdef _TD_OEM_POWER_
+#define TSDB_DEFAULT_PASS               "powerdb"
+#else
 #define TSDB_DEFAULT_PASS               "taosdata"
+#endif
 
 #define TSDB_TRUE   1
 #define TSDB_FALSE  0
diff --git a/src/kit/shell/src/shellEngine.c b/src/kit/shell/src/shellEngine.c
index 8f7f4d9324..18f4feb013 100644
--- a/src/kit/shell/src/shellEngine.c
+++ b/src/kit/shell/src/shellEngine.c
@@ -30,11 +30,22 @@
 #include <regex.h>
 
 /**************** Global variables ****************/
+#ifdef _TD_OEM_POWER_
+char      CLIENT_VERSION[] = "Welcome to the PowerDB shell from %s, Client Version:%s\n"
+                             "Copyright (c) 2017 by PowerDB, Inc. All rights reserved.\n\n";
+char      PROMPT_HEADER[] = "power> ";
+
+char      CONTINUE_PROMPT[] = "    -> ";
+int       prompt_size = 7;
+#else
 char      CLIENT_VERSION[] = "Welcome to the TDengine shell from %s, Client Version:%s\n"
                              "Copyright (c) 2017 by TAOS Data, Inc. All rights reserved.\n\n";
 char      PROMPT_HEADER[] = "taos> ";
+
 char      CONTINUE_PROMPT[] = "   -> ";
 int       prompt_size = 6;
+#endif
+
 TAOS_RES *result = NULL;
 SShellHistory   history;
 
diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 6469990c78..99fa92adb3 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -89,7 +89,11 @@ typedef struct DemoArguments {
     {0, 'h', "host",                     0, "The host to connect to TDengine. Default is localhost.",                                                           0},
     {0, 'p', "port",                     0, "The TCP/IP port number to use for the connection. Default is 0.",                                                  1},
     {0, 'u', "user",                     0, "The TDengine user name to use when connecting to the server. Default is 'root'.",                                  2},
+    #ifdef _TD_OEM_POWER_    
+    {0, 'P', "password",                 0, "The password to use when connecting to the server. Default is 'powerdb'.",                                         3},
+    #else
     {0, 'P', "password",                 0, "The password to use when connecting to the server. Default is 'taosdata'.",                                        3},
+    #endif
     {0, 'd', "database",                 0, "Destination database. Default is 'test'.",                                                                         3},
     {0, 'a', "replica",                  0, "Set the replica parameters of the database, Default 1, min: 1, max: 3.",                                              3},
     {0, 'm', "table_prefix",             0, "Table prefix name. Default is 't'.",                                                                               3},
@@ -104,7 +108,11 @@ typedef struct DemoArguments {
     {0, 'r', "num_of_records_per_req",   0, "The number of records per request. Default is 1000.",                                                              10},
     {0, 't', "num_of_tables",            0, "The number of tables. Default is 10000.",                                                                          11},
     {0, 'n', "num_of_records_per_table", 0, "The number of records per table. Default is 100000.",                                                              12},
+    #ifdef _TD_OEM_POWER_
+    {0, 'c', "config_directory",         0, "Configuration directory. Default is '/etc/power/'.",                                                               14},
+    #else
     {0, 'c', "config_directory",         0, "Configuration directory. Default is '/etc/taos/'.",                                                                14},
+    #endif
     {0, 'x', 0,                          0, "Insert only flag.",                                                                                                13},
     {0, 'O', "order",                    0, "Insert mode--0: In order, 1: Out of order. Default is in order.",                                                  14},
     {0, 'R', "rate",                     0, "Out of order data's rate--if order=1 Default 10, min: 0, max: 50.",                                                14},
@@ -279,7 +287,11 @@ typedef struct DemoArguments {
     printf("%s%s\n", indent, "-u");
     printf("%s%s%s\n", indent, indent, "user, The user name to use when connecting to the server. Default is 'root'.");
     printf("%s%s\n", indent, "-p");
+    #ifdef _TD_OEM_POWER_    
+    printf("%s%s%s\n", indent, indent, "password, The password to use when connecting to the server. Default is 'powerdb'.");
+    #else
     printf("%s%s%s\n", indent, indent, "password, The password to use when connecting to the server. Default is 'taosdata'.");
+    #endif
     printf("%s%s\n", indent, "-d");
     printf("%s%s%s\n", indent, indent, "database, Destination database. Default is 'test'.");
     printf("%s%s\n", indent, "-a");
@@ -309,7 +321,11 @@ typedef struct DemoArguments {
     printf("%s%s\n", indent, "-n");
     printf("%s%s%s\n", indent, indent, "num_of_records_per_table, The number of records per table. Default is 100000.");
     printf("%s%s\n", indent, "-c");
+    #ifdef _TD_OEM_POWER_
+    printf("%s%s%s\n", indent, indent, "config_directory, Configuration directory. Default is '/etc/power/'.");
+    #else
     printf("%s%s%s\n", indent, indent, "config_directory, Configuration directory. Default is '/etc/taos/'.");
+    #endif
     printf("%s%s\n", indent, "-x");
     printf("%s%s%s\n", indent, indent, "flag, Insert only flag.");
     printf("%s%s\n", indent, "-O");
@@ -513,7 +529,11 @@ int main(int argc, char *argv[]) {
   SDemoArguments arguments = {  NULL,            // host
                                 0,               // port
                                 "root",          // user
+                                #ifdef _TD_OEM_POWER_ 
+                                "powerdb",      // password
+                                #else
                                 "taosdata",      // password
+                                #endif
                                 "test",          // database
                                 1,               // replica
                                 "t",             // tb_prefix
diff --git a/src/os/src/linux/linuxEnv.c b/src/os/src/linux/linuxEnv.c
index 811d98ad7f..6946017e99 100644
--- a/src/os/src/linux/linuxEnv.c
+++ b/src/os/src/linux/linuxEnv.c
@@ -18,15 +18,25 @@
 #include "tglobal.h"
 
 void osInit() {
+
+#ifdef _TD_OEM_POWER_
+  if (configDir[0] == 0) {
+    strcpy(configDir, "/etc/power");
+  }
+  strcpy(tsDataDir, "/var/lib/power");
+  strcpy(tsLogDir, "/var/log/power");
+  strcpy(tsScriptDir, "/etc/power");
+#else
   if (configDir[0] == 0) {
     strcpy(configDir, "/etc/taos");
   }
+  strcpy(tsDataDir, "/var/lib/taos");
+  strcpy(tsLogDir, "/var/log/taos");
+  strcpy(tsScriptDir, "/etc/taos");
+#endif
 
   strcpy(tsVnodeDir, "");
   strcpy(tsDnodeDir, "");
   strcpy(tsMnodeDir, "");
-  strcpy(tsDataDir, "/var/lib/taos");
-  strcpy(tsLogDir, "/var/log/taos");
-  strcpy(tsScriptDir, "/etc/taos");
   strcpy(tsOsName, "Linux");
 }
\ No newline at end of file
diff --git a/src/util/src/tconfig.c b/src/util/src/tconfig.c
index 704af2017e..a976369287 100644
--- a/src/util/src/tconfig.c
+++ b/src/util/src/tconfig.c
@@ -260,8 +260,13 @@ void taosReadGlobalLogCfg() {
     }
     strcpy(configDir, full_path.we_wordv[0]);
   } else {
+    #ifdef _TD_OEM_POWER_
+    printf("configDir:%s not there, use default value: /etc/power", configDir);
+    strcpy(configDir, "/etc/power");
+    #else
     printf("configDir:%s not there, use default value: /etc/taos", configDir);
     strcpy(configDir, "/etc/taos");
+    #endif
   }
   wordfree(&full_path);
 
diff --git a/src/util/src/tlog.c b/src/util/src/tlog.c
index cf6ccdcbce..f532e2e93c 100644
--- a/src/util/src/tlog.c
+++ b/src/util/src/tlog.c
@@ -66,7 +66,11 @@ int32_t tsAsyncLog = 1;
 float   tsTotalLogDirGB = 0;
 float   tsAvailLogDirGB = 0;
 float   tsMinimalLogDirGB = 0.1f;
+#ifdef _TD_OEM_POWER_
+char    tsLogDir[TSDB_FILENAME_LEN] = "/var/log/power";
+#else
 char    tsLogDir[TSDB_FILENAME_LEN] = "/var/log/taos";
+#endif
 
 static SLogObj   tsLogObj = { .fileNum = 1 };
 static void *    taosAsyncOutputLog(void *param);

From 50e2dd7531be1c388475ecec439d100ef8cfd01e Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Sat, 29 Aug 2020 15:46:50 +0800
Subject: [PATCH 06/69] [TD-1228]

---
 packaging/deb/powerd                    |  88 +++
 packaging/rpm/powerd                    | 145 +++++
 packaging/tools/install_arbi_power.sh   | 297 ++++++++++
 packaging/tools/install_client_power.sh | 249 ++++++++
 packaging/tools/install_power.sh        | 733 ++++++++++++++++++++++++
 packaging/tools/makearbi_power.sh       |  75 +++
 packaging/tools/makeclient_power.sh     | 197 +++++++
 packaging/tools/makepkg_power.sh        | 215 +++++++
 packaging/tools/remove_arbi_power.sh    | 130 +++++
 packaging/tools/remove_client_power.sh  |  84 +++
 packaging/tools/remove_power.sh         | 226 ++++++++
 11 files changed, 2439 insertions(+)
 create mode 100644 packaging/deb/powerd
 create mode 100644 packaging/rpm/powerd
 create mode 100644 packaging/tools/install_arbi_power.sh
 create mode 100644 packaging/tools/install_client_power.sh
 create mode 100644 packaging/tools/install_power.sh
 create mode 100644 packaging/tools/makearbi_power.sh
 create mode 100644 packaging/tools/makeclient_power.sh
 create mode 100644 packaging/tools/makepkg_power.sh
 create mode 100644 packaging/tools/remove_arbi_power.sh
 create mode 100644 packaging/tools/remove_client_power.sh
 create mode 100644 packaging/tools/remove_power.sh

diff --git a/packaging/deb/powerd b/packaging/deb/powerd
new file mode 100644
index 0000000000..bb77aab166
--- /dev/null
+++ b/packaging/deb/powerd
@@ -0,0 +1,88 @@
+#!/bin/bash 
+#
+# Modified from original source: Elastic Search
+# https://github.com/elasticsearch/elasticsearch
+# Thank you to the Elastic Search authors
+#
+# chkconfig: 2345 99 01
+#
+### BEGIN INIT INFO
+# Provides:          PowerDB
+# Required-Start:    $local_fs $network $syslog
+# Required-Stop:     $local_fs $network $syslog
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Starts PowerDB powerd
+# Description:       Starts PowerDB powerd, a time-series database engine
+### END INIT INFO
+
+set -e
+
+PATH="/bin:/usr/bin:/sbin:/usr/sbin"
+NAME="PowerDB"
+USER="root"
+GROUP="root"
+DAEMON="/usr/local/power/bin/powerd"
+DAEMON_OPTS=""
+PID_FILE="/var/run/$NAME.pid"
+APPARGS=""
+
+# Maximum number of open files
+MAX_OPEN_FILES=65535
+
+. /lib/lsb/init-functions
+
+case "$1" in
+    start)
+
+        log_action_begin_msg "Starting PowerDB..."
+        if start-stop-daemon --test --start --chuid "$USER:$GROUP" --background --make-pidfile --pidfile "$PID_FILE" --exec "$DAEMON" -- $APPARGS &> /dev/null; then
+
+            touch "$PID_FILE" && chown "$USER":"$GROUP" "$PID_FILE"
+
+            if [ -n "$MAX_OPEN_FILES" ]; then
+                ulimit -n $MAX_OPEN_FILES
+            fi
+
+            start-stop-daemon --start --chuid "$USER:$GROUP" --background --make-pidfile --pidfile "$PID_FILE" --exec "$DAEMON" -- $APPARGS
+
+            log_end_msg $?
+        fi
+        ;;
+
+    stop)
+        log_action_begin_msg "Stopping PowerDB..."
+        set +e
+        if [ -f "$PID_FILE" ]; then
+            start-stop-daemon --stop --pidfile "$PID_FILE" --user "$USER" --retry=TERM/120/KILL/5 > /dev/null
+            if [ $? -eq 1 ]; then
+                log_action_cont_msg "TSD is not running but pid file exists, cleaning up"
+            elif [ $? -eq 3 ]; then
+                PID="`cat $PID_FILE`"
+                log_failure_msg "Failed to stop PowerDB (pid $PID)"
+                exit 1
+            fi
+            rm -f "$PID_FILE"
+        else
+            log_action_cont_msg "PowerDB was not running"
+        fi
+        log_action_end_msg 0
+        set -e
+        ;;
+
+    restart|force-reload)
+        if [ -f "$PID_FILE" ]; then
+            $0 stop
+            sleep 1
+        fi
+        $0 start
+        ;;
+    status)
+        status_of_proc -p "$PID_FILE" "$DAEMON" "$NAME"
+        ;;
+    *)
+        exit 1
+        ;;
+esac
+
+exit 0
diff --git a/packaging/rpm/powerd b/packaging/rpm/powerd
new file mode 100644
index 0000000000..bf7f19aea2
--- /dev/null
+++ b/packaging/rpm/powerd
@@ -0,0 +1,145 @@
+#!/bin/bash
+#
+# power      This shell script takes care of starting and stopping PowerDB.
+#
+# chkconfig: 2345 99 01
+# description: PowerDB is a districuted, scalable, high-performance Time Series Database
+#              (TSDB). More than just a pure database, PowerDB also provides the ability
+#              to do stream computing, aggregation etc.
+#
+#
+### BEGIN INIT INFO
+# Provides: powerd
+# Required-Start: $network $local_fs $remote_fs
+# Required-Stop: $network $local_fs $remote_fs
+# Short-Description: start and stop powerd
+# Description: PowerDB is a districuted, scalable, high-performance Time Series Database
+#              (TSDB). More than just a pure database, PowerDB also provides the ability
+#              to do stream computing, aggregation etc.
+### END INIT INFO
+
+# Source init functions
+. /etc/init.d/functions
+
+# Maximum number of open files
+MAX_OPEN_FILES=65535
+
+# Default program options
+NAME=powerd
+PROG=/usr/local/power/bin/powerd
+USER=root
+GROUP=root
+
+# Default directories
+LOCK_DIR=/var/lock/subsys
+PID_DIR=/var/run/$NAME
+
+# Set file names
+LOCK_FILE=$LOCK_DIR/$NAME
+PID_FILE=$PID_DIR/$NAME.pid
+
+[ -e $PID_DIR ] || mkdir -p $PID_DIR
+
+PROG_OPTS=""
+
+start() {
+    echo -n "Starting ${NAME}: "
+    # check identity
+    curid="`id -u -n`"
+    if [ "$curid" != root ] && [ "$curid" != "$USER" ] ; then
+        echo "Must be run as root or $USER, but was run as $curid"
+        return 1
+    fi
+    # Sets the maximum number of open file descriptors allowed.
+    ulimit -n $MAX_OPEN_FILES
+    curulimit="`ulimit -n`"
+    if [ "$curulimit" -lt $MAX_OPEN_FILES ] ; then
+        echo "'ulimit -n' must be greater than or equal to $MAX_OPEN_FILES, is $curulimit"
+        return 1
+    fi
+
+    if [ "`id -u -n`" == root ] ; then
+        # Changes the owner of the lock, and the pid files to allow
+        # non-root OpenTSDB daemons to run /usr/share/opentsdb/bin/opentsdb_restart.py.
+        touch $LOCK_FILE && chown $USER:$GROUP $LOCK_FILE
+        touch $PID_FILE && chown $USER:$GROUP $PID_FILE
+        daemon --user $USER --pidfile $PID_FILE "$PROG $PROG_OPTS &> /dev/null &"
+    else
+        # Don't have to change user.
+        daemon --pidfile $PID_FILE "$PROG $PROG_OPTS &> /dev/null &"
+    fi
+    retval=$?
+    sleep 2
+    echo
+    [ $retval -eq 0 ] && (findproc > $PID_FILE && touch $LOCK_FILE)
+    return $retval
+}
+
+stop() {
+    echo -n "Stopping ${NAME}: "
+    killproc -p $PID_FILE $NAME
+    retval=$?
+    echo
+    # Non-root users don't have enough permission to remove pid and lock files.
+    # So, the opentsdb_restart.py cannot get rid of the files, and the command
+    # "service opentsdb status" will complain about the existing pid file.
+    # Makes the pid file empty.
+    echo > $PID_FILE
+    [ $retval -eq 0 ] && (rm -f $PID_FILE && rm -f $LOCK_FILE)
+    return $retval
+}
+
+restart() {
+    stop
+    start
+}
+
+reload() {
+    restart
+}
+
+force_reload() {
+    restart
+}
+
+rh_status() {
+    # run checks to determine if the service is running or use generic status
+    status -p $PID_FILE -l $LOCK_FILE $NAME
+}
+
+rh_status_q() {
+    rh_status >/dev/null 2>&1
+}
+
+case "$1" in
+    start)
+        rh_status_q && exit 0
+        $1
+        ;;
+    stop)
+        rh_status_q || exit 0
+        $1
+        ;;
+    restart)
+        $1
+        ;;
+    reload)
+        rh_status_q || exit 7
+        $1
+        ;;
+    force-reload)
+        force_reload
+        ;;
+    status)
+        rh_status
+        ;;
+    condrestart|try-restart)
+        rh_status_q || exit 0
+        restart
+        ;;
+    *)
+        echo "Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
+        exit 2
+esac
+
+exit $?
diff --git a/packaging/tools/install_arbi_power.sh b/packaging/tools/install_arbi_power.sh
new file mode 100644
index 0000000000..4b12913760
--- /dev/null
+++ b/packaging/tools/install_arbi_power.sh
@@ -0,0 +1,297 @@
+#!/bin/bash
+#
+# This file is used to install database on linux systems. The operating system
+# is required to use systemd to manage services at boot
+
+set -e
+#set -x
+
+# -----------------------Variables definition---------------------
+script_dir=$(dirname $(readlink -f "$0"))
+
+bin_link_dir="/usr/bin"
+#inc_link_dir="/usr/include"
+
+#install main path
+install_main_dir="/usr/local/tarbitrator"
+
+# old bin dir
+bin_dir="/usr/local/tarbitrator/bin"
+
+service_config_dir="/etc/systemd/system"
+
+# Color setting
+RED='\033[0;31m'
+GREEN='\033[1;32m'
+GREEN_DARK='\033[0;32m'
+GREEN_UNDERLINE='\033[4;32m'
+NC='\033[0m'
+
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
+update_flag=0
+
+initd_mod=0
+service_mod=2
+if pidof systemd &> /dev/null; then
+    service_mod=0
+elif $(which service &> /dev/null); then    
+    service_mod=1
+    service_config_dir="/etc/init.d" 
+    if $(which chkconfig &> /dev/null); then
+         initd_mod=1 
+    elif $(which insserv &> /dev/null); then
+        initd_mod=2
+    elif $(which update-rc.d &> /dev/null); then
+        initd_mod=3
+    else
+        service_mod=2
+    fi
+else 
+    service_mod=2
+fi
+
+
+# get the operating system type for using the corresponding init file
+# ubuntu/debian(deb), centos/fedora(rpm), others: opensuse, redhat, ..., no verification
+#osinfo=$(awk -F= '/^NAME/{print $2}' /etc/os-release)
+if [[ -e /etc/os-release ]]; then
+  osinfo=$(cat /etc/os-release | grep "NAME" | cut -d '"' -f2)   ||:
+else
+  osinfo=""
+fi
+#echo "osinfo: ${osinfo}"
+os_type=0
+if echo $osinfo | grep -qwi "ubuntu" ; then
+#  echo "This is ubuntu system"
+  os_type=1
+elif echo $osinfo | grep -qwi "debian" ; then
+#  echo "This is debian system"
+  os_type=1
+elif echo $osinfo | grep -qwi "Kylin" ; then
+#  echo "This is Kylin system"
+  os_type=1
+elif  echo $osinfo | grep -qwi "centos" ; then
+#  echo "This is centos system"
+  os_type=2
+elif echo $osinfo | grep -qwi "fedora" ; then
+#  echo "This is fedora system"
+  os_type=2
+else
+  echo " osinfo: ${osinfo}"
+  echo " This is an officially unverified linux system," 
+  echo " if there are any problems with the installation and operation, "
+  echo " please feel free to contact taosdata.com for support."
+  os_type=1
+fi
+
+function kill_tarbitrator() {
+  pid=$(ps -ef | grep "tarbitrator" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+
+function install_main_path() {
+    #create install main dir and all sub dir
+    ${csudo} rm -rf ${install_main_dir}    || :
+    ${csudo} mkdir -p ${install_main_dir}
+    ${csudo} mkdir -p ${install_main_dir}/bin  
+    #${csudo} mkdir -p ${install_main_dir}/include
+    ${csudo} mkdir -p ${install_main_dir}/init.d
+}
+
+function install_bin() {
+    # Remove links
+    ${csudo} rm -f ${bin_link_dir}/rmtarbitrator   || :
+    ${csudo} rm -f ${bin_link_dir}/tarbitrator     || :
+    ${csudo} cp -r ${script_dir}/bin/* ${install_main_dir}/bin && ${csudo} chmod 0555 ${install_main_dir}/bin/*
+
+    #Make link
+    [ -x ${install_main_dir}/bin/remove_arbi_power.sh ] && ${csudo} ln -s ${install_main_dir}/bin/remove_arbi_power.sh ${bin_link_dir}/rmtarbitrator  || :
+    [ -x ${install_main_dir}/bin/tarbitrator ] && ${csudo} ln -s ${install_main_dir}/bin/tarbitrator ${bin_link_dir}/tarbitrator || :
+}
+
+function install_header() {
+    ${csudo} rm -f ${inc_link_dir}/taos.h ${inc_link_dir}/taoserror.h    || :
+    ${csudo} cp -f ${script_dir}/inc/* ${install_main_dir}/include && ${csudo} chmod 644 ${install_main_dir}/include/*    
+    ${csudo} ln -s ${install_main_dir}/include/taos.h ${inc_link_dir}/taos.h
+    ${csudo} ln -s ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
+}
+
+function clean_service_on_sysvinit() {
+    #restart_config_str="taos:2345:respawn:${service_config_dir}/taosd start"
+    #${csudo} sed -i "\|${restart_config_str}|d" /etc/inittab || :    
+       
+    if pidof tarbitrator &> /dev/null; then
+        ${csudo} service tarbitratord stop || :
+    fi
+
+    if ((${initd_mod}==1)); then
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} chkconfig --del tarbitratord || :
+      fi
+    elif ((${initd_mod}==2)); then
+      if [ -e ${service_config_dir}/tarbitratord ]; then
+        ${csudo} insserv -r tarbitratord || :
+      fi
+    elif ((${initd_mod}==3)); then
+      if [ -e ${service_config_dir}/tarbitratord ]; then
+        ${csudo} update-rc.d -f tarbitratord remove || :
+      fi
+    fi    
+
+    ${csudo} rm -f ${service_config_dir}/tarbitratord || :
+    
+    if $(which init &> /dev/null); then
+        ${csudo} init q || :
+    fi
+}
+
+function install_service_on_sysvinit() {
+    clean_service_on_sysvinit
+    sleep 1
+
+    # Install powerd service
+
+    if ((${os_type}==1)); then
+        ${csudo} cp -f ${script_dir}/init.d/tarbitratord.deb ${install_main_dir}/init.d/tarbitratord
+        ${csudo} cp    ${script_dir}/init.d/tarbitratord.deb ${service_config_dir}/tarbitratord && ${csudo} chmod a+x ${service_config_dir}/tarbitratord
+    elif ((${os_type}==2)); then
+        ${csudo} cp -f ${script_dir}/init.d/tarbitratord.rpm ${install_main_dir}/init.d/tarbitratord
+        ${csudo} cp    ${script_dir}/init.d/tarbitratord.rpm ${service_config_dir}/tarbitratord && ${csudo} chmod a+x ${service_config_dir}/tarbitratord
+    fi
+    
+    #restart_config_str="power:2345:respawn:${service_config_dir}/powerd start"
+    #${csudo} grep -q -F "$restart_config_str" /etc/inittab || ${csudo} bash -c "echo '${restart_config_str}' >> /etc/inittab"
+    
+    if ((${initd_mod}==1)); then
+        ${csudo} chkconfig --add tarbitratord || :
+        ${csudo} chkconfig --level 2345 tarbitratord on || :
+    elif ((${initd_mod}==2)); then
+        ${csudo} insserv tarbitratord || :
+        ${csudo} insserv -d tarbitratord || :
+    elif ((${initd_mod}==3)); then
+        ${csudo} update-rc.d tarbitratord defaults || :
+    fi
+}
+
+function clean_service_on_systemd() {
+  tarbitratord_service_config="${service_config_dir}/tarbitratord.service"
+  if systemctl is-active --quiet tarbitratord; then
+      echo "tarbitrator is running, stopping it..."
+      ${csudo} systemctl stop tarbitratord &> /dev/null || echo &> /dev/null
+  fi
+  ${csudo} systemctl disable tarbitratord &> /dev/null || echo &> /dev/null
+
+  ${csudo} rm -f ${tarbitratord_service_config}
+}
+
+# power:2345:respawn:/etc/init.d/tarbitratord start
+
+function install_service_on_systemd() {
+    clean_service_on_systemd
+
+    tarbitratord_service_config="${service_config_dir}/tarbitratord.service"
+
+    ${csudo} bash -c "echo '[Unit]'                                  >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Description=PowerDB arbitrator service' >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'After=network-online.target'             >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Wants=network-online.target'             >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo                                           >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo '[Service]'                               >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Type=simple'                             >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'ExecStart=/usr/bin/tarbitrator'          >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'LimitNOFILE=infinity'                    >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'LimitNPROC=infinity'                     >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'LimitCORE=infinity'                      >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'TimeoutStartSec=0'                       >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'StandardOutput=null'                     >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Restart=always'                          >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'StartLimitBurst=3'                       >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'StartLimitInterval=60s'                  >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo                                           >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo '[Install]'                               >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'WantedBy=multi-user.target'              >> ${tarbitratord_service_config}"
+    ${csudo} systemctl enable tarbitratord
+}
+
+function install_service() {
+    if ((${service_mod}==0)); then
+        install_service_on_systemd
+    elif ((${service_mod}==1)); then
+        install_service_on_sysvinit
+    else
+        # must manual stop taosd
+        kill_tarbitrator
+    fi
+}
+
+function update_PowerDB() {
+    # Start to update
+    echo -e "${GREEN}Start to update PowerDB's arbitrator ...${NC}"
+    # Stop the service if running
+    if pidof tarbitrator &> /dev/null; then
+        if ((${service_mod}==0)); then
+            ${csudo} systemctl stop tarbitratord || :
+        elif ((${service_mod}==1)); then
+            ${csudo} service tarbitratord stop || :
+        else
+            kill_tarbitrator
+        fi
+        sleep 1
+    fi
+    
+    install_main_path
+    #install_header
+    install_bin
+    install_service
+		
+    echo
+    #echo -e "${GREEN_DARK}To configure PowerDB ${NC}: edit /etc/taos/taos.cfg"
+    if ((${service_mod}==0)); then
+        echo -e "${GREEN_DARK}To start arbitrator     ${NC}: ${csudo} systemctl start tarbitratord${NC}"
+    elif ((${service_mod}==1)); then
+        echo -e "${GREEN_DARK}To start arbitrator     ${NC}: ${csudo} service tarbitratord start${NC}"
+    else
+        echo -e "${GREEN_DARK}To start arbitrator     ${NC}: ./tarbitrator${NC}"
+    fi                
+    echo
+    echo -e "\033[44;32;1mPowerDB's arbitrator is updated successfully!${NC}"
+}
+
+function install_PowerDB() {
+    # Start to install
+    echo -e "${GREEN}Start to install PowerDB's arbitrator ...${NC}"
+    
+    install_main_path	   
+    #install_header
+    install_bin
+    install_service
+    echo
+    #echo -e "${GREEN_DARK}To configure PowerDB ${NC}: edit /etc/taos/taos.cfg"
+    if ((${service_mod}==0)); then
+        echo -e "${GREEN_DARK}To start arbitrator     ${NC}: ${csudo} systemctl start tarbitratord${NC}"
+    elif ((${service_mod}==1)); then
+        echo -e "${GREEN_DARK}To start arbitrator     ${NC}: ${csudo} service tarbitratord start${NC}"
+    else
+        echo -e "${GREEN_DARK}To start arbitrator     ${NC}: tarbitrator${NC}"
+    fi
+
+    echo -e "\033[44;32;1mPowerDB's arbitrator is installed successfully!${NC}"
+    echo
+}
+
+
+## ==============================Main program starts from here============================
+# Install server and client
+if [ -x ${bin_dir}/tarbitrator ]; then
+    update_flag=1
+    update_PowerDB
+else
+    install_PowerDB
+fi
+
diff --git a/packaging/tools/install_client_power.sh b/packaging/tools/install_client_power.sh
new file mode 100644
index 0000000000..0108d1d44a
--- /dev/null
+++ b/packaging/tools/install_client_power.sh
@@ -0,0 +1,249 @@
+#!/bin/bash
+#
+# This file is used to install PowerDB client on linux systems. The operating system
+# is required to use systemd to manage services at boot
+
+set -e
+#set -x
+
+# -----------------------Variables definition---------------------
+
+osType=Linux
+pagMode=full
+
+if [ "$osType" != "Darwin" ]; then
+    script_dir=$(dirname $(readlink -f "$0"))
+    # Dynamic directory
+    data_dir="/var/lib/power"
+    log_dir="/var/log/power"
+else
+    script_dir=`dirname $0`
+    cd ${script_dir}
+    script_dir="$(pwd)"
+    data_dir="/var/lib/power"
+    log_dir="~/PowerDBLog"
+fi
+
+log_link_dir="/usr/local/power/log"
+
+cfg_install_dir="/etc/power"
+
+if [ "$osType" != "Darwin" ]; then
+    bin_link_dir="/usr/bin"
+    lib_link_dir="/usr/lib"
+    lib64_link_dir="/usr/lib64"
+    inc_link_dir="/usr/include"
+else
+    bin_link_dir="/usr/local/bin"
+    lib_link_dir="/usr/local/lib"
+    inc_link_dir="/usr/local/include"
+fi
+
+#install main path
+install_main_dir="/usr/local/power"
+
+# old bin dir
+bin_dir="/usr/local/power/bin"
+
+# v1.5 jar dir
+#v15_java_app_dir="/usr/local/lib/power"
+
+# Color setting
+RED='\033[0;31m'
+GREEN='\033[1;32m'
+GREEN_DARK='\033[0;32m'
+GREEN_UNDERLINE='\033[4;32m'
+NC='\033[0m'
+
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
+update_flag=0
+
+function kill_client() {
+  pid=$(ps -ef | grep "power" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+
+function install_main_path() {
+    #create install main dir and all sub dir
+    ${csudo} rm -rf ${install_main_dir}    || :
+    ${csudo} mkdir -p ${install_main_dir}
+    ${csudo} mkdir -p ${install_main_dir}/cfg
+    ${csudo} mkdir -p ${install_main_dir}/bin
+    ${csudo} mkdir -p ${install_main_dir}/connector
+    ${csudo} mkdir -p ${install_main_dir}/driver
+    ${csudo} mkdir -p ${install_main_dir}/examples
+    ${csudo} mkdir -p ${install_main_dir}/include
+}
+
+function install_bin() {
+  # Remove links
+  ${csudo} rm -f ${bin_link_dir}/power         || :
+  if [ "$osType" == "Darwin" ]; then
+      ${csudo} rm -f ${bin_link_dir}/powerdemo || :
+  fi
+  ${csudo} rm -f ${bin_link_dir}/rmpower       || :
+  ${csudo} rm -f ${bin_link_dir}/set_core      || :
+
+  ${csudo} cp -r ${script_dir}/bin/* ${install_main_dir}/bin && ${csudo} chmod 0555 ${install_main_dir}/bin/*
+
+  #Make link
+  [ -x ${install_main_dir}/bin/power ] && ${csudo} ln -s ${install_main_dir}/bin/power ${bin_link_dir}/power                 || :
+  if [ "$osType" == "Darwin" ]; then
+      [ -x ${install_main_dir}/bin/powerdemo ] && ${csudo} ln -s ${install_main_dir}/bin/powerdemo ${bin_link_dir}/powerdemo || :
+  fi
+  [ -x ${install_main_dir}/bin/remove_client_power.sh ] && ${csudo} ln -s ${install_main_dir}/bin/remove_client_power.sh ${bin_link_dir}/rmpower || :
+  [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo} ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core || :
+}
+
+function clean_lib() {
+    sudo rm -f /usr/lib/libtaos.* || :
+    sudo rm -rf ${lib_dir} || :
+}
+
+function install_lib() {
+    # Remove links
+    ${csudo} rm -f ${lib_link_dir}/libtaos.*         || :
+    ${csudo} rm -f ${lib64_link_dir}/libtaos.*       || :
+    #${csudo} rm -rf ${v15_java_app_dir}              || :
+
+    ${csudo} cp -rf ${script_dir}/driver/* ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
+
+    if [ "$osType" != "Darwin" ]; then
+        ${csudo} ln -s ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.so.1
+        ${csudo} ln -s ${lib_link_dir}/libtaos.so.1 ${lib_link_dir}/libtaos.so
+        
+        if [ -d "${lib64_link_dir}" ]; then
+	        ${csudo} ln -s ${install_main_dir}/driver/libtaos.* ${lib64_link_dir}/libtaos.so.1       || :
+	        ${csudo} ln -s ${lib64_link_dir}/libtaos.so.1 ${lib64_link_dir}/libtaos.so               || :
+	      fi
+    else
+        ${csudo} ln -s ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.1.dylib
+        ${csudo} ln -s ${lib_link_dir}/libtaos.1.dylib ${lib_link_dir}/libtaos.dylib
+    fi
+    
+    ${csudo} ldconfig
+}
+
+function install_header() {
+    ${csudo} rm -f ${inc_link_dir}/taos.h ${inc_link_dir}/taoserror.h    || :
+    ${csudo} cp -f ${script_dir}/inc/* ${install_main_dir}/include && ${csudo} chmod 644 ${install_main_dir}/include/*
+    ${csudo} ln -s ${install_main_dir}/include/taos.h ${inc_link_dir}/taos.h
+    ${csudo} ln -s ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
+}
+
+function install_config() {
+    #${csudo} rm -f ${install_main_dir}/cfg/taos.cfg     || :
+
+    if [ ! -f ${cfg_install_dir}/taos.cfg ]; then
+        ${csudo} mkdir -p ${cfg_install_dir}
+        [ -f ${script_dir}/cfg/taos.cfg ] && ${csudo} cp ${script_dir}/cfg/taos.cfg ${cfg_install_dir}
+        ${csudo} chmod 644 ${cfg_install_dir}/*
+    fi
+
+    ${csudo} cp -f ${script_dir}/cfg/taos.cfg ${install_main_dir}/cfg/taos.cfg.org
+    ${csudo} ln -s ${cfg_install_dir}/taos.cfg ${install_main_dir}/cfg
+}
+
+
+function install_log() {
+    ${csudo} rm -rf ${log_dir}  || :
+
+    if [ "$osType" != "Darwin" ]; then
+        ${csudo} mkdir -p ${log_dir} && ${csudo} chmod 777 ${log_dir}
+    else
+        mkdir -p ${log_dir} && ${csudo} chmod 777 ${log_dir}
+    fi
+    ${csudo} ln -s ${log_dir} ${install_main_dir}/log
+}
+
+function install_connector() {
+    ${csudo} cp -rf ${script_dir}/connector/* ${install_main_dir}/connector
+}
+
+function install_examples() {
+    if [ -d ${script_dir}/examples ]; then
+        ${csudo} cp -rf ${script_dir}/examples/* ${install_main_dir}/examples
+    fi
+}
+
+function update_PowerDB() {
+    # Start to update
+    if [ ! -e power.tar.gz ]; then
+        echo "File power.tar.gz does not exist"
+        exit 1
+    fi
+    tar -zxf power.tar.gz
+
+    echo -e "${GREEN}Start to update PowerDB client...${NC}"
+    # Stop the client shell if running
+    if pidof power &> /dev/null; then
+        kill_client
+        sleep 1
+    fi
+
+    install_main_path
+
+    install_log
+    install_header
+    install_lib
+    if [ "$pagMode" != "lite" ]; then
+      install_connector
+    fi
+    install_examples
+    install_bin
+    install_config
+
+    echo
+    echo -e "\033[44;32;1mPowerDB client is updated successfully!${NC}"
+
+    rm -rf $(tar -tf power.tar.gz)
+}
+
+function install_PowerDB() {
+    # Start to install
+    if [ ! -e power.tar.gz ]; then
+        echo "File power.tar.gz does not exist"
+        exit 1
+    fi
+    tar -zxf power.tar.gz
+
+    echo -e "${GREEN}Start to install PowerDB client...${NC}"
+
+	install_main_path
+    install_log
+    install_header
+    install_lib
+    if [ "$pagMode" != "lite" ]; then
+      install_connector
+    fi
+    install_examples
+    install_bin
+    install_config
+
+    echo
+    echo -e "\033[44;32;1mPowerDB client is installed successfully!${NC}"
+
+    rm -rf $(tar -tf power.tar.gz)
+}
+
+
+## ==============================Main program starts from here============================
+# Install or updata client and client
+# if server is already install, don't install client
+  if [ -e ${bin_dir}/powerd ]; then
+      echo -e "\033[44;32;1mThere are already installed PowerDB server, so don't need install client!${NC}"
+      exit 0
+  fi
+
+  if [ -x ${bin_dir}/power ]; then
+      update_flag=1
+      update_PowerDB
+  else
+      install_PowerDB
+  fi
diff --git a/packaging/tools/install_power.sh b/packaging/tools/install_power.sh
new file mode 100644
index 0000000000..df6291f4ae
--- /dev/null
+++ b/packaging/tools/install_power.sh
@@ -0,0 +1,733 @@
+#!/bin/bash
+#
+# This file is used to install database on linux systems. The operating system
+# is required to use systemd to manage services at boot
+
+set -e
+#set -x
+
+verMode=edge
+pagMode=full
+
+# -----------------------Variables definition---------------------
+script_dir=$(dirname $(readlink -f "$0"))
+# Dynamic directory
+data_dir="/var/lib/power"
+log_dir="/var/log/power"
+
+data_link_dir="/usr/local/power/data"
+log_link_dir="/usr/local/power/log"
+
+cfg_install_dir="/etc/power"
+
+bin_link_dir="/usr/bin"
+lib_link_dir="/usr/lib"
+lib64_link_dir="/usr/lib64"
+inc_link_dir="/usr/include"
+
+#install main path
+install_main_dir="/usr/local/power"
+
+# old bin dir
+bin_dir="/usr/local/power/bin"
+
+# v1.5 jar dir
+#v15_java_app_dir="/usr/local/lib/power"
+
+service_config_dir="/etc/systemd/system"
+nginx_port=6060
+nginx_dir="/usr/local/nginxd"
+
+# Color setting
+RED='\033[0;31m'
+GREEN='\033[1;32m'
+GREEN_DARK='\033[0;32m'
+GREEN_UNDERLINE='\033[4;32m'
+NC='\033[0m'
+
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
+update_flag=0
+
+initd_mod=0
+service_mod=2
+if pidof systemd &> /dev/null; then
+    service_mod=0
+elif $(which service &> /dev/null); then    
+    service_mod=1
+    service_config_dir="/etc/init.d" 
+    if $(which chkconfig &> /dev/null); then
+         initd_mod=1 
+    elif $(which insserv &> /dev/null); then
+        initd_mod=2
+    elif $(which update-rc.d &> /dev/null); then
+        initd_mod=3
+    else
+        service_mod=2
+    fi
+else 
+    service_mod=2
+fi
+
+
+# get the operating system type for using the corresponding init file
+# ubuntu/debian(deb), centos/fedora(rpm), others: opensuse, redhat, ..., no verification
+#osinfo=$(awk -F= '/^NAME/{print $2}' /etc/os-release)
+if [[ -e /etc/os-release ]]; then
+  osinfo=$(cat /etc/os-release | grep "NAME" | cut -d '"' -f2)   ||:
+else
+  osinfo=""
+fi
+#echo "osinfo: ${osinfo}"
+os_type=0
+if echo $osinfo | grep -qwi "ubuntu" ; then
+#  echo "This is ubuntu system"
+  os_type=1
+elif echo $osinfo | grep -qwi "debian" ; then
+#  echo "This is debian system"
+  os_type=1
+elif echo $osinfo | grep -qwi "Kylin" ; then
+#  echo "This is Kylin system"
+  os_type=1
+elif  echo $osinfo | grep -qwi "centos" ; then
+#  echo "This is centos system"
+  os_type=2
+elif echo $osinfo | grep -qwi "fedora" ; then
+#  echo "This is fedora system"
+  os_type=2
+else
+  echo " osinfo: ${osinfo}"
+  echo " This is an officially unverified linux system," 
+  echo " if there are any problems with the installation and operation, "
+  echo " please feel free to contact taosdata.com for support."
+  os_type=1
+fi
+
+
+# =============================  get input parameters =================================================
+
+# install.sh -v [server | client]  -e [yes | no] -i [systemd | service | ...]
+
+# set parameters by default value
+interactiveFqdn=yes   # [yes | no]
+verType=server        # [server | client]
+initType=systemd      # [systemd | service | ...]
+
+while getopts "hv:e:i:" arg
+do
+  case $arg in
+    e)
+      #echo "interactiveFqdn=$OPTARG"
+      interactiveFqdn=$( echo $OPTARG )
+      ;;
+    v)
+      #echo "verType=$OPTARG"
+      verType=$(echo $OPTARG)
+      ;;
+    i)
+      #echo "initType=$OPTARG"
+      initType=$(echo $OPTARG)
+      ;;
+    h)
+      echo "Usage: `basename $0` -v [server | client]  -e [yes | no]"
+      exit 0
+      ;;
+    ?) #unknow option 
+      echo "unkonw argument"
+      exit 1
+      ;;
+  esac
+done
+
+#echo "verType=${verType} interactiveFqdn=${interactiveFqdn}"
+
+function kill_powerd() {
+  pid=$(ps -ef | grep "powerd" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+
+function install_main_path() {
+    #create install main dir and all sub dir
+    ${csudo} rm -rf ${install_main_dir}    || :
+    ${csudo} mkdir -p ${install_main_dir}  
+    ${csudo} mkdir -p ${install_main_dir}/cfg
+    ${csudo} mkdir -p ${install_main_dir}/bin    
+    ${csudo} mkdir -p ${install_main_dir}/connector
+    ${csudo} mkdir -p ${install_main_dir}/driver
+    ${csudo} mkdir -p ${install_main_dir}/examples
+    ${csudo} mkdir -p ${install_main_dir}/include
+    ${csudo} mkdir -p ${install_main_dir}/init.d
+    if [ "$verMode" == "cluster" ]; then
+        ${csudo} mkdir -p ${nginx_dir}
+    fi
+}
+
+function install_bin() {
+    # Remove links
+    ${csudo} rm -f ${bin_link_dir}/power     || :
+    ${csudo} rm -f ${bin_link_dir}/powerd    || :
+    ${csudo} rm -f ${bin_link_dir}/powerdemo || :
+    ${csudo} rm -f ${bin_link_dir}/rmpower   || :
+    ${csudo} rm -f ${bin_link_dir}/tarbitrator   || :
+    ${csudo} rm -f ${bin_link_dir}/set_core   || :
+
+    ${csudo} cp -r ${script_dir}/bin/* ${install_main_dir}/bin && ${csudo} chmod 0555 ${install_main_dir}/bin/*
+
+    #Make link
+    [ -x ${install_main_dir}/bin/power ] && ${csudo} ln -s ${install_main_dir}/bin/power ${bin_link_dir}/power                        || :
+    [ -x ${install_main_dir}/bin/powerd ] && ${csudo} ln -s ${install_main_dir}/bin/powerd ${bin_link_dir}/powerd                     || :
+    [ -x ${install_main_dir}/bin/powerdemo ] && ${csudo} ln -s ${install_main_dir}/bin/powerdemo ${bin_link_dir}/powerdemo            || :
+    [ -x ${install_main_dir}/bin/remove_power.sh ] && ${csudo} ln -s ${install_main_dir}/bin/remove_power.sh ${bin_link_dir}/rmpower  || :
+    [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo} ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core         || :
+    [ -x ${install_main_dir}/bin/tarbitrator ] && ${csudo} ln -s ${install_main_dir}/bin/tarbitrator ${bin_link_dir}/tarbitrator      || :
+
+    if [ "$verMode" == "cluster" ]; then
+        ${csudo} cp -r ${script_dir}/nginxd/* ${nginx_dir} && ${csudo} chmod 0555 ${nginx_dir}/*
+        ${csudo} mkdir -p ${nginx_dir}/logs
+        ${csudo} chmod 777 ${nginx_dir}/sbin/nginx
+    fi
+}
+
+function install_lib() {
+    # Remove links
+    ${csudo} rm -f ${lib_link_dir}/libtaos.*         || :
+    ${csudo} rm -f ${lib64_link_dir}/libtaos.*       || :
+    #${csudo} rm -rf ${v15_java_app_dir}              || :
+    ${csudo} cp -rf ${script_dir}/driver/* ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*  
+    
+    ${csudo} ln -s ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.so.1
+    ${csudo} ln -s ${lib_link_dir}/libtaos.so.1 ${lib_link_dir}/libtaos.so
+    
+    if [[ -d ${lib64_link_dir} && ! -e ${lib64_link_dir}/libtaos.so ]]; then
+      ${csudo} ln -s ${install_main_dir}/driver/libtaos.* ${lib64_link_dir}/libtaos.so.1       || :
+      ${csudo} ln -s ${lib64_link_dir}/libtaos.so.1 ${lib64_link_dir}/libtaos.so               || :
+    fi
+        
+	  #if [ "$verMode" == "cluster" ]; then
+    #    # Compatible with version 1.5
+    #    ${csudo} mkdir -p ${v15_java_app_dir}
+    #    ${csudo} ln -s ${install_main_dir}/connector/taos-jdbcdriver-1.0.2-dist.jar ${v15_java_app_dir}/JDBCDriver-1.0.2-dist.jar
+    #    ${csudo} chmod 777 ${v15_java_app_dir} || :
+    #fi
+    
+    ${csudo} ldconfig
+}
+
+function install_header() {
+    ${csudo} rm -f ${inc_link_dir}/taos.h ${inc_link_dir}/taoserror.h    || :
+    ${csudo} cp -f ${script_dir}/inc/* ${install_main_dir}/include && ${csudo} chmod 644 ${install_main_dir}/include/*    
+    ${csudo} ln -s ${install_main_dir}/include/taos.h ${inc_link_dir}/taos.h
+    ${csudo} ln -s ${install_main_dir}/include/taoserror.h ${inc_link_dir}/taoserror.h
+}
+
+function install_config() {
+    #${csudo} rm -f ${install_main_dir}/cfg/taos.cfg     || :
+    
+    if [ ! -f ${cfg_install_dir}/taos.cfg ]; then
+        ${csudo} mkdir -p ${cfg_install_dir}
+        [ -f ${script_dir}/cfg/taos.cfg ] && ${csudo} cp ${script_dir}/cfg/taos.cfg ${cfg_install_dir}
+        ${csudo} chmod 644 ${cfg_install_dir}/*
+    fi 
+    
+    ${csudo} cp -f ${script_dir}/cfg/taos.cfg ${install_main_dir}/cfg/taos.cfg.org
+    ${csudo} ln -s ${cfg_install_dir}/taos.cfg ${install_main_dir}/cfg
+
+    [ ! -z $1 ] && return 0 || : # only install client
+    
+    if ((${update_flag}==1)); then
+        return 0
+    fi
+    
+    if [ "$interactiveFqdn" == "no" ]; then
+        return 0
+    fi
+
+    #FQDN_FORMAT="(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
+    #FQDN_FORMAT="(:[1-6][0-9][0-9][0-9][0-9]$)"
+    #PORT_FORMAT="(/[1-6][0-9][0-9][0-9][0-9]?/)"
+    #FQDN_PATTERN=":[0-9]{1,5}$"
+
+    # first full-qualified domain name (FQDN) for PowerDB cluster system
+    echo
+    echo -e -n "${GREEN}Enter FQDN:port (like h1.powerdata.com:6030) of an existing PowerDB cluster node to join${NC}"
+    echo
+    echo -e -n "${GREEN}OR leave it blank to build one${NC}:"
+    read firstEp
+    while true; do
+        if [ ! -z "$firstEp" ]; then
+            # check the format of the firstEp
+            #if [[ $firstEp == $FQDN_PATTERN ]]; then
+                # Write the first FQDN to configuration file                    
+                ${csudo} sed -i -r "s/#*\s*(firstEp\s*).*/\1$firstEp/" ${cfg_install_dir}/taos.cfg    
+                break
+            #else
+            #    read -p "Please enter the correct FQDN:port: " firstEp
+            #fi
+        else
+            break
+        fi
+    done	
+}
+
+
+function install_log() {
+    ${csudo} rm -rf ${log_dir}  || :
+    ${csudo} mkdir -p ${log_dir} && ${csudo} chmod 777 ${log_dir}
+    
+    ${csudo} ln -s ${log_dir} ${install_main_dir}/log
+}
+
+function install_data() {
+    ${csudo} mkdir -p ${data_dir}
+    
+    ${csudo} ln -s ${data_dir} ${install_main_dir}/data    
+}
+
+function install_connector() {
+    ${csudo} cp -rf ${script_dir}/connector/* ${install_main_dir}/connector
+}
+
+function install_examples() {
+    if [ -d ${script_dir}/examples ]; then
+        ${csudo} cp -rf ${script_dir}/examples/* ${install_main_dir}/examples
+    fi
+}
+
+function clean_service_on_sysvinit() {
+    #restart_config_str="power:2345:respawn:${service_config_dir}/powerd start"
+    #${csudo} sed -i "\|${restart_config_str}|d" /etc/inittab || :    
+    
+    if pidof powerd &> /dev/null; then
+        ${csudo} service powerd stop || :
+    fi
+    
+    if pidof tarbitrator &> /dev/null; then
+        ${csudo} service tarbitratord stop || :
+    fi
+
+    if ((${initd_mod}==1)); then
+      if [ -e ${service_config_dir}/powerd ]; then 
+        ${csudo} chkconfig --del powerd || :
+      fi
+
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} chkconfig --del tarbitratord || :
+      fi
+    elif ((${initd_mod}==2)); then
+      if [ -e ${service_config_dir}/powerd ]; then 
+        ${csudo} insserv -r powerd || :
+      fi
+      if [ -e ${service_config_dir}/tarbitratord ]; then
+        ${csudo} insserv -r tarbitratord || :
+      fi
+    elif ((${initd_mod}==3)); then
+      if [ -e ${service_config_dir}/powerd ]; then
+        ${csudo} update-rc.d -f powerd remove || :
+      fi
+      if [ -e ${service_config_dir}/tarbitratord ]; then
+        ${csudo} update-rc.d -f tarbitratord remove || :
+      fi
+    fi
+    
+    ${csudo} rm -f ${service_config_dir}/powerd || :
+    ${csudo} rm -f ${service_config_dir}/tarbitratord || :
+    
+    if $(which init &> /dev/null); then
+        ${csudo} init q || :
+    fi
+}
+
+function install_service_on_sysvinit() {
+    clean_service_on_sysvinit
+    sleep 1
+
+    # Install powerd service
+
+    if ((${os_type}==1)); then
+        ${csudo} cp -f ${script_dir}/init.d/powerd.deb ${install_main_dir}/init.d/powerd
+        ${csudo} cp    ${script_dir}/init.d/powerd.deb ${service_config_dir}/powerd && ${csudo} chmod a+x ${service_config_dir}/powerd
+        ${csudo} cp -f ${script_dir}/init.d/tarbitratord.deb ${install_main_dir}/init.d/tarbitratord
+        ${csudo} cp    ${script_dir}/init.d/tarbitratord.deb ${service_config_dir}/tarbitratord && ${csudo} chmod a+x ${service_config_dir}/tarbitratord
+    elif ((${os_type}==2)); then
+        ${csudo} cp -f ${script_dir}/init.d/powerd.rpm ${install_main_dir}/init.d/powerd
+        ${csudo} cp    ${script_dir}/init.d/powerd.rpm ${service_config_dir}/powerd && ${csudo} chmod a+x ${service_config_dir}/powerd
+        ${csudo} cp -f ${script_dir}/init.d/tarbitratord.rpm ${install_main_dir}/init.d/tarbitratord
+        ${csudo} cp    ${script_dir}/init.d/tarbitratord.rpm ${service_config_dir}/tarbitratord && ${csudo} chmod a+x ${service_config_dir}/tarbitratord
+    fi
+    
+    #restart_config_str="power:2345:respawn:${service_config_dir}/powerd start"
+    #${csudo} grep -q -F "$restart_config_str" /etc/inittab || ${csudo} bash -c "echo '${restart_config_str}' >> /etc/inittab"
+    
+    if ((${initd_mod}==1)); then
+        ${csudo} chkconfig --add powerd || :
+        ${csudo} chkconfig --level 2345 powerd on || :
+        ${csudo} chkconfig --add tarbitratord || :
+        ${csudo} chkconfig --level 2345 tarbitratord on || :
+    elif ((${initd_mod}==2)); then
+        ${csudo} insserv powerd || :
+        ${csudo} insserv -d powerd || :
+        ${csudo} insserv tarbitratord || :
+        ${csudo} insserv -d tarbitratord || :
+    elif ((${initd_mod}==3)); then
+        ${csudo} update-rc.d powerd defaults || :
+        ${csudo} update-rc.d tarbitratord defaults || :
+    fi
+}
+
+function clean_service_on_systemd() {
+    powerd_service_config="${service_config_dir}/powerd.service"
+    if systemctl is-active --quiet powerd; then
+        echo "PowerDB is running, stopping it..."
+        ${csudo} systemctl stop powerd &> /dev/null || echo &> /dev/null
+    fi
+    ${csudo} systemctl disable powerd &> /dev/null || echo &> /dev/null
+    ${csudo} rm -f ${powerd_service_config}
+    
+    tarbitratord_service_config="${service_config_dir}/tarbitratord.service"
+    if systemctl is-active --quiet tarbitratord; then
+        echo "tarbitrator is running, stopping it..."
+        ${csudo} systemctl stop tarbitratord &> /dev/null || echo &> /dev/null
+    fi
+    ${csudo} systemctl disable tarbitratord &> /dev/null || echo &> /dev/null
+    ${csudo} rm -f ${tarbitratord_service_config}
+        
+    if [ "$verMode" == "cluster" ]; then
+      nginx_service_config="${service_config_dir}/nginxd.service"
+      if systemctl is-active --quiet nginxd; then
+        echo "Nginx for TDengine is running, stopping it..."
+        ${csudo} systemctl stop nginxd &> /dev/null || echo &> /dev/null
+      fi
+      ${csudo} systemctl disable nginxd &> /dev/null || echo &> /dev/null
+      ${csudo} rm -f ${nginx_service_config}              
+	  fi
+}
+
+# power:2345:respawn:/etc/init.d/powerd start
+
+function install_service_on_systemd() {
+    clean_service_on_systemd
+
+    powerd_service_config="${service_config_dir}/powerd.service"
+    ${csudo} bash -c "echo '[Unit]'                              >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'Description=PowerDB server service'  >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'After=network-online.target'         >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'Wants=network-online.target'         >> ${powerd_service_config}"
+    ${csudo} bash -c "echo                                       >> ${powerd_service_config}"
+    ${csudo} bash -c "echo '[Service]'                           >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'Type=simple'                         >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'ExecStart=/usr/bin/powerd'           >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'LimitNOFILE=infinity'                >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'LimitNPROC=infinity'                 >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'LimitCORE=infinity'                  >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'TimeoutStartSec=0'                   >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'StandardOutput=null'                 >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'Restart=always'                      >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'StartLimitBurst=3'                   >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'StartLimitInterval=60s'              >> ${powerd_service_config}"
+    ${csudo} bash -c "echo                                       >> ${powerd_service_config}"
+    ${csudo} bash -c "echo '[Install]'                           >> ${powerd_service_config}"
+    ${csudo} bash -c "echo 'WantedBy=multi-user.target'          >> ${powerd_service_config}"
+    ${csudo} systemctl enable powerd
+    
+    tarbitratord_service_config="${service_config_dir}/tarbitratord.service"
+    ${csudo} bash -c "echo '[Unit]'                                  >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Description=TDengine arbitrator service' >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'After=network-online.target'             >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Wants=network-online.target'             >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo                                           >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo '[Service]'                               >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Type=simple'                             >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'ExecStart=/usr/bin/tarbitrator'          >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'LimitNOFILE=infinity'                    >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'LimitNPROC=infinity'                     >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'LimitCORE=infinity'                      >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'TimeoutStartSec=0'                       >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'StandardOutput=null'                     >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'Restart=always'                          >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'StartLimitBurst=3'                       >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'StartLimitInterval=60s'                  >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo                                           >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo '[Install]'                               >> ${tarbitratord_service_config}"
+    ${csudo} bash -c "echo 'WantedBy=multi-user.target'              >> ${tarbitratord_service_config}"
+    #${csudo} systemctl enable tarbitratord  
+        
+    if [ "$verMode" == "cluster" ]; then		
+        nginx_service_config="${service_config_dir}/nginxd.service"
+        ${csudo} bash -c "echo '[Unit]'                                             >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'Description=Nginx For PowrDB Service'               >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'After=network-online.target'                        >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'Wants=network-online.target'                        >> ${nginx_service_config}"
+        ${csudo} bash -c "echo                                                      >> ${nginx_service_config}"
+        ${csudo} bash -c "echo '[Service]'                                          >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'Type=forking'                                       >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'PIDFile=/usr/local/nginxd/logs/nginx.pid'           >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'ExecStart=/usr/local/nginxd/sbin/nginx'             >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'ExecStop=/usr/local/nginxd/sbin/nginx -s stop'      >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'LimitNOFILE=infinity'                               >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'LimitNPROC=infinity'                                >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'LimitCORE=infinity'                                 >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'TimeoutStartSec=0'                                  >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'StandardOutput=null'                                >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'Restart=always'                                     >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'StartLimitBurst=3'                                  >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'StartLimitInterval=60s'                             >> ${nginx_service_config}"
+        ${csudo} bash -c "echo                                                      >> ${nginx_service_config}"
+        ${csudo} bash -c "echo '[Install]'                                          >> ${nginx_service_config}"
+        ${csudo} bash -c "echo 'WantedBy=multi-user.target'                         >> ${nginx_service_config}"
+        if ! ${csudo} systemctl enable nginxd &> /dev/null; then
+            ${csudo} systemctl daemon-reexec
+            ${csudo} systemctl enable nginxd
+        fi
+        ${csudo} systemctl start nginxd
+	fi
+}
+
+function install_service() {
+    if ((${service_mod}==0)); then
+        install_service_on_systemd
+    elif ((${service_mod}==1)); then
+        install_service_on_sysvinit
+    else
+        # must manual stop powerd
+        kill_powerd
+    fi
+}
+
+vercomp () {
+    if [[ $1 == $2 ]]; then
+        return 0
+    fi
+    local IFS=.
+    local i ver1=($1) ver2=($2)
+    # fill empty fields in ver1 with zeros
+    for ((i=${#ver1[@]}; i<${#ver2[@]}; i++)); do
+        ver1[i]=0
+    done
+
+    for ((i=0; i<${#ver1[@]}; i++)); do
+        if [[ -z ${ver2[i]} ]]
+        then
+            # fill empty fields in ver2 with zeros
+            ver2[i]=0
+        fi
+        if ((10#${ver1[i]} > 10#${ver2[i]}))
+        then
+            return 1
+        fi
+        if ((10#${ver1[i]} < 10#${ver2[i]}))
+        then
+            return 2
+        fi
+    done
+    return 0
+}
+
+function is_version_compatible() {
+
+    curr_version=$(${bin_dir}/powerd -V | head -1 | cut -d ' ' -f 3)
+
+    min_compatible_version=$(${script_dir}/bin/powerd -V | head -1 | cut -d ' ' -f 5)
+
+    vercomp $curr_version $min_compatible_version
+    case $? in
+        0) return 0;;
+        1) return 0;;
+        2) return 1;;
+    esac
+}
+
+function update_PowerDB() {
+    # Start to update
+    if [ ! -e power.tar.gz ]; then
+        echo "File power.tar.gz does not exist"
+        exit 1
+    fi
+    tar -zxf power.tar.gz
+
+    # Check if version compatible
+    if ! is_version_compatible; then
+        echo -e "${RED}Version incompatible${NC}"
+        return 1
+    fi
+
+    echo -e "${GREEN}Start to update PowerDB...${NC}"
+    # Stop the service if running
+    if pidof powerd &> /dev/null; then
+        if ((${service_mod}==0)); then
+            ${csudo} systemctl stop powerd || :
+        elif ((${service_mod}==1)); then
+            ${csudo} service powerd stop || :
+        else
+            kill_powerd
+        fi
+        sleep 1
+    fi
+    
+    install_main_path
+
+    install_log
+    install_header
+    install_lib
+    if [ "$pagMode" != "lite" ]; then
+      install_connector
+    fi
+    install_examples
+    if [ -z $1 ]; then
+        install_bin
+        install_service
+        install_config		
+		
+        openresty_work=false
+		    if [ "$verMode" == "cluster" ]; then    
+            # Check if openresty is installed
+            # Check if nginx is installed successfully
+            if type curl &> /dev/null; then
+                if curl -sSf http://127.0.0.1:${nginx_port} &> /dev/null; then
+                    echo -e "\033[44;32;1mNginx for PowerDB is updated successfully!${NC}"
+                    openresty_work=true
+                else
+                    echo -e "\033[44;31;5mNginx for PowerDB does not work! Please try again!\033[0m"
+                fi
+            fi
+		    fi 
+
+        #echo
+        #echo -e "\033[44;32;1mPowerDB is updated successfully!${NC}"
+        echo
+        echo -e "${GREEN_DARK}To configure PowerDB ${NC}: edit /etc/power/taos.cfg"
+        if ((${service_mod}==0)); then
+            echo -e "${GREEN_DARK}To start PowerDB     ${NC}: ${csudo} systemctl start powerd${NC}"
+        elif ((${service_mod}==1)); then
+            echo -e "${GREEN_DARK}To start PowerDB     ${NC}: ${csudo} service powerd start${NC}"
+        else
+            echo -e "${GREEN_DARK}To start PowerDB     ${NC}: ./powerd${NC}"
+        fi
+
+        if [ ${openresty_work} = 'true' ]; then
+            echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
+        else
+            echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell${NC}"
+        fi
+                
+        echo
+        echo -e "\033[44;32;1mPowerDB is updated successfully!${NC}"
+    else
+        install_bin
+        install_config
+
+        echo
+        echo -e "\033[44;32;1mPowerDB client is updated successfully!${NC}"
+    fi
+
+    rm -rf $(tar -tf power.tar.gz)
+}
+
+function install_PowerDB() {
+    # Start to install
+    if [ ! -e power.tar.gz ]; then
+        echo "File power.tar.gz does not exist"
+        exit 1
+    fi
+    tar -zxf power.tar.gz
+
+    echo -e "${GREEN}Start to install PowerDB...${NC}"
+    
+	  install_main_path
+	   
+    if [ -z $1 ]; then
+        install_data
+    fi 
+    
+    install_log 
+    install_header
+    install_lib
+    if [ "$pagMode" != "lite" ]; then
+      install_connector
+    fi
+    install_examples
+
+    if [ -z $1 ]; then # install service and client
+        # For installing new
+        install_bin
+        install_service
+
+        openresty_work=false
+        if [ "$verMode" == "cluster" ]; then
+            # Check if nginx is installed successfully
+            if type curl &> /dev/null; then
+                if curl -sSf http://127.0.0.1:${nginx_port} &> /dev/null; then
+                    echo -e "\033[44;32;1mNginx for PowerDB is installed successfully!${NC}"
+                    openresty_work=true
+                else
+                    echo -e "\033[44;31;5mNginx for PowerDB does not work! Please try again!\033[0m"
+                fi
+            fi
+        fi
+		
+        install_config	
+
+        # Ask if to start the service
+        #echo
+        #echo -e "\033[44;32;1mPowerDB is installed successfully!${NC}"
+        echo
+        echo -e "${GREEN_DARK}To configure PowerDB ${NC}: edit /etc/power/taos.cfg"
+        if ((${service_mod}==0)); then
+            echo -e "${GREEN_DARK}To start PowerDB     ${NC}: ${csudo} systemctl start powerd${NC}"
+        elif ((${service_mod}==1)); then
+            echo -e "${GREEN_DARK}To start PowerDB     ${NC}: ${csudo} service powerd start${NC}"
+        else
+            echo -e "${GREEN_DARK}To start PowerDB     ${NC}: powerd${NC}"
+        fi		
+
+        if [ ${openresty_work} = 'true' ]; then
+             echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell OR from ${GREEN_UNDERLINE}http://127.0.0.1:${nginx_port}${NC}"
+        else
+             echo -e "${GREEN_DARK}To access PowerDB    ${NC}: use ${GREEN_UNDERLINE}power${NC} in shell${NC}"
+        fi
+		
+        if [ ! -z "$firstEp" ]; then
+	        echo		    
+	        echo -e "${GREEN_DARK}Please run${NC}: power -h $firstEp${GREEN_DARK} to login into cluster, then${NC}"
+	        echo -e "${GREEN_DARK}execute ${NC}: create dnode 'newDnodeFQDN:port'; ${GREEN_DARK}to add this new node${NC}"
+          echo
+        fi
+        echo -e "\033[44;32;1mPowerDB is installed successfully!${NC}"
+        echo       
+    else # Only install client
+        install_bin
+        install_config
+
+        echo
+        echo -e "\033[44;32;1mPowerDB client is installed successfully!${NC}"
+    fi
+
+    rm -rf $(tar -tf power.tar.gz)
+}
+
+
+## ==============================Main program starts from here============================
+if [ "$verType" == "server" ]; then
+    # Install server and client
+    if [ -x ${bin_dir}/powerd ]; then
+        update_flag=1
+        update_PowerDB
+    else
+        install_PowerDB
+    fi
+elif [ "$verType" == "client" ]; then
+    interactiveFqdn=no
+    # Only install client
+    if [ -x ${bin_dir}/power ]; then
+        update_flag=1
+        update_PowerDB client
+    else
+        install_PowerDB client
+    fi
+else 
+    echo  "please input correct verType"   
+fi
diff --git a/packaging/tools/makearbi_power.sh b/packaging/tools/makearbi_power.sh
new file mode 100644
index 0000000000..5296cc8e3f
--- /dev/null
+++ b/packaging/tools/makearbi_power.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+#
+# Generate arbitrator's tar.gz setup package for all os system
+
+set -e
+#set -x
+
+curr_dir=$(pwd)
+compile_dir=$1
+version=$2
+build_time=$3
+cpuType=$4
+osType=$5
+verMode=$6
+verType=$7
+pagMode=$8
+
+script_dir="$(dirname $(readlink -f $0))"
+top_dir="$(readlink -f ${script_dir}/../..)"
+
+# create compressed install file.
+build_dir="${compile_dir}/build"
+code_dir="${top_dir}/src"
+release_dir="${top_dir}/release"
+
+#package_name='linux'
+if [ "$verMode" == "cluster" ]; then
+    install_dir="${release_dir}/PowerDB-enterprise-arbitrator"
+else
+    install_dir="${release_dir}/PowerDB-arbitrator"
+fi
+
+# Directories and files.
+bin_files="${build_dir}/bin/tarbitrator ${script_dir}/remove_arbi_power.sh"
+install_files="${script_dir}/install_arbi_power.sh"
+
+#header_files="${code_dir}/inc/taos.h ${code_dir}/inc/taoserror.h"
+init_file_tarbitrator_deb=${script_dir}/../deb/tarbitratord
+init_file_tarbitrator_rpm=${script_dir}/../rpm/tarbitratord
+
+# make directories.
+mkdir -p ${install_dir} && cp ${install_files} ${install_dir} && chmod a+x ${install_dir}/install_arbi_power.sh || :
+#mkdir -p ${install_dir}/inc && cp ${header_files} ${install_dir}/inc || :
+mkdir -p ${install_dir}/bin && cp ${bin_files} ${install_dir}/bin && chmod a+x ${install_dir}/bin/* || :
+mkdir -p ${install_dir}/init.d && cp ${init_file_tarbitrator_deb} ${install_dir}/init.d/tarbitratord.deb || :
+mkdir -p ${install_dir}/init.d && cp ${init_file_tarbitrator_rpm} ${install_dir}/init.d/tarbitratord.rpm || :
+
+cd ${release_dir} 
+
+if [ "$verMode" == "cluster" ]; then
+  pkg_name=${install_dir}-${version}-${osType}-${cpuType}
+elif [ "$verMode" == "edge" ]; then
+  pkg_name=${install_dir}-${version}-${osType}-${cpuType}
+else
+  echo "unknow verMode, nor cluster or edge"
+  exit 1
+fi
+
+if [ "$verType" == "beta" ]; then
+  pkg_name=${pkg_name}-${verType}
+elif [ "$verType" == "stable" ]; then 
+  pkg_name=${pkg_name} 
+else
+  echo "unknow verType, nor stabel or beta"
+  exit 1
+fi
+
+tar -zcv -f "$(basename ${pkg_name}).tar.gz" $(basename ${install_dir}) --remove-files || :
+exitcode=$?
+if [ "$exitcode" != "0" ]; then
+    echo "tar ${pkg_name}.tar.gz error !!!"
+    exit $exitcode
+fi
+
+cd ${curr_dir}
diff --git a/packaging/tools/makeclient_power.sh b/packaging/tools/makeclient_power.sh
new file mode 100644
index 0000000000..d4be52f679
--- /dev/null
+++ b/packaging/tools/makeclient_power.sh
@@ -0,0 +1,197 @@
+#!/bin/bash
+#
+# Generate tar.gz package for linux client in all os system
+set -e
+#set -x
+
+curr_dir=$(pwd)
+compile_dir=$1
+version=$2
+build_time=$3
+cpuType=$4
+osType=$5
+verMode=$6
+verType=$7
+pagMode=$8
+
+if [ "$osType" != "Darwin" ]; then
+    script_dir="$(dirname $(readlink -f $0))"
+    top_dir="$(readlink -f ${script_dir}/../..)"
+else
+    script_dir=`dirname $0`
+    cd ${script_dir}
+    script_dir="$(pwd)"
+    top_dir=${script_dir}/../..
+fi
+
+# create compressed install file.
+build_dir="${compile_dir}/build"
+code_dir="${top_dir}/src"
+release_dir="${top_dir}/release"
+
+#package_name='linux'
+
+if [ "$verMode" == "cluster" ]; then
+    install_dir="${release_dir}/PowerDB-enterprise-client"
+else
+    install_dir="${release_dir}/PowerDB-client"
+fi
+
+# Directories and files.
+
+if [ "$osType" != "Darwin" ]; then
+#  if [ "$pagMode" == "lite" ]; then
+#    strip ${build_dir}/bin/powerd 
+#    strip ${build_dir}/bin/power
+#    bin_files="${build_dir}/bin/power ${script_dir}/remove_client_power.sh"
+#  else  
+#    bin_files="${build_dir}/bin/power ${build_dir}/bin/powerdemo ${script_dir}/remove_client_power.sh ${script_dir}/set_core.sh"
+#  fi
+  lib_files="${build_dir}/lib/libtaos.so.${version}"
+else
+  bin_files="${build_dir}/bin/power ${script_dir}/remove_client_power.sh"
+  lib_files="${build_dir}/lib/libtaos.${version}.dylib"
+fi
+
+header_files="${code_dir}/inc/taos.h ${code_dir}/inc/taoserror.h"
+cfg_dir="${top_dir}/packaging/cfg"
+
+install_files="${script_dir}/install_client_power.sh"
+
+# make directories.
+mkdir -p ${install_dir}
+mkdir -p ${install_dir}/inc && cp ${header_files} ${install_dir}/inc
+mkdir -p ${install_dir}/cfg && cp ${cfg_dir}/taos.cfg ${install_dir}/cfg/taos.cfg
+
+sed -i '/dataDir/ {s/taos/power/g}'  ${install_dir}/cfg/taos.cfg
+sed -i '/logDir/  {s/taos/power/g}'  ${install_dir}/cfg/taos.cfg
+sed -i "s/TDengine/PowerDB/g"        ${install_dir}/cfg/taos.cfg
+
+mkdir -p ${install_dir}/bin
+if [ "$osType" != "Darwin" ]; then
+  if [ "$pagMode" == "lite" ]; then
+    strip ${build_dir}/bin/taos
+    cp ${build_dir}/bin/taos          ${install_dir}/bin/power
+    cp ${script_dir}/remove_power.sh  ${install_dir}/bin
+  else 
+    cp ${build_dir}/bin/taos          ${install_dir}/bin/power
+    cp ${script_dir}/remove_power.sh  ${install_dir}/bin
+    cp ${build_dir}/bin/taosdemo      ${install_dir}/bin/powerdemo   
+    cp ${script_dir}/set_core.sh      ${install_dir}/bin
+  fi
+else
+  cp ${bin_files} ${install_dir}/bin
+fi
+chmod a+x ${install_dir}/bin/* || :
+
+cd ${install_dir}
+
+if [ "$osType" != "Darwin" ]; then
+    tar -zcv -f power.tar.gz * --remove-files || :
+else
+    tar -zcv -f power.tar.gz * || :
+    mv power.tar.gz ..
+    rm -rf ./*
+    mv ../power.tar.gz .
+fi
+
+cd ${curr_dir}
+cp ${install_files} ${install_dir}
+if [ "$osType" == "Darwin" ]; then
+    sed 's/osType=Linux/osType=Darwin/g' ${install_dir}/install_client_power.sh >> install_client_power_temp.sh
+    mv install_client_power_temp.sh ${install_dir}/install_client_power.sh
+fi
+if [ "$pagMode" == "lite" ]; then
+    sed 's/pagMode=full/pagMode=lite/g' ${install_dir}/install_client_power.sh >> install_client_power_temp.sh
+    mv install_client_power_temp.sh ${install_dir}/install_client_power.sh
+fi
+chmod a+x ${install_dir}/install_client_power.sh
+
+# Copy example code
+mkdir -p ${install_dir}/examples
+examples_dir="${top_dir}/tests/examples"
+cp -r ${examples_dir}/c      ${install_dir}/examples
+sed -i '/passwd/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/c/*.c
+sed -i '/root/   {s/taosdata/powerdb/g}'  ${install_dir}/examples/c/*.c
+
+if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
+  cp -r ${examples_dir}/JDBC   ${install_dir}/examples
+  cp -r ${examples_dir}/matlab ${install_dir}/examples
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/matlab/TDengineDemo.m
+  cp -r ${examples_dir}/python ${install_dir}/examples  
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/python/read_example.py
+  cp -r ${examples_dir}/R      ${install_dir}/examples
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/R/command.txt
+  cp -r ${examples_dir}/go     ${install_dir}/examples  
+  sed -i '/root/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/go/src/taosapp/taosapp.go
+fi
+# Copy driver
+mkdir -p ${install_dir}/driver 
+cp ${lib_files} ${install_dir}/driver
+
+# Copy connector
+connector_dir="${code_dir}/connector"
+mkdir -p ${install_dir}/connector
+
+if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
+  if [ "$osType" != "Darwin" ]; then
+    cp ${build_dir}/lib/*.jar      ${install_dir}/connector
+  fi
+  cp -r ${connector_dir}/grafanaplugin ${install_dir}/connector/
+  cp -r ${connector_dir}/python  ${install_dir}/connector/
+  cp -r ${connector_dir}/go      ${install_dir}/connector 
+  
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python2/taos/cinterface.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python3/taos/cinterface.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python2/taos/cinterface.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python3/taos/cinterface.py
+  
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python2/taos/subscription.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python3/taos/subscription.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python2/taos/subscription.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python3/taos/subscription.py
+  
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python2/taos/connection.py
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python3/taos/connection.py
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python2/taos/connection.py
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python3/taos/connection.py 
+fi
+# Copy release note
+# cp ${script_dir}/release_note ${install_dir}
+
+# exit 1
+
+cd ${release_dir} 
+
+if [ "$verMode" == "cluster" ]; then
+  pkg_name=${install_dir}-${version}-${osType}-${cpuType}
+elif [ "$verMode" == "edge" ]; then
+  pkg_name=${install_dir}-${version}-${osType}-${cpuType}
+else
+  echo "unknow verMode, nor cluster or edge"
+  exit 1
+fi
+
+if [ "$pagMode" == "lite" ]; then
+  pkg_name=${pkg_name}-Lite
+fi
+
+if [ "$verType" == "beta" ]; then
+  pkg_name=${pkg_name}-${verType}
+elif [ "$verType" == "stable" ]; then  
+  pkg_name=${pkg_name} 
+else
+  echo "unknow verType, nor stable or beta"
+  exit 1
+fi
+
+if [ "$osType" != "Darwin" ]; then
+    tar -zcv -f "$(basename ${pkg_name}).tar.gz" $(basename ${install_dir}) --remove-files || :
+else
+    tar -zcv -f "$(basename ${pkg_name}).tar.gz" $(basename ${install_dir}) || :
+    mv "$(basename ${pkg_name}).tar.gz" ..
+    rm -rf ./*
+    mv ../"$(basename ${pkg_name}).tar.gz" .
+fi
+
+cd ${curr_dir}
diff --git a/packaging/tools/makepkg_power.sh b/packaging/tools/makepkg_power.sh
new file mode 100644
index 0000000000..744f78e514
--- /dev/null
+++ b/packaging/tools/makepkg_power.sh
@@ -0,0 +1,215 @@
+#!/bin/bash
+#
+# Generate tar.gz package for all os system
+
+set -e
+#set -x
+
+curr_dir=$(pwd)
+compile_dir=$1
+version=$2
+build_time=$3
+cpuType=$4
+osType=$5
+verMode=$6
+verType=$7
+pagMode=$8
+
+script_dir="$(dirname $(readlink -f $0))"
+top_dir="$(readlink -f ${script_dir}/../..)"
+
+# create compressed install file.
+build_dir="${compile_dir}/build"
+code_dir="${top_dir}/src"
+release_dir="${top_dir}/release"
+
+#package_name='linux'
+if [ "$verMode" == "cluster" ]; then
+    install_dir="${release_dir}/PowerDB-enterprise-server"
+else
+    install_dir="${release_dir}/PowerDB-server"
+fi
+
+# Directories and files.
+#if [ "$pagMode" == "lite" ]; then
+#  strip ${build_dir}/bin/taosd 
+#  strip ${build_dir}/bin/taos
+#  bin_files="${build_dir}/bin/powerd ${build_dir}/bin/power ${script_dir}/remove_power.sh"
+#else 
+#  bin_files="${build_dir}/bin/powerd ${build_dir}/bin/power ${build_dir}/bin/powerdemo ${build_dir}/bin/tarbitrator ${script_dir}/remove_power.sh ${script_dir}/set_core.sh"
+#fi
+
+lib_files="${build_dir}/lib/libtaos.so.${version}"
+header_files="${code_dir}/inc/taos.h ${code_dir}/inc/taoserror.h"
+cfg_dir="${top_dir}/packaging/cfg"
+install_files="${script_dir}/install_power.sh"
+nginx_dir="${code_dir}/../../enterprise/src/plugins/web"
+
+# Init file
+#init_dir=${script_dir}/deb
+#if [ $package_type = "centos" ]; then
+#    init_dir=${script_dir}/rpm
+#fi
+#init_files=${init_dir}/powerd
+# temp use rpm's powerd. TODO: later modify according to os type
+init_file_deb=${script_dir}/../deb/powerd
+init_file_rpm=${script_dir}/../rpm/powerd
+init_file_tarbitrator_deb=${script_dir}/../deb/tarbitratord
+init_file_tarbitrator_rpm=${script_dir}/../rpm/tarbitratord
+
+# make directories.
+mkdir -p ${install_dir}
+mkdir -p ${install_dir}/inc && cp ${header_files} ${install_dir}/inc
+mkdir -p ${install_dir}/cfg && cp ${cfg_dir}/taos.cfg ${install_dir}/cfg/taos.cfg
+
+#mkdir -p ${install_dir}/bin && cp ${bin_files} ${install_dir}/bin && chmod a+x ${install_dir}/bin/* || :
+mkdir -p ${install_dir}/bin
+if [ "$pagMode" == "lite" ]; then
+  strip ${build_dir}/bin/taosd 
+  strip ${build_dir}/bin/taos
+#  bin_files="${build_dir}/bin/powerd ${build_dir}/bin/power ${script_dir}/remove_power.sh"
+  cp ${build_dir}/bin/taos          ${install_dir}/bin/power
+  cp ${build_dir}/bin/taosd         ${install_dir}/bin/powerd
+  cp ${script_dir}/remove_power.sh  ${install_dir}/bin
+else 
+#  bin_files="${build_dir}/bin/powerd ${build_dir}/bin/power ${build_dir}/bin/powerdemo ${build_dir}/bin/tarbitrator ${script_dir}/remove_power.sh ${script_dir}/set_core.sh"
+  cp ${build_dir}/bin/taos          ${install_dir}/bin/power
+  cp ${build_dir}/bin/taosd         ${install_dir}/bin/powerd
+  cp ${script_dir}/remove_power.sh  ${install_dir}/bin
+  cp ${build_dir}/bin/taosdemo      ${install_dir}/bin/powerdemo   
+  cp ${build_dir}/bin/tarbitrator   ${install_dir}/bin
+  cp ${script_dir}/set_core.sh      ${install_dir}/bin
+fi
+chmod a+x ${install_dir}/bin/* || :
+
+mkdir -p ${install_dir}/init.d && cp ${init_file_deb} ${install_dir}/init.d/powerd.deb
+mkdir -p ${install_dir}/init.d && cp ${init_file_rpm} ${install_dir}/init.d/powerd.rpm
+mkdir -p ${install_dir}/init.d && cp ${init_file_tarbitrator_deb} ${install_dir}/init.d/tarbitratord.deb || :
+mkdir -p ${install_dir}/init.d && cp ${init_file_tarbitrator_rpm} ${install_dir}/init.d/tarbitratord.rpm || :
+
+if [ "$verMode" == "cluster" ]; then
+    sed 's/verMode=edge/verMode=cluster/g' ${install_dir}/bin/remove_power.sh >> remove_power_temp.sh
+    mv remove_power_temp.sh ${install_dir}/bin/remove_power.sh
+    
+    mkdir -p ${install_dir}/nginxd && cp -r ${nginx_dir}/* ${install_dir}/nginxd
+    cp ${nginx_dir}/png/taos.png ${install_dir}/nginxd/admin/images/taos.png
+    rm -rf ${install_dir}/nginxd/png
+
+    sed -i "s/TDengine/PowerDB/g"   ${install_dir}/nginxd/admin/*.html 
+    sed -i "s/TDengine/PowerDB/g"   ${install_dir}/nginxd/admin/js/*.js
+    
+    sed -i '/dataDir/ {s/taos/power/g}'  ${install_dir}/cfg/taos.cfg
+    sed -i '/logDir/  {s/taos/power/g}'  ${install_dir}/cfg/taos.cfg
+    sed -i "s/TDengine/PowerDB/g"        ${install_dir}/cfg/taos.cfg
+
+    if [ "$cpuType" == "aarch64" ]; then
+        cp -f ${install_dir}/nginxd/sbin/arm/64bit/nginx ${install_dir}/nginxd/sbin/
+    elif [ "$cpuType" == "aarch32" ]; then
+        cp -f ${install_dir}/nginxd/sbin/arm/32bit/nginx ${install_dir}/nginxd/sbin/
+    fi
+    rm -rf ${install_dir}/nginxd/sbin/arm
+fi
+
+cd ${install_dir}
+tar -zcv -f power.tar.gz * --remove-files  || :
+exitcode=$?
+if [ "$exitcode" != "0" ]; then
+    echo "tar power.tar.gz error !!!"
+    exit $exitcode
+fi
+
+cd ${curr_dir}
+cp ${install_files} ${install_dir}
+if [ "$verMode" == "cluster" ]; then
+    sed 's/verMode=edge/verMode=cluster/g' ${install_dir}/install_power.sh >> install_power_temp.sh
+    mv install_power_temp.sh ${install_dir}/install_power.sh
+fi
+if [ "$pagMode" == "lite" ]; then
+    sed 's/pagMode=full/pagMode=lite/g' ${install_dir}/install.sh >> install_power_temp.sh
+    mv install_power_temp.sh ${install_dir}/install_power.sh
+fi
+chmod a+x ${install_dir}/install_power.sh
+
+# Copy example code
+mkdir -p ${install_dir}/examples
+examples_dir="${top_dir}/tests/examples"
+cp -r ${examples_dir}/c      ${install_dir}/examples
+sed -i '/passwd/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/c/*.c
+sed -i '/root/   {s/taosdata/powerdb/g}'  ${install_dir}/examples/c/*.c
+
+if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
+  cp -r ${examples_dir}/JDBC   ${install_dir}/examples
+  cp -r ${examples_dir}/matlab ${install_dir}/examples
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/matlab/TDengineDemo.m  
+  cp -r ${examples_dir}/python ${install_dir}/examples
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/python/read_example.py  
+  cp -r ${examples_dir}/R      ${install_dir}/examples
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/R/command.txt  
+  cp -r ${examples_dir}/go     ${install_dir}/examples  
+  sed -i '/root/ {s/taosdata/powerdb/g}'  ${install_dir}/examples/go/src/taosapp/taosapp.go
+fi
+# Copy driver
+mkdir -p ${install_dir}/driver 
+cp ${lib_files} ${install_dir}/driver
+
+# Copy connector
+connector_dir="${code_dir}/connector"
+mkdir -p ${install_dir}/connector
+if [[ "$pagMode" != "lite" ]] && [[ "$cpuType" != "aarch32" ]]; then
+  cp ${build_dir}/lib/*.jar      ${install_dir}/connector
+  cp -r ${connector_dir}/grafanaplugin ${install_dir}/connector/
+  cp -r ${connector_dir}/python  ${install_dir}/connector/
+  cp -r ${connector_dir}/go      ${install_dir}/connector
+  
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python2/taos/cinterface.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python3/taos/cinterface.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python2/taos/cinterface.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python3/taos/cinterface.py
+  
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python2/taos/subscription.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python3/taos/subscription.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python2/taos/subscription.py
+  sed -i '/password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python3/taos/subscription.py
+  
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python2/taos/connection.py
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/linux/python3/taos/connection.py
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python2/taos/connection.py
+  sed -i '/self._password/ {s/taosdata/powerdb/g}'  ${install_dir}/connector/python/windows/python3/taos/connection.py
+fi
+# Copy release note
+# cp ${script_dir}/release_note ${install_dir}
+
+# exit 1
+
+cd ${release_dir} 
+
+if [ "$verMode" == "cluster" ]; then
+  pkg_name=${install_dir}-${version}-${osType}-${cpuType}
+elif [ "$verMode" == "edge" ]; then
+  pkg_name=${install_dir}-${version}-${osType}-${cpuType}
+else
+  echo "unknow verMode, nor cluster or edge"
+  exit 1
+fi
+
+if [ "$pagMode" == "lite" ]; then
+  pkg_name=${pkg_name}-Lite
+fi
+
+if [ "$verType" == "beta" ]; then
+  pkg_name=${pkg_name}-${verType}
+elif [ "$verType" == "stable" ]; then 
+  pkg_name=${pkg_name} 
+else
+  echo "unknow verType, nor stabel or beta"
+  exit 1
+fi
+
+tar -zcv -f "$(basename ${pkg_name}).tar.gz" $(basename ${install_dir}) --remove-files || :
+exitcode=$?
+if [ "$exitcode" != "0" ]; then
+    echo "tar ${pkg_name}.tar.gz error !!!"
+    exit $exitcode
+fi
+
+cd ${curr_dir}
diff --git a/packaging/tools/remove_arbi_power.sh b/packaging/tools/remove_arbi_power.sh
new file mode 100644
index 0000000000..077b19ec7d
--- /dev/null
+++ b/packaging/tools/remove_arbi_power.sh
@@ -0,0 +1,130 @@
+#!/bin/bash
+#
+# Script to stop the service and uninstall PowerDB's arbitrator
+
+set -e
+#set -x
+
+verMode=edge
+
+RED='\033[0;31m'
+GREEN='\033[1;32m'
+NC='\033[0m'
+
+#install main path
+install_main_dir="/usr/local/tarbitrator"
+bin_link_dir="/usr/bin"
+#inc_link_dir="/usr/include"
+
+service_config_dir="/etc/systemd/system"
+tarbitrator_service_name="tarbitratord"
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
+initd_mod=0
+service_mod=2
+if pidof systemd &> /dev/null; then
+    service_mod=0
+elif $(which service &> /dev/null); then    
+    service_mod=1
+    service_config_dir="/etc/init.d" 
+    if $(which chkconfig &> /dev/null); then
+         initd_mod=1 
+    elif $(which insserv &> /dev/null); then
+        initd_mod=2
+    elif $(which update-rc.d &> /dev/null); then
+        initd_mod=3
+    else
+        service_mod=2
+    fi
+else 
+    service_mod=2
+fi
+
+function kill_tarbitrator() {
+  pid=$(ps -ef | grep "tarbitrator" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+function clean_bin() {
+    # Remove link
+    ${csudo} rm -f ${bin_link_dir}/tarbitrator      || :
+}
+
+function clean_header() {
+    # Remove link
+    ${csudo} rm -f ${inc_link_dir}/taos.h       || :
+    ${csudo} rm -f ${inc_link_dir}/taoserror.h  || :
+}
+
+function clean_log() {
+    # Remove link
+    ${csudo} rm -rf /arbitrator.log    || :
+}
+
+function clean_service_on_systemd() {
+  tarbitratord_service_config="${service_config_dir}/${tarbitrator_service_name}.service"
+
+  if systemctl is-active --quiet ${tarbitrator_service_name}; then
+      echo "PowerDB tarbitrator is running, stopping it..."
+      ${csudo} systemctl stop ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
+  fi
+  ${csudo} systemctl disable ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
+
+  ${csudo} rm -f ${tarbitratord_service_config}
+}
+
+function clean_service_on_sysvinit() {
+    if pidof tarbitrator &> /dev/null; then
+        echo "PowerDB's tarbitrator is running, stopping it..."
+        ${csudo} service tarbitratord stop || :
+    fi
+    
+    if ((${initd_mod}==1)); then    
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} chkconfig --del tarbitratord || :
+      fi
+    elif ((${initd_mod}==2)); then   
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} insserv -r tarbitratord || :
+      fi
+    elif ((${initd_mod}==3)); then  
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} update-rc.d -f tarbitratord remove || :
+      fi
+    fi
+
+    ${csudo} rm -f ${service_config_dir}/tarbitratord || :
+   
+    if $(which init &> /dev/null); then
+        ${csudo} init q || :
+    fi
+}
+
+function clean_service() {
+    if ((${service_mod}==0)); then
+        clean_service_on_systemd
+    elif ((${service_mod}==1)); then
+        clean_service_on_sysvinit
+    else
+        # must manual stop  
+        kill_tarbitrator
+    fi
+}
+
+# Stop service and disable booting start.
+clean_service
+# Remove binary file and links
+clean_bin
+# Remove header file.
+##clean_header
+# Remove log file
+clean_log
+
+${csudo} rm -rf ${install_main_dir}
+
+echo -e "${GREEN}PowerDB's arbitrator is removed successfully!${NC}"
+echo 
\ No newline at end of file
diff --git a/packaging/tools/remove_client_power.sh b/packaging/tools/remove_client_power.sh
new file mode 100644
index 0000000000..7a3c99e100
--- /dev/null
+++ b/packaging/tools/remove_client_power.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+#
+# Script to stop the client and uninstall database, but retain the config and log files.
+set -e
+# set -x
+
+RED='\033[0;31m'
+GREEN='\033[1;32m'
+NC='\033[0m'
+
+#install main path
+install_main_dir="/usr/local/power"
+
+log_link_dir="/usr/local/power/log"
+cfg_link_dir="/usr/local/power/cfg"
+bin_link_dir="/usr/bin"
+lib_link_dir="/usr/lib"
+lib64_link_dir="/usr/lib64"
+inc_link_dir="/usr/include"
+
+
+# v1.5 jar dir
+#v15_java_app_dir="/usr/local/lib/power"
+
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
+function kill_client() {
+  #pid=$(ps -ef | grep "power" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$(pidof power)" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+
+function clean_bin() {
+    # Remove link
+    ${csudo} rm -f ${bin_link_dir}/power      || :
+    ${csudo} rm -f ${bin_link_dir}/powerdemo  || :
+    ${csudo} rm -f ${bin_link_dir}/rmpower    || :
+    ${csudo} rm -f ${bin_link_dir}/set_core   || :
+}
+
+function clean_lib() {
+    # Remove link
+    ${csudo} rm -f ${lib_link_dir}/libtaos.*      || :
+    ${csudo} rm -f ${lib64_link_dir}/libtaos.*    || :
+    #${csudo} rm -rf ${v15_java_app_dir}           || :
+}
+
+function clean_header() {
+    # Remove link
+    ${csudo} rm -f ${inc_link_dir}/taos.h       || :
+    ${csudo} rm -f ${inc_link_dir}/taoserror.h       || :
+}
+
+function clean_config() {
+    # Remove link
+    ${csudo} rm -f ${cfg_link_dir}/*            || :    
+}
+
+function clean_log() {
+    # Remove link
+    ${csudo} rm -rf ${log_link_dir}    || :
+}
+
+# Stop client.
+kill_client
+# Remove binary file and links
+clean_bin
+# Remove header file.
+clean_header
+# Remove lib file
+clean_lib
+# Remove link log directory
+clean_log
+# Remove link configuration file
+clean_config
+
+${csudo} rm -rf ${install_main_dir}
+
+echo -e "${GREEN}PowerDB client is removed successfully!${NC}"
+echo 
diff --git a/packaging/tools/remove_power.sh b/packaging/tools/remove_power.sh
new file mode 100644
index 0000000000..d6d6c5dd7c
--- /dev/null
+++ b/packaging/tools/remove_power.sh
@@ -0,0 +1,226 @@
+#!/bin/bash
+#
+# Script to stop the service and uninstall TDengine, but retain the config, data and log files.
+
+set -e
+#set -x
+
+verMode=edge
+
+RED='\033[0;31m'
+GREEN='\033[1;32m'
+NC='\033[0m'
+
+#install main path
+install_main_dir="/usr/local/power"
+data_link_dir="/usr/local/power/data"
+log_link_dir="/usr/local/power/log"
+cfg_link_dir="/usr/local/power/cfg"
+bin_link_dir="/usr/bin"
+lib_link_dir="/usr/lib"
+lib64_link_dir="/usr/lib64"
+inc_link_dir="/usr/include"
+install_nginxd_dir="/usr/local/nginxd"
+
+# v1.5 jar dir
+#v15_java_app_dir="/usr/local/lib/power"
+
+service_config_dir="/etc/systemd/system"
+power_service_name="powerd"
+tarbitrator_service_name="tarbitratord"
+nginx_service_name="nginxd"
+csudo=""
+if command -v sudo > /dev/null; then
+    csudo="sudo"
+fi
+
+initd_mod=0
+service_mod=2
+if pidof systemd &> /dev/null; then
+    service_mod=0
+elif $(which service &> /dev/null); then    
+    service_mod=1
+    service_config_dir="/etc/init.d" 
+    if $(which chkconfig &> /dev/null); then
+         initd_mod=1 
+    elif $(which insserv &> /dev/null); then
+        initd_mod=2
+    elif $(which update-rc.d &> /dev/null); then
+        initd_mod=3
+    else
+        service_mod=2
+    fi
+else 
+    service_mod=2
+fi
+
+function kill_powerd() {
+  pid=$(ps -ef | grep "powerd" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+
+function kill_tarbitrator() {
+  pid=$(ps -ef | grep "tarbitrator" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+function clean_bin() {
+    # Remove link
+    ${csudo} rm -f ${bin_link_dir}/power        || :
+    ${csudo} rm -f ${bin_link_dir}/powerd       || :
+    ${csudo} rm -f ${bin_link_dir}/powerdemo    || :
+    ${csudo} rm -f ${bin_link_dir}/rmpower      || :
+    ${csudo} rm -f ${bin_link_dir}/tarbitrator  || :
+    ${csudo} rm -f ${bin_link_dir}/set_core     || :
+}
+
+function clean_lib() {
+    # Remove link
+    ${csudo} rm -f ${lib_link_dir}/libtaos.*      || :
+    ${csudo} rm -f ${lib64_link_dir}/libtaos.*    || :
+    #${csudo} rm -rf ${v15_java_app_dir}           || :
+}
+
+function clean_header() {
+    # Remove link
+    ${csudo} rm -f ${inc_link_dir}/taos.h       || :
+    ${csudo} rm -f ${inc_link_dir}/taoserror.h  || :
+}
+
+function clean_config() {
+    # Remove link
+    ${csudo} rm -f ${cfg_link_dir}/*            || :    
+}
+
+function clean_log() {
+    # Remove link
+    ${csudo} rm -rf ${log_link_dir}    || :
+}
+
+function clean_service_on_systemd() {
+    power_service_config="${service_config_dir}/${power_service_name}.service"
+    if systemctl is-active --quiet ${power_service_name}; then
+        echo "PowerDB powerd is running, stopping it..."
+        ${csudo} systemctl stop ${power_service_name} &> /dev/null || echo &> /dev/null
+    fi
+    ${csudo} systemctl disable ${power_service_name} &> /dev/null || echo &> /dev/null
+    ${csudo} rm -f ${power_service_config}
+    
+    tarbitratord_service_config="${service_config_dir}/${tarbitrator_service_name}.service"
+    if systemctl is-active --quiet ${tarbitrator_service_name}; then
+        echo "TDengine tarbitrator is running, stopping it..."
+        ${csudo} systemctl stop ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
+    fi
+    ${csudo} systemctl disable ${tarbitrator_service_name} &> /dev/null || echo &> /dev/null
+    ${csudo} rm -f ${tarbitratord_service_config}
+    
+    if [ "$verMode" == "cluster" ]; then
+		  nginx_service_config="${service_config_dir}/${nginx_service_name}.service"	
+   	 	if [ -d ${bin_dir}/web ]; then
+   	    if systemctl is-active --quiet ${nginx_service_name}; then
+   	        echo "Nginx for TDengine is running, stopping it..."
+   	        ${csudo} systemctl stop ${nginx_service_name} &> /dev/null || echo &> /dev/null
+   	    fi
+   	    ${csudo} systemctl disable ${nginx_service_name} &> /dev/null || echo &> /dev/null
+      
+   	    ${csudo} rm -f ${nginx_service_config}
+   	  fi
+    fi 
+}
+
+function clean_service_on_sysvinit() {
+    #restart_config_str="power:2345:respawn:${service_config_dir}/powerd start"
+    #${csudo} sed -i "\|${restart_config_str}|d" /etc/inittab || :    
+    
+    if pidof powerd &> /dev/null; then
+        echo "PowerDB powerd is running, stopping it..."
+        ${csudo} service powerd stop || :
+    fi
+    
+    if pidof tarbitrator &> /dev/null; then
+        echo "PowerDB tarbitrator is running, stopping it..."
+        ${csudo} service tarbitratord stop || :
+    fi
+    
+    if ((${initd_mod}==1)); then    
+      if [ -e ${service_config_dir}/powerd ]; then 
+        ${csudo} chkconfig --del powerd || :
+      fi
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} chkconfig --del tarbitratord || :
+      fi
+    elif ((${initd_mod}==2)); then   
+      if [ -e ${service_config_dir}/powerd ]; then 
+        ${csudo} insserv -r powerd || :
+      fi
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} insserv -r tarbitratord || :
+      fi
+    elif ((${initd_mod}==3)); then  
+      if [ -e ${service_config_dir}/powerd ]; then 
+        ${csudo} update-rc.d -f powerd remove || :
+      fi
+      if [ -e ${service_config_dir}/tarbitratord ]; then 
+        ${csudo} update-rc.d -f tarbitratord remove || :
+      fi
+    fi
+    
+    ${csudo} rm -f ${service_config_dir}/powerd || :
+    ${csudo} rm -f ${service_config_dir}/tarbitratord || :
+   
+    if $(which init &> /dev/null); then
+        ${csudo} init q || :
+    fi
+}
+
+function clean_service() {
+    if ((${service_mod}==0)); then
+        clean_service_on_systemd
+    elif ((${service_mod}==1)); then
+        clean_service_on_sysvinit
+    else
+        # must manual stop taosd
+        kill_powerd
+        kill_tarbitrator
+    fi
+}
+
+# Stop service and disable booting start.
+clean_service
+# Remove binary file and links
+clean_bin
+# Remove header file.
+clean_header
+# Remove lib file
+clean_lib
+# Remove link log directory
+clean_log
+# Remove link configuration file
+clean_config
+# Remove data link directory
+${csudo} rm -rf ${data_link_dir}    || : 
+
+${csudo} rm -rf ${install_main_dir}
+${csudo} rm -rf ${install_nginxd_dir}
+if [[ -e /etc/os-release ]]; then
+  osinfo=$(awk -F= '/^NAME/{print $2}' /etc/os-release)
+else
+  osinfo=""
+fi
+
+#if echo $osinfo | grep -qwi "ubuntu" ; then
+##  echo "this is ubuntu system"
+#   ${csudo} rm -f /var/lib/dpkg/info/tdengine* || :
+#elif echo $osinfo | grep -qwi "debian" ; then
+##  echo "this is debian system"
+#   ${csudo} rm -f /var/lib/dpkg/info/tdengine* || :
+#elif  echo $osinfo | grep -qwi "centos" ; then
+##  echo "this is centos system"
+#  ${csudo} rpm -e --noscripts tdengine || :
+#fi
+
+echo -e "${GREEN}PowerDB is removed successfully!${NC}"
+echo 
\ No newline at end of file

From fb19257a9970f3a2671180edfa6f9a5c6f6d0048 Mon Sep 17 00:00:00 2001
From: Bomin Zhang <bmzhang@taosdata.com>
Date: Thu, 27 Aug 2020 17:01:26 +0800
Subject: [PATCH 07/69] td-1099: parse natual month/year

---
 src/client/inc/tsclient.h     |  3 +-
 src/client/src/tscSQLParser.c | 60 +++++++++++++++++++----------------
 src/os/inc/osTime.h           |  1 +
 src/os/src/detail/osTime.c    | 19 +++++++++++
 4 files changed, 55 insertions(+), 28 deletions(-)

diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index d2c52e972a..d0141835a3 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -229,8 +229,9 @@ typedef struct STableDataBlocks {
 
 typedef struct SQueryInfo {
   int16_t          command;       // the command may be different for each subclause, so keep it seperately.
-  uint32_t         type;          // query/insert type
+  char             intervalTimeUnit;
   char             slidingTimeUnit;
+  uint32_t         type;          // query/insert type
   STimeWindow      window;        // query time window
   int64_t          intervalTime;  // aggregation time interval
   int64_t          slidingTime;   // sliding window in mseconds
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 5ce4c7125f..1fb8594588 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -586,22 +586,21 @@ int32_t parseIntervalClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQ
   }
 
   // interval is not null
-  SStrToken* t = &pQuerySql->interval;
-  if (getTimestampInUsFromStr(t->z, t->n, &pQueryInfo->intervalTime) != TSDB_CODE_SUCCESS) {
+  SSQLToken* t = &pQuerySql->interval;
+  if (parseDuration(t->z, t->n, &pQueryInfo->intervalTime, &pQueryInfo->intervalTimeUnit) != TSDB_CODE_SUCCESS) {
     return TSDB_CODE_TSC_INVALID_SQL;
   }
 
-  // if the unit of time window value is millisecond, change the value from microsecond
-  if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
-    pQueryInfo->intervalTime = pQueryInfo->intervalTime / 1000;
-  }
+  if (pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y') {
+    // if the unit of time window value is millisecond, change the value from microsecond
+    if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
+      pQueryInfo->intervalTime = pQueryInfo->intervalTime / 1000;
+    }
 
-  /* parser has filter the illegal type, no need to check here */
-  pQueryInfo->slidingTimeUnit = pQuerySql->interval.z[pQuerySql->interval.n - 1];
-
-  // interval cannot be less than 10 milliseconds
-  if (pQueryInfo->intervalTime < tsMinIntervalTime) {
-    return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
+    // interval cannot be less than 10 milliseconds
+    if (pQueryInfo->intervalTime < tsMinIntervalTime) {
+      return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg2);
+    }
   }
 
   // for top/bottom + interval query, we do not add additional timestamp column in the front
@@ -666,28 +665,35 @@ int32_t parseSlidingClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQu
   const char* msg0 = "sliding value too small";
   const char* msg1 = "sliding value no larger than the interval value";
   const char* msg2 = "sliding value can not less than 1% of interval value";
+  const char* msg3 = "does not support sliding when interval is natual month/year";
 
   const static int32_t INTERVAL_SLIDING_FACTOR = 100;
 
   STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, 0);
   STableComInfo tinfo = tscGetTableInfo(pTableMetaInfo->pTableMeta);
 
-  SStrToken* pSliding = &pQuerySql->sliding;
-  if (pSliding->n != 0) {
-    getTimestampInUsFromStr(pSliding->z, pSliding->n, &pQueryInfo->slidingTime);
-    if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
-      pQueryInfo->slidingTime /= 1000;
-    }
-
-    if (pQueryInfo->slidingTime < tsMinSlidingTime) {
-      return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg0);
-    }
-
-    if (pQueryInfo->slidingTime > pQueryInfo->intervalTime) {
-      return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
-    }
-  } else {
+  SSQLToken* pSliding = &pQuerySql->sliding;
+  if (pSliding->n == 0) {
+    pQueryInfo->slidingTimeUnit = pQueryInfo->intervalTimeUnit;
     pQueryInfo->slidingTime = pQueryInfo->intervalTime;
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (pQueryInfo->intervalTimeUnit == 'n' || pQueryInfo->intervalTimeUnit == 'y') {
+    return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
+  }
+
+  getTimestampInUsFromStr(pSliding->z, pSliding->n, &pQueryInfo->slidingTime);
+  if (tinfo.precision == TSDB_TIME_PRECISION_MILLI) {
+    pQueryInfo->slidingTime /= 1000;
+  }
+
+  if (pQueryInfo->slidingTime < tsMinSlidingTime) {
+    return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg0);
+  }
+
+  if (pQueryInfo->slidingTime > pQueryInfo->intervalTime) {
+    return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
   }
 
   if ((pQueryInfo->intervalTime != 0) && (pQueryInfo->intervalTime/pQueryInfo->slidingTime > INTERVAL_SLIDING_FACTOR)) {
diff --git a/src/os/inc/osTime.h b/src/os/inc/osTime.h
index cd2553f753..97432ca241 100644
--- a/src/os/inc/osTime.h
+++ b/src/os/inc/osTime.h
@@ -64,6 +64,7 @@ static FORCE_INLINE int64_t taosGetTimestamp(int32_t precision) {
 }
 
 int32_t getTimestampInUsFromStr(char* token, int32_t tokenlen, int64_t* ts);
+int32_t parseDuration(const char* token, int32_t tokenLen, int64_t* duration, char* unit);
 
 int32_t taosParseTime(char* timestr, int64_t* time, int32_t len, int32_t timePrec, int8_t dayligth);
 void deltaToUtcInitOnce();
diff --git a/src/os/src/detail/osTime.c b/src/os/src/detail/osTime.c
index 57634e468a..9d8328a71b 100644
--- a/src/os/src/detail/osTime.c
+++ b/src/os/src/detail/osTime.c
@@ -319,6 +319,8 @@ int32_t parseLocaltimeWithDst(char* timestr, int64_t* time, int32_t timePrec) {
   *time = factor * seconds + fraction;
   return 0;
 }
+
+
 static int32_t getTimestampInUsFromStrImpl(int64_t val, char unit, int64_t* result) {
   *result = val;
 
@@ -384,6 +386,23 @@ int32_t getTimestampInUsFromStr(char* token, int32_t tokenlen, int64_t* ts) {
   return getTimestampInUsFromStrImpl(timestamp, token[tokenlen - 1], ts);
 }
 
+int32_t parseDuration(const char* token, int32_t tokenLen, int64_t* duration, char* unit) {
+  errno = 0;
+
+  /* get the basic numeric value */
+  *duration = strtoll(token, NULL, 10);
+  if (errno != 0) {
+    return -1;
+  }
+
+  *unit = token[tokenLen - 1];
+  if (*unit == 'n' || *unit == 'y') {
+    return 0;
+  }
+
+  return getTimestampInUsFromStrImpl(*duration, *unit, duration);
+}
+
 // internal function, when program is paused in debugger,
 // one can call this function from debugger to print a
 // timestamp as human readable string, for example (gdb):

From b3840db93ed889e12c961432af3f77399f1d8a6e Mon Sep 17 00:00:00 2001
From: Bomin Zhang <bmzhang@taosdata.com>
Date: Sat, 29 Aug 2020 13:57:28 +0800
Subject: [PATCH 08/69] td-1099: natual month/year processing

---
 src/client/inc/tscUtil.h      |   2 +
 src/client/src/tscSQLParser.c |   6 +-
 src/client/src/tscServer.c    |   1 +
 src/client/src/tscSubquery.c  |   4 +
 src/client/src/tscUtil.c      |   1 +
 src/common/src/tname.c        |  69 ++++++++++++-----
 src/inc/taosmsg.h             |   1 +
 src/query/inc/qExecutor.h     |   3 +-
 src/query/src/qExecutor.c     | 135 +++++++++++++++++++++++++++-------
 9 files changed, 173 insertions(+), 49 deletions(-)

diff --git a/src/client/inc/tscUtil.h b/src/client/inc/tscUtil.h
index f77897a74b..46a576fa9a 100644
--- a/src/client/inc/tscUtil.h
+++ b/src/client/inc/tscUtil.h
@@ -70,6 +70,8 @@ typedef struct SJoinSupporter {
   SSubqueryState* pState;
   SSqlObj*        pObj;           // parent SqlObj
   int32_t         subqueryIndex;  // index of sub query
+  char            intervalTimeUnit;
+  char            slidingTimeUnit;
   int64_t         intervalTime;   // interval time
   int64_t         slidingTime;    // sliding time
   SLimitVal       limit;          // limit info
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 1fb8594588..3e99b644bd 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -4681,7 +4681,9 @@ int32_t validateSqlFunctionInStreamSql(SSqlCmd* pCmd, SQueryInfo* pQueryInfo) {
   const char* msg0 = "sample interval can not be less than 10ms.";
   const char* msg1 = "functions not allowed in select clause";
 
-  if (pQueryInfo->intervalTime != 0 && pQueryInfo->intervalTime < 10) {
+  if (pQueryInfo->intervalTime != 0 && pQueryInfo->intervalTime < 10 &&
+     pQueryInfo->intervalTimeUnit != 'n' &&
+     pQueryInfo->intervalTimeUnit != 'y') {
     return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg0);
   }
   
@@ -6167,7 +6169,7 @@ int32_t doCheckForQuery(SSqlObj* pSql, SQuerySQL* pQuerySql, int32_t index) {
       return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg5);
     }
 
-    if (pQueryInfo->intervalTime > 0) {
+    if (pQueryInfo->intervalTime > 0 && pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y') {
       int64_t timeRange = ABS(pQueryInfo->window.skey - pQueryInfo->window.ekey);
       // number of result is not greater than 10,000,000
       if ((timeRange == 0) || (timeRange / pQueryInfo->intervalTime) > MAX_INTERVAL_TIME_WINDOW) {
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index ecb85472fc..b36767dbb4 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -673,6 +673,7 @@ int tscBuildQueryMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
   pQueryMsg->numOfCols      = htons((int16_t)taosArrayGetSize(pQueryInfo->colList));
   pQueryMsg->intervalTime   = htobe64(pQueryInfo->intervalTime);
   pQueryMsg->slidingTime    = htobe64(pQueryInfo->slidingTime);
+  pQueryMsg->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
   pQueryMsg->slidingTimeUnit = pQueryInfo->slidingTimeUnit;
   pQueryMsg->numOfGroupCols = htons(pQueryInfo->groupbyExpr.numOfGroupCols);
   pQueryMsg->numOfTags      = htonl(numOfTags);
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 2fb264c756..7a626bfe5c 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -178,6 +178,8 @@ SJoinSupporter* tscCreateJoinSupporter(SSqlObj* pSql, SSubqueryState* pState, in
   pSupporter->subqueryIndex = index;
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, pSql->cmd.clauseIndex);
   
+  pSupporter->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
+  pSupporter->slidingTime = pQueryInfo->slidingTimeUnit;
   pSupporter->intervalTime = pQueryInfo->intervalTime;
   pSupporter->slidingTime = pQueryInfo->slidingTime;
   pSupporter->limit = pQueryInfo->limit;
@@ -309,6 +311,8 @@ static int32_t tscLaunchRealSubqueries(SSqlObj* pSql) {
     // set the second stage sub query for join process
     TSDB_QUERY_SET_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_JOIN_SEC_STAGE);
 
+    pQueryInfo->intervalTimeUnit = pSupporter->intervalTimeUnit;
+    pQueryInfo->slidingTimeUnit = pSupporter->slidingTimeUnit;
     pQueryInfo->intervalTime = pSupporter->intervalTime;
     pQueryInfo->slidingTime = pSupporter->slidingTime;
     pQueryInfo->groupbyExpr = pSupporter->groupbyExpr;
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index b61fd7e8c9..49f7c91397 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -1830,6 +1830,7 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, void (*fp)(), void
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
 
   pNewQueryInfo->command = pQueryInfo->command;
+  pNewQueryInfo->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
   pNewQueryInfo->slidingTimeUnit = pQueryInfo->slidingTimeUnit;
   pNewQueryInfo->intervalTime = pQueryInfo->intervalTime;
   pNewQueryInfo->slidingTime  = pQueryInfo->slidingTime;
diff --git a/src/common/src/tname.c b/src/common/src/tname.c
index 01945dbb00..0c89d26bed 100644
--- a/src/common/src/tname.c
+++ b/src/common/src/tname.c
@@ -104,29 +104,60 @@ int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, in
   if (slidingTime == 0) {
     return startTime;
   }
+  int64_t start = startTime;
+  if (timeUnit == 'n' || timeUnit == 'y') {
+    start /= 1000;
+    if (precision == TSDB_TIME_PRECISION_MICRO) {
+      start /= 1000;
+    }
+    struct tm tm;
+    time_t t = (time_t)start;
+    localtime_r(&t, &tm);
+    tm.tm_sec = 0;
+    tm.tm_min = 0;
+    tm.tm_hour = 0;
+    tm.tm_mday = 1;
 
-  int64_t start = ((startTime - intervalTime) / slidingTime + 1) * slidingTime;
-  if (!(timeUnit == 'u' || timeUnit == 'a' || timeUnit == 'm' || timeUnit == 's' || timeUnit == 'h')) {
-    /*
-     * here we revised the start time of day according to the local time zone,
-     * but in case of DST, the start time of one day need to be dynamically decided.
-     */
-    // todo refactor to extract function that is available for Linux/Windows/Mac platform
-#if defined(WINDOWS) && _MSC_VER >= 1900
-    // see https://docs.microsoft.com/en-us/cpp/c-runtime-library/daylight-dstbias-timezone-and-tzname?view=vs-2019
-    int64_t timezone = _timezone;
-    int32_t daylight = _daylight;
-    char**  tzname = _tzname;
-#endif
+    if (timeUnit == 'y') {
+      tm.tm_mon = 0;
+      tm.tm_year = tm.tm_year / slidingTime * slidingTime;
+    } else {
+      int mon = tm.tm_year * 12 + tm.tm_mon;
+      mon = mon / slidingTime * slidingTime;
+      tm.tm_year = mon / 12;
+      tm.tm_mon = mon % 12;
+    }
 
-    int64_t t = (precision == TSDB_TIME_PRECISION_MILLI) ? MILLISECOND_PER_SECOND : MILLISECOND_PER_SECOND * 1000L;
-    start += timezone * t;
+    start = mktime(&tm) * 1000L;
+    if (precision == TSDB_TIME_PRECISION_MICRO) {
+      start *= 1000L;
+    }
+  } else {
+    start = ((start - intervalTime) / slidingTime + 1) * slidingTime;
+
+    if (timeUnit == 'd' || timeUnit == 'w') {
+      /*
+      * here we revised the start time of day according to the local time zone,
+      * but in case of DST, the start time of one day need to be dynamically decided.
+      */
+      // todo refactor to extract function that is available for Linux/Windows/Mac platform
+  #if defined(WINDOWS) && _MSC_VER >= 1900
+      // see https://docs.microsoft.com/en-us/cpp/c-runtime-library/daylight-dstbias-timezone-and-tzname?view=vs-2019
+      int64_t timezone = _timezone;
+      int32_t daylight = _daylight;
+      char**  tzname = _tzname;
+  #endif
+
+      int64_t t = (precision == TSDB_TIME_PRECISION_MILLI) ? MILLISECOND_PER_SECOND : MILLISECOND_PER_SECOND * 1000L;
+      start += timezone * t;
+    }
+
+    int64_t end = start + intervalTime - 1;
+    if (end < startTime) {
+      start += slidingTime;
+    }
   }
 
-  int64_t end = start + intervalTime - 1;
-  if (end < startTime) {
-    start += slidingTime;
-  }
   return start;
 }
 
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index 761a267ce5..0fe63a740e 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -456,6 +456,7 @@ typedef struct {
   int64_t     intervalTime;     // time interval for aggregation, in million second
   int64_t     intervalOffset;   // start offset for interval query
   int64_t     slidingTime;      // value for sliding window
+  char        intervalTimeUnit;
   char        slidingTimeUnit;  // time interval type, for revisement of interval(1d)
   uint16_t    tagCondLen;       // tag length in current query
   int16_t     numOfGroupCols;   // num of group by columns
diff --git a/src/query/inc/qExecutor.h b/src/query/inc/qExecutor.h
index 7093495763..25fb04fb9a 100644
--- a/src/query/inc/qExecutor.h
+++ b/src/query/inc/qExecutor.h
@@ -132,11 +132,12 @@ typedef struct SQueryCostInfo {
 typedef struct SQuery {
   int16_t          numOfCols;
   int16_t          numOfTags;
+  char             intervalTimeUnit;
+  char             slidingTimeUnit;  // interval data type, used for daytime revise
   SOrderVal        order;
   STimeWindow      window;
   int64_t          intervalTime;
   int64_t          slidingTime;      // sliding time for sliding window query
-  char             slidingTimeUnit;  // interval data type, used for daytime revise
   int16_t          precision;
   int16_t          numOfOutput;
   int16_t          fillType;
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 4e2e31d269..6c4046d776 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -137,13 +137,75 @@ static void finalizeQueryResult(SQueryRuntimeEnv *pRuntimeEnv);
 
 #define QUERY_IS_INTERVAL_QUERY(_q) ((_q)->intervalTime > 0)
 
-// previous time window may not be of the same size of pQuery->intervalTime
-#define GET_NEXT_TIMEWINDOW(_q, tw)                                   \
-  do {                                                                \
-    int32_t factor = GET_FORWARD_DIRECTION_FACTOR((_q)->order.order); \
-    (tw)->skey += ((_q)->slidingTime * factor);                       \
-    (tw)->ekey = (tw)->skey + ((_q)->intervalTime - 1);               \
-  } while (0)
+static int64_t addNatualInterval(int64_t key, int64_t intervalTime, char intervalTimeUnit, int precision) {
+  key /= 1000;
+  if (precision == TSDB_TIME_PRECISION_MICRO) {
+    key /= 1000;
+  }
+
+  struct tm tm;
+  time_t t = (time_t)key;
+  localtime_r(&t, &tm);
+
+  if (intervalTimeUnit == 'y') {
+    intervalTime *= 12;
+  }
+
+  int mon = tm.tm_year * 12 + tm.tm_mon + intervalTime;
+  tm.tm_year = mon / 12;
+  tm.tm_mon = mon % 12;
+
+  key = mktime(&tm) * 1000L;
+
+  if (precision == TSDB_TIME_PRECISION_MICRO) {
+    key *= 1000L;
+  }
+
+  return key;
+}
+
+static void getNextTimeWindow(SQuery* pQuery, STimeWindow* tw) {
+  int32_t factor = GET_FORWARD_DIRECTION_FACTOR(pQuery->order.order);
+  if (pQuery->intervalTimeUnit != 'n' && pQuery->intervalTimeUnit != 'y') {
+    tw->skey += pQuery->slidingTime * factor;
+    tw->ekey = tw->skey + pQuery->intervalTime - 1;
+    return;
+  }
+
+  int64_t key = tw->skey;
+  key /= 1000;
+  if (pQuery->precision == TSDB_TIME_PRECISION_MICRO) {
+    key /= 1000;
+  }
+
+  struct tm tm;
+  time_t t = (time_t)key;
+  localtime_r(&t, &tm);
+
+  if (pQuery->intervalTimeUnit == 'y') {
+    factor *= 12;
+  }
+
+  int mon = tm.tm_year * 12 + tm.tm_mon;
+  mon += pQuery->intervalTime * factor;
+  tm.tm_year = mon / 12;
+  tm.tm_mon = mon % 12;
+
+  tw->skey = mktime(&tm) * 1000L;
+
+  mon += pQuery->intervalTime * factor;
+  tm.tm_year = mon / 12;
+  tm.tm_mon = mon % 12;
+  tw->ekey = mktime(&tm) * 1000L;
+
+  if (pQuery->precision == TSDB_TIME_PRECISION_MICRO) {
+    tw->skey *= 1000L;
+    tw->ekey *= 1000L;
+  }
+  tw->ekey -= 1;
+}
+
+#define GET_NEXT_TIMEWINDOW(_q, tw) getNextTimeWindow((_q), (tw))
 
 #define SET_STABLE_QUERY_OVER(_q) ((_q)->tableIndex = (int32_t)((_q)->tableqinfoGroupInfo.numOfTables))
 #define IS_STASBLE_QUERY_OVER(_q) ((_q)->tableIndex >= (int32_t)((_q)->tableqinfoGroupInfo.numOfTables))
@@ -467,9 +529,13 @@ static SWindowResult *doSetTimeWindowFromKey(SQueryRuntimeEnv *pRuntimeEnv, SWin
 static STimeWindow getActiveTimeWindow(SWindowResInfo *pWindowResInfo, int64_t ts, SQuery *pQuery) {
   STimeWindow w = {0};
 
-  if (pWindowResInfo->curIndex == -1) {  // the first window, from the previous stored value
+ if (pWindowResInfo->curIndex == -1) {  // the first window, from the previous stored value
     w.skey = pWindowResInfo->prevSKey;
-    w.ekey = w.skey + pQuery->intervalTime - 1;
+    if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
+      w.ekey = addNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+    } else {
+      w.ekey = w.skey + pQuery->intervalTime - 1;
+    }
   } else {
     int32_t slot = curTimeWindowIndex(pWindowResInfo);
     SWindowResult* pWindowRes = getWindowResult(pWindowResInfo, slot);
@@ -477,19 +543,24 @@ static STimeWindow getActiveTimeWindow(SWindowResInfo *pWindowResInfo, int64_t t
   }
 
   if (w.skey > ts || w.ekey < ts) {
-    int64_t st = w.skey;
+    if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
+      w.skey = taosGetIntervalStartTimestamp(ts, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
+      w.ekey = addNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+    } else {
+      int64_t st = w.skey;
 
-    if (st > ts) {
-      st -= ((st - ts + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
+      if (st > ts) {
+        st -= ((st - ts + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
+      }
+
+      int64_t et = st + pQuery->intervalTime - 1;
+      if (et < ts) {
+        st += ((ts - et + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
+      }
+
+      w.skey = st;
+      w.ekey = w.skey + pQuery->intervalTime - 1;
     }
-
-    int64_t et = st + pQuery->intervalTime - 1;
-    if (et < ts) {
-      st += ((ts - et + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
-    }
-
-    w.skey = st;
-    w.ekey = w.skey + pQuery->intervalTime - 1;
   }
 
   /*
@@ -814,14 +885,22 @@ static int32_t getNextQualifiedWindow(SQueryRuntimeEnv *pRuntimeEnv, STimeWindow
    */
   if (QUERY_IS_ASC_QUERY(pQuery) && primaryKeys[startPos] > pNext->ekey) {
     TSKEY next = primaryKeys[startPos];
-
-    pNext->ekey += ((next - pNext->ekey + pQuery->slidingTime - 1)/pQuery->slidingTime) * pQuery->slidingTime;
-    pNext->skey = pNext->ekey - pQuery->intervalTime + 1;
+    if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
+      pNext->skey = taosGetIntervalStartTimestamp(next, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
+      pNext->ekey = addNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+    } else {
+      pNext->ekey += ((next - pNext->ekey + pQuery->slidingTime - 1)/pQuery->slidingTime) * pQuery->slidingTime;
+      pNext->skey = pNext->ekey - pQuery->intervalTime + 1;
+    }
   } else if ((!QUERY_IS_ASC_QUERY(pQuery)) && primaryKeys[startPos] < pNext->skey) {
     TSKEY next = primaryKeys[startPos];
-
-    pNext->skey -= ((pNext->skey - next + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
-    pNext->ekey = pNext->skey + pQuery->intervalTime - 1;
+    if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
+      pNext->skey = taosGetIntervalStartTimestamp(next, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
+      pNext->ekey = addNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+    } else {
+      pNext->skey -= ((pNext->skey - next + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
+      pNext->ekey = pNext->skey + pQuery->intervalTime - 1;
+    }
   }
 
   return startPos;
@@ -1804,7 +1883,8 @@ void getAlignQueryTimeWindow(SQuery *pQuery, int64_t key, int64_t keyFirst, int6
   if (keyFirst > (INT64_MAX - pQuery->intervalTime)) {
     assert(keyLast - keyFirst < pQuery->intervalTime);
     win->ekey = INT64_MAX;
-    return;
+  } else if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
+    win->ekey = addNatualInterval(win->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
   } else {
     win->ekey = win->skey + pQuery->intervalTime - 1;
   }
@@ -6016,6 +6096,7 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList,
   pQuery->pGroupbyExpr    = pGroupbyExpr;
   pQuery->intervalTime    = pQueryMsg->intervalTime;
   pQuery->slidingTime     = pQueryMsg->slidingTime;
+  pQuery->intervalTimeUnit = pQueryMsg->intervalTimeUnit;
   pQuery->slidingTimeUnit = pQueryMsg->slidingTimeUnit;
   pQuery->fillType        = pQueryMsg->fillType;
   pQuery->numOfTags       = pQueryMsg->numOfTags;

From 2aa54b4ec756656eec226a85530ab9534429ffea Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Sat, 29 Aug 2020 16:04:41 +0800
Subject: [PATCH 09/69] [TD-1228]

---
 CMakeLists.txt   | 2 +-
 cmake/define.inc | 4 ++--
 cmake/input.inc  | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e2d11962c..5fee2e548a 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,7 +19,7 @@ SET(TD_MEM_CHECK FALSE)
 
 SET(TD_PAGMODE_LITE FALSE)
 SET(TD_SOMODE_STATIC FALSE)
-SET(TD_OEM_POWER FALSE)
+SET(TD_POWER FALSE)
 SET(TD_GODLL FALSE)
 
 SET(TD_COMMUNITY_DIR ${PROJECT_SOURCE_DIR})
diff --git a/cmake/define.inc b/cmake/define.inc
index 166a451487..0a25dd9ee7 100755
--- a/cmake/define.inc
+++ b/cmake/define.inc
@@ -17,8 +17,8 @@ IF (TD_GODLL)
   ADD_DEFINITIONS(-D_TD_GO_DLL_)
 ENDIF ()
 
-IF (TD_OEM_POWER)
-  ADD_DEFINITIONS(-D_TD_OEM_POWER_)
+IF (TD_POWER)
+  ADD_DEFINITIONS(-D_TD_POWER_)
 ENDIF ()
 
 IF (TD_MEM_CHECK)
diff --git a/cmake/input.inc b/cmake/input.inc
index 2ecb2a85c7..f90b10a087 100755
--- a/cmake/input.inc
+++ b/cmake/input.inc
@@ -28,8 +28,8 @@ IF (${SOMODE} MATCHES "static")
 ENDIF ()
 
 IF (${DBNAME} MATCHES "power")
-  SET(TD_OEM_POWER TRUE)
-  MESSAGE(STATUS "OEM power is true")
+  SET(TD_POWER TRUE)
+  MESSAGE(STATUS "power is true")
 ENDIF ()
 
 IF (${DLLTYPE} MATCHES "go")

From 790c28f2059f078bb70cf7977f05ead1b63a42db Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Sat, 29 Aug 2020 16:07:53 +0800
Subject: [PATCH 10/69] [TD-1228]

---
 src/inc/taosdef.h               |  2 +-
 src/kit/shell/src/shellEngine.c |  2 +-
 src/kit/taosdemo/taosdemo.c     | 10 +++++-----
 src/os/src/linux/linuxEnv.c     |  2 +-
 src/util/src/tconfig.c          |  2 +-
 src/util/src/tlog.c             |  2 +-
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 4c8b448292..cd25ddcc55 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -85,7 +85,7 @@ extern const int32_t TYPE_BYTES[11];
 #define TSDB_DATA_NULL_STR_L            "null"
 
 #define TSDB_DEFAULT_USER               "root"
-#ifdef _TD_OEM_POWER_
+#ifdef _TD_POWER_
 #define TSDB_DEFAULT_PASS               "powerdb"
 #else
 #define TSDB_DEFAULT_PASS               "taosdata"
diff --git a/src/kit/shell/src/shellEngine.c b/src/kit/shell/src/shellEngine.c
index 18f4feb013..c8df17d6ae 100644
--- a/src/kit/shell/src/shellEngine.c
+++ b/src/kit/shell/src/shellEngine.c
@@ -30,7 +30,7 @@
 #include <regex.h>
 
 /**************** Global variables ****************/
-#ifdef _TD_OEM_POWER_
+#ifdef _TD_POWER_
 char      CLIENT_VERSION[] = "Welcome to the PowerDB shell from %s, Client Version:%s\n"
                              "Copyright (c) 2017 by PowerDB, Inc. All rights reserved.\n\n";
 char      PROMPT_HEADER[] = "power> ";
diff --git a/src/kit/taosdemo/taosdemo.c b/src/kit/taosdemo/taosdemo.c
index 99fa92adb3..699e96428e 100644
--- a/src/kit/taosdemo/taosdemo.c
+++ b/src/kit/taosdemo/taosdemo.c
@@ -89,7 +89,7 @@ typedef struct DemoArguments {
     {0, 'h', "host",                     0, "The host to connect to TDengine. Default is localhost.",                                                           0},
     {0, 'p', "port",                     0, "The TCP/IP port number to use for the connection. Default is 0.",                                                  1},
     {0, 'u', "user",                     0, "The TDengine user name to use when connecting to the server. Default is 'root'.",                                  2},
-    #ifdef _TD_OEM_POWER_    
+    #ifdef _TD_POWER_    
     {0, 'P', "password",                 0, "The password to use when connecting to the server. Default is 'powerdb'.",                                         3},
     #else
     {0, 'P', "password",                 0, "The password to use when connecting to the server. Default is 'taosdata'.",                                        3},
@@ -108,7 +108,7 @@ typedef struct DemoArguments {
     {0, 'r', "num_of_records_per_req",   0, "The number of records per request. Default is 1000.",                                                              10},
     {0, 't', "num_of_tables",            0, "The number of tables. Default is 10000.",                                                                          11},
     {0, 'n', "num_of_records_per_table", 0, "The number of records per table. Default is 100000.",                                                              12},
-    #ifdef _TD_OEM_POWER_
+    #ifdef _TD_POWER_
     {0, 'c', "config_directory",         0, "Configuration directory. Default is '/etc/power/'.",                                                               14},
     #else
     {0, 'c', "config_directory",         0, "Configuration directory. Default is '/etc/taos/'.",                                                                14},
@@ -287,7 +287,7 @@ typedef struct DemoArguments {
     printf("%s%s\n", indent, "-u");
     printf("%s%s%s\n", indent, indent, "user, The user name to use when connecting to the server. Default is 'root'.");
     printf("%s%s\n", indent, "-p");
-    #ifdef _TD_OEM_POWER_    
+    #ifdef _TD_POWER_    
     printf("%s%s%s\n", indent, indent, "password, The password to use when connecting to the server. Default is 'powerdb'.");
     #else
     printf("%s%s%s\n", indent, indent, "password, The password to use when connecting to the server. Default is 'taosdata'.");
@@ -321,7 +321,7 @@ typedef struct DemoArguments {
     printf("%s%s\n", indent, "-n");
     printf("%s%s%s\n", indent, indent, "num_of_records_per_table, The number of records per table. Default is 100000.");
     printf("%s%s\n", indent, "-c");
-    #ifdef _TD_OEM_POWER_
+    #ifdef _TD_POWER_
     printf("%s%s%s\n", indent, indent, "config_directory, Configuration directory. Default is '/etc/power/'.");
     #else
     printf("%s%s%s\n", indent, indent, "config_directory, Configuration directory. Default is '/etc/taos/'.");
@@ -529,7 +529,7 @@ int main(int argc, char *argv[]) {
   SDemoArguments arguments = {  NULL,            // host
                                 0,               // port
                                 "root",          // user
-                                #ifdef _TD_OEM_POWER_ 
+                                #ifdef _TD_POWER_ 
                                 "powerdb",      // password
                                 #else
                                 "taosdata",      // password
diff --git a/src/os/src/linux/linuxEnv.c b/src/os/src/linux/linuxEnv.c
index 6946017e99..14b40a1f18 100644
--- a/src/os/src/linux/linuxEnv.c
+++ b/src/os/src/linux/linuxEnv.c
@@ -19,7 +19,7 @@
 
 void osInit() {
 
-#ifdef _TD_OEM_POWER_
+#ifdef _TD_POWER_
   if (configDir[0] == 0) {
     strcpy(configDir, "/etc/power");
   }
diff --git a/src/util/src/tconfig.c b/src/util/src/tconfig.c
index a976369287..875c597008 100644
--- a/src/util/src/tconfig.c
+++ b/src/util/src/tconfig.c
@@ -260,7 +260,7 @@ void taosReadGlobalLogCfg() {
     }
     strcpy(configDir, full_path.we_wordv[0]);
   } else {
-    #ifdef _TD_OEM_POWER_
+    #ifdef _TD_POWER_
     printf("configDir:%s not there, use default value: /etc/power", configDir);
     strcpy(configDir, "/etc/power");
     #else
diff --git a/src/util/src/tlog.c b/src/util/src/tlog.c
index f532e2e93c..766301914a 100644
--- a/src/util/src/tlog.c
+++ b/src/util/src/tlog.c
@@ -66,7 +66,7 @@ int32_t tsAsyncLog = 1;
 float   tsTotalLogDirGB = 0;
 float   tsAvailLogDirGB = 0;
 float   tsMinimalLogDirGB = 0.1f;
-#ifdef _TD_OEM_POWER_
+#ifdef _TD_POWER_
 char    tsLogDir[TSDB_FILENAME_LEN] = "/var/log/power";
 #else
 char    tsLogDir[TSDB_FILENAME_LEN] = "/var/log/taos";

From 934f2c473d65a2fdd6180a9ef053690c5210272f Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Sat, 29 Aug 2020 16:16:02 +0800
Subject: [PATCH 11/69] [TD-1228]

---
 src/os/src/windows/wEnv.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/src/os/src/windows/wEnv.c b/src/os/src/windows/wEnv.c
index 5544c4ba39..8110a19490 100644
--- a/src/os/src/windows/wEnv.c
+++ b/src/os/src/windows/wEnv.c
@@ -22,16 +22,29 @@ extern void taosWinSocketInit();
 
 void osInit() {
   taosSetCoreDump();
+#ifdef _TD_POWER_
+  if (configDir[0] == 0) {
+    strcpy(configDir, "C:/PowerDB/cfg");
+  }
+
+  strcpy(tsVnodeDir, "C:/PowerDB/data");
+  strcpy(tsDataDir, "C:/PowerDB/data");
+  strcpy(tsLogDir, "C:/PowerDB/log");
+  strcpy(tsScriptDir, "C:/PowerDB/script");
+
+#else
   if (configDir[0] == 0) {
     strcpy(configDir, "C:/TDengine/cfg");
   }
 
   strcpy(tsVnodeDir, "C:/TDengine/data");
-  strcpy(tsDnodeDir, "");
-  strcpy(tsMnodeDir, "");
   strcpy(tsDataDir, "C:/TDengine/data");
   strcpy(tsLogDir, "C:/TDengine/log");
   strcpy(tsScriptDir, "C:/TDengine/script");
+#endif
+
+  strcpy(tsDnodeDir, "");
+  strcpy(tsMnodeDir, "");  
   strcpy(tsOsName, "Windows");
   taosWinSocketInit();
-}
\ No newline at end of file
+}

From 1afed4c067e30f25e9d623785390f03a72217f43 Mon Sep 17 00:00:00 2001
From: Bomin Zhang <bmzhang@taosdata.com>
Date: Sat, 29 Aug 2020 17:18:14 +0800
Subject: [PATCH 12/69] td-1099: fix bug & compile error / add test cases

---
 src/client/src/tscSQLParser.c        |   4 +-
 src/query/src/qExecutor.c            |  16 +--
 tests/pytest/query/natualInterval.py | 170 +++++++++++++++++++++++++++
 3 files changed, 178 insertions(+), 12 deletions(-)
 create mode 100644 tests/pytest/query/natualInterval.py

diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 3e99b644bd..9c677dc555 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -586,7 +586,7 @@ int32_t parseIntervalClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQ
   }
 
   // interval is not null
-  SSQLToken* t = &pQuerySql->interval;
+  SStrToken* t = &pQuerySql->interval;
   if (parseDuration(t->z, t->n, &pQueryInfo->intervalTime, &pQueryInfo->intervalTimeUnit) != TSDB_CODE_SUCCESS) {
     return TSDB_CODE_TSC_INVALID_SQL;
   }
@@ -672,7 +672,7 @@ int32_t parseSlidingClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQu
   STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, 0);
   STableComInfo tinfo = tscGetTableInfo(pTableMetaInfo->pTableMeta);
 
-  SSQLToken* pSliding = &pQuerySql->sliding;
+  SStrToken* pSliding = &pQuerySql->sliding;
   if (pSliding->n == 0) {
     pQueryInfo->slidingTimeUnit = pQueryInfo->intervalTimeUnit;
     pQueryInfo->slidingTime = pQueryInfo->intervalTime;
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 6c4046d776..79a4243537 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -172,28 +172,24 @@ static void getNextTimeWindow(SQuery* pQuery, STimeWindow* tw) {
     return;
   }
 
-  int64_t key = tw->skey;
-  key /= 1000;
+  int64_t key = tw->skey / 1000, interval = pQuery->intervalTime;
   if (pQuery->precision == TSDB_TIME_PRECISION_MICRO) {
     key /= 1000;
   }
+  if (pQuery->intervalTimeUnit == 'y') {
+    interval *= 12;
+  }
 
   struct tm tm;
   time_t t = (time_t)key;
   localtime_r(&t, &tm);
 
-  if (pQuery->intervalTimeUnit == 'y') {
-    factor *= 12;
-  }
-
-  int mon = tm.tm_year * 12 + tm.tm_mon;
-  mon += pQuery->intervalTime * factor;
+  int mon = tm.tm_year * 12 + tm.tm_mon + interval * factor;
   tm.tm_year = mon / 12;
   tm.tm_mon = mon % 12;
-
   tw->skey = mktime(&tm) * 1000L;
 
-  mon += pQuery->intervalTime * factor;
+  mon += interval;
   tm.tm_year = mon / 12;
   tm.tm_mon = mon % 12;
   tw->ekey = mktime(&tm) * 1000L;
diff --git a/tests/pytest/query/natualInterval.py b/tests/pytest/query/natualInterval.py
new file mode 100644
index 0000000000..1ed91e1c68
--- /dev/null
+++ b/tests/pytest/query/natualInterval.py
@@ -0,0 +1,170 @@
+###################################################################
+#           Copyright (c) 2020 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import *
+from util.cases import *
+from util.sql import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor())
+
+    def singleTable(self):
+        tdSql.execute("create table car(ts timestamp, s int)")
+        tdSql.execute("insert into car values('2019-01-01 00:00:00', 1)")
+        tdSql.execute("insert into car values('2019-05-13 12:00:00', 1)")
+        tdSql.execute("insert into car values('2019-12-31 23:59:59', 1)")
+        tdSql.execute("insert into car values('2020-01-01 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-01-02 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-01-03 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-01-04 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-01-05 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-01-31 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-02-01 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-02-02 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-02-29 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-03-01 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-03-02 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-03-15 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-03-31 12:00:00', 1)")
+        tdSql.execute("insert into car values('2020-05-01 12:00:00', 1)")
+
+        tdSql.query("select count(*) from car interval(1n)")
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(3, 1, 6)
+        tdSql.checkData(4, 1, 3)
+        tdSql.checkData(5, 1, 4)
+        tdSql.checkData(6, 1, 1)
+
+        tdSql.query("select count(*) from car interval(1n) order by ts desc")
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(3, 1, 6)
+        tdSql.checkData(2, 1, 3)
+        tdSql.checkData(1, 1, 4)
+        tdSql.checkData(0, 1, 1)
+
+        tdSql.query("select count(*) from car interval(2n)")
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(3, 1, 9)
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 1, 1)
+
+        tdSql.query("select count(*) from car interval(2n) order by ts desc")
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(2, 1, 9)
+        tdSql.checkData(1, 1, 4)
+        tdSql.checkData(0, 1, 1)
+
+        tdSql.query("select count(*) from car interval(1y)")
+        tdSql.checkData(0, 1, 3)
+        tdSql.checkData(1, 1, 14)
+
+        tdSql.query("select count(*) from car interval(2y)")
+        tdSql.checkData(0, 1, 3)
+        tdSql.checkData(1, 1, 14)
+
+
+    def superTable(self):
+        tdSql.execute("create table cars(ts timestamp, s int) tags(id int)")
+        tdSql.execute("create table car0 using cars tags(0)")
+        tdSql.execute("create table car1 using cars tags(0)")
+        tdSql.execute("create table car2 using cars tags(0)")
+        tdSql.execute("create table car3 using cars tags(0)")
+        tdSql.execute("create table car4 using cars tags(0)")
+
+        tdSql.execute("insert into car0 values('2019-01-01 00:00:00', 1)")
+        tdSql.execute("insert into car1 values('2019-05-13 12:00:00', 1)")
+        tdSql.execute("insert into car2 values('2019-12-31 23:59:59', 1)")
+        tdSql.execute("insert into car1 values('2020-01-01 12:00:00', 1)")
+        tdSql.execute("insert into car1 values('2020-01-02 12:00:00', 1)")
+        tdSql.execute("insert into car1 values('2020-01-03 12:00:00', 1)")
+        tdSql.execute("insert into car1 values('2020-01-04 12:00:00', 1)")
+        tdSql.execute("insert into car1 values('2020-01-05 12:00:00', 1)")
+        tdSql.execute("insert into car1 values('2020-01-31 12:00:00', 1)")
+        tdSql.execute("insert into car1 values('2020-02-01 12:00:00', 1)")
+        tdSql.execute("insert into car2 values('2020-02-02 12:00:00', 1)")
+        tdSql.execute("insert into car2 values('2020-02-29 12:00:00', 1)")
+        tdSql.execute("insert into car3 values('2020-03-01 12:00:00', 1)")
+        tdSql.execute("insert into car3 values('2020-03-02 12:00:00', 1)")
+        tdSql.execute("insert into car3 values('2020-03-15 12:00:00', 1)")
+        tdSql.execute("insert into car4 values('2020-03-31 12:00:00', 1)")
+        tdSql.execute("insert into car3 values('2020-05-01 12:00:00', 1)")
+
+        tdSql.query("select count(*) from cars interval(1n)")
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(3, 1, 6)
+        tdSql.checkData(4, 1, 3)
+        tdSql.checkData(5, 1, 4)
+        tdSql.checkData(6, 1, 1)
+
+        tdSql.query("select count(*) from cars interval(1n) order by ts desc")
+        tdSql.checkData(6, 1, 1)
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(3, 1, 6)
+        tdSql.checkData(2, 1, 3)
+        tdSql.checkData(1, 1, 4)
+        tdSql.checkData(0, 1, 1)
+
+        tdSql.query("select count(*) from cars interval(2n)")
+        tdSql.checkData(0, 1, 1)
+        tdSql.checkData(1, 1, 1)
+        tdSql.checkData(2, 1, 1)
+        tdSql.checkData(3, 1, 9)
+        tdSql.checkData(4, 1, 4)
+        tdSql.checkData(5, 1, 1)
+
+        tdSql.query("select count(*) from cars interval(2n) order by ts desc")
+        tdSql.checkData(5, 1, 1)
+        tdSql.checkData(4, 1, 1)
+        tdSql.checkData(3, 1, 1)
+        tdSql.checkData(2, 1, 9)
+        tdSql.checkData(1, 1, 4)
+        tdSql.checkData(0, 1, 1)
+
+        tdSql.query("select count(*) from cars interval(1y)")
+        tdSql.checkData(0, 1, 3)
+        tdSql.checkData(1, 1, 14)
+
+        tdSql.query("select count(*) from cars interval(2y)")
+        tdSql.checkData(0, 1, 3)
+        tdSql.checkData(1, 1, 14)
+
+
+    def run(self):
+        tdSql.prepare()
+        self.singleTable()
+        self.superTable()
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

From 38992dd327728361c4a37b521c29c6726853f468 Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sangshuduo@gmail.com>
Date: Sat, 29 Aug 2020 22:51:37 +0800
Subject: [PATCH 13/69] daemon works with strict mode now.

---
 snap/local/launcher.sh | 11 ++++++-----
 snap/snapcraft.yaml    | 12 +++++++-----
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/snap/local/launcher.sh b/snap/local/launcher.sh
index 52b3e4ce5c..29a7a63779 100755
--- a/snap/local/launcher.sh
+++ b/snap/local/launcher.sh
@@ -15,11 +15,12 @@ case "$SNAP_USER_COMMON" in
 	*)                             COMMON=$SNAP_USER_COMMON ;;
 esac
 
-if [ -d /etc/taos ]; then
-    CONFIG_FILE="/etc/taos"
-else
-    CONFIG_FILE="$SNAP/etc/taos"
+if [ ! -f $SNAP_DATA/etc/taos/taos.cfg ]; then
+  if [ ! -d $SNAP_DATA/etc/taos ]; then
+    mkdir -p $SNAP_DATA/etc/taos
+  fi
+  cp $SNAP/etc/taos/taos.cfg $SNAP_DATA/etc/taos
 fi
 
 # Launch the snap
-$SNAP/usr/bin/taosd -c $CONFIG_FILE $@
+$SNAP/usr/bin/taosd -c /etc/taos $@
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index cf4f993394..4a7dff3ec6 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -1,13 +1,13 @@
 name: tdengine
 base: core18 # the base snap is the execution environment for this snap
-version: '2.0.0.6' # just for humans, typically '1.2+git' or '1.3.2'
+version: '2.0.1.1' # just for humans, typically '1.2+git' or '1.3.2'
 icon: snap/gui/t-dengine.svg
 summary: an open-source big data platform designed and optimized for IoT. 
 description: |
   TDengine is an open-source big data platform designed and optimized for Internet of Things (IoT), Connected Vehicles, and Industrial IoT. Besides the 10x faster time-series database, it provides caching, stream computing, message queuing and other functionalities to reduce the complexity and costs of development and operations.
 
 grade: stable
-confinement: classic
+confinement: strict
 
 apps:
   tdengine:
@@ -24,7 +24,9 @@ apps:
     command: taoswrapper.sh
     plugs:
       - network
+      - system-observe
       - systemfiles
+      - home
 
   taosdemo:
     command: usr/bin/taosdemo
@@ -85,7 +87,7 @@ parts:
       - usr/bin/taosd
       - usr/bin/taos
       - usr/bin/taosdemo
-      - usr/lib/libtaos.so.2.0.0.6
+      - usr/lib/libtaos.so.2.0.1.1
       - usr/lib/libtaos.so.1
       - usr/lib/libtaos.so
 
@@ -103,8 +105,8 @@ layout:
     bind: $SNAP_DATA/var/lib/taos
   /var/log/taos:
     bind: $SNAP_DATA/var/log/taos
-  /etc/taos/taos.cfg:
-    bind-file: $SNAP_DATA/etc/taos/taos.cfg
+  /etc/taos:
+    bind: $SNAP_DATA/etc/taos
 
 
 hooks:

From b8e2583ca3d35839c68269d777b999edf9c71b0a Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sangshuduo@gmail.com>
Date: Sun, 30 Aug 2020 00:17:30 +0800
Subject: [PATCH 14/69] upgrade to 2.0.2.0

---
 snap/hooks/install  |  5 ++++-
 snap/snapcraft.yaml | 12 +++++++-----
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/snap/hooks/install b/snap/hooks/install
index e58918d2c3..aa12fe051f 100755
--- a/snap/hooks/install
+++ b/snap/hooks/install
@@ -5,7 +5,7 @@ if [ ! -d /var/lib/taos ]; then
 fi
 
 if [ ! -d /var/log/taos ]; then
-  mkdir -p -m777 /var/log/taos
+  mkdir -p --mode=777 /var/log/taos
 fi
 
 if [ ! -d /etc/taos ]; then
@@ -13,5 +13,8 @@ if [ ! -d /etc/taos ]; then
 fi
 
 if [ ! -f /etc/taos/taos.cfg ]; then
+  if [ ! -d /etc/taos ]; then
+    mkdir -p /etc/taos
+  fi
   cp $SNAP/etc/taos/taos.cfg /etc/taos/taos.cfg
 fi
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 4a7dff3ec6..1d1a00e50e 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -1,6 +1,6 @@
 name: tdengine
 base: core18 # the base snap is the execution environment for this snap
-version: '2.0.1.1' # just for humans, typically '1.2+git' or '1.3.2'
+version: '2.0.2.0' # just for humans, typically '1.2+git' or '1.3.2'
 icon: snap/gui/t-dengine.svg
 summary: an open-source big data platform designed and optimized for IoT. 
 description: |
@@ -22,6 +22,8 @@ apps:
 
   taos:
     command: taoswrapper.sh
+    environment:
+      HOME: /home/$USER
     plugs:
       - network
       - system-observe
@@ -79,7 +81,7 @@ parts:
         mkdir -p $SNAPCRAFT_STAGE/var/lib/taos
       fi
       if [ ! -d $SNAPCRAFT_STAGE/var/log/taos ]; then
-        mkdir -p $SNAPCRAFT_STAGE/var/log/taos
+        mkdir -p --mode=777 $SNAPCRAFT_STAGE/var/log/taos
       fi
 
     prime:
@@ -87,16 +89,16 @@ parts:
       - usr/bin/taosd
       - usr/bin/taos
       - usr/bin/taosdemo
-      - usr/lib/libtaos.so.2.0.1.1
+      - usr/lib/libtaos.so.2.0.2.0
       - usr/lib/libtaos.so.1
       - usr/lib/libtaos.so
 
     override-prime: |
       snapcraftctl prime
-      if [ ! -d $SNAPCRAFT_STAGE/var/lib/taos ]; then
+      if [ ! -d $SNAPCRAFT_PRIME/var/lib/taos ]; then
         cp -rf $SNAPCRAFT_STAGE/var/lib/taos $SNAPCRAFT_PRIME
       fi
-      if [ ! -d $SNAPCRAFT_STAGE/var/log/taos ]; then
+      if [ ! -d $SNAPCRAFT_PRIME/var/log/taos ]; then
         cp -rf  $SNAPCRAFT_STAGE/var/log/taos $SNAPCRAFT_PRIME
       fi
 

From a67361ebb973d87cb3a5aed84f0dee001df7d738 Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Sun, 30 Aug 2020 01:36:16 +0000
Subject: [PATCH 15/69] add test cast

---
 src/client/src/tscFunctionImpl.c          |   4 +-
 tests/script/general/compute/last_row.sim | 175 ++++++++++++++++++++++
 2 files changed, 177 insertions(+), 2 deletions(-)
 create mode 100644 tests/script/general/compute/last_row.sim

diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index cf256ee616..de90e7f74d 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -1648,10 +1648,10 @@ static void last_function(SQLFunctionCtx *pCtx) {
   for (int32_t i = pCtx->size - 1; i >= 0; --i) {
     char *data = GET_INPUT_CHAR_INDEX(pCtx, i);
     if (pCtx->hasNull && isNull(data, pCtx->inputType)) {
+      if (!pCtx->requireNull) {
         continue; 
+      }
     }
-   
-    
     memcpy(pCtx->aOutputBuf, data, pCtx->inputBytes);
     
     TSKEY ts = pCtx->ptsList[i];
diff --git a/tests/script/general/compute/last_row.sim b/tests/script/general/compute/last_row.sim
new file mode 100644
index 0000000000..cc5cc3edbb
--- /dev/null
+++ b/tests/script/general/compute/last_row.sim
@@ -0,0 +1,175 @@
+system sh/stop_dnodes.sh
+
+system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c walLevel -v 0
+system sh/exec.sh -n dnode1 -s start
+sleep 3000
+sql connect
+
+$dbPrefix = m_la_db
+$tbPrefix = m_la_tb
+$mtPrefix = m_la_mt
+$tbNum = 10
+$rowNum = 20
+$totalNum = 200
+
+print =============== step1
+$i = 0
+$db = $dbPrefix . $i
+$mt = $mtPrefix . $i
+
+sql drop database $db -x step1
+step1:
+sql create database $db
+sql use $db
+sql create table $mt (ts timestamp, tbcol int) TAGS(tgcol int)
+
+$i = 0
+while $i < $tbNum
+  $tb = $tbPrefix . $i
+  sql create table $tb using $mt tags( $i )
+  
+  $x = 0
+  while $x < $rowNum
+    $ms = $x . m 
+    sql insert into $tb values (now + $ms , $x ) 
+    $x = $x + 1
+  endw 
+ 
+  $i = $i + 1
+endw 
+
+sleep 100
+
+print =============== step2
+$i = 1
+$tb = $tbPrefix . $i
+
+sql select last_row(tbcol) from $tb
+print ===> $data00
+if $data00 != 19 then 
+  return -1
+endi
+
+print =============== step3
+sql select last_row(tbcol) from $tb where ts < now + 4m
+print ===> $data00
+if $data00 != 4 then 
+  return -1
+endi
+
+print =============== step4
+sql select last_row(tbcol) as b from $tb
+print ===> $data00
+if $data00 != 19 then 
+  return -1
+endi
+
+
+
+print =============== step7
+sql select last_row(tbcol) from $mt
+print ===> $data00
+if $data00 != 19 then 
+  return -1
+endi
+
+print =============== step8
+sql select last_row(tbcol) as c from $mt where ts < now + 4m
+print ===> $data00
+if $data00 != 4 then 
+  return -1
+endi
+
+sql select last_row(tbcol) as c from $mt where tgcol < 5
+print ===> $data00
+if $data00 != 19 then 
+  return -1
+endi
+
+sql select last_row(tbcol) as c from $mt where tgcol < 5 and ts < now + 4m
+print ===> $data00
+if $data00 != 4 then 
+  return -1
+endi
+
+
+
+print =============== step10
+sql select last_row(tbcol) as b from $mt group by tgcol
+print ===> $data00
+if $data00 != 19 then 
+  return -1
+endi
+
+if $rows != $tbNum then 
+  return -1
+endi
+
+print =============== step11
+
+sql insert into $tb values(now + 1h, 10) 
+sql insert into $tb values(now + 3h, null) 
+sql insert into $tb values(now + 5h, -1) 
+sql insert into $tb values(now + 7h, null) 
+
+## for super table
+sql select last_row(*) from $mt where ts < now + 6h
+if $data01 != -1 then 
+  return -1
+endi
+
+sql select last_row(*) from $mt where ts < now + 8h
+if $data01 != NULL then 
+  return -1
+endi
+
+sql select last_row(*) from $mt
+if $data01 != NULL then 
+  return -1
+endi
+
+sql select last_row(*) from $mt where ts < now + 4h
+if $data01 != NULL then 
+  return -1
+endi
+
+sql select last_row(*) from $mt where ts > now + 1h and ts < now + 4h
+if $data01 != NULL then 
+  return -1
+endi
+
+## for table
+sql select last_row(*) from $tb where ts < now + 6h
+if $data01 != -1 then 
+  return -1
+endi
+
+sql select last_row(*) from $tb where ts < now + 8h
+if $data01 != NULL then 
+  return -1
+endi
+
+sql select last_row(*) from $tb
+if $data01 != NULL then 
+  return -1
+endi
+
+sql select last_row(*) from $tb where ts < now + 4h
+if $data01 != NULL then 
+  return -1
+endi
+
+sql select last_row(*) from $tb where ts > now + 1h and ts < now + 4h
+if $data01 != NULL then 
+  return -1
+endi
+
+print =============== clear
+sql drop database $db
+sql show databases
+if $rows != 0 then 
+  return -1
+endi
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT

From aac7fc671a1e4d40e79a322def7794d9caa27d2c Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Sun, 30 Aug 2020 03:01:51 +0000
Subject: [PATCH 16/69] add sim fullGeneralSuite.sim

---
 tests/script/fullGeneralSuite.sim | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/script/fullGeneralSuite.sim b/tests/script/fullGeneralSuite.sim
index 15cc2954e8..d137e53d27 100644
--- a/tests/script/fullGeneralSuite.sim
+++ b/tests/script/fullGeneralSuite.sim
@@ -24,6 +24,7 @@ run general/compute/diff2.sim
 run general/compute/first.sim
 run general/compute/interval.sim
 run general/compute/last.sim
+run general/compute/last_row.sim
 run general/compute/leastsquare.sim
 run general/compute/max.sim
 run general/compute/min.sim

From ba31633a58bf66620a48625aac7eae6b3b466867 Mon Sep 17 00:00:00 2001
From: robot <robotspace.biz@gmail.com>
Date: Sun, 30 Aug 2020 12:09:37 +0800
Subject: [PATCH 17/69] Update query api for Lua connector.

All connectors should be updated since taos_query has been modified for thread safety. Only query api is updated, callback in stream is not yet.
---
 tests/examples/lua/lua_connector.c | 25 +++++++------------------
 tests/examples/lua/test.lua        |  4 ++--
 2 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/tests/examples/lua/lua_connector.c b/tests/examples/lua/lua_connector.c
index f4065bb274..143f16a799 100644
--- a/tests/examples/lua/lua_connector.c
+++ b/tests/examples/lua/lua_connector.c
@@ -58,8 +58,10 @@ static int l_query(lua_State *L){
   int table_index = lua_gettop(L);
 
   //  printf("receive command:%s\r\n",s);
-  if(taos_query(taos, s)!=0){
-    printf("failed, reason:%s\n", taos_errstr(taos));
+    result = taos_query(taos,s);
+    int32_t code = taos_errno(result);
+  if( code != 0){
+    printf("failed, reason:%s\n", taos_errstr(result));
     lua_pushnumber(L, -1);
     lua_setfield(L, table_index, "code");    
     lua_pushstring(L, taos_errstr(taos));
@@ -69,24 +71,13 @@ static int l_query(lua_State *L){
     
   }else{
     //printf("success to query.\n");
-    result = taos_use_result(taos);
-
-    if (result == NULL) {
-      printf("failed to get result, reason:%s\n", taos_errstr(taos));
-      lua_pushnumber(L, -2);
-      lua_setfield(L, table_index, "code");    
-      lua_pushstring(L, taos_errstr(taos));
-      lua_setfield(L, table_index, "error");    
-      return 1;
-    }
-
     TAOS_ROW    row;
     int         rows = 0;
-    int         num_fields = taos_field_count(taos);
+    int         num_fields = taos_field_count(result);
     TAOS_FIELD *fields = taos_fetch_fields(result);
     char        temp[256];
 
-    int affectRows = taos_affected_rows(taos);
+    int affectRows = taos_affected_rows(result);
     //    printf(" affect rows:%d\r\n", affectRows);
     lua_pushnumber(L, 0);
     lua_setfield(L, table_index, "code");
@@ -155,15 +146,13 @@ static int l_query(lua_State *L){
 }
 
 void stream_cb(void *param, TAOS_RES *result, TAOS_ROW row){
-
   struct cb_param* p = (struct cb_param*) param;
   TAOS_FIELD *fields = taos_fetch_fields(result);
   int         numFields = taos_num_fields(result);
 
+  printf("\nnumfields:%d\n", numFields);
   printf("\n\r-----------------------------------------------------------------------------------\n");
 
-  // printf("r:%d, L:%d\n",p->callback, p->state);
-
   lua_State *L = p->state;
   lua_rawgeti(L, LUA_REGISTRYINDEX, p->callback);
 
diff --git a/tests/examples/lua/test.lua b/tests/examples/lua/test.lua
index 38ae1c82f2..4d5f9fe7d3 100644
--- a/tests/examples/lua/test.lua
+++ b/tests/examples/lua/test.lua
@@ -15,7 +15,7 @@ else
    conn = res.conn
 end
 
-local res = driver.query(conn,"drop database demo")
+local res = driver.query(conn,"drop database if exists demo")
 
 res = driver.query(conn,"create database demo")
 if res.code ~=0 then
@@ -106,7 +106,7 @@ end
 
 --From now on we begin continous query in an definite (infinite if you want) loop.
 local loop_index = 0
-while loop_index < 20 do
+while loop_index < 10 do
    local t = os.time()*1000
    local v = loop_index
    res = driver.query(conn,string.format("INSERT INTO therm1 VALUES (%d, %d)",t,v))

From 48229de30dd489e275b63d24cbdec212be3073b6 Mon Sep 17 00:00:00 2001
From: robot <robotspace.biz@gmail.com>
Date: Sun, 30 Aug 2020 12:22:18 +0800
Subject: [PATCH 18/69] Add entrance for Lua connector introduction.

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 8f29adf89b..c8775b5afc 100644
--- a/README.md
+++ b/README.md
@@ -124,6 +124,7 @@ The TDengine community has also kindly built some of their own connectors! Follo
 
 - [Rust Connector](https://github.com/taosdata/TDengine/tree/master/tests/examples/rust)
 - [.Net Core Connector](https://github.com/maikebing/Maikebing.EntityFrameworkCore.Taos)
+- [Lua Connector](https://github.com/taosdata/TDengine/tree/develop/tests/examples/lua)
 
 # How to run the test cases and how to add a new test case?
   TDengine's test framework and all test cases are fully open source.

From 2e7c4d536a42736b1fc906d32328d7364aec5f90 Mon Sep 17 00:00:00 2001
From: "Bison \"goldeagle\" Fan" <bison@bitseed.cn>
Date: Mon, 31 Aug 2020 09:48:58 +0800
Subject: [PATCH 19/69] improve the readme document with building steps

improve building steps with specific linux distributions
---
 README.md | 77 +++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 63 insertions(+), 14 deletions(-)

diff --git a/README.md b/README.md
index 8f29adf89b..42c07ae771 100644
--- a/README.md
+++ b/README.md
@@ -29,24 +29,73 @@ For user manual, system design and architecture, engineering blogs, refer to [TD
 # Building
 At the moment, TDengine only supports building and running on Linux systems. You can choose to [install from packages](https://www.taosdata.com/en/getting-started/#Install-from-Package) or from the source code. This quick guide is for installation from the source only.
 
-To build TDengine, use [CMake](https://cmake.org/) 2.8 or higher versions in the project directory. Install CMake for example on Ubuntu:
-```
-sudo apt-get install -y cmake build-essential
+To build TDengine, use [CMake](https://cmake.org/) 3.5 or higher versions in the project directory. 
+
+## Install tools
+
+### Ubuntu & Debian:
+```bash
+sudo apt-get install -y gcc cmake build-essential git
 ```
 
 To compile and package the JDBC driver source code, you should have a Java jdk-8 or higher and Apache Maven 2.7 or higher installed. 
-To install openjdk-8 on Ubuntu:
-```
-sudo apt-get install openjdk-8-jdk
-```
-To install Apache Maven on Ubuntu:
-```
-sudo apt-get install maven
+To install openjdk-8:
+```bash
+sudo apt-get install -y openjdk-8-jdk
 ```
 
-Build TDengine:
-
+To install Apache Maven:
+```bash
+sudo apt-get install -y  maven
 ```
+
+### Centos 7:
+```bash
+sudo yum install -y gcc gcc-c++ make cmake3 epel-release git
+sudo yum remove -y cmake
+sudo ln -s /usr/bin/cmake3 /usr/bin/cmake
+```
+
+To install openjdk-8:
+```bash
+sudo yum install -y java-1.8.0-openjdk
+```
+
+To install Apache Maven:
+```bash
+sudo yum install -y maven
+```
+
+### Centos 8 & Fedora:
+```bash
+sudo dnf install -y gcc gcc-c++ make cmake epel-release git
+```
+
+To install openjdk-8:
+```bash
+sudo dnf install -y java-1.8.0-openjdk
+```
+
+To install Apache Maven:
+```bash
+sudo dnf install -y maven
+```
+
+## Get the source codes
+
+- github:
+```bash
+git clone https://github.com/taosdata/TDengine.git
+```
+
+- gitee:
+```bash
+git clone https://gitee.com/mirrors/taosdata-TDengine.git
+```
+
+## Build TDengine
+
+```bash
 mkdir debug && cd debug
 cmake .. && cmake --build .
 ```
@@ -54,12 +103,12 @@ cmake .. && cmake --build .
 To compile on an ARM processor (aarch64 or aarch32), please add option CPUTYPE as below:
 
 aarch64:
-```cmd
+```bash
 cmake .. -DCPUTYPE=aarch64 && cmake --build .
 ```
 
 aarch32:
-```cmd
+```bashapt
 cmake .. -DCPUTYPE=aarch32 && cmake --build .
 ```
 

From 8f5777592339a30330f0551f1c7b33346d1461e9 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 11:34:55 +0800
Subject: [PATCH 20/69] [modify oem macro define]

---
 cmake/install.inc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/cmake/install.inc b/cmake/install.inc
index decb25e3e7..8016f23808 100755
--- a/cmake/install.inc
+++ b/cmake/install.inc
@@ -4,7 +4,7 @@ IF (TD_LINUX)
   INSTALL(CODE "execute_process(COMMAND chmod 777 ${TD_MAKE_INSTALL_SH})")
   INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR})")
 ELSEIF (TD_WINDOWS)
-  IF (TD_OEM_POWER)
+  IF (TD_POWER)
     SET(CMAKE_INSTALL_PREFIX C:/PowerDB)
   ELSE ()
     SET(CMAKE_INSTALL_PREFIX C:/TDengine)
@@ -35,4 +35,4 @@ ELSEIF (TD_DARWIN)
   INSTALL(CODE "MESSAGE(\"make install script: ${TD_MAKE_INSTALL_SH}\")")
   INSTALL(CODE "execute_process(COMMAND chmod 777 ${TD_MAKE_INSTALL_SH})")
   INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR} Darwin)")
-ENDIF ()
\ No newline at end of file
+ENDIF ()

From 018feb4101e902f52123b516655d1e8b50f3e42b Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 11:39:11 +0800
Subject: [PATCH 21/69] [TD-181]

---
 .../dist/taos-1.4.15.linux-x86_64.tar.gz      | Bin 14765 -> 0 bytes
 .../linux/python2/dist/taos-1.4.15.tar.gz     | Bin 6774 -> 0 bytes
 .../linux/python2/taos.egg-info/PKG-INFO      |  13 -----------
 .../linux/python2/taos.egg-info/SOURCES.txt   |  13 -----------
 .../taos.egg-info/dependency_links.txt        |   1 -
 .../linux/python2/taos.egg-info/top_level.txt |   1 -
 .../dist/taos-1.4.15.linux-x86_64.tar.gz      | Bin 15282 -> 0 bytes
 .../linux/python3/dist/taos-1.4.15.tar.gz     | Bin 6878 -> 0 bytes
 .../linux/python3/taos.egg-info/PKG-INFO      |  13 -----------
 .../linux/python3/taos.egg-info/SOURCES.txt   |  13 -----------
 .../taos.egg-info/dependency_links.txt        |   1 -
 .../linux/python3/taos.egg-info/top_level.txt |   1 -
 src/connector/python/linux/python3/test.py    |  21 ------------------
 .../python2/dist/taos-1.4.15-py2-none-any.whl | Bin 9164 -> 0 bytes
 .../windows/python2/dist/taos-1.4.15.tar.gz   | Bin 7021 -> 0 bytes
 .../windows/python2/taos.egg-info/PKG-INFO    |  13 -----------
 .../windows/python2/taos.egg-info/SOURCES.txt |  13 -----------
 .../taos.egg-info/dependency_links.txt        |   1 -
 .../python2/taos.egg-info/top_level.txt       |   1 -
 .../python3/dist/taos-1.4.15-py3-none-any.whl | Bin 8986 -> 0 bytes
 .../windows/python3/dist/taos-1.4.15.tar.gz   | Bin 6992 -> 0 bytes
 .../windows/python3/taos.egg-info/PKG-INFO    |  13 -----------
 .../windows/python3/taos.egg-info/SOURCES.txt |  13 -----------
 .../taos.egg-info/dependency_links.txt        |   1 -
 .../python3/taos.egg-info/top_level.txt       |   1 -
 25 files changed, 133 deletions(-)
 delete mode 100644 src/connector/python/linux/python2/dist/taos-1.4.15.linux-x86_64.tar.gz
 delete mode 100644 src/connector/python/linux/python2/dist/taos-1.4.15.tar.gz
 delete mode 100644 src/connector/python/linux/python2/taos.egg-info/PKG-INFO
 delete mode 100644 src/connector/python/linux/python2/taos.egg-info/SOURCES.txt
 delete mode 100644 src/connector/python/linux/python2/taos.egg-info/dependency_links.txt
 delete mode 100644 src/connector/python/linux/python2/taos.egg-info/top_level.txt
 delete mode 100644 src/connector/python/linux/python3/dist/taos-1.4.15.linux-x86_64.tar.gz
 delete mode 100644 src/connector/python/linux/python3/dist/taos-1.4.15.tar.gz
 delete mode 100644 src/connector/python/linux/python3/taos.egg-info/PKG-INFO
 delete mode 100644 src/connector/python/linux/python3/taos.egg-info/SOURCES.txt
 delete mode 100644 src/connector/python/linux/python3/taos.egg-info/dependency_links.txt
 delete mode 100644 src/connector/python/linux/python3/taos.egg-info/top_level.txt
 delete mode 100644 src/connector/python/linux/python3/test.py
 delete mode 100644 src/connector/python/windows/python2/dist/taos-1.4.15-py2-none-any.whl
 delete mode 100644 src/connector/python/windows/python2/dist/taos-1.4.15.tar.gz
 delete mode 100644 src/connector/python/windows/python2/taos.egg-info/PKG-INFO
 delete mode 100644 src/connector/python/windows/python2/taos.egg-info/SOURCES.txt
 delete mode 100644 src/connector/python/windows/python2/taos.egg-info/dependency_links.txt
 delete mode 100644 src/connector/python/windows/python2/taos.egg-info/top_level.txt
 delete mode 100644 src/connector/python/windows/python3/dist/taos-1.4.15-py3-none-any.whl
 delete mode 100644 src/connector/python/windows/python3/dist/taos-1.4.15.tar.gz
 delete mode 100644 src/connector/python/windows/python3/taos.egg-info/PKG-INFO
 delete mode 100644 src/connector/python/windows/python3/taos.egg-info/SOURCES.txt
 delete mode 100644 src/connector/python/windows/python3/taos.egg-info/dependency_links.txt
 delete mode 100644 src/connector/python/windows/python3/taos.egg-info/top_level.txt

diff --git a/src/connector/python/linux/python2/dist/taos-1.4.15.linux-x86_64.tar.gz b/src/connector/python/linux/python2/dist/taos-1.4.15.linux-x86_64.tar.gz
deleted file mode 100644
index b9c4e9e5718f5b35956fc46e37a5a67d41a1ae3f..0000000000000000000000000000000000000000
GIT binary patch
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diff --git a/src/connector/python/linux/python2/taos.egg-info/PKG-INFO b/src/connector/python/linux/python2/taos.egg-info/PKG-INFO
deleted file mode 100644
index 96bf9059fd..0000000000
--- a/src/connector/python/linux/python2/taos.egg-info/PKG-INFO
+++ /dev/null
@@ -1,13 +0,0 @@
-Metadata-Version: 2.1
-Name: taos
-Version: 2.0.0
-Summary: TDengine python client package
-Home-page: https://github.com/pypa/sampleproject
-Author: Taosdata Inc.
-Author-email: support@taosdata.com
-License: UNKNOWN
-Description: # TDengine python client interface
-Platform: UNKNOWN
-Classifier: Programming Language :: Python :: 2
-Classifier: Operating System :: Linux
-Description-Content-Type: text/markdown
diff --git a/src/connector/python/linux/python2/taos.egg-info/SOURCES.txt b/src/connector/python/linux/python2/taos.egg-info/SOURCES.txt
deleted file mode 100644
index 23a38056c0..0000000000
--- a/src/connector/python/linux/python2/taos.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,13 +0,0 @@
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-setup.py
-taos/__init__.py
-taos/cinterface.py
-taos/connection.py
-taos/constants.py
-taos/cursor.py
-taos/dbapi.py
-taos/error.py
-taos.egg-info/PKG-INFO
-taos.egg-info/SOURCES.txt
-taos.egg-info/dependency_links.txt
-taos.egg-info/top_level.txt
\ No newline at end of file
diff --git a/src/connector/python/linux/python2/taos.egg-info/dependency_links.txt b/src/connector/python/linux/python2/taos.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789179..0000000000
--- a/src/connector/python/linux/python2/taos.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
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index 6b5f0c008b..0000000000
--- a/src/connector/python/linux/python2/taos.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/src/connector/python/linux/python3/dist/taos-1.4.15.linux-x86_64.tar.gz b/src/connector/python/linux/python3/dist/taos-1.4.15.linux-x86_64.tar.gz
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diff --git a/src/connector/python/linux/python3/taos.egg-info/PKG-INFO b/src/connector/python/linux/python3/taos.egg-info/PKG-INFO
deleted file mode 100644
index 1e6c829ef1..0000000000
--- a/src/connector/python/linux/python3/taos.egg-info/PKG-INFO
+++ /dev/null
@@ -1,13 +0,0 @@
-Metadata-Version: 2.1
-Name: taos
-Version: 2.0.0
-Summary: TDengine python client package
-Home-page: https://github.com/pypa/sampleproject
-Author: Taosdata Inc.
-Author-email: support@taosdata.com
-License: UNKNOWN
-Description: # TDengine python client interface
-Platform: UNKNOWN
-Classifier: Programming Language :: Python :: 3
-Classifier: Operating System :: Linux
-Description-Content-Type: text/markdown
diff --git a/src/connector/python/linux/python3/taos.egg-info/SOURCES.txt b/src/connector/python/linux/python3/taos.egg-info/SOURCES.txt
deleted file mode 100644
index 23a38056c0..0000000000
--- a/src/connector/python/linux/python3/taos.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-README.md
-setup.py
-taos/__init__.py
-taos/cinterface.py
-taos/connection.py
-taos/constants.py
-taos/cursor.py
-taos/dbapi.py
-taos/error.py
-taos.egg-info/PKG-INFO
-taos.egg-info/SOURCES.txt
-taos.egg-info/dependency_links.txt
-taos.egg-info/top_level.txt
\ No newline at end of file
diff --git a/src/connector/python/linux/python3/taos.egg-info/dependency_links.txt b/src/connector/python/linux/python3/taos.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789179..0000000000
--- a/src/connector/python/linux/python3/taos.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/connector/python/linux/python3/taos.egg-info/top_level.txt b/src/connector/python/linux/python3/taos.egg-info/top_level.txt
deleted file mode 100644
index 6b5f0c008b..0000000000
--- a/src/connector/python/linux/python3/taos.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-taos
diff --git a/src/connector/python/linux/python3/test.py b/src/connector/python/linux/python3/test.py
deleted file mode 100644
index b11b2c76a0..0000000000
--- a/src/connector/python/linux/python3/test.py
+++ /dev/null
@@ -1,21 +0,0 @@
-from taos.cinterface import CTaosInterface
-from taos.error import *
-from taos.subscription import TDengineSubscription
-from taos.connection import TDengineConnection
-
-
-if __name__ == '__main__':
-    conn = TDengineConnection(
-        host="127.0.0.1", user="root", password="taosdata", database="test")
-
-    # Generate a cursor object to run SQL commands
-    sub = conn.subscribe(False, "test", "select * from log0601;", 1000)
-
-    for i in range(100):
-        print(i)
-        data = sub.consume()
-        for d in data:
-            print(d)
-
-    sub.close()
-    conn.close()
diff --git a/src/connector/python/windows/python2/dist/taos-1.4.15-py2-none-any.whl b/src/connector/python/windows/python2/dist/taos-1.4.15-py2-none-any.whl
deleted file mode 100644
index 6e97d3a5e40a62e80b633ab7e728839b4299b506..0000000000000000000000000000000000000000
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diff --git a/src/connector/python/windows/python2/taos.egg-info/PKG-INFO b/src/connector/python/windows/python2/taos.egg-info/PKG-INFO
deleted file mode 100644
index 9babb669a7..0000000000
--- a/src/connector/python/windows/python2/taos.egg-info/PKG-INFO
+++ /dev/null
@@ -1,13 +0,0 @@
-Metadata-Version: 2.1
-Name: taos
-Version: 2.0.0
-Summary: TDengine python client package
-Home-page: https://github.com/pypa/sampleproject
-Author: Taosdata Inc.
-Author-email: support@taosdata.com
-License: UNKNOWN
-Description: # TDengine python client interface
-Platform: UNKNOWN
-Classifier: Programming Language :: Python :: 2
-Classifier: Operating System :: Windows
-Description-Content-Type: text/markdown
diff --git a/src/connector/python/windows/python2/taos.egg-info/SOURCES.txt b/src/connector/python/windows/python2/taos.egg-info/SOURCES.txt
deleted file mode 100644
index 23a38056c0..0000000000
--- a/src/connector/python/windows/python2/taos.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-README.md
-setup.py
-taos/__init__.py
-taos/cinterface.py
-taos/connection.py
-taos/constants.py
-taos/cursor.py
-taos/dbapi.py
-taos/error.py
-taos.egg-info/PKG-INFO
-taos.egg-info/SOURCES.txt
-taos.egg-info/dependency_links.txt
-taos.egg-info/top_level.txt
\ No newline at end of file
diff --git a/src/connector/python/windows/python2/taos.egg-info/dependency_links.txt b/src/connector/python/windows/python2/taos.egg-info/dependency_links.txt
deleted file mode 100644
index 8b13789179..0000000000
--- a/src/connector/python/windows/python2/taos.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/connector/python/windows/python2/taos.egg-info/top_level.txt b/src/connector/python/windows/python2/taos.egg-info/top_level.txt
deleted file mode 100644
index 6b5f0c008b..0000000000
--- a/src/connector/python/windows/python2/taos.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-taos
diff --git a/src/connector/python/windows/python3/dist/taos-1.4.15-py3-none-any.whl b/src/connector/python/windows/python3/dist/taos-1.4.15-py3-none-any.whl
deleted file mode 100644
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z&w5{=_n``4!7?<C^{9<)kTW?+b}5E|$0DH45h}%j<wYk;LTX97jG29bJV;^>d3}({
z$8#t-l;`A!fwY09io!ydinp@iNw-EzhsT5~y#nE9BaCj8-G#3<(`aAT#PN#*pQWMs
zn;C_Z&5TH9pYguX0xkUXNUSZu0wr2gXc_i`{hu5oTMn8u@wmVG-=D<(ob(l^;vDRm
z?J<>E%x2iWDROoNda?F@qvvp*u9ZwKnx*zbOV?!vGf#tcg<Hz0b9&Y542h?Ial%nI
z5$wg<k91yp4DLpVkgY2q!=vQn{S^=q@Qk?r%J8sl^}R358#eg)x6I5n;(+Mc>I@-Z
zCA;`@1Z<6Px~#s+YTj6CZj`tnH77KEzd(`b-<P*AY<+nwGCuwD(?6M#A!?whem(4D
z;WP}X^u?Zh^4%&>JTHpBlQQ2fJdB7J^^CFY-vxuXm<i7ODaugHQ{lwc9S@t6s)t@r
z8nO}vk~ck6YrsCStX;!NQwCbM|9@`LFdY%{A&}j*?Sc3UMKWd$(fq&kiCGajl_l&c
zHqI#A*$?LmGVvIt!TAsJG%-KAAXv9}<>LaWPOmx{NgHq~giSI`%HM&(QHK71iQ+TG
zE8^j0Wo~1<i7GtNDiHCQng)Iy#6=XZzJ^mA9_`&hM`I<r-rx~pIJT_j(Wsg}swo`>
zly~fXKsMdIVB#y(X?7UFHJ#X~%4U!;JxrRFY2})jkUO;^u$T-<RxcO}6SN;x8H`1T
z#V;cM3tqyn3<F0G;avgduL%G5e~n!K!mI`mT^xezSBN6`_C-5k$bT?GhH#_O&Fx*S
c=KoZuVe$9<|6|^~av=!qr6l>0rjU^S2c3e*H2?qr

diff --git a/src/connector/python/windows/python3/taos.egg-info/PKG-INFO b/src/connector/python/windows/python3/taos.egg-info/PKG-INFO
deleted file mode 100644
index 6213b0d165..0000000000
--- a/src/connector/python/windows/python3/taos.egg-info/PKG-INFO
+++ /dev/null
@@ -1,13 +0,0 @@
-Metadata-Version: 2.1
-Name: taos
-Version: 2.0.0
-Summary: TDengine python client package
-Home-page: https://github.com/pypa/sampleproject
-Author: Hongze Cheng
-Author-email: hzcheng@taosdata.com
-License: UNKNOWN
-Description: # TDengine python client interface
-Platform: UNKNOWN
-Classifier: Programming Language :: Python :: 3
-Classifier: Operating System :: Windows
-Description-Content-Type: text/markdown
diff --git a/src/connector/python/windows/python3/taos.egg-info/SOURCES.txt b/src/connector/python/windows/python3/taos.egg-info/SOURCES.txt
deleted file mode 100644
index 0dbf14e5b6..0000000000
--- a/src/connector/python/windows/python3/taos.egg-info/SOURCES.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-README.md
-setup.py
-taos/__init__.py
-taos/cinterface.py
-taos/connection.py
-taos/constants.py
-taos/cursor.py
-taos/dbapi.py
-taos/error.py
-taos.egg-info/PKG-INFO
-taos.egg-info/SOURCES.txt
-taos.egg-info/dependency_links.txt
-taos.egg-info/top_level.txt
\ No newline at end of file
diff --git a/src/connector/python/windows/python3/taos.egg-info/dependency_links.txt b/src/connector/python/windows/python3/taos.egg-info/dependency_links.txt
deleted file mode 100644
index d3f5a12faa..0000000000
--- a/src/connector/python/windows/python3/taos.egg-info/dependency_links.txt
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/src/connector/python/windows/python3/taos.egg-info/top_level.txt b/src/connector/python/windows/python3/taos.egg-info/top_level.txt
deleted file mode 100644
index bb442feabd..0000000000
--- a/src/connector/python/windows/python3/taos.egg-info/top_level.txt
+++ /dev/null
@@ -1 +0,0 @@
-taos

From 04f023ff0a836bfd1f934f56cd91f34c655ac81f Mon Sep 17 00:00:00 2001
From: Yiqing Liu <yqliu@taosdata.com>
Date: Mon, 31 Aug 2020 11:48:29 +0800
Subject: [PATCH 22/69] Update faq-ch.md

---
 .../webdocs/markdowndocs/faq-ch.md            | 20 +++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/documentation20/webdocs/markdowndocs/faq-ch.md b/documentation20/webdocs/markdowndocs/faq-ch.md
index b760fe161a..2b51458f27 100644
--- a/documentation20/webdocs/markdowndocs/faq-ch.md
+++ b/documentation20/webdocs/markdowndocs/faq-ch.md
@@ -23,14 +23,18 @@
 
 客户端遇到链接故障，请按照下面的步骤进行检查：
 
-1. 确保客户端与服务端版本号是完全一致的，开源社区版和企业版也不能混用
-2. 在服务器，执行 `systemctl status taosd` 检查*taosd*运行状态。如果没有运行，启动*taosd*
-3. 确认客户端连接时指定了正确的服务器FQDN (Fully Qualified Domain Name(可在服务器上执行Linux命令hostname -f获得）
-4. ping服务器FQDN，如果没有反应，请检查你的网络，DNS设置，或客户端所在计算机的系统hosts文件
-5. 检查防火墙设置，确认TCP/UDP 端口6030-6039 是打开的
-6. 对于Linux上的JDBC（ODBC, Python, Go等接口类似）连接, 确保*libtaos.so*在目录*/usr/local/lib/taos*里, 并且*/usr/local/lib/taos*在系统库函数搜索路径*LD_LIBRARY_PATH*里 
-7. 对于windows上的JDBC, ODBC, Python, Go等连接，确保*driver/c/taos.dll*在你的系统搜索目录里 (建议*taos.dll*放在目录 *C:\Windows\System32*)
-8. 如果仍不能排除连接故障，请使用命令行工具nc来分别判断指定端口的TCP和UDP连接是否通畅
+1. 检查网络环境
+    * 云服务器：检查云服务器的安全组是否打开TCP/UDP 端口6030-6039的访问权限
+    * 本地虚拟机：检查网络能否ping通，尽量避免使用`localhost` 作为hostname
+    * 公司服务器：如果为NAT网络环境，请务必检查服务器能否将消息返回值客户端
+2. 确保客户端与服务端版本号是完全一致的，开源社区版和企业版也不能混用
+3. 在服务器，执行 `systemctl status taosd` 检查*taosd*运行状态。如果没有运行，启动*taosd*
+4. 确认客户端连接时指定了正确的服务器FQDN (Fully Qualified Domain Name(可在服务器上执行Linux命令hostname -f获得）
+5. ping服务器FQDN，如果没有反应，请检查你的网络，DNS设置，或客户端所在计算机的系统hosts文件
+6. 检查防火墙设置，确认TCP/UDP 端口6030-6039 是打开的
+7. 对于Linux上的JDBC（ODBC, Python, Go等接口类似）连接, 确保*libtaos.so*在目录*/usr/local/lib/taos*里, 并且*/usr/local/lib/taos*在系统库函数搜索路径*LD_LIBRARY_PATH*里 
+8. 对于windows上的JDBC, ODBC, Python, Go等连接，确保*driver/c/taos.dll*在你的系统搜索目录里 (建议*taos.dll*放在目录 *C:\Windows\System32*)
+9. 如果仍不能排除连接故障，请使用命令行工具nc来分别判断指定端口的TCP和UDP连接是否通畅
    检查UDP端口连接是否工作：`nc -vuz {hostIP} {port} `
    检查服务器侧TCP端口连接是否工作：`nc -l {port}`
    检查客户端侧TCP端口链接是否工作：`nc {hostIP} {port}`

From 29d2e3eeadd360248e5d5fa300c9651a01c3cc31 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Mon, 31 Aug 2020 13:25:12 +0800
Subject: [PATCH 23/69] TD-1247 crash while release hash obj

---
 src/util/src/hash.c      | 20 ++++++--------------
 tests/script/tmp/182.sim | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+), 14 deletions(-)
 create mode 100644 tests/script/tmp/182.sim

diff --git a/src/util/src/hash.c b/src/util/src/hash.c
index 7d10545ce7..9634175db7 100644
--- a/src/util/src/hash.c
+++ b/src/util/src/hash.c
@@ -377,6 +377,12 @@ int32_t taosHashRemoveWithData(SHashObj *pHashObj, const void *key, size_t keyLe
     }
   }
 
+  if (pe->num == 0) {
+    assert(pe->next == NULL);
+  } else {
+    assert(pe->next != NULL);
+  }
+
   if (pHashObj->type == HASH_ENTRY_LOCK) {
     taosWUnLockLatch(&pe->latch);
   }
@@ -390,22 +396,8 @@ int32_t taosHashRemoveWithData(SHashObj *pHashObj, const void *key, size_t keyLe
   if (pRes != NULL) {
     atomic_sub_fetch_64(&pHashObj->size, 1);
     FREE_HASH_NODE(pHashObj, pRes);
-
-    if (pe->num == 0) {
-      assert(pe->next == NULL);
-    } else {
-      assert(pe->next != NULL);
-    }
-
     return 0;
   } else {
-
-    if (pe->num == 0) {
-      assert(pe->next == NULL);
-    } else {
-      assert(pe->next != NULL);
-    }
-
     return -1;
   }
 }
diff --git a/tests/script/tmp/182.sim b/tests/script/tmp/182.sim
new file mode 100644
index 0000000000..27e064dc9b
--- /dev/null
+++ b/tests/script/tmp/182.sim
@@ -0,0 +1,40 @@
+system sh/stop_dnodes.sh
+
+system sh/deploy.sh -n dnode1 -i 1
+system sh/deploy.sh -n dnode2 -i 2
+system sh/deploy.sh -n dnode3 -i 3
+system sh/deploy.sh -n dnode4 -i 4
+
+system sh/cfg.sh -n dnode1 -c walLevel -v 2
+system sh/cfg.sh -n dnode2 -c walLevel -v 2
+system sh/cfg.sh -n dnode3 -c walLevel -v 2
+system sh/cfg.sh -n dnode4 -c walLevel -v 2
+
+system sh/cfg.sh -n dnode1 -c numOfMnodes -v 1
+system sh/cfg.sh -n dnode2 -c numOfMnodes -v 1
+system sh/cfg.sh -n dnode3 -c numOfMnodes -v 1
+system sh/cfg.sh -n dnode4 -c numOfMnodes -v 1
+
+system sh/cfg.sh -n dnode1 -c activeCode -v eglxDLzRpslJWl7OxrPZ2K3sQ5631AP9SVpezsaz2dhJWl7OxrPZ2ElaXs7Gs9nYSVpezsaz2djGIj5StnQ3ZvLHcsE8cwcN
+
+system sh/cfg.sh -n dnode1 -c mnodeEqualVnodeNum -v 4
+system sh/cfg.sh -n dnode2 -c mnodeEqualVnodeNum -v 4
+system sh/cfg.sh -n dnode3 -c mnodeEqualVnodeNum -v 4
+system sh/cfg.sh -n dnode4 -c mnodeEqualVnodeNum -v 4
+
+system sh/cfg.sh -n dnode1 -c maxTablesPerVnode -v 100000
+system sh/cfg.sh -n dnode2 -c maxTablesPerVnode -v 100000
+system sh/cfg.sh -n dnode3 -c maxTablesPerVnode -v 100000
+system sh/cfg.sh -n dnode4 -c maxTablesPerVnode -v 100000
+
+system sh/cfg.sh -n dnode1 -c http -v 1
+system sh/cfg.sh -n dnode2 -c http -v 1
+system sh/cfg.sh -n dnode3 -c http -v 1
+system sh/cfg.sh -n dnode4 -c http -v 1
+
+
+system sh/cfg.sh -n dnode1 -c firstEp      -v 127.0.0.1:6030
+system sh/cfg.sh -n dnode1 -c secondEp     -v 127.0.0.1:6030
+system sh/cfg.sh -n dnode1 -c serverPort   -v 6030
+system sh/cfg.sh -n dnode1 -c fqdn         -v 127.0.0.1
+#system sh/exec.sh -n dnode1 -s start

From 17b99416a2c0ed82c6b2cc0245d3aa04255259e8 Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Mon, 31 Aug 2020 05:28:43 +0000
Subject: [PATCH 24/69] TD-934

---
 src/client/inc/tsclient.h       |  1 +
 src/client/src/tscParseInsert.c | 16 ++++++++--------
 src/client/src/tscSQLParser.c   |  2 +-
 src/client/src/tscSql.c         | 11 +++++++----
 src/client/src/tscUtil.c        | 33 ++++++++++++++++++++++++++++++---
 src/inc/taoserror.h             |  1 +
 6 files changed, 48 insertions(+), 16 deletions(-)

diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index 2490e3d756..57a4cb29c1 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -458,6 +458,7 @@ bool tscResultsetFetchCompleted(TAOS_RES *result);
 char *tscGetErrorMsgPayload(SSqlCmd *pCmd);
 
 int32_t tscInvalidSQLErrMsg(char *msg, const char *additionalInfo, const char *sql);
+int32_t tscSQLSyntaxErrMsg(char* msg, const char* additionalInfo,  const char* sql);
 
 int32_t tscToSQLCmd(SSqlObj *pSql, struct SSqlInfo *pInfo);
 
diff --git a/src/client/src/tscParseInsert.c b/src/client/src/tscParseInsert.c
index 47bfe0fcdc..f214e91f45 100644
--- a/src/client/src/tscParseInsert.c
+++ b/src/client/src/tscParseInsert.c
@@ -180,7 +180,7 @@ int32_t tsParseOneColumnData(SSchema *pSchema, SStrToken *pToken, char *payload,
         } else if (strncasecmp(TSDB_DATA_NULL_STR_L, pToken->z, pToken->n) == 0) {
           *(uint8_t *)payload = TSDB_DATA_BOOL_NULL;
         } else {
-          return tscInvalidSQLErrMsg(msg, "invalid bool data", pToken->z);
+          return tscSQLSyntaxErrMsg(msg, "invalid bool data", pToken->z);
         }
       } else if (pToken->type == TK_INTEGER) {
         iv = strtoll(pToken->z, NULL, 10);
@@ -439,8 +439,8 @@ int tsParseOneRowData(char **str, STableDataBlocks *pDataBlocks, SSchema schema[
     int16_t type = sToken.type;
     if ((type != TK_NOW && type != TK_INTEGER && type != TK_STRING && type != TK_FLOAT && type != TK_BOOL &&
          type != TK_NULL && type != TK_HEX && type != TK_OCT && type != TK_BIN) || (sToken.n == 0) || (type == TK_RP)) {
-      tscInvalidSQLErrMsg(error, "invalid data or symbol", sToken.z);
-      *code = TSDB_CODE_TSC_INVALID_SQL;
+      tscSQLSyntaxErrMsg(error, "invalid data or symbol", sToken.z);
+      *code = TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
       return -1;
     }
 
@@ -472,7 +472,7 @@ int tsParseOneRowData(char **str, STableDataBlocks *pDataBlocks, SSchema schema[
     bool    isPrimaryKey = (colIndex == PRIMARYKEY_TIMESTAMP_COL_INDEX);
     int32_t ret = tsParseOneColumnData(pSchema, &sToken, start, error, str, isPrimaryKey, timePrec);
     if (ret != TSDB_CODE_SUCCESS) {
-      *code = TSDB_CODE_TSC_INVALID_SQL;
+      *code = TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
       return -1;  // NOTE: here 0 mean error!
     }
 
@@ -568,8 +568,8 @@ int tsParseValues(char **str, STableDataBlocks *pDataBlock, STableMeta *pTableMe
     sToken = tStrGetToken(*str, &index, false, 0, NULL);
     *str += index;
     if (sToken.n == 0 || sToken.type != TK_RP) {
-      tscInvalidSQLErrMsg(error, ") expected", *str);
-      *code = TSDB_CODE_TSC_INVALID_SQL;
+      tscSQLSyntaxErrMsg(error, ") expected", *str);
+      *code = TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
       return -1;
     }
 
@@ -578,7 +578,7 @@ int tsParseValues(char **str, STableDataBlocks *pDataBlock, STableMeta *pTableMe
 
   if (numOfRows <= 0) {
     strcpy(error, "no any data points");
-    *code = TSDB_CODE_TSC_INVALID_SQL;
+    *code = TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
     return -1;
   } else {
     return numOfRows;
@@ -943,7 +943,7 @@ static int32_t tscCheckIfCreateTable(char **sqlstr, SSqlObj *pSql) {
     sToken = tStrGetToken(sql, &index, false, 0, NULL);
     sql += index;
     if (sToken.n == 0 || sToken.type != TK_RP) {
-      return tscInvalidSQLErrMsg(pCmd->payload, ") expected", sToken.z);
+      return tscSQLSyntaxErrMsg(pCmd->payload, ") expected", sToken.z);
     }
 
     pCmd->payloadLen = sizeof(pTag->name) + sizeof(pTag->dataLen) + pTag->dataLen;
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 3b1b87edde..f27ce73f7f 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -190,7 +190,7 @@ int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
 
   int32_t code = TSDB_CODE_SUCCESS;
   if (!pInfo->valid) {
-    return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), pInfo->pzErrMsg);
+    return tscSQLSyntaxErrMsg(tscGetErrorMsgPayload(pCmd), NULL, pInfo->pzErrMsg);
   }
 
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetailSafely(pCmd, pCmd->clauseIndex);
diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index f63923e046..1af53d3645 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -597,11 +597,12 @@ int taos_errno(TAOS_RES *tres) {
 }
 
 /*
- * In case of invalid sql error, additional information is attached to explain
+ * In case of invalid sql/sql syntax error, additional information is attached to explain
  * why the sql is invalid
  */
 static bool hasAdditionalErrorInfo(int32_t code, SSqlCmd *pCmd) {
-  if (code != TSDB_CODE_TSC_INVALID_SQL) {
+  if (code != TSDB_CODE_TSC_INVALID_SQL
+      && code != TSDB_CODE_TSC_SQL_SYNTAX_ERROR) {
     return false;
   }
 
@@ -609,9 +610,11 @@ static bool hasAdditionalErrorInfo(int32_t code, SSqlCmd *pCmd) {
 
   char *z = NULL;
   if (len > 0) {
-    z = strstr(pCmd->payload, "invalid SQL");
+      z = strstr(pCmd->payload, "invalid SQL");
+      if (z == NULL) {
+        z = strstr(pCmd->payload, "syntax error");
+      }
   }
-
   return z != NULL;
 }
 
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 49f7c91397..92527c3ba4 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -2029,10 +2029,37 @@ bool tscIsUpdateQuery(SSqlObj* pSql) {
   return ((pCmd->command >= TSDB_SQL_INSERT && pCmd->command <= TSDB_SQL_DROP_DNODE) || TSDB_SQL_USE_DB == pCmd->command);
 }
 
+int32_t tscSQLSyntaxErrMsg(char* msg, const char* additionalInfo,  const char* sql) {
+  const char* msgFormat1 = "syntax error near \'%s\'";
+  const char* msgFormat2 = "syntax error near \'%s\' (%s)";
+  const char* msgFormat3 = "%s";
+
+  const char* prefix = "syntax error"; 
+  const int32_t BACKWARD_CHAR_STEP = 0;
+
+  if (sql == NULL) {
+    assert(additionalInfo != NULL);
+    sprintf(msg, msgFormat1, additionalInfo);
+    return TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
+  }
+
+  char buf[64] = {0};  // only extract part of sql string
+  strncpy(buf, (sql - BACKWARD_CHAR_STEP), tListLen(buf) - 1);
+
+  if (additionalInfo != NULL) {
+    sprintf(msg, msgFormat2, buf, additionalInfo);
+  } else {
+    const char* msgFormat = (0 == strncmp(sql, prefix, strlen(prefix))) ? msgFormat3 : msgFormat1; 
+    sprintf(msg, msgFormat, buf);
+  }
+
+  return TSDB_CODE_TSC_SQL_SYNTAX_ERROR;
+  
+}
 int32_t tscInvalidSQLErrMsg(char* msg, const char* additionalInfo, const char* sql) {
   const char* msgFormat1 = "invalid SQL: %s";
-  const char* msgFormat2 = "invalid SQL: syntax error near \"%s\" (%s)";
-  const char* msgFormat3 = "invalid SQL: syntax error near \"%s\"";
+  const char* msgFormat2 = "invalid SQL: \"%s\" (%s)";
+  const char* msgFormat3 = "invalid SQL: \"%s\"";
 
   const int32_t BACKWARD_CHAR_STEP = 0;
 
@@ -2258,4 +2285,4 @@ bool tscSetSqlOwner(SSqlObj* pSql) {
 void tscClearSqlOwner(SSqlObj* pSql) {
   assert(taosCheckPthreadValid(pSql->owner));
   atomic_store_64(&pSql->owner, 0);
-}
\ No newline at end of file
+}
diff --git a/src/inc/taoserror.h b/src/inc/taoserror.h
index 951c511022..d8e5c8f1d7 100644
--- a/src/inc/taoserror.h
+++ b/src/inc/taoserror.h
@@ -98,6 +98,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_TSC_ACTION_IN_PROGRESS,       0, 0x0212, "Action in
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_DISCONNECTED,             0, 0x0213, "Disconnected from service")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_NO_WRITE_AUTH,            0, 0x0214, "No write permission")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_CONN_KILLED,            0, 0x0215, "Connection killed")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_SQL_SYNTAX_ERROR,            0, 0x0216, "Syntax errr in SQL")
 
 // mnode
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_MSG_NOT_PROCESSED,        0, 0x0300, "Message not processed")

From 09eb6ed916e82002c30668ce003cf036159231ee Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Mon, 31 Aug 2020 05:41:22 +0000
Subject: [PATCH 25/69] TD-934

---
 src/client/src/tscUtil.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 92527c3ba4..cb810ac698 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -2058,8 +2058,8 @@ int32_t tscSQLSyntaxErrMsg(char* msg, const char* additionalInfo,  const char* s
 }
 int32_t tscInvalidSQLErrMsg(char* msg, const char* additionalInfo, const char* sql) {
   const char* msgFormat1 = "invalid SQL: %s";
-  const char* msgFormat2 = "invalid SQL: \"%s\" (%s)";
-  const char* msgFormat3 = "invalid SQL: \"%s\"";
+  const char* msgFormat2 = "invalid SQL: \'%s\' (%s)";
+  const char* msgFormat3 = "invalid SQL: \'%s\'";
 
   const int32_t BACKWARD_CHAR_STEP = 0;
 

From 03f81764761e1628d978a06e045b6ed47dbce5e2 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Mon, 31 Aug 2020 14:01:21 +0800
Subject: [PATCH 26/69] TD-1173 TD-1204

---
 tests/script/unique/account/usage.sim |  19 +++
 tests/test/c/CMakeLists.txt           |   7 +-
 tests/test/c/queryPerformance.c       | 167 ++++++++++++++++++++++++++
 3 files changed, 191 insertions(+), 2 deletions(-)
 create mode 100644 tests/test/c/queryPerformance.c

diff --git a/tests/script/unique/account/usage.sim b/tests/script/unique/account/usage.sim
index 8d611d6fb6..7fde365201 100644
--- a/tests/script/unique/account/usage.sim
+++ b/tests/script/unique/account/usage.sim
@@ -129,6 +129,25 @@ print no write auth
 sql_error insert into d1.t1 values(now + 7s, 2)
 sql_error insert into d1.t1 values(now + 8s, 2)
 
+print =============== step5
+sql alter account root pass "taosdata" tseries 10 storage 3600 streams 10 dbs 5 users 5 state all
+sleep 10000
+
+sql insert into d1.t1 values(now + 11s, 1)
+sql insert into d1.t1 values(now + 12s, 2)
+
+sql alter account root pass "taosdata" tseries 10 storage 3600 streams 10 dbs 5 users 5 state no
+sleep 10000
+print no write auth
+sql_error insert into d1.t1 values(now + 13s, 2)
+sql_error insert into d1.t1 values(now + 14s, 2)
+
+sql alter account root pass "taosdata" tseries 10 storage 3600 streams 10 dbs 5 users 5 state all
+sleep 10000
+print has write auth
+sql insert into d1.t1 values(now + 15s, 1)
+sql insert into d1.t1 values(now + 16s, 2)
+
 print =============== check grant
 sql_error create database d6
 
diff --git a/tests/test/c/CMakeLists.txt b/tests/test/c/CMakeLists.txt
index 9d11895104..536727100d 100644
--- a/tests/test/c/CMakeLists.txt
+++ b/tests/test/c/CMakeLists.txt
@@ -25,6 +25,9 @@ IF (TD_LINUX)
   #add_executable(createTablePerformance createTablePerformance.c)
   #target_link_libraries(createTablePerformance taos_static tutil common pthread)
 
-  add_executable(createNormalTable createNormalTable.c)
-  target_link_libraries(createNormalTable taos_static tutil common pthread)
+  #add_executable(createNormalTable createNormalTable.c)
+  #target_link_libraries(createNormalTable taos_static tutil common pthread)
+
+  #add_executable(queryPerformance queryPerformance.c)
+  #target_link_libraries(queryPerformance taos_static tutil common pthread)
 ENDIF()
diff --git a/tests/test/c/queryPerformance.c b/tests/test/c/queryPerformance.c
new file mode 100644
index 0000000000..5e7a4333de
--- /dev/null
+++ b/tests/test/c/queryPerformance.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _DEFAULT_SOURCE
+#include "os.h"
+#include "taos.h"
+#include "tulog.h"
+#include "ttimer.h"
+#include "tutil.h"
+#include "tglobal.h"
+
+#define MAX_RANDOM_POINTS 20000
+#define GREEN "\033[1;32m"
+#define NC "\033[0m"
+
+typedef struct {
+  int64_t   startTimeMs;
+  int64_t   endTimeMs;
+  int       threadIndex;
+  pthread_t thread;
+} SInfo;
+
+void *syncTest(void *param);
+void  shellParseArgument(int argc, char *argv[]);
+void  insertData();
+
+int64_t numOfThreads = 100;
+char sql[10240] = "show dnodes";
+int32_t loopTimes = 1000; 
+
+int main(int argc, char *argv[]) {
+  shellParseArgument(argc, argv);
+  taos_init();
+  insertData();
+}
+
+void insertData() {
+  struct timeval systemTime;
+  int64_t        st, et;
+
+  gettimeofday(&systemTime, NULL);
+  st = systemTime.tv_sec * 1000000 + systemTime.tv_usec;
+
+  pPrint("%" PRId64 " threads are spawned to query", numOfThreads);
+
+  pthread_attr_t thattr;
+  pthread_attr_init(&thattr);
+  pthread_attr_setdetachstate(&thattr, PTHREAD_CREATE_JOINABLE);
+  SInfo *pInfo = (SInfo *)malloc(sizeof(SInfo) * numOfThreads);
+
+  // Start threads to write
+  for (int i = 0; i < numOfThreads; ++i) {
+    pInfo[i].threadIndex = i;
+    pthread_create(&(pInfo[i].thread), &thattr, syncTest, (void *)(pInfo + i));
+  }
+
+  taosMsleep(300);
+  for (int i = 0; i < numOfThreads; i++) {
+    pthread_join(pInfo[i].thread, NULL);
+  }
+
+  gettimeofday(&systemTime, NULL);
+  et = systemTime.tv_sec * 1000000 + systemTime.tv_usec;
+  double mseconds = (et - st) / 1000.0;
+
+  int64_t request = loopTimes * numOfThreads;
+  float avg = mseconds / request;;
+  float qps = 1000 / avg * numOfThreads;
+  
+  pPrint(
+      "%sall threads:%ld finished, use %.1lf ms, qps:%f, avg:%f %s",
+      GREEN, numOfThreads, mseconds, qps, avg, NC);
+
+  pPrint("threads exit");
+
+  pthread_attr_destroy(&thattr);
+  free(pInfo);
+}
+
+void *syncTest(void *param) {
+  TAOS *         con;
+  SInfo *        pInfo = (SInfo *)param;
+  struct timeval systemTime;
+  
+  pPrint("thread:%d, start to run", pInfo->threadIndex);
+  char     fqdn[TSDB_FQDN_LEN];
+  uint16_t port;
+
+  taosGetFqdnPortFromEp(tsFirst, fqdn, &port);
+
+  con = taos_connect(fqdn, "root", "taosdata", NULL, port);
+  if (con == NULL) {
+    pError("index:%d, failed to connect to DB, reason:%s", pInfo->threadIndex, taos_errstr(con));
+    exit(1);
+  }
+
+  for (int i = 0; i < loopTimes; ++i) {
+    void *tres = taos_query(con, sql);
+
+    TAOS_ROW row = taos_fetch_row(tres);
+    if (row == NULL) {
+      taos_free_result(tres);
+      exit(0);
+    }
+
+    do {
+      row = taos_fetch_row(tres);
+    } while( row != NULL);
+
+    taos_free_result(tres);
+  }
+
+  gettimeofday(&systemTime, NULL);
+  
+  return NULL;
+}
+
+void printHelp() {
+  char indent[10] = "        ";
+  printf("Used to test the query performance of TDengine\n");
+
+  printf("%s%s\n", indent, "-c");
+  printf("%s%s%s%s\n", indent, indent, "Configuration directory, default is ", configDir);
+  printf("%s%s\n", indent, "-s");
+  printf("%s%s%s%s\n", indent, indent, "The sql to be executed, default is %s", sql);
+  printf("%s%s\n", indent, "-l");
+  printf("%s%s%s%d\n", indent, indent, "Loop Times per thread, default is ", loopTimes);
+  printf("%s%s\n", indent, "-t");
+  printf("%s%s%s%" PRId64 "\n", indent, indent, "Number of threads to be used, default is ", numOfThreads);
+  
+  exit(EXIT_SUCCESS);
+}
+
+void shellParseArgument(int argc, char *argv[]) {
+  for (int i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
+      printHelp();
+      exit(0);
+    } else if (strcmp(argv[i], "-c") == 0) {
+      strcpy(configDir, argv[++i]);
+    } else if (strcmp(argv[i], "-s") == 0) {
+      strcpy(sql, argv[++i]);
+    } else if (strcmp(argv[i], "-l") == 0) {
+      loopTimes = atoi(argv[++i]);
+    } else if (strcmp(argv[i], "-t") == 0) {
+      numOfThreads = atoi(argv[++i]);
+    } else {
+    }
+  }
+
+  pPrint("%ssql:%s%s", GREEN, sql, NC);
+  pPrint("%sloopTImes:%d%s", GREEN, loopTimes, NC);
+  pPrint("%snumOfThreads:%" PRId64 "%s", GREEN, numOfThreads, NC);
+   pPrint("%sstart to run%s", GREEN, NC);
+}

From baddf0ce08ab46da5caa0518561568393e4656af Mon Sep 17 00:00:00 2001
From: yihaoDeng <yhdeng@taosdata.com>
Date: Mon, 31 Aug 2020 06:59:50 +0000
Subject: [PATCH 27/69] TD-934

---
 tests/script/general/http/restful_full.sim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/script/general/http/restful_full.sim b/tests/script/general/http/restful_full.sim
index 88e7dece4c..b7f98e49e0 100644
--- a/tests/script/general/http/restful_full.sim
+++ b/tests/script/general/http/restful_full.sim
@@ -119,7 +119,7 @@ endi
 
 system_content curl -H 'Authorization: Taosd /KfeAzX/f9na8qdtNZmtONryp201ma04bEl8LcvLUd7a8qdtNZmtONryp201ma04'  -d '  used1' 127.0.0.1:7111/rest/sql
 print 17-> $system_content
-if $system_content != @{"status":"error","code":512,"desc":"invalid SQL: invalid SQL: syntax error near 'used1'"}@ then
+if $system_content != @{"status":"error","code":534,"desc":"Syntax errr in SQL"}@ then
   return -1
 endi
 
@@ -230,4 +230,4 @@ if $system_content != @{"status":"succ","head":["ts","speed"],"data":[["2017-12-
   return -1
 endi
 
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file
+system sh/exec.sh -n dnode1 -s stop -x SIGINT

From f3c92ad39b3151a6909e0f463eab34d8a9b7efff Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 31 Aug 2020 16:40:41 +0800
Subject: [PATCH 28/69] [td-1206]

---
 src/client/src/tscFunctionImpl.c |   18 +-
 src/query/inc/qPercentile.h      |   64 +-
 src/query/src/qPercentile.c      | 1219 ++++++++++++------------------
 3 files changed, 521 insertions(+), 780 deletions(-)

diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index bd4aa70ee4..7f6ce1ed0e 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -2422,24 +2422,14 @@ static void top_bottom_func_finalizer(SQLFunctionCtx *pCtx) {
 
 ///////////////////////////////////////////////////////////////////////////////////////////////
 static bool percentile_function_setup(SQLFunctionCtx *pCtx) {
-  const int32_t MAX_AVAILABLE_BUFFER_SIZE = 1 << 20;  // 1MB
-  const int32_t NUMOFCOLS = 1;
-  
   if (!function_setup(pCtx)) {
     return false;
   }
   
   SResultInfo *pResInfo = GET_RES_INFO(pCtx);
-  SSchema      field[1] = { { (uint8_t)pCtx->inputType, "dummyCol", 0, pCtx->inputBytes } };
-  
-  SColumnModel *pModel = createColumnModel(field, 1, 1000);
-  int32_t    orderIdx = 0;
-  
-  // tOrderDesc object
-  tOrderDescriptor *pDesc = tOrderDesCreate(&orderIdx, NUMOFCOLS, pModel, TSDB_ORDER_DESC);
-  
+
   ((SPercentileInfo *)(pResInfo->interResultBuf))->pMemBucket =
-      tMemBucketCreate(1024, MAX_AVAILABLE_BUFFER_SIZE, pCtx->inputBytes, pCtx->inputType, pDesc);
+      tMemBucketCreate(pCtx->inputBytes, pCtx->inputType);
   
   return true;
 }
@@ -2485,15 +2475,13 @@ static void percentile_finalizer(SQLFunctionCtx *pCtx) {
   SResultInfo *pResInfo = GET_RES_INFO(pCtx);
   tMemBucket * pMemBucket = ((SPercentileInfo *)pResInfo->interResultBuf)->pMemBucket;
   
-  if (pMemBucket->numOfElems > 0) {  // check for null
+  if (pMemBucket->total > 0) {  // check for null
     *(double *)pCtx->aOutputBuf = getPercentile(pMemBucket, v);
   } else {
     setNull(pCtx->aOutputBuf, pCtx->outputType, pCtx->outputBytes);
   }
   
-  tOrderDescDestroy(pMemBucket->pOrderDesc);
   tMemBucketDestroy(pMemBucket);
-  
   doFinalizer(pCtx);
 }
 
diff --git a/src/query/inc/qPercentile.h b/src/query/inc/qPercentile.h
index 52f666c338..0a52d4f205 100644
--- a/src/query/inc/qPercentile.h
+++ b/src/query/inc/qPercentile.h
@@ -17,6 +17,8 @@
 #define TDENGINE_QPERCENTILE_H
 
 #include "qExtbuffer.h"
+#include "qResultbuf.h"
+#include "qTsbuf.h"
 
 typedef struct MinMaxEntry {
   union {
@@ -31,47 +33,43 @@ typedef struct MinMaxEntry {
   };
 } MinMaxEntry;
 
-typedef struct tMemBucketSegment {
-  int32_t         numOfSlots;
-  MinMaxEntry *   pBoundingEntries;
-  tExtMemBuffer **pBuffer;
-} tMemBucketSegment;
+typedef struct {
+  int32_t   size;
+  int32_t   pageId;
+  tFilePage *data;
+} SSlotInfo;
+
+typedef struct tMemBucketSlot {
+  SSlotInfo      info;
+  MinMaxEntry    range;
+} tMemBucketSlot;
+
+struct tMemBucket;
+typedef int32_t (*__perc_hash_func_t)(struct tMemBucket *pBucket, const void *value);
 
 typedef struct tMemBucket {
-  int16_t numOfSegs;
-  int16_t nTotalSlots;
-  int16_t nSlotsOfSeg;
-  int16_t dataType;
-  
-  int16_t nElemSize;
-  int32_t numOfElems;
-  
-  int32_t nTotalBufferSize;
-  int32_t maxElemsCapacity;
-  
-  int32_t pageSize;
-  int16_t numOfTotalPages;
-  int16_t numOfAvailPages; /* remain available buffer pages */
-  
-  tMemBucketSegment *pSegs;
-  tOrderDescriptor * pOrderDesc;
-  
-  MinMaxEntry nRange;
-  
-  void (*HashFunc)(struct tMemBucket *pBucket, void *value, int16_t *segIdx, int16_t *slotIdx);
+  int16_t       numOfSlots;
+  int16_t       type;
+  int16_t       bytes;
+  int32_t       total;
+  int32_t       elemPerPage;   // number of elements for each object
+  int32_t       maxCapacity;   // maximum allowed number of elements that can be sort directly to get the result
+  int32_t       bufPageSize;   // disk page size
+  MinMaxEntry   range;           // value range
+  int32_t       times;         // count that has been checked for deciding the correct data value buckets.
+  __compar_fn_t comparFn;
+
+  tMemBucketSlot *pSlots;
+  SDiskbasedResultBuf *pBuffer;
+  __perc_hash_func_t hashFunc;
 } tMemBucket;
 
-tMemBucket *tMemBucketCreate(int32_t totalSlots, int32_t nBufferSize, int16_t nElemSize, int16_t dataType,
-                             tOrderDescriptor *pDesc);
+tMemBucket *tMemBucketCreate(int16_t nElemSize, int16_t dataType);
 
 void tMemBucketDestroy(tMemBucket *pBucket);
 
-void tMemBucketPut(tMemBucket *pBucket, void *data, int32_t numOfRows);
+void tMemBucketPut(tMemBucket *pBucket, const void *data, size_t size);
 
 double getPercentile(tMemBucket *pMemBucket, double percent);
 
-void tBucketIntHash(tMemBucket *pBucket, void *value, int16_t *segIdx, int16_t *slotIdx);
-
-void tBucketDoubleHash(tMemBucket *pBucket, void *value, int16_t *segIdx, int16_t *slotIdx);
-
 #endif  // TDENGINE_QPERCENTILE_H
diff --git a/src/query/src/qPercentile.c b/src/query/src/qPercentile.c
index 19775075fc..c6eb836c61 100644
--- a/src/query/src/qPercentile.c
+++ b/src/query/src/qPercentile.c
@@ -14,310 +14,291 @@
  */
 
 #include "qPercentile.h"
+#include "qResultbuf.h"
 #include "os.h"
 #include "queryLog.h"
 #include "taosdef.h"
-#include "taosmsg.h"
 #include "tulog.h"
+#include "tcompare.h"
 
-tExtMemBuffer *releaseBucketsExceptFor(tMemBucket *pMemBucket, int16_t segIdx, int16_t slotIdx) {
-  tExtMemBuffer *pBuffer = NULL;
-  
-  for (int32_t i = 0; i < pMemBucket->numOfSegs; ++i) {
-    tMemBucketSegment *pSeg = &pMemBucket->pSegs[i];
-    
-    for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-      if (i == segIdx && j == slotIdx) {
-        pBuffer = pSeg->pBuffer[j];
-      } else {
-        if (pSeg->pBuffer && pSeg->pBuffer[j]) {
-          pSeg->pBuffer[j] = destoryExtMemBuffer(pSeg->pBuffer[j]);
-        }
-      }
-    }
-  }
-  
-  return pBuffer;
+#define DEFAULT_NUM_OF_SLOT 1024
+
+int32_t getGroupId(int32_t numOfSlots, int32_t slotIndex, int32_t times) {
+  return (times * numOfSlots) + slotIndex;
 }
 
-static tFilePage *loadIntoBucketFromDisk(tMemBucket *pMemBucket, int32_t segIdx, int32_t slotIdx,
-                                         tOrderDescriptor *pDesc) {
-  // release all data in other slots
-  tExtMemBuffer *pMemBuffer = pMemBucket->pSegs[segIdx].pBuffer[slotIdx];
-  tFilePage *    buffer = (tFilePage *)calloc(1, pMemBuffer->nElemSize * pMemBuffer->numOfTotalElems + sizeof(tFilePage));
-  int32_t        oldCapacity = pDesc->pColumnModel->capacity;
-  pDesc->pColumnModel->capacity = pMemBuffer->numOfTotalElems;
-  
-  if (!tExtMemBufferIsAllDataInMem(pMemBuffer)) {
-    pMemBuffer = releaseBucketsExceptFor(pMemBucket, segIdx, slotIdx);
-    assert(pMemBuffer->numOfTotalElems > 0);
-    
-    // load data in disk to memory
-    tFilePage *pPage = (tFilePage *)calloc(1, pMemBuffer->pageSize);
-    
-    for (uint32_t i = 0; i < pMemBuffer->fileMeta.flushoutData.nLength; ++i) {
-      tFlushoutInfo *pFlushInfo = &pMemBuffer->fileMeta.flushoutData.pFlushoutInfo[i];
-      
-      int32_t ret = fseek(pMemBuffer->file, pFlushInfo->startPageId * pMemBuffer->pageSize, SEEK_SET);
-      UNUSED(ret);
-      
-      for (uint32_t j = 0; j < pFlushInfo->numOfPages; ++j) {
-        ret = (int32_t)fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
-        UNUSED(ret);
-        assert(pPage->num > 0);
-        
-        tColModelAppend(pDesc->pColumnModel, buffer, pPage->data, 0, (int32_t)pPage->num, (int32_t)pPage->num);
-        printf("id: %d  count: %" PRIu64 "\n", j, buffer->num);
-      }
-    }
-    taosTFree(pPage);
-    
-    assert(buffer->num == pMemBuffer->fileMeta.numOfElemsInFile);
+static tFilePage *loadDataFromFilePage(tMemBucket *pMemBucket, int32_t slotIdx) {
+  tFilePage *buffer = (tFilePage *)calloc(1, pMemBucket->bytes * pMemBucket->pSlots[slotIdx].info.size + sizeof(tFilePage));
+
+  int32_t groupId = getGroupId(pMemBucket->numOfSlots, slotIdx, pMemBucket->times);
+  SIDList list = getDataBufPagesIdList(pMemBucket->pBuffer, groupId);
+
+  int32_t offset = 0;
+  for(int32_t i = 0; i < list->size; ++i) {
+    SPageInfo* pgInfo = *(SPageInfo**) taosArrayGet(list, i);
+
+    tFilePage* pg = getResBufPage(pMemBucket->pBuffer, pgInfo->pageId);
+    memcpy(buffer->data + offset, pg->data, pg->num * pMemBucket->bytes);
+
+    offset += pg->num * pMemBucket->bytes;
   }
-  
-  // load data in pMemBuffer to buffer
-  tFilePagesItem *pListItem = pMemBuffer->pHead;
-  while (pListItem != NULL) {
-    tColModelAppend(pDesc->pColumnModel, buffer, pListItem->item.data, 0, (int32_t)pListItem->item.num,
-                   (int32_t)pListItem->item.num);
-    pListItem = pListItem->pNext;
-  }
-  
-  tColDataQSort(pDesc, (int32_t)buffer->num, 0, (int32_t)buffer->num - 1, buffer->data, TSDB_ORDER_ASC);
-  
-  pDesc->pColumnModel->capacity = oldCapacity;  // restore value
+
+  qsort(buffer->data, pMemBucket->pSlots[slotIdx].info.size, pMemBucket->bytes, pMemBucket->comparFn);
   return buffer;
 }
 
-double findOnlyResult(tMemBucket *pMemBucket) {
-  assert(pMemBucket->numOfElems == 1);
-  
-  for (int32_t i = 0; i < pMemBucket->numOfSegs; ++i) {
-    tMemBucketSegment *pSeg = &pMemBucket->pSegs[i];
-    if (pSeg->pBuffer) {
-      for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-        tExtMemBuffer *pBuffer = pSeg->pBuffer[j];
-        if (pBuffer) {
-          assert(pBuffer->numOfTotalElems == 1);
-          tFilePage *pPage = &pBuffer->pHead->item;
-          if (pBuffer->numOfElemsInBuffer == 1) {
-            switch (pMemBucket->dataType) {
-              case TSDB_DATA_TYPE_INT:
-                return *(int32_t *)pPage->data;
-              case TSDB_DATA_TYPE_SMALLINT:
-                return *(int16_t *)pPage->data;
-              case TSDB_DATA_TYPE_TINYINT:
-                return *(int8_t *)pPage->data;
-              case TSDB_DATA_TYPE_BIGINT:
-                return (double)(*(int64_t *)pPage->data);
-              case TSDB_DATA_TYPE_DOUBLE: {
-                double dv = GET_DOUBLE_VAL(pPage->data);
-                //return *(double *)pPage->data;
-                return dv;
-              }
-              case TSDB_DATA_TYPE_FLOAT: {
-                float fv = GET_FLOAT_VAL(pPage->data);
-                //return *(float *)pPage->data;
-                return fv;
-              }
-              default:
-                return 0;
-            }
-          }
-        }
-      }
-    }
-  }
-  return 0;
-}
-
-void tBucketBigIntHash(tMemBucket *pBucket, void *value, int16_t *segIdx, int16_t *slotIdx) {
-  int64_t v = *(int64_t *)value;
-
-  if (pBucket->nRange.i64MaxVal == INT64_MIN) {
-    if (v >= 0) {
-      *segIdx = ((v >> (64 - 9)) >> 6) + 8;
-      *slotIdx = (v >> (64 - 9)) & 0x3F;
-    } else {  // v<0
-      *segIdx = ((-v) >> (64 - 9)) >> 6;
-      *slotIdx = ((-v) >> (64 - 9)) & 0x3F;
-      *segIdx = 7 - (*segIdx);
-    }
-  } else {
-    // todo hash for bigint and float and double
-    int64_t span = pBucket->nRange.i64MaxVal - pBucket->nRange.i64MinVal;
-    if (span < pBucket->nTotalSlots) {
-      int32_t delta = (int32_t)(v - pBucket->nRange.i64MinVal);
-      *segIdx = delta / pBucket->nSlotsOfSeg;
-      *slotIdx = delta % pBucket->nSlotsOfSeg;
-    } else {
-      double x = (double)span / pBucket->nTotalSlots;
-      double posx = (v - pBucket->nRange.i64MinVal) / x;
-      if (v == pBucket->nRange.i64MaxVal) {
-        posx -= 1;
-      }
-
-      *segIdx = ((int32_t)posx) / pBucket->nSlotsOfSeg;
-      *slotIdx = ((int32_t)posx) % pBucket->nSlotsOfSeg;
-    }
-  }
-}
-
-// todo refactor to more generic
-void tBucketIntHash(tMemBucket *pBucket, void *value, int16_t *segIdx, int16_t *slotIdx) {
-  int32_t v = *(int32_t *)value;
-
-  if (pBucket->nRange.iMaxVal == INT32_MIN) {
-    /*
-     * taking negative integer into consideration,
-     * there is only half of pBucket->segs available for non-negative integer
-     */
-    //        int32_t numOfSlots = pBucket->nTotalSlots>>1;
-    //        int32_t bits = bitsOfNumber(numOfSlots)-1;
-
-    if (v >= 0) {
-      *segIdx = ((v >> (32 - 9)) >> 6) + 8;
-      *slotIdx = (v >> (32 - 9)) & 0x3F;
-    } else {  // v<0
-      *segIdx = ((-v) >> (32 - 9)) >> 6;
-      *slotIdx = ((-v) >> (32 - 9)) & 0x3F;
-      *segIdx = 7 - (*segIdx);
-    }
-  } else {
-    // divide a range of [iMinVal, iMaxVal] into 1024 buckets
-    int32_t span = pBucket->nRange.iMaxVal - pBucket->nRange.iMinVal;
-    if (span < pBucket->nTotalSlots) {
-      int32_t delta = v - pBucket->nRange.iMinVal;
-      *segIdx = delta / pBucket->nSlotsOfSeg;
-      *slotIdx = delta % pBucket->nSlotsOfSeg;
-    } else {
-      double x = (double)span / pBucket->nTotalSlots;
-      double posx = (v - pBucket->nRange.iMinVal) / x;
-      if (v == pBucket->nRange.iMaxVal) {
-        posx -= 1;
-      }
-      *segIdx = ((int32_t)posx) / pBucket->nSlotsOfSeg;
-      *slotIdx = ((int32_t)posx) % pBucket->nSlotsOfSeg;
-    }
-  }
-}
-
-void tBucketDoubleHash(tMemBucket *pBucket, void *value, int16_t *segIdx, int16_t *slotIdx) {
-  // double v = *(double *)value;
-  double v = GET_DOUBLE_VAL(value);
-
-  if (pBucket->nRange.dMinVal == DBL_MAX) {
-    /*
-     * taking negative integer into consideration,
-     * there is only half of pBucket->segs available for non-negative integer
-     */
-    double x = DBL_MAX / (pBucket->nTotalSlots >> 1);
-    double posx = (v + DBL_MAX) / x;
-    *segIdx = ((int32_t)posx) / pBucket->nSlotsOfSeg;
-    *slotIdx = ((int32_t)posx) % pBucket->nSlotsOfSeg;
-  } else {
-    // divide a range of [dMinVal, dMaxVal] into 1024 buckets
-    double span = pBucket->nRange.dMaxVal - pBucket->nRange.dMinVal;
-    if (span < pBucket->nTotalSlots) {
-      int32_t delta = (int32_t)(v - pBucket->nRange.dMinVal);
-      *segIdx = delta / pBucket->nSlotsOfSeg;
-      *slotIdx = delta % pBucket->nSlotsOfSeg;
-    } else {
-      double x = span / pBucket->nTotalSlots;
-      double posx = (v - pBucket->nRange.dMinVal) / x;
-      if (v == pBucket->nRange.dMaxVal) {
-        posx -= 1;
-      }
-      *segIdx = ((int32_t)posx) / pBucket->nSlotsOfSeg;
-      *slotIdx = ((int32_t)posx) % pBucket->nSlotsOfSeg;
-    }
-
-    if (*segIdx < 0 || *segIdx > 16 || *slotIdx < 0 || *slotIdx > 64) {
-      uError("error in hash process. segment is: %d, slot id is: %d\n", *segIdx, *slotIdx);
-    }
-  }
-}
-
-tMemBucket *tMemBucketCreate(int32_t totalSlots, int32_t nBufferSize, int16_t nElemSize, int16_t dataType,
-                             tOrderDescriptor *pDesc) {
-  tMemBucket *pBucket = (tMemBucket *)malloc(sizeof(tMemBucket));
-  pBucket->nTotalSlots = totalSlots;
-  pBucket->nSlotsOfSeg = 1 << 6;  // 64 Segments, 16 slots each seg.
-  pBucket->dataType = dataType;
-  pBucket->nElemSize = nElemSize;
-  pBucket->pageSize = DEFAULT_PAGE_SIZE;
-
-  pBucket->numOfElems = 0;
-  pBucket->numOfSegs = pBucket->nTotalSlots / pBucket->nSlotsOfSeg;
-
-  pBucket->nTotalBufferSize = nBufferSize;
-
-  pBucket->maxElemsCapacity = pBucket->nTotalBufferSize / pBucket->nElemSize;
-
-  pBucket->numOfTotalPages = pBucket->nTotalBufferSize / pBucket->pageSize;
-  pBucket->numOfAvailPages = pBucket->numOfTotalPages;
-
-  pBucket->pSegs = NULL;
-  pBucket->pOrderDesc = pDesc;
-
-  switch (pBucket->dataType) {
+static void resetBoundingBox(MinMaxEntry* range, int32_t type) {
+  switch (type) {
+    case TSDB_DATA_TYPE_BIGINT: {
+      range->i64MaxVal = INT64_MIN;
+      range->i64MinVal = INT64_MAX;
+      break;
+    };
     case TSDB_DATA_TYPE_INT:
     case TSDB_DATA_TYPE_SMALLINT:
     case TSDB_DATA_TYPE_TINYINT: {
-      pBucket->nRange.iMinVal = INT32_MAX;
-      pBucket->nRange.iMaxVal = INT32_MIN;
-      pBucket->HashFunc = tBucketIntHash;
+      range->iMaxVal = INT32_MIN;
+      range->iMinVal = INT32_MAX;
       break;
     };
     case TSDB_DATA_TYPE_DOUBLE:
     case TSDB_DATA_TYPE_FLOAT: {
-      pBucket->nRange.dMinVal = DBL_MAX;
-      pBucket->nRange.dMaxVal = -DBL_MAX;
-      pBucket->HashFunc = tBucketDoubleHash;
+      range->dMaxVal = -DBL_MAX;
+      range->dMinVal = DBL_MAX;
       break;
-    };
-    case TSDB_DATA_TYPE_BIGINT: {
-      pBucket->nRange.i64MinVal = INT64_MAX;
-      pBucket->nRange.i64MaxVal = INT64_MIN;
-      pBucket->HashFunc = tBucketBigIntHash;
-      break;
-    };
-    default: {
-      uError("MemBucket:%p,not support data type %d,failed", pBucket, pBucket->dataType);
-      taosTFree(pBucket);
-      return NULL;
+    }
+  }
+}
+
+static void resetPosInfo(SSlotInfo* pInfo) {
+  pInfo->size   = 0;
+  pInfo->pageId = -1;
+  pInfo->data   = NULL;
+}
+
+double findOnlyResult(tMemBucket *pMemBucket) {
+  assert(pMemBucket->total == 1);
+
+  for (int32_t i = 0; i < pMemBucket->numOfSlots; ++i) {
+    tMemBucketSlot *pSlot = &pMemBucket->pSlots[i];
+    if (pSlot->info.size  == 0) {
+      continue;
+    }
+
+    int32_t groupId = getGroupId(pMemBucket->numOfSlots, i, pMemBucket->times);
+    SIDList list = getDataBufPagesIdList(pMemBucket->pBuffer, groupId);
+    assert(list->size == 1);
+
+    SPageInfo* pgInfo = (SPageInfo*) taosArrayGetP(list, 0);
+    tFilePage* pPage = getResBufPage(pMemBucket->pBuffer, pgInfo->pageId);
+    assert(pPage->num == 1);
+
+    switch (pMemBucket->type) {
+      case TSDB_DATA_TYPE_INT:
+        return *(int32_t *)pPage->data;
+      case TSDB_DATA_TYPE_SMALLINT:
+        return *(int16_t *)pPage->data;
+      case TSDB_DATA_TYPE_TINYINT:
+        return *(int8_t *)pPage->data;
+      case TSDB_DATA_TYPE_BIGINT:
+        return (double)(*(int64_t *)pPage->data);
+      case TSDB_DATA_TYPE_DOUBLE: {
+        double dv = GET_DOUBLE_VAL(pPage->data);
+        return dv;
+      }
+      case TSDB_DATA_TYPE_FLOAT: {
+        float fv = GET_FLOAT_VAL(pPage->data);
+        return fv;
+      }
+      default:
+        return 0;
     }
   }
 
-  int32_t numOfCols = pDesc->pColumnModel->numOfCols;
-  if (numOfCols != 1) {
-    uError("MemBucket:%p,only consecutive data is allowed,invalid numOfCols:%d", pBucket, numOfCols);
-    taosTFree(pBucket);
+  return 0;
+}
+
+int32_t tBucketBigIntHash(tMemBucket *pBucket, const void *value) {
+  int64_t v = *(int64_t *)value;
+  int32_t index = -1;
+
+  int32_t halfSlot = pBucket->numOfSlots >> 1;
+//  int32_t bits = 32;//bitsOfNumber(pBucket->numOfSlots) - 1;
+
+  if (pBucket->range.i64MaxVal == INT64_MIN) {
+    if (v >= 0) {
+      index = (v >> (64 - 9)) + halfSlot;
+    } else {  // v<0
+      index = ((-v) >> (64 - 9));
+      index = -index + (halfSlot - 1);
+    }
+
+    return index;
+  } else {
+    // todo hash for bigint and float and double
+    int64_t span = pBucket->range.i64MaxVal - pBucket->range.i64MinVal;
+    if (span < pBucket->numOfSlots) {
+      int32_t delta = (int32_t)(v - pBucket->range.i64MinVal);
+      index = delta % pBucket->numOfSlots;
+    } else {
+      double slotSpan = (double)span / pBucket->numOfSlots;
+      index = (v - pBucket->range.i64MinVal) / slotSpan;
+      if (v == pBucket->range.i64MaxVal) {
+        index -= 1;
+      }
+    }
+
+    return index;
+  }
+}
+
+// todo refactor to more generic
+int32_t tBucketIntHash(tMemBucket *pBucket, const void *value) {
+  int32_t v = *(int32_t *)value;
+  int32_t index = -1;
+
+  if (pBucket->range.iMaxVal == INT32_MIN) {
+    /*
+     * taking negative integer into consideration,
+     * there is only half of pBucket->segs available for non-negative integer
+     */
+    int32_t halfSlot = pBucket->numOfSlots >> 1;
+    int32_t bits = 32;//bitsOfNumber(pBucket->numOfSlots) - 1;
+
+    if (v >= 0) {
+      index = (v >> (bits - 9)) + halfSlot;
+    } else {  // v < 0
+      index = ((-v) >> (32 - 9));
+      index = -index + (halfSlot - 1);
+    }
+
+    return index;
+  } else {
+    // divide a range of [iMinVal, iMaxVal] into 1024 buckets
+    int32_t span = pBucket->range.iMaxVal - pBucket->range.iMinVal;
+    if (span < pBucket->numOfSlots) {
+      int32_t delta = v - pBucket->range.iMinVal;
+      index = (delta % pBucket->numOfSlots);
+    } else {
+      double slotSpan = (double)span / pBucket->numOfSlots;
+      index = (v - pBucket->range.iMinVal) / slotSpan;
+      if (v == pBucket->range.iMaxVal) {
+        index -= 1;
+      }
+    }
+
+    return index;
+  }
+}
+
+int32_t tBucketDoubleHash(tMemBucket *pBucket, const void *value) {
+  double v = GET_DOUBLE_VAL(value);
+  int32_t index = -1;
+
+  if (pBucket->range.dMinVal == DBL_MAX) {
+    /*
+     * taking negative integer into consideration,
+     * there is only half of pBucket->segs available for non-negative integer
+     */
+    double x = DBL_MAX / (pBucket->numOfSlots >> 1);
+    double posx = (v + DBL_MAX) / x;
+    return ((int32_t)posx) % pBucket->numOfSlots;
+  } else {
+    // divide a range of [dMinVal, dMaxVal] into 1024 buckets
+    double span = pBucket->range.dMaxVal - pBucket->range.dMinVal;
+    if (span < pBucket->numOfSlots) {
+      int32_t delta = (int32_t)(v - pBucket->range.dMinVal);
+      index = (delta % pBucket->numOfSlots);
+    } else {
+      double slotSpan = span / pBucket->numOfSlots;
+      index = (v - pBucket->range.dMinVal) / slotSpan;
+      if (v == pBucket->range.dMaxVal) {
+        index -= 1;
+      }
+    }
+
+    if (index < 0 || index > pBucket->numOfSlots) {
+      uError("error in hash process. slot id: %d", index);
+    }
+
+    return index;
+  }
+}
+
+static __perc_hash_func_t getHashFunc(int32_t type) {
+  switch (type) {
+    case TSDB_DATA_TYPE_INT:
+    case TSDB_DATA_TYPE_SMALLINT:
+    case TSDB_DATA_TYPE_TINYINT: {
+      return tBucketIntHash;
+    };
+
+    case TSDB_DATA_TYPE_DOUBLE:
+    case TSDB_DATA_TYPE_FLOAT: {
+      return tBucketDoubleHash;
+    };
+
+    case TSDB_DATA_TYPE_BIGINT: {
+      return tBucketBigIntHash;
+    };
+
+    default: {
+      return NULL;
+    }
+  }
+}
+
+static void resetSlotInfo(tMemBucket* pBucket) {
+  for (int32_t i = 0; i < pBucket->numOfSlots; ++i) {
+    tMemBucketSlot* pSlot = &pBucket->pSlots[i];
+
+    resetBoundingBox(&pSlot->range, pBucket->type);
+    resetPosInfo(&pSlot->info);
+  }
+}
+
+tMemBucket *tMemBucketCreate(int16_t nElemSize, int16_t dataType) {
+  tMemBucket *pBucket = (tMemBucket *)calloc(1, sizeof(tMemBucket));
+  if (pBucket == NULL) {
     return NULL;
   }
 
-  SSchema* pSchema = getColumnModelSchema(pDesc->pColumnModel, 0);
-  if (pSchema->type != dataType) {
-    uError("MemBucket:%p,data type is not consistent,%d in schema, %d in param", pBucket, pSchema->type, dataType);
-    taosTFree(pBucket);
+  pBucket->numOfSlots = DEFAULT_NUM_OF_SLOT;
+  pBucket->bufPageSize = DEFAULT_PAGE_SIZE * 4;   // 4k per page
+
+  pBucket->type  = dataType;
+  pBucket->bytes = nElemSize;
+  pBucket->total = 0;
+  pBucket->times = 1;
+
+  pBucket->maxCapacity = 200000;
+
+  pBucket->elemPerPage = (pBucket->bufPageSize - sizeof(tFilePage))/pBucket->bytes;
+  pBucket->comparFn = getKeyComparFunc(pBucket->type);
+  resetBoundingBox(&pBucket->range, pBucket->type);
+
+  pBucket->hashFunc = getHashFunc(pBucket->type);
+  if (pBucket->hashFunc == NULL) {
+    uError("MemBucket:%p, not support data type %d, failed", pBucket, pBucket->type);
+    free(pBucket);
     return NULL;
   }
 
-  if (pBucket->numOfTotalPages < pBucket->nTotalSlots) {
-    uWarn("MemBucket:%p,total buffer pages %d are not enough for all slots", pBucket, pBucket->numOfTotalPages);
+  pBucket->pSlots = (tMemBucketSlot *)calloc(pBucket->numOfSlots, sizeof(tMemBucketSlot));
+  if (pBucket->pSlots == NULL) {
+    free(pBucket);
+    return NULL;
   }
 
-  pBucket->pSegs = (tMemBucketSegment *)malloc(pBucket->numOfSegs * sizeof(tMemBucketSegment));
+  resetSlotInfo(pBucket);
 
-  for (int32_t i = 0; i < pBucket->numOfSegs; ++i) {
-    pBucket->pSegs[i].numOfSlots = pBucket->nSlotsOfSeg;
-    pBucket->pSegs[i].pBuffer = NULL;
-    pBucket->pSegs[i].pBoundingEntries = NULL;
+  int32_t ret = createDiskbasedResultBuffer(&pBucket->pBuffer, pBucket->bytes, pBucket->bufPageSize, pBucket->bufPageSize * 512, NULL);
+  if (ret != TSDB_CODE_SUCCESS) {
+    tMemBucketDestroy(pBucket);
+    return NULL;
   }
-
-  uDebug("MemBucket:%p,created,buffer size:%ld,elem size:%d", pBucket, pBucket->numOfTotalPages * DEFAULT_PAGE_SIZE,
-         pBucket->nElemSize);
-
+  
+  uDebug("MemBucket:%p, elem size:%d", pBucket, pBucket->bytes);
   return pBucket;
 }
 
@@ -326,81 +307,11 @@ void tMemBucketDestroy(tMemBucket *pBucket) {
     return;
   }
 
-  if (pBucket->pSegs) {
-    for (int32_t i = 0; i < pBucket->numOfSegs; ++i) {
-      tMemBucketSegment *pSeg = &(pBucket->pSegs[i]);
-      taosTFree(pSeg->pBoundingEntries);
-
-      if (pSeg->pBuffer == NULL || pSeg->numOfSlots == 0) {
-        continue;
-      }
-
-      for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-        if (pSeg->pBuffer[j] != NULL) {
-          pSeg->pBuffer[j] = destoryExtMemBuffer(pSeg->pBuffer[j]);
-        }
-      }
-      taosTFree(pSeg->pBuffer);
-    }
-  }
-
-  taosTFree(pBucket->pSegs);
+  destroyResultBuf(pBucket->pBuffer);
+  taosTFree(pBucket->pSlots);
   taosTFree(pBucket);
 }
 
-/*
- * find the slots which accounts for largest proportion of total in-memory buffer
- */
-static void tBucketGetMaxMemSlot(tMemBucket *pBucket, int16_t *segIdx, int16_t *slotIdx) {
-  *segIdx = -1;
-  *slotIdx = -1;
-
-  int32_t val = 0;
-  for (int32_t k = 0; k < pBucket->numOfSegs; ++k) {
-    tMemBucketSegment *pSeg = &pBucket->pSegs[k];
-    for (int32_t i = 0; i < pSeg->numOfSlots; ++i) {
-      if (pSeg->pBuffer == NULL || pSeg->pBuffer[i] == NULL) {
-        continue;
-      }
-
-      if (val < pSeg->pBuffer[i]->numOfInMemPages) {
-        val = pSeg->pBuffer[i]->numOfInMemPages;
-        *segIdx = k;
-        *slotIdx = i;
-      }
-    }
-  }
-}
-
-static void resetBoundingBox(tMemBucketSegment *pSeg, int32_t type) {
-  switch (type) {
-    case TSDB_DATA_TYPE_BIGINT: {
-      for (int32_t i = 0; i < pSeg->numOfSlots; ++i) {
-        pSeg->pBoundingEntries[i].i64MaxVal = INT64_MIN;
-        pSeg->pBoundingEntries[i].i64MinVal = INT64_MAX;
-      }
-      break;
-    };
-    case TSDB_DATA_TYPE_INT:
-    case TSDB_DATA_TYPE_SMALLINT:
-    case TSDB_DATA_TYPE_TINYINT: {
-      for (int32_t i = 0; i < pSeg->numOfSlots; ++i) {
-        pSeg->pBoundingEntries[i].iMaxVal = INT32_MIN;
-        pSeg->pBoundingEntries[i].iMinVal = INT32_MAX;
-      }
-      break;
-    };
-    case TSDB_DATA_TYPE_DOUBLE:
-    case TSDB_DATA_TYPE_FLOAT: {
-      for (int32_t i = 0; i < pSeg->numOfSlots; ++i) {
-        pSeg->pBoundingEntries[i].dMaxVal = -DBL_MAX;
-        pSeg->pBoundingEntries[i].dMinVal = DBL_MAX;
-      }
-      break;
-    }
-  }
-}
-
 void tMemBucketUpdateBoundingBox(MinMaxEntry *r, char *data, int32_t dataType) {
   switch (dataType) {
     case TSDB_DATA_TYPE_INT: {
@@ -461,7 +372,6 @@ void tMemBucketUpdateBoundingBox(MinMaxEntry *r, char *data, int32_t dataType) {
       break;
     };
     case TSDB_DATA_TYPE_FLOAT: {
-      // double val = *(float *)data;
       double val = GET_FLOAT_VAL(data);
 
       if (r->dMinVal > val) {
@@ -478,171 +388,95 @@ void tMemBucketUpdateBoundingBox(MinMaxEntry *r, char *data, int32_t dataType) {
 }
 
 /*
- * in memory bucket, we only accept the simple data consecutive put in a row/column
- * no column-model in this case.
+ * in memory bucket, we only accept data array list
  */
-void tMemBucketPut(tMemBucket *pBucket, void *data, int32_t numOfRows) {
-  pBucket->numOfElems += numOfRows;
-  int16_t segIdx = 0, slotIdx = 0;
+void tMemBucketPut(tMemBucket *pBucket, const void *data, size_t size) {
+  assert(pBucket != NULL && data != NULL && size > 0);
+  pBucket->total += size;
 
-  for (int32_t i = 0; i < numOfRows; ++i) {
-    char *d = (char *)data + i * tDataTypeDesc[pBucket->dataType].nSize;
+  int32_t bytes = pBucket->bytes;
 
-    switch (pBucket->dataType) {
-      case TSDB_DATA_TYPE_SMALLINT: {
-        int32_t val = *(int16_t *)d;
-        (pBucket->HashFunc)(pBucket, &val, &segIdx, &slotIdx);
-        break;
-      }
-      case TSDB_DATA_TYPE_TINYINT: {
-        int32_t val = *(int8_t *)d;
-        (pBucket->HashFunc)(pBucket, &val, &segIdx, &slotIdx);
-        break;
-      }
-      case TSDB_DATA_TYPE_INT: {
-        int32_t val = *(int32_t *)d;
-        (pBucket->HashFunc)(pBucket, &val, &segIdx, &slotIdx);
-        break;
-      }
-      case TSDB_DATA_TYPE_BIGINT: {
-        int64_t val = *(int64_t *)d;
-        (pBucket->HashFunc)(pBucket, &val, &segIdx, &slotIdx);
-        break;
-      }
-      case TSDB_DATA_TYPE_DOUBLE: {
-        // double val = *(double *)d;
-        double val = GET_DOUBLE_VAL(d);
-        (pBucket->HashFunc)(pBucket, &val, &segIdx, &slotIdx);
-        break;
-      }
-      case TSDB_DATA_TYPE_FLOAT: {
-        // double val = *(float *)d;
-        double val = GET_FLOAT_VAL(d);
-        (pBucket->HashFunc)(pBucket, &val, &segIdx, &slotIdx);
-        break;
-      }
-    }
+  for (int32_t i = 0; i < size; ++i) {
+    char *d = (char *) data + i * bytes;
 
-    tMemBucketSegment *pSeg = &pBucket->pSegs[segIdx];
-    if (pSeg->pBoundingEntries == NULL) {
-      pSeg->pBoundingEntries = (MinMaxEntry *)malloc(sizeof(MinMaxEntry) * pBucket->nSlotsOfSeg);
-      resetBoundingBox(pSeg, pBucket->dataType);
-    }
+    int32_t slotIdx = (pBucket->hashFunc)(pBucket, d);
+    assert(slotIdx >= 0);
 
-    if (pSeg->pBuffer == NULL) {
-      pSeg->pBuffer = (tExtMemBuffer **)calloc(pBucket->nSlotsOfSeg, sizeof(void *));
-    }
-
-    if (pSeg->pBuffer[slotIdx] == NULL) {
-      pSeg->pBuffer[slotIdx] = createExtMemBuffer(pBucket->numOfTotalPages * pBucket->pageSize, pBucket->nElemSize,
-                                                  pBucket->pageSize, pBucket->pOrderDesc->pColumnModel);
-      pSeg->pBuffer[slotIdx]->flushModel = SINGLE_APPEND_MODEL;
-      pBucket->pOrderDesc->pColumnModel->capacity = pSeg->pBuffer[slotIdx]->numOfElemsPerPage;
-    }
-
-    tMemBucketUpdateBoundingBox(&pSeg->pBoundingEntries[slotIdx], d, pBucket->dataType);
+    tMemBucketSlot *pSlot = &pBucket->pSlots[slotIdx];
+    tMemBucketUpdateBoundingBox(&pSlot->range, d, pBucket->type);
 
     // ensure available memory pages to allocate
-    int16_t cseg = 0, cslot = 0;
-    if (pBucket->numOfAvailPages == 0) {
-      uDebug("MemBucket:%p,max avail size:%d, no avail memory pages,", pBucket, pBucket->numOfTotalPages);
+    int32_t groupId = getGroupId(pBucket->numOfSlots, slotIdx, pBucket->times);
+    int32_t pageId = -1;
 
-      tBucketGetMaxMemSlot(pBucket, &cseg, &cslot);
-      if (cseg == -1 || cslot == -1) {
-        uError("MemBucket:%p,failed to find appropriated avail buffer", pBucket);
-        return;
+    if (pSlot->info.data == NULL || pSlot->info.data->num >= pBucket->elemPerPage) {
+      if (pSlot->info.data != NULL) {
+        assert(pSlot->info.data->num >= pBucket->elemPerPage && pSlot->info.size > 0);
+
+        // keep the pointer in memory
+        releaseResBufPage(pBucket->pBuffer, pSlot->info.data);
+        pSlot->info.data = NULL;
       }
 
-      if (cseg != segIdx || cslot != slotIdx) {
-        pBucket->numOfAvailPages += pBucket->pSegs[cseg].pBuffer[cslot]->numOfInMemPages;
-
-        int32_t avail = pBucket->pSegs[cseg].pBuffer[cslot]->numOfInMemPages;
-        UNUSED(avail);
-        tExtMemBufferFlush(pBucket->pSegs[cseg].pBuffer[cslot]);
-
-        uDebug("MemBucket:%p,seg:%d,slot:%d flushed to disk,new avail pages:%d", pBucket, cseg, cslot,
-               pBucket->numOfAvailPages);
-      } else {
-        uDebug("MemBucket:%p,failed to choose slot to flush to disk seg:%d,slot:%d", pBucket, cseg, cslot);
-      }
+      pSlot->info.data = getNewDataBuf(pBucket->pBuffer, groupId, &pageId);
+      pSlot->info.pageId = pageId;
     }
-    int16_t consumedPgs = pSeg->pBuffer[slotIdx]->numOfInMemPages;
 
-    int16_t newPgs = tExtMemBufferPut(pSeg->pBuffer[slotIdx], d, 1);
-    /*
-     * trigger 1. page re-allocation, to reduce the available pages
-     *         2. page flushout, to increase the available pages
-     */
-    pBucket->numOfAvailPages += (consumedPgs - newPgs);
+    memcpy(pSlot->info.data->data + pSlot->info.data->num * pBucket->bytes, d, pBucket->bytes);
+
+    pSlot->info.data->num += 1;
+    pSlot->info.size += 1;
   }
 }
 
-void releaseBucket(tMemBucket *pMemBucket, int32_t segIdx, int32_t slotIdx) {
-  if (segIdx < 0 || segIdx > pMemBucket->numOfSegs || slotIdx < 0) {
-    return;
-  }
-
-  tMemBucketSegment *pSeg = &pMemBucket->pSegs[segIdx];
-  if (slotIdx < 0 || slotIdx >= pSeg->numOfSlots || pSeg->pBuffer[slotIdx] == NULL) {
-    return;
-  }
-
-  pSeg->pBuffer[slotIdx] = destoryExtMemBuffer(pSeg->pBuffer[slotIdx]);
-}
-
 ////////////////////////////////////////////////////////////////////////////////////////////
 static void findMaxMinValue(tMemBucket *pMemBucket, double *maxVal, double *minVal) {
   *minVal = DBL_MAX;
   *maxVal = -DBL_MAX;
 
-  for (int32_t i = 0; i < pMemBucket->numOfSegs; ++i) {
-    tMemBucketSegment *pSeg = &pMemBucket->pSegs[i];
-    if (pSeg->pBuffer == NULL) {
+  for (int32_t i = 0; i < pMemBucket->numOfSlots; ++i) {
+    tMemBucketSlot *pSlot = &pMemBucket->pSlots[i];
+    if (pSlot->info.size == 0) {
       continue;
     }
-    switch (pMemBucket->dataType) {
+
+    switch (pMemBucket->type) {
       case TSDB_DATA_TYPE_INT:
       case TSDB_DATA_TYPE_SMALLINT:
       case TSDB_DATA_TYPE_TINYINT: {
-        for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-          double minv = pSeg->pBoundingEntries[j].iMinVal;
-          double maxv = pSeg->pBoundingEntries[j].iMaxVal;
+        double minv = pSlot->range.iMinVal;
+        double maxv = pSlot->range.iMaxVal;
 
-          if (*minVal > minv) {
-            *minVal = minv;
-          }
-          if (*maxVal < maxv) {
-            *maxVal = maxv;
-          }
+        if (*minVal > minv) {
+          *minVal = minv;
+        }
+        if (*maxVal < maxv) {
+          *maxVal = maxv;
         }
         break;
       }
       case TSDB_DATA_TYPE_DOUBLE:
       case TSDB_DATA_TYPE_FLOAT: {
-        for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-          double minv = pSeg->pBoundingEntries[j].dMinVal;
-          double maxv = pSeg->pBoundingEntries[j].dMaxVal;
+        double minv = pSlot->range.dMinVal;
+        double maxv = pSlot->range.dMaxVal;
 
-          if (*minVal > minv) {
-            *minVal = minv;
-          }
-          if (*maxVal < maxv) {
-            *maxVal = maxv;
-          }
+        if (*minVal > minv) {
+          *minVal = minv;
+        }
+        if (*maxVal < maxv) {
+          *maxVal = maxv;
         }
         break;
       }
       case TSDB_DATA_TYPE_BIGINT: {
-        for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-          double minv = (double)pSeg->pBoundingEntries[j].i64MinVal;
-          double maxv = (double)pSeg->pBoundingEntries[j].i64MaxVal;
+        double minv = (double)pSlot->range.i64MinVal;
+        double maxv = (double)pSlot->range.i64MaxVal;
 
-          if (*minVal > minv) {
-            *minVal = minv;
-          }
-          if (*maxVal < maxv) {
-            *maxVal = maxv;
-          }
+        if (*minVal > minv) {
+          *minVal = minv;
+        }
+        if (*maxVal < maxv) {
+          *maxVal = maxv;
         }
         break;
       }
@@ -650,20 +484,6 @@ static void findMaxMinValue(tMemBucket *pMemBucket, double *maxVal, double *minV
   }
 }
 
-static MinMaxEntry getMinMaxEntryOfNearestSlotInNextSegment(tMemBucket *pMemBucket, int32_t segIdx) {
-  int32_t i = segIdx + 1;
-  while (i < pMemBucket->numOfSegs && pMemBucket->pSegs[i].numOfSlots == 0) ++i;
-
-  tMemBucketSegment *pSeg = &pMemBucket->pSegs[i];
-  assert(pMemBucket->numOfSegs > i && pMemBucket->pSegs[i].pBuffer != NULL);
-
-  i = 0;
-  while (i < pMemBucket->nSlotsOfSeg && pSeg->pBuffer[i] == NULL) ++i;
-
-  assert(i < pMemBucket->nSlotsOfSeg);
-  return pSeg->pBoundingEntries[i];
-}
-
 /*
  *
  * now, we need to find the minimum value of the next slot for
@@ -671,262 +491,198 @@ static MinMaxEntry getMinMaxEntryOfNearestSlotInNextSegment(tMemBucket *pMemBuck
  * j is the last slot of current segment, we need to get the first
  * slot of the next segment.
  */
-static MinMaxEntry getMinMaxEntryOfNextSlotWithData(tMemBucket *pMemBucket, int32_t segIdx, int32_t slotIdx) {
-  tMemBucketSegment *pSeg = &pMemBucket->pSegs[segIdx];
-
-  MinMaxEntry next;
-  if (slotIdx == pSeg->numOfSlots - 1) {  // find next segment with data
-    return getMinMaxEntryOfNearestSlotInNextSegment(pMemBucket, segIdx);
-  } else {
+static MinMaxEntry getMinMaxEntryOfNextSlotWithData(tMemBucket *pMemBucket, int32_t slotIdx) {
     int32_t j = slotIdx + 1;
-    for (; j < pMemBucket->nSlotsOfSeg && pMemBucket->pSegs[segIdx].pBuffer[j] == 0; ++j) {
+    while (j < pMemBucket->numOfSlots && (pMemBucket->pSlots[j].info.size == 0)) {
+      ++j;
+    }
+
+    assert(j < pMemBucket->numOfSlots);
+    return pMemBucket->pSlots[j].range;
+}
+
+static bool isIdenticalData(tMemBucket *pMemBucket, int32_t index);
+char *getFirstElemOfMemBuffer(tMemBucketSlot *pSeg, int32_t slotIdx, tFilePage *pPage);
+
+static double getIdenticalDataVal(tMemBucket* pMemBucket, int32_t slotIndex) {
+  assert(isIdenticalData(pMemBucket, slotIndex));
+
+  tMemBucketSlot *pSlot = &pMemBucket->pSlots[slotIndex];
+
+  double finalResult = 0.0;
+  switch (pMemBucket->type) {
+    case TSDB_DATA_TYPE_SMALLINT:
+    case TSDB_DATA_TYPE_TINYINT:
+    case TSDB_DATA_TYPE_INT: {
+      finalResult = pSlot->range.iMinVal;
+      break;
+    }
+
+    case TSDB_DATA_TYPE_FLOAT:
+    case TSDB_DATA_TYPE_DOUBLE: {
+      finalResult = pSlot->range.dMinVal;
+      break;
     };
 
-    if (j == pMemBucket->nSlotsOfSeg) {  // current slot has no available
-      // slot,try next segment
-      return getMinMaxEntryOfNearestSlotInNextSegment(pMemBucket, segIdx);
-    } else {
-      next = pSeg->pBoundingEntries[slotIdx + 1];
-      assert(pSeg->pBuffer[slotIdx + 1] != NULL);
+    case TSDB_DATA_TYPE_BIGINT: {
+      finalResult = pSlot->range.i64MinVal;
+      break;
     }
   }
 
-  return next;
+  return finalResult;
 }
 
-bool  isIdenticalData(tMemBucket *pMemBucket, int32_t segIdx, int32_t slotIdx);
-char *getFirstElemOfMemBuffer(tMemBucketSegment *pSeg, int32_t slotIdx, tFilePage *pPage);
-
 double getPercentileImpl(tMemBucket *pMemBucket, int32_t count, double fraction) {
   int32_t num = 0;
 
-  for (int32_t i = 0; i < pMemBucket->numOfSegs; ++i) {
-    tMemBucketSegment *pSeg = &pMemBucket->pSegs[i];
-    for (int32_t j = 0; j < pSeg->numOfSlots; ++j) {
-      if (pSeg->pBuffer == NULL || pSeg->pBuffer[j] == NULL) {
-        continue;
-      }
-      // required value in current slot
-      if (num < (count + 1) && num + pSeg->pBuffer[j]->numOfTotalElems >= (count + 1)) {
-        if (pSeg->pBuffer[j]->numOfTotalElems + num == (count + 1)) {
-          /*
-           * now, we need to find the minimum value of the next slot for interpolating the percentile value
-           * j is the last slot of current segment, we need to get the first slot of the next segment.
-           *
-           */
-          MinMaxEntry next = getMinMaxEntryOfNextSlotWithData(pMemBucket, i, j);
+  for (int32_t i = 0; i < pMemBucket->numOfSlots; ++i) {
+    tMemBucketSlot *pSlot = &pMemBucket->pSlots[i];
+    if (pSlot->info.size == 0) {
+      continue;
+    }
 
-          double maxOfThisSlot = 0;
-          double minOfNextSlot = 0;
-          switch (pMemBucket->dataType) {
-            case TSDB_DATA_TYPE_INT:
-            case TSDB_DATA_TYPE_SMALLINT:
-            case TSDB_DATA_TYPE_TINYINT: {
-              maxOfThisSlot = pSeg->pBoundingEntries[j].iMaxVal;
-              minOfNextSlot = next.iMinVal;
-              break;
-            };
-            case TSDB_DATA_TYPE_FLOAT:
-            case TSDB_DATA_TYPE_DOUBLE: {
-              maxOfThisSlot = pSeg->pBoundingEntries[j].dMaxVal;
-              minOfNextSlot = next.dMinVal;
-              break;
-            };
-            case TSDB_DATA_TYPE_BIGINT: {
-              maxOfThisSlot = (double)pSeg->pBoundingEntries[j].i64MaxVal;
-              minOfNextSlot = (double)next.i64MinVal;
-              break;
-            }
+    // required value in current slot
+    if (num < (count + 1) && num + pSlot->info.size >= (count + 1)) {
+      if (pSlot->info.size + num == (count + 1)) {
+        /*
+         * now, we need to find the minimum value of the next slot for interpolating the percentile value
+         * j is the last slot of current segment, we need to get the first slot of the next segment.
+         */
+        MinMaxEntry next = getMinMaxEntryOfNextSlotWithData(pMemBucket, i);
+
+        double maxOfThisSlot = 0;
+        double minOfNextSlot = 0;
+        switch (pMemBucket->type) {
+          case TSDB_DATA_TYPE_INT:
+          case TSDB_DATA_TYPE_SMALLINT:
+          case TSDB_DATA_TYPE_TINYINT: {
+            maxOfThisSlot = pSlot->range.iMaxVal;
+            minOfNextSlot = next.iMinVal;
+            break;
           };
-
-          assert(minOfNextSlot > maxOfThisSlot);
-
-          double val = (1 - fraction) * maxOfThisSlot + fraction * minOfNextSlot;
-          return val;
-        }
-        if (pSeg->pBuffer[j]->numOfTotalElems <= pMemBucket->maxElemsCapacity) {
-          // data in buffer and file are merged together to be processed.
-          tFilePage *buffer = loadIntoBucketFromDisk(pMemBucket, i, j, pMemBucket->pOrderDesc);
-          int32_t    currentIdx = count - num;
-
-          char * thisVal = buffer->data + pMemBucket->nElemSize * currentIdx;
-          char * nextVal = thisVal + pMemBucket->nElemSize;
-          double td = 1.0, nd = 1.0;
-          switch (pMemBucket->dataType) {
-            case TSDB_DATA_TYPE_SMALLINT: {
-              td = *(int16_t *)thisVal;
-              nd = *(int16_t *)nextVal;
-              break;
-            }
-            case TSDB_DATA_TYPE_TINYINT: {
-              td = *(int8_t *)thisVal;
-              nd = *(int8_t *)nextVal;
-              break;
-            }
-            case TSDB_DATA_TYPE_INT: {
-              td = *(int32_t *)thisVal;
-              nd = *(int32_t *)nextVal;
-              break;
-            };
-            case TSDB_DATA_TYPE_FLOAT: {
-              // td = *(float *)thisVal;
-              // nd = *(float *)nextVal;
-              td = GET_FLOAT_VAL(thisVal);
-              nd = GET_FLOAT_VAL(nextVal);
-              break;
-            }
-            case TSDB_DATA_TYPE_DOUBLE: {
-              // td = *(double *)thisVal;
-              td = GET_DOUBLE_VAL(thisVal);
-              // nd = *(double *)nextVal;
-              nd = GET_DOUBLE_VAL(nextVal);
-              break;
-            }
-            case TSDB_DATA_TYPE_BIGINT: {
-              td = (double)*(int64_t *)thisVal;
-              nd = (double)*(int64_t *)nextVal;
-              break;
-            }
+          case TSDB_DATA_TYPE_FLOAT:
+          case TSDB_DATA_TYPE_DOUBLE: {
+            maxOfThisSlot = pSlot->range.dMaxVal;
+            minOfNextSlot = next.dMinVal;
+            break;
+          };
+          case TSDB_DATA_TYPE_BIGINT: {
+            maxOfThisSlot = (double)pSlot->range.i64MaxVal;
+            minOfNextSlot = (double)next.i64MinVal;
+            break;
           }
-          double val = (1 - fraction) * td + fraction * nd;
-          taosTFree(buffer);
+        };
 
-          return val;
-        } else {  // incur a second round bucket split
-          if (isIdenticalData(pMemBucket, i, j)) {
-            tExtMemBuffer *pMemBuffer = pSeg->pBuffer[j];
+        assert(minOfNextSlot > maxOfThisSlot);
 
-            tFilePage *pPage = (tFilePage *)malloc(pMemBuffer->pageSize);
-
-            char *thisVal = getFirstElemOfMemBuffer(pSeg, j, pPage);
-
-            double finalResult = 0.0;
-
-            switch (pMemBucket->dataType) {
-              case TSDB_DATA_TYPE_SMALLINT: {
-                finalResult = *(int16_t *)thisVal;
-                break;
-              }
-              case TSDB_DATA_TYPE_TINYINT: {
-                finalResult = *(int8_t *)thisVal;
-                break;
-              }
-              case TSDB_DATA_TYPE_INT: {
-                finalResult = *(int32_t *)thisVal;
-                break;
-              };
-              case TSDB_DATA_TYPE_FLOAT: {
-                // finalResult = *(float *)thisVal;
-                finalResult = GET_FLOAT_VAL(thisVal);
-                break;
-              }
-              case TSDB_DATA_TYPE_DOUBLE: {
-                // finalResult = *(double *)thisVal;
-                finalResult = GET_DOUBLE_VAL(thisVal);
-                break;
-              }
-              case TSDB_DATA_TYPE_BIGINT: {
-                finalResult = (double)(*(int64_t *)thisVal);
-                break;
-              }
-            }
-
-            free(pPage);
-            return finalResult;
-          }
-
-          uDebug("MemBucket:%p,start second round bucketing", pMemBucket);
-
-          if (pSeg->pBuffer[j]->numOfElemsInBuffer != 0) {
-            uDebug("MemBucket:%p,flush %d pages to disk, clear status", pMemBucket, pSeg->pBuffer[j]->numOfInMemPages);
-
-            pMemBucket->numOfAvailPages += pSeg->pBuffer[j]->numOfInMemPages;
-            tExtMemBufferFlush(pSeg->pBuffer[j]);
-          }
-
-          tExtMemBuffer *pMemBuffer = pSeg->pBuffer[j];
-          pSeg->pBuffer[j] = NULL;
-
-          // release all
-          for (int32_t tt = 0; tt < pMemBucket->numOfSegs; ++tt) {
-            tMemBucketSegment *pSeg = &pMemBucket->pSegs[tt];
-            for (int32_t ttx = 0; ttx < pSeg->numOfSlots; ++ttx) {
-              if (pSeg->pBuffer && pSeg->pBuffer[ttx]) {
-                pSeg->pBuffer[ttx] = destoryExtMemBuffer(pSeg->pBuffer[ttx]);
-              }
-            }
-          }
-
-          pMemBucket->nRange.i64MaxVal = pSeg->pBoundingEntries->i64MaxVal;
-          pMemBucket->nRange.i64MinVal = pSeg->pBoundingEntries->i64MinVal;
-          pMemBucket->numOfElems = 0;
-
-          for (int32_t tt = 0; tt < pMemBucket->numOfSegs; ++tt) {
-            tMemBucketSegment *pSeg = &pMemBucket->pSegs[tt];
-            for (int32_t ttx = 0; ttx < pSeg->numOfSlots; ++ttx) {
-              if (pSeg->pBoundingEntries) {
-                resetBoundingBox(pSeg, pMemBucket->dataType);
-              }
-            }
-          }
-
-          tFilePage *pPage = (tFilePage *)malloc(pMemBuffer->pageSize);
-
-          tFlushoutInfo *pFlushInfo = &pMemBuffer->fileMeta.flushoutData.pFlushoutInfo[0];
-          assert(pFlushInfo->numOfPages == pMemBuffer->fileMeta.nFileSize);
-
-          int32_t ret = fseek(pMemBuffer->file, pFlushInfo->startPageId * pMemBuffer->pageSize, SEEK_SET);
-          UNUSED(ret);
-
-          for (uint32_t jx = 0; jx < pFlushInfo->numOfPages; ++jx) {
-            size_t sz = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
-            if (sz != pMemBuffer->pageSize) {
-              uError("MemBucket:%p, read tmp file %s failed", pMemBucket, pMemBuffer->path);
-            } else {
-              tMemBucketPut(pMemBucket, pPage->data, (int32_t)pPage->num);
-            }
-          }
-
-          fclose(pMemBuffer->file);
-          if (unlink(pMemBuffer->path) != 0) {
-            uError("MemBucket:%p, remove tmp file %s failed", pMemBucket, pMemBuffer->path);
-          }
-          taosTFree(pMemBuffer);
-          taosTFree(pPage);
-
-          return getPercentileImpl(pMemBucket, count - num, fraction);
-        }
-      } else {
-        num += pSeg->pBuffer[j]->numOfTotalElems;
+        double val = (1 - fraction) * maxOfThisSlot + fraction * minOfNextSlot;
+        return val;
       }
+
+      if (pSlot->info.size <= pMemBucket->maxCapacity) {
+        // data in buffer and file are merged together to be processed.
+        tFilePage *buffer = loadDataFromFilePage(pMemBucket, i);
+        int32_t    currentIdx = count - num;
+
+        char *thisVal = buffer->data + pMemBucket->bytes * currentIdx;
+        char *nextVal = thisVal + pMemBucket->bytes;
+
+        double td = 1.0, nd = 1.0;
+        switch (pMemBucket->type) {
+          case TSDB_DATA_TYPE_SMALLINT: {
+            td = *(int16_t *)thisVal;
+            nd = *(int16_t *)nextVal;
+            break;
+          }
+          case TSDB_DATA_TYPE_TINYINT: {
+            td = *(int8_t *)thisVal;
+            nd = *(int8_t *)nextVal;
+            break;
+          }
+          case TSDB_DATA_TYPE_INT: {
+            td = *(int32_t *)thisVal;
+            nd = *(int32_t *)nextVal;
+            break;
+          };
+          case TSDB_DATA_TYPE_FLOAT: {
+            td = GET_FLOAT_VAL(thisVal);
+            nd = GET_FLOAT_VAL(nextVal);
+            break;
+          }
+          case TSDB_DATA_TYPE_DOUBLE: {
+            td = GET_DOUBLE_VAL(thisVal);
+            nd = GET_DOUBLE_VAL(nextVal);
+            break;
+          }
+          case TSDB_DATA_TYPE_BIGINT: {
+            td = (double)*(int64_t *)thisVal;
+            nd = (double)*(int64_t *)nextVal;
+            break;
+          }
+        }
+
+        double val = (1 - fraction) * td + fraction * nd;
+        taosTFree(buffer);
+
+        return val;
+      } else {  // incur a second round bucket split
+       if (isIdenticalData(pMemBucket, i)) {
+         return getIdenticalDataVal(pMemBucket, i);
+       }
+
+       // try next round
+       pMemBucket->times += 1;
+       uDebug("MemBucket:%p, start next round data bucketing, time:%d", pMemBucket, pMemBucket->times);
+
+       pMemBucket->range = pSlot->range;
+       pMemBucket->total = 0;
+
+       resetSlotInfo(pMemBucket);
+
+       int32_t groupId = getGroupId(pMemBucket->numOfSlots, i, pMemBucket->times - 1);
+       SIDList list = getDataBufPagesIdList(pMemBucket->pBuffer, groupId);
+       assert(list->size > 0);
+
+       for (int32_t f = 0; f < list->size; ++f) {
+         SPageInfo *pgInfo = *(SPageInfo **)taosArrayGet(list, f);
+         tFilePage *pg = getResBufPage(pMemBucket->pBuffer, pgInfo->pageId);
+
+         tMemBucketPut(pMemBucket, pg->data, (int32_t)pg->num);
+         releaseResBufPageInfo(pMemBucket->pBuffer, pgInfo);
+       }
+
+       return getPercentileImpl(pMemBucket, count - num, fraction);
+      }
+    } else {
+      num += pSlot->info.size;
     }
   }
+
   return 0;
 }
 
 double getPercentile(tMemBucket *pMemBucket, double percent) {
-  if (pMemBucket->numOfElems == 0) {
+  if (pMemBucket->total == 0) {
     return 0.0;
   }
 
-  if (pMemBucket->numOfElems == 1) {  // return the only element
+  // if only one elements exists, return it
+  if (pMemBucket->total == 1) {
     return findOnlyResult(pMemBucket);
   }
 
   percent = fabs(percent);
 
-  // validate the parameters
+  // find the min/max value, no need to scan all data in bucket
   if (fabs(percent - 100.0) < DBL_EPSILON || (percent < DBL_EPSILON)) {
     double minx = 0, maxx = 0;
-    /*
-     * find the min/max value, no need to scan all data in bucket
-     */
     findMaxMinValue(pMemBucket, &maxx, &minx);
 
     return fabs(percent - 100) < DBL_EPSILON ? maxx : minx;
   }
 
-  double  percentVal = (percent * (pMemBucket->numOfElems - 1)) / ((double)100.0);
+  double  percentVal = (percent * (pMemBucket->total - 1)) / ((double)100.0);
   int32_t orderIdx = (int32_t)percentVal;
 
   // do put data by using buckets
@@ -934,19 +690,18 @@ double getPercentile(tMemBucket *pMemBucket, double percent) {
 }
 
 /*
- * check if data in one slot are all identical
- * only need to compare with the bounding box
+ * check if data in one slot are all identical only need to compare with the bounding box
  */
-bool isIdenticalData(tMemBucket *pMemBucket, int32_t segIdx, int32_t slotIdx) {
-  tMemBucketSegment *pSeg = &pMemBucket->pSegs[segIdx];
+bool isIdenticalData(tMemBucket *pMemBucket, int32_t index) {
+  tMemBucketSlot *pSeg = &pMemBucket->pSlots[index];
 
-  if (pMemBucket->dataType == TSDB_DATA_TYPE_INT || pMemBucket->dataType == TSDB_DATA_TYPE_BIGINT ||
-      pMemBucket->dataType == TSDB_DATA_TYPE_SMALLINT || pMemBucket->dataType == TSDB_DATA_TYPE_TINYINT) {
-    return pSeg->pBoundingEntries[slotIdx].i64MinVal == pSeg->pBoundingEntries[slotIdx].i64MaxVal;
+  if (pMemBucket->type == TSDB_DATA_TYPE_INT || pMemBucket->type == TSDB_DATA_TYPE_BIGINT ||
+      pMemBucket->type == TSDB_DATA_TYPE_SMALLINT || pMemBucket->type == TSDB_DATA_TYPE_TINYINT) {
+    return pSeg->range.i64MinVal == pSeg->range.i64MaxVal;
   }
 
-  if (pMemBucket->dataType == TSDB_DATA_TYPE_FLOAT || pMemBucket->dataType == TSDB_DATA_TYPE_DOUBLE) {
-    return fabs(pSeg->pBoundingEntries[slotIdx].dMaxVal - pSeg->pBoundingEntries[slotIdx].dMinVal) < DBL_EPSILON;
+  if (pMemBucket->type == TSDB_DATA_TYPE_FLOAT || pMemBucket->type == TSDB_DATA_TYPE_DOUBLE) {
+    return fabs(pSeg->range.dMaxVal - pSeg->range.dMinVal) < DBL_EPSILON;
   }
 
   return false;
@@ -956,24 +711,24 @@ bool isIdenticalData(tMemBucket *pMemBucket, int32_t segIdx, int32_t slotIdx) {
  * get the first element of one slot into memory.
  * if no data of current slot in memory, load it from disk
  */
-char *getFirstElemOfMemBuffer(tMemBucketSegment *pSeg, int32_t slotIdx, tFilePage *pPage) {
-  tExtMemBuffer *pMemBuffer = pSeg->pBuffer[slotIdx];
-  char *         thisVal = NULL;
+char *getFirstElemOfMemBuffer(tMemBucketSlot *pSeg, int32_t slotIdx, tFilePage *pPage) {
+//  STSBuf *pMemBuffer = pSeg->pBuffer[slotIdx];
+  char *thisVal = NULL;
 
-  if (pSeg->pBuffer[slotIdx]->numOfElemsInBuffer != 0) {
-    thisVal = pSeg->pBuffer[slotIdx]->pHead->item.data;
-  } else {
-    /*
-     * no data in memory, load one page into memory
-     */
-    tFlushoutInfo *pFlushInfo = &pMemBuffer->fileMeta.flushoutData.pFlushoutInfo[0];
-    assert(pFlushInfo->numOfPages == pMemBuffer->fileMeta.nFileSize);
-    int32_t ret;
-    ret = fseek(pMemBuffer->file, pFlushInfo->startPageId * pMemBuffer->pageSize, SEEK_SET);
-    UNUSED(ret);
-    size_t sz = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
-    UNUSED(sz);
-    thisVal = pPage->data;
-  }
+//  if (pSeg->pBuffer[slotIdx]->numOfTotal != 0) {
+////    thisVal = pSeg->pBuffer[slotIdx]->pHead->item.data;
+//  } else {
+//    /*
+//     * no data in memory, load one page into memory
+//     */
+//    tFlushoutInfo *pFlushInfo = &pMemBuffer->fileMeta.flushoutData.pFlushoutInfo[0];
+//    assert(pFlushInfo->numOfPages == pMemBuffer->fileMeta.nFileSize);
+//    int32_t ret;
+//    ret = fseek(pMemBuffer->file, pFlushInfo->startPageId * pMemBuffer->pageSize, SEEK_SET);
+//    UNUSED(ret);
+//    size_t sz = fread(pPage, pMemBuffer->pageSize, 1, pMemBuffer->file);
+//    UNUSED(sz);
+//    thisVal = pPage->data;
+//  }
   return thisVal;
 }

From 580448e381aa21062a15f33df88b11c6d1ad4be8 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 31 Aug 2020 16:41:16 +0800
Subject: [PATCH 29/69] [td-621]

---
 src/client/inc/tscUtil.h       |  4 +--
 src/client/src/tscAsync.c      | 36 ++++++-------------
 src/client/src/tscLocal.c      | 65 +++++++++++++++++++++++-----------
 src/client/src/tscLocalMerge.c |  7 ++--
 src/client/src/tscServer.c     | 16 +++------
 src/client/src/tscSubquery.c   | 50 ++++++++++++++++++++++----
 src/client/src/tscUtil.c       | 39 ++++++++++++--------
 7 files changed, 134 insertions(+), 83 deletions(-)

diff --git a/src/client/inc/tscUtil.h b/src/client/inc/tscUtil.h
index f77897a74b..6bdc2c86ae 100644
--- a/src/client/inc/tscUtil.h
+++ b/src/client/inc/tscUtil.h
@@ -186,7 +186,7 @@ SSqlExpr* tscSqlExprUpdate(SQueryInfo* pQueryInfo, int32_t index, int16_t functi
 size_t   tscSqlExprNumOfExprs(SQueryInfo* pQueryInfo);
 
 SSqlExpr* tscSqlExprGet(SQueryInfo* pQueryInfo, int32_t index);
-void      tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy);
+int32_t   tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy);
 void      tscSqlExprInfoDestroy(SArray* pExprInfo);
 
 SColumn* tscColumnClone(const SColumn* src);
@@ -204,7 +204,7 @@ bool tscValidateColumnId(STableMetaInfo* pTableMetaInfo, int32_t colId, int32_t
 SCond* tsGetSTableQueryCond(STagCond* pCond, uint64_t uid);
 void   tsSetSTableQueryCond(STagCond* pTagCond, uint64_t uid, SBufferWriter* bw);
 
-void tscTagCondCopy(STagCond* dest, const STagCond* src);
+int32_t tscTagCondCopy(STagCond* dest, const STagCond* src);
 void tscTagCondRelease(STagCond* pCond);
 
 void tscGetSrcColumnInfo(SSrcColumnInfo* pColInfo, SQueryInfo* pQueryInfo);
diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index 4643d255dc..41aa122160 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -50,7 +50,8 @@ void doAsyncQuery(STscObj* pObj, SSqlObj* pSql, void (*fp)(), void* param, const
   pSql->sqlstr = calloc(1, sqlLen + 1);
   if (pSql->sqlstr == NULL) {
     tscError("%p failed to malloc sql string buffer", pSql);
-    tscQueueAsyncError(pSql->fp, pSql->param, TSDB_CODE_TSC_OUT_OF_MEMORY);
+    pSql->res.code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    tscQueueAsyncRes(pSql);
     return;
   }
 
@@ -94,7 +95,6 @@ void taos_query_a(TAOS *taos, const char *sqlstr, __async_cb_func_t fp, void *pa
   SSqlObj *pSql = (SSqlObj *)calloc(1, sizeof(SSqlObj));
   if (pSql == NULL) {
     tscError("failed to malloc sqlObj");
-    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
     tscQueueAsyncError(fp, param, TSDB_CODE_TSC_OUT_OF_MEMORY);
     return;
   }
@@ -191,7 +191,7 @@ void tscAsyncQuerySingleRowForNextVnode(void *param, TAOS_RES *tres, int numOfRo
   tscProcessAsyncRetrieveImpl(param, tres, numOfRows, tscAsyncFetchSingleRowProxy);
 }
 
-void taos_fetch_rows_a(TAOS_RES *taosa, void (*fp)(void *, TAOS_RES *, int), void *param) {
+void taos_fetch_rows_a(TAOS_RES *taosa, __async_cb_func_t fp, void *param) {
   SSqlObj *pSql = (SSqlObj *)taosa;
   if (pSql == NULL || pSql->signature != pSql) {
     tscError("sql object is NULL");
@@ -209,6 +209,8 @@ void taos_fetch_rows_a(TAOS_RES *taosa, void (*fp)(void *, TAOS_RES *, int), voi
   if (pRes->qhandle == 0) {
     tscError("qhandle is NULL");
     pRes->code = TSDB_CODE_TSC_INVALID_QHANDLE;
+    pSql->param = param;
+
     tscQueueAsyncRes(pSql);
     return;
   }
@@ -269,7 +271,10 @@ void taos_fetch_row_a(TAOS_RES *taosa, void (*fp)(void *, TAOS_RES *, TAOS_ROW),
 
   if (pRes->qhandle == 0) {
     tscError("qhandle is NULL");
-    tscQueueAsyncError(fp, param, TSDB_CODE_TSC_INVALID_QHANDLE);
+    pSql->param = param;
+    pRes->code = TSDB_CODE_TSC_INVALID_QHANDLE;
+
+    tscQueueAsyncRes(pSql);
     return;
   }
 
@@ -352,36 +357,17 @@ void tscProcessFetchRow(SSchedMsg *pMsg) {
 
 void tscProcessAsyncRes(SSchedMsg *pMsg) {
   SSqlObj *pSql = (SSqlObj *)pMsg->ahandle;
-//  SSqlCmd *pCmd = &pSql->cmd;
   SSqlRes *pRes = &pSql->res;
-
-//  void *taosres = pSql;
-
-  // pCmd may be released, so cache pCmd->command
-//  int cmd = pCmd->command;
-//  int code = pRes->code;
-
-  // in case of async insert, restore the user specified callback function
-//  bool shouldFree = tscShouldBeFreed(pSql);
-
-//  if (pCmd->command == TSDB_SQL_INSERT) {
-//    assert(pSql->fp != NULL);
   assert(pSql->fp != NULL && pSql->fetchFp != NULL);
-//  }
 
-//  if (pSql->fp) {
   pSql->fp = pSql->fetchFp;
   (*pSql->fp)(pSql->param, pSql, pRes->code);
-//  }
-
-//  if (shouldFree) {
-//    tscDebug("%p sqlObj is automatically freed in async res", pSql);
-//    tscFreeSqlObj(pSql);
-//  }
 }
 
+// this function will be executed by queue task threads, so the terrno is not valid
 static void tscProcessAsyncError(SSchedMsg *pMsg) {
   void (*fp)() = pMsg->ahandle;
+  terrno = *(int32_t*) pMsg->msg;
   (*fp)(pMsg->thandle, NULL, *(int32_t*)pMsg->msg);
 }
 
diff --git a/src/client/src/tscLocal.c b/src/client/src/tscLocal.c
index caaaa5bc18..b240d357a8 100644
--- a/src/client/src/tscLocal.c
+++ b/src/client/src/tscLocal.c
@@ -274,7 +274,7 @@ static int32_t tscProcessDescribeTable(SSqlObj *pSql) {
   return tscSetValueToResObj(pSql, rowLen);
 }
 
-static void tscProcessCurrentUser(SSqlObj *pSql) {
+static int32_t tscProcessCurrentUser(SSqlObj *pSql) {
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
   
   SSqlExpr* pExpr = taosArrayGetP(pQueryInfo->exprList, 0);
@@ -282,14 +282,20 @@ static void tscProcessCurrentUser(SSqlObj *pSql) {
   pExpr->resType = TSDB_DATA_TYPE_BINARY;
   
   char* vx = calloc(1, pExpr->resBytes);
+  if (vx == NULL) {
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+
   size_t size = sizeof(pSql->pTscObj->user);
   STR_WITH_MAXSIZE_TO_VARSTR(vx, pSql->pTscObj->user, size);
   
   tscSetLocalQueryResult(pSql, vx, pExpr->aliasName, pExpr->resType, pExpr->resBytes);
   free(vx);
+
+  return TSDB_CODE_SUCCESS;
 }
 
-static void tscProcessCurrentDB(SSqlObj *pSql) {
+static int32_t tscProcessCurrentDB(SSqlObj *pSql) {
   char db[TSDB_DB_NAME_LEN] = {0};
   extractDBName(pSql->pTscObj->db, db);
   
@@ -302,6 +308,10 @@ static void tscProcessCurrentDB(SSqlObj *pSql) {
   pExpr->resBytes = TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE;
   
   char* vx = calloc(1, pExpr->resBytes);
+  if (vx == NULL) {
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+
   if (t == 0) {
     setVardataNull(vx, TSDB_DATA_TYPE_BINARY);
   } else {
@@ -310,9 +320,11 @@ static void tscProcessCurrentDB(SSqlObj *pSql) {
   
   tscSetLocalQueryResult(pSql, vx, pExpr->aliasName, pExpr->resType, pExpr->resBytes);
   free(vx);
+
+  return TSDB_CODE_SUCCESS;
 }
 
-static void tscProcessServerVer(SSqlObj *pSql) {
+static int32_t tscProcessServerVer(SSqlObj *pSql) {
   const char* v = pSql->pTscObj->sversion;
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, pSql->cmd.clauseIndex);
   
@@ -323,13 +335,18 @@ static void tscProcessServerVer(SSqlObj *pSql) {
   pExpr->resBytes = (int16_t)(t + VARSTR_HEADER_SIZE);
   
   char* vx = calloc(1, pExpr->resBytes);
+  if (vx == NULL) {
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+
   STR_WITH_SIZE_TO_VARSTR(vx, v, (VarDataLenT)t);
   tscSetLocalQueryResult(pSql, vx, pExpr->aliasName, pExpr->resType, pExpr->resBytes);
   
-  taosTFree(vx);
+  free(vx);
+  return TSDB_CODE_SUCCESS;
 }
 
-static void tscProcessClientVer(SSqlObj *pSql) {
+static int32_t tscProcessClientVer(SSqlObj *pSql) {
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
   
   SSqlExpr* pExpr = taosArrayGetP(pQueryInfo->exprList, 0);
@@ -339,23 +356,28 @@ static void tscProcessClientVer(SSqlObj *pSql) {
   pExpr->resBytes = (int16_t)(t + VARSTR_HEADER_SIZE);
   
   char* v = calloc(1, pExpr->resBytes);
+  if (v == NULL) {
+    return TSDB_CODE_TSC_OUT_OF_MEMORY;
+  }
+
   STR_WITH_SIZE_TO_VARSTR(v, version, (VarDataLenT)t);
   tscSetLocalQueryResult(pSql, v, pExpr->aliasName, pExpr->resType, pExpr->resBytes);
   
-  taosTFree(v);
+  free(v);
+  return TSDB_CODE_SUCCESS;
 }
 
-static void tscProcessServStatus(SSqlObj *pSql) {
+static int32_t tscProcessServStatus(SSqlObj *pSql) {
   STscObj* pObj = pSql->pTscObj;
   
   if (pObj->pHb != NULL) {
     if (pObj->pHb->res.code == TSDB_CODE_RPC_NETWORK_UNAVAIL) {
       pSql->res.code = TSDB_CODE_RPC_NETWORK_UNAVAIL;
-      return;
+      return pSql->res.code;
     }
   } else {
     if (pSql->res.code == TSDB_CODE_RPC_NETWORK_UNAVAIL) {
-      return;
+      return pSql->res.code;
     }
   }
   
@@ -364,6 +386,7 @@ static void tscProcessServStatus(SSqlObj *pSql) {
   SSqlExpr* pExpr = taosArrayGetP(pQueryInfo->exprList, 0);
   int32_t val = 1;
   tscSetLocalQueryResult(pSql, (char*) &val, pExpr->aliasName, TSDB_DATA_TYPE_INT, sizeof(int32_t));
+  return TSDB_CODE_SUCCESS;
 }
 
 void tscSetLocalQueryResult(SSqlObj *pSql, const char *val, const char *columnName, int16_t type, size_t valueLength) {
@@ -393,37 +416,39 @@ void tscSetLocalQueryResult(SSqlObj *pSql, const char *val, const char *columnNa
 
 int tscProcessLocalCmd(SSqlObj *pSql) {
   SSqlCmd *pCmd = &pSql->cmd;
+  SSqlRes *pRes = &pSql->res;
 
   if (pCmd->command == TSDB_SQL_CFG_LOCAL) {
-    pSql->res.code = (uint8_t)taosCfgDynamicOptions(pCmd->payload);
+    pRes->code = (uint8_t)taosCfgDynamicOptions(pCmd->payload);
   } else if (pCmd->command == TSDB_SQL_DESCRIBE_TABLE) {
-    pSql->res.code = (uint8_t)tscProcessDescribeTable(pSql);
+    pRes->code = (uint8_t)tscProcessDescribeTable(pSql);
   } else if (pCmd->command == TSDB_SQL_RETRIEVE_EMPTY_RESULT) {
     /*
      * set the qhandle to be 1 in order to pass the qhandle check, and to call partial release function to
      * free allocated resources and remove the SqlObj from sql query linked list
      */
-    pSql->res.qhandle = 0x1;
-    pSql->res.numOfRows = 0;
+    pRes->qhandle = 0x1;
+    pRes->numOfRows = 0;
   } else if (pCmd->command == TSDB_SQL_RESET_CACHE) {
     taosCacheEmpty(tscCacheHandle);
+    pRes->code = TSDB_CODE_SUCCESS;
   } else if (pCmd->command == TSDB_SQL_SERV_VERSION) {
-    tscProcessServerVer(pSql);
+    pRes->code = tscProcessServerVer(pSql);
   } else if (pCmd->command == TSDB_SQL_CLI_VERSION) {
-    tscProcessClientVer(pSql);
+    pRes->code = tscProcessClientVer(pSql);
   } else if (pCmd->command == TSDB_SQL_CURRENT_USER) {
-    tscProcessCurrentUser(pSql);
+    pRes->code = tscProcessCurrentUser(pSql);
   } else if (pCmd->command == TSDB_SQL_CURRENT_DB) {
-    tscProcessCurrentDB(pSql);
+    pRes->code = tscProcessCurrentDB(pSql);
   } else if (pCmd->command == TSDB_SQL_SERV_STATUS) {
-    tscProcessServStatus(pSql);
+    pRes->code = tscProcessServStatus(pSql);
   } else {
-    pSql->res.code = TSDB_CODE_TSC_INVALID_SQL;
+    pRes->code = TSDB_CODE_TSC_INVALID_SQL;
     tscError("%p not support command:%d", pSql, pCmd->command);
   }
 
   // keep the code in local variable in order to avoid invalid read in case of async query
-  int32_t code = pSql->res.code;
+  int32_t code = pRes->code;
   if (code == TSDB_CODE_SUCCESS) {
     (*pSql->fp)(pSql->param, pSql, code);
   } else {
diff --git a/src/client/src/tscLocalMerge.c b/src/client/src/tscLocalMerge.c
index cabf2a6a11..759c08532a 100644
--- a/src/client/src/tscLocalMerge.c
+++ b/src/client/src/tscLocalMerge.c
@@ -67,8 +67,7 @@ static void tscInitSqlContext(SSqlCmd *pCmd, SLocalReducer *pReducer, tOrderDesc
     SQLFunctionCtx *pCtx = &pReducer->pCtx[i];
     SSqlExpr *      pExpr = tscSqlExprGet(pQueryInfo, i);
 
-    pCtx->aOutputBuf =
-        pReducer->pResultBuf->data + pExpr->offset * pReducer->resColModel->capacity;
+    pCtx->aOutputBuf = pReducer->pResultBuf->data + pExpr->offset * pReducer->resColModel->capacity;
     pCtx->order = pQueryInfo->order.order;
     pCtx->functionId = pExpr->functionId;
 
@@ -160,7 +159,6 @@ void tscCreateLocalReducer(tExtMemBuffer **pMemBuffer, int32_t numOfBuffer, tOrd
   
   if (pMemBuffer == NULL) {
     tscLocalReducerEnvDestroy(pMemBuffer, pDesc, finalmodel, numOfBuffer);
-  
     tscError("%p pMemBuffer is NULL", pMemBuffer);
     pRes->code = TSDB_CODE_TSC_APP_ERROR;
     return;
@@ -168,7 +166,6 @@ void tscCreateLocalReducer(tExtMemBuffer **pMemBuffer, int32_t numOfBuffer, tOrd
  
   if (pDesc->pColumnModel == NULL) {
     tscLocalReducerEnvDestroy(pMemBuffer, pDesc, finalmodel, numOfBuffer);
-
     tscError("%p no local buffer or intermediate result format model", pSql);
     pRes->code = TSDB_CODE_TSC_APP_ERROR;
     return;
@@ -188,7 +185,6 @@ void tscCreateLocalReducer(tExtMemBuffer **pMemBuffer, int32_t numOfBuffer, tOrd
   if (numOfFlush == 0 || numOfBuffer == 0) {
     tscLocalReducerEnvDestroy(pMemBuffer, pDesc, finalmodel, numOfBuffer);
     tscDebug("%p retrieved no data", pSql);
-
     return;
   }
 
@@ -279,6 +275,7 @@ void tscCreateLocalReducer(tExtMemBuffer **pMemBuffer, int32_t numOfBuffer, tOrd
     taosTFree(pReducer);
     return;
   }
+
   param->pLocalData = pReducer->pLocalDataSrc;
   param->pDesc = pReducer->pDesc;
   param->num = pReducer->pLocalDataSrc[0]->pMemBuffer->numOfElemsPerPage;
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index ecb85472fc..6dcc7086b0 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -226,17 +226,13 @@ int tscSendMsgToServer(SSqlObj *pSql) {
       .handle  = &pSql->pRpcCtx,
       .code    = 0
   };
+
   // NOTE: the rpc context should be acquired before sending data to server.
   // Otherwise, the pSql object may have been released already during the response function, which is
   // processMsgFromServer function. In the meanwhile, the assignment of the rpc context to sql object will absolutely
   // cause crash.
-  if (pObj != NULL && pObj->signature == pObj) {
-    rpcSendRequest(pObj->pDnodeConn, &pSql->epSet, &rpcMsg);
-    return TSDB_CODE_SUCCESS;
-  } else {
-    //pObj->signature has been reset by other thread, ignore concurrency problem
-    return TSDB_CODE_TSC_CONN_KILLED; 
-  }
+  rpcSendRequest(pObj->pDnodeConn, &pSql->epSet, &rpcMsg);
+  return TSDB_CODE_SUCCESS;
 }
 
 void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcEpSet *pEpSet) {
@@ -1495,8 +1491,7 @@ int tscBuildTableMetaMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
   char *tmpData = NULL;
   uint32_t len = pSql->cmd.payloadLen;
   if (len > 0) {
-    tmpData = calloc(1, len);
-    if (NULL == tmpData) {
+    if ((tmpData = calloc(1, len)) == NULL) {
       return TSDB_CODE_TSC_OUT_OF_MEMORY;
     }
 
@@ -1541,8 +1536,7 @@ int tscBuildMultiMeterMetaMsg(SSqlObj *pSql, SSqlInfo *pInfo) {
   // copy payload content to temp buff
   char *tmpData = 0;
   if (pCmd->payloadLen > 0) {
-    tmpData = calloc(1, pCmd->payloadLen + 1);
-    if (NULL == tmpData) return -1;
+    if ((tmpData = calloc(1, pCmd->payloadLen + 1)) == NULL) return -1;
     memcpy(tmpData, pCmd->payload, pCmd->payloadLen);
   }
 
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index 2fb264c756..b1deeffced 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -570,8 +570,9 @@ static int32_t getIntersectionOfTableTuple(SQueryInfo* pQueryInfo, SSqlObj* pPar
 
   SSchema* pColSchema = tscGetTableColumnSchemaById(pTableMetaInfo->pTableMeta, tagColId);
 
-  *s1 = taosArrayInit(p1->num, p1->tagSize);
-  *s2 = taosArrayInit(p2->num, p2->tagSize);
+  // int16_t for padding
+  *s1 = taosArrayInit(p1->num, p1->tagSize - sizeof(int16_t));
+  *s2 = taosArrayInit(p2->num, p2->tagSize - sizeof(int16_t));
 
   if (!(checkForDuplicateTagVal(pQueryInfo, p1, pParentSql) && checkForDuplicateTagVal(pQueryInfo, p2, pParentSql))) {
     return TSDB_CODE_QRY_DUP_JOIN_KEY;
@@ -1039,6 +1040,10 @@ void tscSetupOutputColumnIndex(SSqlObj* pSql) {
 
   int32_t numOfExprs = (int32_t)tscSqlExprNumOfExprs(pQueryInfo);
   pRes->pColumnIndex = calloc(1, sizeof(SColumnIndex) * numOfExprs);
+  if (pRes->pColumnIndex == NULL) {
+    pRes->code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    return;
+  }
 
   for (int32_t i = 0; i < numOfExprs; ++i) {
     SSqlExpr* pExpr = tscSqlExprGet(pQueryInfo, i);
@@ -1153,6 +1158,7 @@ static void tscRetrieveDataRes(void *param, TAOS_RES *tres, int code);
 
 static SSqlObj *tscCreateSTableSubquery(SSqlObj *pSql, SRetrieveSupport *trsupport, SSqlObj *prevSqlObj);
 
+// TODO
 int32_t tscLaunchJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter *pSupporter) {
   SSqlCmd *   pCmd = &pSql->cmd;
   SQueryInfo *pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
@@ -1199,7 +1205,9 @@ int32_t tscLaunchJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter
   
     // this data needs to be transfer to support struct
     memset(&pNewQueryInfo->fieldsInfo, 0, sizeof(SFieldInfo));
-    tscTagCondCopy(&pSupporter->tagCond, &pNewQueryInfo->tagCond);//pNewQueryInfo->tagCond;
+    if (tscTagCondCopy(&pSupporter->tagCond, &pNewQueryInfo->tagCond) != 0) {
+      return TSDB_CODE_TSC_OUT_OF_MEMORY;
+    }
 
     pNew->cmd.numOfCols = 0;
     pNewQueryInfo->intervalTime = 0;
@@ -1380,7 +1388,7 @@ int32_t tscHandleMasterSTableQuery(SSqlObj *pSql) {
   
   const uint32_t nBufferSize = (1u << 16);  // 64KB
   
-  SQueryInfo *    pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
+  SQueryInfo     *pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
   STableMetaInfo *pTableMetaInfo = tscGetMetaInfo(pQueryInfo, 0);
   
   pSql->numOfSubs = pTableMetaInfo->vgroupList->numOfVgroups;
@@ -1395,9 +1403,20 @@ int32_t tscHandleMasterSTableQuery(SSqlObj *pSql) {
   }
   
   pSql->pSubs = calloc(pSql->numOfSubs, POINTER_BYTES);
-  
+
   tscDebug("%p retrieved query data from %d vnode(s)", pSql, pSql->numOfSubs);
   SSubqueryState *pState = calloc(1, sizeof(SSubqueryState));
+
+  if (pSql->pSubs == NULL || pState == NULL) {
+    taosTFree(pState);
+    taosTFree(pSql->pSubs);
+    pRes->code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    tscLocalReducerEnvDestroy(pMemoryBuf, pDesc, pModel, pSql->numOfSubs);
+
+    tscQueueAsyncRes(pSql);
+    return ret;
+  }
+
   pState->numOfTotal = pSql->numOfSubs;
   pState->numOfRemain = pSql->numOfSubs;
 
@@ -2029,8 +2048,21 @@ static void doBuildResFromSubqueries(SSqlObj* pSql) {
     numOfRes = (int32_t)(MIN(numOfRes, pSql->pSubs[i]->res.numOfRows));
   }
 
+  if (numOfRes == 0) {
+    return;
+  }
+
   int32_t totalSize = tscGetResRowLength(pQueryInfo->exprList);
-  pRes->pRsp = realloc(pRes->pRsp, numOfRes * totalSize);
+
+  assert(numOfRes * totalSize > 0);
+  char* tmp = realloc(pRes->pRsp, numOfRes * totalSize);
+  if (tmp == NULL) {
+    pRes->code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    return;
+  } else {
+    pRes->pRsp = tmp;
+  }
+
   pRes->data = pRes->pRsp;
 
   char* data = pRes->data;
@@ -2069,6 +2101,12 @@ void tscBuildResFromSubqueries(SSqlObj *pSql) {
     pRes->buffer = calloc(numOfExprs, POINTER_BYTES);
     pRes->length = calloc(numOfExprs, sizeof(int32_t));
 
+    if (pRes->tsrow == NULL || pRes->buffer == NULL || pRes->length == NULL) {
+      pRes->code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+      tscQueueAsyncRes(pSql);
+      return;
+    }
+
     tscRestoreSQLFuncForSTableQuery(pQueryInfo);
   }
 
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index b61fd7e8c9..7b09ef5902 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -254,15 +254,12 @@ int32_t tscCreateResPointerInfo(SSqlRes* pRes, SQueryInfo* pQueryInfo) {
     pRes->numOfCols = numOfOutput;
   
     pRes->tsrow  = calloc(numOfOutput, POINTER_BYTES);
-    pRes->length = calloc(numOfOutput, sizeof(int32_t));  // todo refactor
+    pRes->length = calloc(numOfOutput, sizeof(int32_t));
     pRes->buffer = calloc(numOfOutput, POINTER_BYTES);
   
     // not enough memory
     if (pRes->tsrow == NULL || (pRes->buffer == NULL && pRes->numOfCols > 0)) {
       taosTFree(pRes->tsrow);
-      taosTFree(pRes->buffer);
-      taosTFree(pRes->length);
-    
       pRes->code = TSDB_CODE_TSC_OUT_OF_MEMORY;
       return pRes->code;
     }
@@ -281,13 +278,14 @@ void tscDestroyResPointerInfo(SSqlRes* pRes) {
   }
   
   taosTFree(pRes->pRsp);
+
   taosTFree(pRes->tsrow);
   taosTFree(pRes->length);
-  
+  taosTFree(pRes->buffer);
+
   taosTFree(pRes->pGroupRec);
   taosTFree(pRes->pColumnIndex);
-  taosTFree(pRes->buffer);
-  
+
   if (pRes->pArithSup != NULL) {
     taosTFree(pRes->pArithSup->data);
     taosTFree(pRes->pArithSup);
@@ -1052,7 +1050,7 @@ void tscSqlExprInfoDestroy(SArray* pExprInfo) {
   taosArrayDestroy(pExprInfo);
 }
 
-void tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy) {
+int32_t tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy) {
   assert(src != NULL && dst != NULL);
   
   size_t size = taosArrayGetSize(src);
@@ -1064,7 +1062,7 @@ void tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy)
       if (deepcopy) {
         SSqlExpr* p1 = calloc(1, sizeof(SSqlExpr));
         if (p1 == NULL) {
-          assert(0);
+          return -1;
         }
 
         *p1 = *pExpr;
@@ -1078,6 +1076,8 @@ void tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy)
       }
     }
   }
+
+  return 0;
 }
 
 SColumn* tscColumnListInsert(SArray* pColumnList, SColumnIndex* pColIndex) {
@@ -1324,11 +1324,14 @@ bool tscValidateColumnId(STableMetaInfo* pTableMetaInfo, int32_t colId, int32_t
   return false;
 }
 
-void tscTagCondCopy(STagCond* dest, const STagCond* src) {
+int32_t tscTagCondCopy(STagCond* dest, const STagCond* src) {
   memset(dest, 0, sizeof(STagCond));
 
   if (src->tbnameCond.cond != NULL) {
     dest->tbnameCond.cond = strdup(src->tbnameCond.cond);
+    if (dest->tbnameCond.cond == NULL) {
+      return -1;
+    }
   }
 
   dest->tbnameCond.uid = src->tbnameCond.uid;
@@ -1337,7 +1340,7 @@ void tscTagCondCopy(STagCond* dest, const STagCond* src) {
   dest->relType = src->relType;
   
   if (src->pCond == NULL) {
-    return;
+    return 0;
   }
   
   size_t s = taosArrayGetSize(src->pCond);
@@ -1354,7 +1357,7 @@ void tscTagCondCopy(STagCond* dest, const STagCond* src) {
       assert(pCond->cond != NULL);
       c.cond = malloc(c.len);
       if (c.cond == NULL) {
-        assert(0);
+        return -1;
       }
 
       memcpy(c.cond, pCond->cond, c.len);
@@ -1362,6 +1365,8 @@ void tscTagCondCopy(STagCond* dest, const STagCond* src) {
     
     taosArrayPush(dest->pCond, &c);
   }
+
+  return 0;
 }
 
 void tscTagCondRelease(STagCond* pTagCond) {
@@ -1854,7 +1859,10 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, void (*fp)(), void
     }
   }
   
-  tscTagCondCopy(&pNewQueryInfo->tagCond, &pQueryInfo->tagCond);
+  if (tscTagCondCopy(&pNewQueryInfo->tagCond, &pQueryInfo->tagCond) != 0) {
+    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    goto _error;
+  }
 
   if (pQueryInfo->fillType != TSDB_FILL_NONE) {
     pNewQueryInfo->fillVal = malloc(pQueryInfo->fieldsInfo.numOfOutput * sizeof(int64_t));
@@ -1883,7 +1891,10 @@ SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, void (*fp)(), void
   }
 
   uint64_t uid = pTableMetaInfo->pTableMeta->id.uid;
-  tscSqlExprCopy(pNewQueryInfo->exprList, pQueryInfo->exprList, uid, true);
+  if (tscSqlExprCopy(pNewQueryInfo->exprList, pQueryInfo->exprList, uid, true) != 0) {
+    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    goto _error;
+  }
 
   doSetSqlExprAndResultFieldInfo(pQueryInfo, pNewQueryInfo, uid);
 

From fc936722c2d74133fdf5c84f56cf8727aca3a666 Mon Sep 17 00:00:00 2001
From: "Bison \"goldeagle\" Fan" <bison@bitseed.cn>
Date: Mon, 31 Aug 2020 17:07:54 +0800
Subject: [PATCH 30/69] Update README.md

remove gitee relative part.
---
 README.md | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 42c07ae771..8c26143a12 100644
--- a/README.md
+++ b/README.md
@@ -86,11 +86,7 @@ sudo dnf install -y maven
 - github:
 ```bash
 git clone https://github.com/taosdata/TDengine.git
-```
-
-- gitee:
-```bash
-git clone https://gitee.com/mirrors/taosdata-TDengine.git
+cd TDengine
 ```
 
 ## Build TDengine
@@ -108,7 +104,7 @@ cmake .. -DCPUTYPE=aarch64 && cmake --build .
 ```
 
 aarch32:
-```bashapt
+```bash
 cmake .. -DCPUTYPE=aarch32 && cmake --build .
 ```
 

From e9673320961e5e9c92acc3b3ee158ed325111b71 Mon Sep 17 00:00:00 2001
From: Bomin Zhang <bmzhang@taosdata.com>
Date: Mon, 31 Aug 2020 17:12:50 +0800
Subject: [PATCH 31/69] td-1099: natual interval in stream and bug fix

---
 src/client/inc/tsclient.h   |   4 +-
 src/client/src/tscProfile.c |   4 +-
 src/client/src/tscStream.c  | 100 +++++++++++++++++++++---------------
 src/common/inc/tname.h      |   2 +
 src/common/src/tname.c      |  56 ++++++++++++++++++++
 src/query/src/qExecutor.c   |  37 ++-----------
 src/query/src/qFill.c       |  26 ++++++++--
 7 files changed, 149 insertions(+), 80 deletions(-)

diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index d0141835a3..900d4955e9 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -367,6 +367,8 @@ typedef struct SSqlStream {
   uint32_t streamId;
   char     listed;
   bool     isProject;
+  char     intervalTimeUnit;
+  char     slidingTimeUnit;
   int16_t  precision;
   int64_t  num;  // number of computing count
 
@@ -380,7 +382,7 @@ typedef struct SSqlStream {
   int64_t ctime;     // stream created time
   int64_t stime;     // stream next executed time
   int64_t etime;     // stream end query time, when time is larger then etime, the stream will be closed
-  int64_t interval;
+  int64_t intervalTime;
   int64_t slidingTime;
   void *  pTimer;
 
diff --git a/src/client/src/tscProfile.c b/src/client/src/tscProfile.c
index 6ff97e9d00..b8c3830204 100644
--- a/src/client/src/tscProfile.c
+++ b/src/client/src/tscProfile.c
@@ -259,11 +259,11 @@ int tscBuildQueryStreamDesc(void *pMsg, STscObj *pObj) {
     pSdesc->num = htobe64(pStream->num);
 
     pSdesc->useconds = htobe64(pStream->useconds);
-    pSdesc->stime = htobe64(pStream->stime - pStream->interval);
+    pSdesc->stime = htobe64(pStream->stime - pStream->intervalTime);
     pSdesc->ctime = htobe64(pStream->ctime);
 
     pSdesc->slidingTime = htobe64(pStream->slidingTime);
-    pSdesc->interval = htobe64(pStream->interval);
+    pSdesc->interval = htobe64(pStream->intervalTime);
 
     pHeartbeat->numOfStreams++;
     pSdesc++;
diff --git a/src/client/src/tscStream.c b/src/client/src/tscStream.c
index 9dd47888d2..ea979bfae3 100644
--- a/src/client/src/tscStream.c
+++ b/src/client/src/tscStream.c
@@ -46,22 +46,23 @@ static bool isProjectStream(SQueryInfo* pQueryInfo) {
   return true;
 }
 
-static int64_t tscGetRetryDelayTime(int64_t slidingTime, int16_t prec) {
+static int64_t tscGetRetryDelayTime(SSqlStream* pStream, int64_t slidingTime, int16_t prec) {
   float retryRangeFactor = 0.3f;
-
-  // change to ms
-  if (prec == TSDB_TIME_PRECISION_MICRO) {
-    slidingTime = slidingTime / 1000;
-  }
-
   int64_t retryDelta = (int64_t)(tsStreamCompRetryDelay * retryRangeFactor);
   retryDelta = ((rand() % retryDelta) + tsStreamCompRetryDelay) * 1000L;
 
-  if (slidingTime < retryDelta) {
-    return slidingTime;
-  } else {
-    return retryDelta;
+  if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
+    // change to ms
+    if (prec == TSDB_TIME_PRECISION_MICRO) {
+      slidingTime = slidingTime / 1000;
+    }
+
+    if (slidingTime < retryDelta) {
+      return slidingTime;
+    }
   }
+  
+  return retryDelta;
 }
 
 static void tscProcessStreamLaunchQuery(SSchedMsg *pMsg) {
@@ -86,7 +87,7 @@ static void tscProcessStreamLaunchQuery(SSchedMsg *pMsg) {
 
   // failed to get meter/metric meta, retry in 10sec.
   if (code != TSDB_CODE_SUCCESS) {
-    int64_t retryDelayTime = tscGetRetryDelayTime(pStream->slidingTime, pStream->precision);
+    int64_t retryDelayTime = tscGetRetryDelayTime(pStream, pStream->slidingTime, pStream->precision);
     tscDebug("%p stream:%p,get metermeta failed, retry in %" PRId64 "ms", pStream->pSql, pStream, retryDelayTime);
     tscSetRetryTimer(pStream, pSql, retryDelayTime);
 
@@ -131,13 +132,17 @@ static void tscProcessStreamTimer(void *handle, void *tmrId) {
     }
     if (etime > pStream->etime) {
       etime = pStream->etime;
+    } else if (pStream->intervalTimeUnit != 'y' && pStream->intervalTimeUnit != 'n') {
+      etime = pStream->stime + (etime - pStream->stime) / pStream->intervalTime * pStream->intervalTime;
     } else {
-      etime = pStream->stime + (etime - pStream->stime) / pStream->interval * pStream->interval;
+      etime = taosGetIntervalStartTimestamp(etime, pStream->slidingTime, pStream->intervalTime, pStream->slidingTimeUnit, pStream->precision);
     }
     pQueryInfo->window.ekey = etime;
     if (pQueryInfo->window.skey >= pQueryInfo->window.ekey) {
       int64_t timer = pStream->slidingTime;
-      if (pStream->precision == TSDB_TIME_PRECISION_MICRO) {
+      if (pStream->intervalTimeUnit == 'y' || pStream->intervalTimeUnit == 'n') {
+        timer = 86400 * 1000l;
+      } else if (pStream->precision == TSDB_TIME_PRECISION_MICRO) {
         timer /= 1000l;
       }
       tscSetRetryTimer(pStream, pSql, timer);
@@ -157,7 +162,7 @@ static void tscProcessStreamTimer(void *handle, void *tmrId) {
 static void tscProcessStreamQueryCallback(void *param, TAOS_RES *tres, int numOfRows) {
   SSqlStream *pStream = (SSqlStream *)param;
   if (tres == NULL || numOfRows < 0) {
-    int64_t retryDelay = tscGetRetryDelayTime(pStream->slidingTime, pStream->precision);
+    int64_t retryDelay = tscGetRetryDelayTime(pStream, pStream->slidingTime, pStream->precision);
     tscError("%p stream:%p, query data failed, code:0x%08x, retry in %" PRId64 "ms", pStream->pSql, pStream, numOfRows,
              retryDelay);
 
@@ -218,7 +223,7 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
   SSqlObj *       pSql = (SSqlObj *)res;
 
   if (pSql == NULL || numOfRows < 0) {
-    int64_t retryDelayTime = tscGetRetryDelayTime(pStream->slidingTime, pStream->precision);
+    int64_t retryDelayTime = tscGetRetryDelayTime(pStream, pStream->slidingTime, pStream->precision);
     tscError("%p stream:%p, retrieve data failed, code:0x%08x, retry in %" PRId64 "ms", pSql, pStream, numOfRows, retryDelayTime);
   
     tscSetRetryTimer(pStream, pStream->pSql, retryDelayTime);
@@ -241,7 +246,11 @@ static void tscProcessStreamRetrieveResult(void *param, TAOS_RES *res, int numOf
     }
 
     if (!pStream->isProject) {
-      pStream->stime += pStream->slidingTime;
+      if (pStream->intervalTimeUnit == 'y' || pStream->intervalTimeUnit == 'n') {
+        pStream->stime = taosAddNatualInterval(pStream->stime, pStream->slidingTime, pStream->slidingTimeUnit, pStream->precision);
+      } else {
+        pStream->stime += pStream->slidingTime;
+      }
     }
     // actually only one row is returned. this following is not necessary
     taos_fetch_rows_a(res, tscProcessStreamRetrieveResult, pStream);
@@ -301,7 +310,7 @@ static void tscSetRetryTimer(SSqlStream *pStream, SSqlObj *pSql, int64_t timer)
              now + timer, timer, delay, pStream->stime, etime);
   } else {
     tscDebug("%p stream:%p, next start at %" PRId64 ", in %" PRId64 "ms. delay:%" PRId64 "ms qrange %" PRId64 "-%" PRId64, pStream->pSql, pStream,
-             pStream->stime, timer, delay, pStream->stime - pStream->interval, pStream->stime - 1);
+             pStream->stime, timer, delay, pStream->stime - pStream->intervalTime, pStream->stime - 1);
   }
 
   pSql->cmd.command = TSDB_SQL_SELECT;
@@ -311,23 +320,26 @@ static void tscSetRetryTimer(SSqlStream *pStream, SSqlObj *pSql, int64_t timer)
 }
 
 static int64_t getLaunchTimeDelay(const SSqlStream* pStream) {
-  int64_t delayDelta = (int64_t)(pStream->slidingTime * tsStreamComputDelayRatio);
-  
   int64_t maxDelay =
       (pStream->precision == TSDB_TIME_PRECISION_MICRO) ? tsMaxStreamComputDelay * 1000L : tsMaxStreamComputDelay;
   
-  if (delayDelta > maxDelay) {
-    delayDelta = maxDelay;
-  }
-  
-  int64_t remainTimeWindow = pStream->slidingTime - delayDelta;
-  if (maxDelay > remainTimeWindow) {
-    maxDelay = (int64_t)(remainTimeWindow / 1.5f);
+  int64_t delayDelta = maxDelay;
+  if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
+    delayDelta = pStream->slidingTime * tsStreamComputDelayRatio;
+    if (delayDelta > maxDelay) {
+      delayDelta = maxDelay;
+    }
+    int64_t remainTimeWindow = pStream->slidingTime - delayDelta;
+    if (maxDelay > remainTimeWindow) {
+      maxDelay = (int64_t)(remainTimeWindow / 1.5f);
+    }
   }
   
   int64_t currentDelay = (rand() % maxDelay);  // a random number
   currentDelay += delayDelta;
-  assert(currentDelay < pStream->slidingTime);
+  if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
+    assert(currentDelay < pStream->slidingTime);
+  }
   
   return currentDelay;
 }
@@ -354,7 +366,8 @@ static void tscSetNextLaunchTimer(SSqlStream *pStream, SSqlObj *pSql) {
       return;
     }
   } else {
-    if ((pStream->stime - pStream->interval) >= pStream->etime) {
+    int64_t stime = taosGetIntervalStartTimestamp(pStream->stime - 1, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
+    if (stime >= pStream->etime) {
       tscDebug("%p stream:%p, stime:%" PRId64 " is larger than end time: %" PRId64 ", stop the stream", pStream->pSql, pStream,
                pStream->stime, pStream->etime);
       // TODO : How to terminate stream here
@@ -387,24 +400,24 @@ static void tscSetSlidingWindowInfo(SSqlObj *pSql, SSqlStream *pStream) {
   
   SQueryInfo* pQueryInfo = tscGetQueryInfoDetail(&pSql->cmd, 0);
   
-  if (pQueryInfo->intervalTime < minIntervalTime) {
+  if (pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y' && pQueryInfo->intervalTime < minIntervalTime) {
     tscWarn("%p stream:%p, original sample interval:%ld too small, reset to:%" PRId64, pSql, pStream,
             pQueryInfo->intervalTime, minIntervalTime);
     pQueryInfo->intervalTime = minIntervalTime;
   }
 
-  pStream->interval = pQueryInfo->intervalTime;  // it shall be derived from sql string
+  pStream->intervalTimeUnit = pQueryInfo->intervalTimeUnit;
+  pStream->intervalTime = pQueryInfo->intervalTime;  // it shall be derived from sql string
 
-  if (pQueryInfo->slidingTime == 0) {
+  if (pQueryInfo->slidingTime <= 0) {
     pQueryInfo->slidingTime = pQueryInfo->intervalTime;
+    pQueryInfo->slidingTimeUnit = pQueryInfo->intervalTimeUnit;
   }
 
   int64_t minSlidingTime =
       (pStream->precision == TSDB_TIME_PRECISION_MICRO) ? tsMinSlidingTime * 1000L : tsMinSlidingTime;
 
-  if (pQueryInfo->slidingTime == -1) {
-    pQueryInfo->slidingTime = pQueryInfo->intervalTime;
-  } else if (pQueryInfo->slidingTime < minSlidingTime) {
+  if (pQueryInfo->intervalTimeUnit != 'n' && pQueryInfo->intervalTimeUnit != 'y' && pQueryInfo->slidingTime < minSlidingTime) {
     tscWarn("%p stream:%p, original sliding value:%" PRId64 " too small, reset to:%" PRId64, pSql, pStream,
         pQueryInfo->slidingTime, minSlidingTime);
 
@@ -418,6 +431,7 @@ static void tscSetSlidingWindowInfo(SSqlObj *pSql, SSqlStream *pStream) {
     pQueryInfo->slidingTime = pQueryInfo->intervalTime;
   }
 
+  pStream->slidingTimeUnit = pQueryInfo->slidingTimeUnit;
   pStream->slidingTime = pQueryInfo->slidingTime;
   
   if (pStream->isProject) {
@@ -431,7 +445,7 @@ static int64_t tscGetStreamStartTimestamp(SSqlObj *pSql, SSqlStream *pStream, in
   
   if (pStream->isProject) {
     // no data in table, flush all data till now to destination meter, 10sec delay
-    pStream->interval = tsProjectExecInterval;
+    pStream->intervalTime = tsProjectExecInterval;
     pStream->slidingTime = tsProjectExecInterval;
 
     if (stime != 0) {  // first projection start from the latest event timestamp
@@ -442,11 +456,15 @@ static int64_t tscGetStreamStartTimestamp(SSqlObj *pSql, SSqlStream *pStream, in
     }
   } else {             // timewindow based aggregation stream
     if (stime == 0) {  // no data in meter till now
-      stime = ((int64_t)taosGetTimestamp(pStream->precision) / pStream->interval) * pStream->interval;
-      stime -= pStream->interval;
-      tscWarn("%p stream:%p, last timestamp:0, reset to:%" PRId64, pSql, pStream, stime);
+      stime = pQueryInfo->window.skey;
+      if (stime == INT64_MIN) {
+        stime = (int64_t)taosGetTimestamp(pStream->precision);
+        stime = taosGetIntervalStartTimestamp(stime, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
+        stime = taosGetIntervalStartTimestamp(stime - 1, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
+        tscWarn("%p stream:%p, last timestamp:0, reset to:%" PRId64, pSql, pStream, stime);
+      }
     } else {
-      int64_t newStime = (stime / pStream->interval) * pStream->interval;
+      int64_t newStime = taosGetIntervalStartTimestamp(stime, pStream->intervalTime, pStream->intervalTime, pStream->intervalTimeUnit, pStream->precision);
       if (newStime != stime) {
         tscWarn("%p stream:%p, last timestamp:%" PRId64 ", reset to:%" PRId64, pSql, pStream, stime, newStime);
         stime = newStime;
@@ -516,7 +534,7 @@ static void tscCreateStream(void *param, TAOS_RES *res, int code) {
   taosTmrReset(tscProcessStreamTimer, (int32_t)starttime, pStream, tscTmr, &pStream->pTimer);
 
   tscDebug("%p stream:%p is opened, query on:%s, interval:%" PRId64 ", sliding:%" PRId64 ", first launched in:%" PRId64 ", sql:%s", pSql,
-           pStream, pTableMetaInfo->name, pStream->interval, pStream->slidingTime, starttime, pSql->sqlstr);
+           pStream, pTableMetaInfo->name, pStream->intervalTime, pStream->slidingTime, starttime, pSql->sqlstr);
 }
 
 TAOS_STREAM *taos_open_stream(TAOS *taos, const char *sqlstr, void (*fp)(void *param, TAOS_RES *, TAOS_ROW row),
diff --git a/src/common/inc/tname.h b/src/common/inc/tname.h
index 2a4ac3fc40..beef9ff375 100644
--- a/src/common/inc/tname.h
+++ b/src/common/inc/tname.h
@@ -35,6 +35,8 @@ bool tscValidateTableNameLength(size_t len);
 
 SColumnFilterInfo* tscFilterInfoClone(const SColumnFilterInfo* src, int32_t numOfFilters);
 
+int64_t taosAddNatualInterval(int64_t key, int64_t intervalTime, char timeUnit, int16_t precision);
+int32_t taosCountNatualInterval(int64_t skey, int64_t ekey, int64_t intervalTime, char timeUnit, int16_t precision);
 int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, int64_t intervalTime, char timeUnit, int16_t precision);
 
 #endif  // TDENGINE_NAME_H
diff --git a/src/common/src/tname.c b/src/common/src/tname.c
index 0c89d26bed..248c996999 100644
--- a/src/common/src/tname.c
+++ b/src/common/src/tname.c
@@ -100,6 +100,62 @@ SColumnFilterInfo* tscFilterInfoClone(const SColumnFilterInfo* src, int32_t numO
   return pFilter;
 }
 
+int64_t taosAddNatualInterval(int64_t key, int64_t intervalTime, char timeUnit, int16_t precision) {
+  key /= 1000;
+  if (precision == TSDB_TIME_PRECISION_MICRO) {
+    key /= 1000;
+  }
+
+  struct tm tm;
+  time_t t = (time_t)key;
+  localtime_r(&t, &tm);
+
+  if (timeUnit == 'y') {
+    intervalTime *= 12;
+  }
+
+  int mon = tm.tm_year * 12 + tm.tm_mon + intervalTime;
+  tm.tm_year = mon / 12;
+  tm.tm_mon = mon % 12;
+
+  key = mktime(&tm) * 1000L;
+
+  if (precision == TSDB_TIME_PRECISION_MICRO) {
+    key *= 1000L;
+  }
+
+  return key;
+}
+
+int32_t taosCountNatualInterval(int64_t skey, int64_t ekey, int64_t intervalTime, char timeUnit, int16_t precision) {
+  skey /= 1000;
+  ekey /= 1000;
+  if (precision == TSDB_TIME_PRECISION_MICRO) {
+    skey /= 1000;
+    ekey /= 1000;
+  }
+  if (ekey < skey) {
+    int64_t tmp = ekey;
+    ekey = skey;
+    skey = tmp;
+  }
+
+  struct tm tm;
+  time_t t = (time_t)skey;
+  localtime_r(&t, &tm);
+  int smon = tm.tm_year * 12 + tm.tm_mon;
+
+  t = (time_t)ekey;
+  localtime_r(&t, &tm);
+  int emon = tm.tm_year * 12 + tm.tm_mon;
+
+  if (timeUnit == 'y') {
+    intervalTime *= 12;
+  }
+
+  return (emon - smon) / (int32_t)intervalTime;
+}
+
 int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, int64_t intervalTime, char timeUnit, int16_t precision) {
   if (slidingTime == 0) {
     return startTime;
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 79a4243537..e32991d504 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -137,33 +137,6 @@ static void finalizeQueryResult(SQueryRuntimeEnv *pRuntimeEnv);
 
 #define QUERY_IS_INTERVAL_QUERY(_q) ((_q)->intervalTime > 0)
 
-static int64_t addNatualInterval(int64_t key, int64_t intervalTime, char intervalTimeUnit, int precision) {
-  key /= 1000;
-  if (precision == TSDB_TIME_PRECISION_MICRO) {
-    key /= 1000;
-  }
-
-  struct tm tm;
-  time_t t = (time_t)key;
-  localtime_r(&t, &tm);
-
-  if (intervalTimeUnit == 'y') {
-    intervalTime *= 12;
-  }
-
-  int mon = tm.tm_year * 12 + tm.tm_mon + intervalTime;
-  tm.tm_year = mon / 12;
-  tm.tm_mon = mon % 12;
-
-  key = mktime(&tm) * 1000L;
-
-  if (precision == TSDB_TIME_PRECISION_MICRO) {
-    key *= 1000L;
-  }
-
-  return key;
-}
-
 static void getNextTimeWindow(SQuery* pQuery, STimeWindow* tw) {
   int32_t factor = GET_FORWARD_DIRECTION_FACTOR(pQuery->order.order);
   if (pQuery->intervalTimeUnit != 'n' && pQuery->intervalTimeUnit != 'y') {
@@ -528,7 +501,7 @@ static STimeWindow getActiveTimeWindow(SWindowResInfo *pWindowResInfo, int64_t t
  if (pWindowResInfo->curIndex == -1) {  // the first window, from the previous stored value
     w.skey = pWindowResInfo->prevSKey;
     if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
-      w.ekey = addNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+      w.ekey = taosAddNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
     } else {
       w.ekey = w.skey + pQuery->intervalTime - 1;
     }
@@ -541,7 +514,7 @@ static STimeWindow getActiveTimeWindow(SWindowResInfo *pWindowResInfo, int64_t t
   if (w.skey > ts || w.ekey < ts) {
     if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
       w.skey = taosGetIntervalStartTimestamp(ts, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
-      w.ekey = addNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+      w.ekey = taosAddNatualInterval(w.skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
     } else {
       int64_t st = w.skey;
 
@@ -883,7 +856,7 @@ static int32_t getNextQualifiedWindow(SQueryRuntimeEnv *pRuntimeEnv, STimeWindow
     TSKEY next = primaryKeys[startPos];
     if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
       pNext->skey = taosGetIntervalStartTimestamp(next, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
-      pNext->ekey = addNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+      pNext->ekey = taosAddNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
     } else {
       pNext->ekey += ((next - pNext->ekey + pQuery->slidingTime - 1)/pQuery->slidingTime) * pQuery->slidingTime;
       pNext->skey = pNext->ekey - pQuery->intervalTime + 1;
@@ -892,7 +865,7 @@ static int32_t getNextQualifiedWindow(SQueryRuntimeEnv *pRuntimeEnv, STimeWindow
     TSKEY next = primaryKeys[startPos];
     if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
       pNext->skey = taosGetIntervalStartTimestamp(next, pQuery->slidingTime, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision);
-      pNext->ekey = addNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+      pNext->ekey = taosAddNatualInterval(pNext->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
     } else {
       pNext->skey -= ((pNext->skey - next + pQuery->slidingTime - 1) / pQuery->slidingTime) * pQuery->slidingTime;
       pNext->ekey = pNext->skey + pQuery->intervalTime - 1;
@@ -1880,7 +1853,7 @@ void getAlignQueryTimeWindow(SQuery *pQuery, int64_t key, int64_t keyFirst, int6
     assert(keyLast - keyFirst < pQuery->intervalTime);
     win->ekey = INT64_MAX;
   } else if (pQuery->intervalTimeUnit == 'n' || pQuery->intervalTimeUnit == 'y') {
-    win->ekey = addNatualInterval(win->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
+    win->ekey = taosAddNatualInterval(win->skey, pQuery->intervalTime, pQuery->intervalTimeUnit, pQuery->precision) - 1;
   } else {
     win->ekey = win->skey + pQuery->intervalTime - 1;
   }
diff --git a/src/query/src/qFill.c b/src/query/src/qFill.c
index c1cfab3ea2..b3bb443fd8 100644
--- a/src/query/src/qFill.c
+++ b/src/query/src/qFill.c
@@ -179,14 +179,22 @@ int64_t getFilledNumOfRes(SFillInfo* pFillInfo, TSKEY ekey, int32_t maxNumOfRows
   if (numOfRows > 0) {  // still fill gap within current data block, not generating data after the result set.
     TSKEY lastKey = tsList[pFillInfo->numOfRows - 1];
 
-    numOfRes = (int64_t)(ABS(lastKey - pFillInfo->start) / pFillInfo->slidingTime) + 1;
+    if (pFillInfo->slidingUnit != 'y' && pFillInfo->slidingUnit != 'n') {
+      numOfRes = (int64_t)(ABS(lastKey - pFillInfo->start) / pFillInfo->slidingTime) + 1;
+    } else {
+      numOfRes = taosCountNatualInterval(lastKey, pFillInfo->start, pFillInfo->slidingTime, pFillInfo->slidingUnit, pFillInfo->precision) + 1;
+    }
     assert(numOfRes >= numOfRows);
   } else { // reach the end of data
     if ((ekey1 < pFillInfo->start && FILL_IS_ASC_FILL(pFillInfo)) ||
         (ekey1 > pFillInfo->start && !FILL_IS_ASC_FILL(pFillInfo))) {
       return 0;
-    } else {  // the numOfRes rows are all filled with specified policy
+    }
+    // the numOfRes rows are all filled with specified policy
+    if (pFillInfo->slidingUnit != 'y' && pFillInfo->slidingUnit != 'n') {
       numOfRes = (ABS(ekey1 - pFillInfo->start) / pFillInfo->slidingTime) + 1;
+    } else {
+      numOfRes = taosCountNatualInterval(ekey1, pFillInfo->start, pFillInfo->slidingTime, pFillInfo->slidingUnit, pFillInfo->precision) + 1;
     }
   }
 
@@ -366,7 +374,12 @@ static void doFillResultImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t* nu
     setTagsValue(pFillInfo, data, *num);
   }
 
-  pFillInfo->start += (pFillInfo->slidingTime * step);
+// TODO natual sliding time
+  if (pFillInfo->slidingUnit != 'n' && pFillInfo->slidingUnit != 'y') {
+    pFillInfo->start += (pFillInfo->slidingTime * step);
+  } else {
+    pFillInfo->start = taosAddNatualInterval(pFillInfo->start, pFillInfo->slidingTime*step, pFillInfo->slidingUnit, pFillInfo->precision);
+  }
   pFillInfo->numOfCurrent++;
 
   (*num) += 1;
@@ -473,7 +486,12 @@ int32_t generateDataBlockImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t nu
         // set the tag value for final result
         setTagsValue(pFillInfo, data, num);
 
-        pFillInfo->start += (pFillInfo->slidingTime * step);
+        // TODO natual sliding time
+        if (pFillInfo->slidingUnit != 'n' && pFillInfo->slidingUnit != 'y') {
+          pFillInfo->start += (pFillInfo->slidingTime * step);
+        } else {
+          pFillInfo->start = taosAddNatualInterval(pFillInfo->start, pFillInfo->slidingTime*step, pFillInfo->slidingUnit, pFillInfo->precision);
+        }
         pFillInfo->rowIdx += 1;
 
         pFillInfo->numOfCurrent +=1;

From 599760c6e3462ca421d197394bee4e5d0247d0d4 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 17:24:28 +0800
Subject: [PATCH 32/69] [TD-1256]

---
 src/kit/shell/inc/shell.h      |   3 +
 src/kit/shell/src/shellLinux.c |  27 ++
 src/kit/shell/src/shellMain.c  |  11 +-
 src/util/inc/tnettest.h        |  29 +++
 src/util/src/tnettest.c        | 441 +++++++++++++++++++++++++++++++++
 5 files changed, 510 insertions(+), 1 deletion(-)
 create mode 100644 src/util/inc/tnettest.h
 create mode 100644 src/util/src/tnettest.c

diff --git a/src/kit/shell/inc/shell.h b/src/kit/shell/inc/shell.h
index d47f87965b..dd62df170a 100644
--- a/src/kit/shell/inc/shell.h
+++ b/src/kit/shell/inc/shell.h
@@ -50,6 +50,9 @@ typedef struct SShellArguments {
   char* commands;
   int   abort;
   int   port;
+  int   endPort;
+  int   pktLen;
+  char* netTestRole;
 } SShellArguments;
 
 /**************** Function declarations ****************/
diff --git a/src/kit/shell/src/shellLinux.c b/src/kit/shell/src/shellLinux.c
index c74eeb7f59..284b7991ea 100644
--- a/src/kit/shell/src/shellLinux.c
+++ b/src/kit/shell/src/shellLinux.c
@@ -46,6 +46,9 @@ static struct argp_option options[] = {
   {"thread",     'T', "THREADNUM",  0,                   "Number of threads when using multi-thread to import data."},
   {"database",   'd', "DATABASE",   0,                   "Database to use when connecting to the server."},
   {"timezone",   't', "TIMEZONE",   0,                   "Time zone of the shell, default is local."},
+  {"netrole",    'n', "NETROLE",    0,                   "Net role when testing, default is NULL, valid option: client | server."},
+  {"endport",    'e', "ENDPORT",    0,                   "Net test end port, default is 6042."},
+  {"pktlen",     'l', "PKTLEN",     0,                   "Packet length used for net test, default is 1000 bytes."},
   {0}};
 
 static error_t parse_opt(int key, char *arg, struct argp_state *state) {
@@ -65,6 +68,7 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
     case 'P':
       if (arg) {
         tsDnodeShellPort = atoi(arg);
+        arguments->port  = atoi(arg);
       } else {
         fprintf(stderr, "Invalid port\n");
         return -1;
@@ -126,6 +130,29 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
     case 'd':
       arguments->database = arg;
       break;
+
+    case 'n':
+      arguments->netTestRole = arg;
+      break;
+
+    case 'e':
+      if (arg) {
+        arguments->endPort = atoi(arg);
+      } else {
+        fprintf(stderr, "Invalid end port\n");
+        return -1;
+      }
+      break;
+
+    case 'l':
+      if (arg) {
+        arguments->pktLen = atoi(arg);
+      } else {
+        fprintf(stderr, "Invalid packet length\n");
+        return -1;
+      }
+      break;
+      
     case OPT_ABORT:
       arguments->abort = 1;
       break;
diff --git a/src/kit/shell/src/shellMain.c b/src/kit/shell/src/shellMain.c
index 44de6641f6..6cb7c669cc 100644
--- a/src/kit/shell/src/shellMain.c
+++ b/src/kit/shell/src/shellMain.c
@@ -15,6 +15,7 @@
 
 #include "os.h"
 #include "shell.h"
+#include "tnettest.h"
 
 pthread_t pid;
 
@@ -60,7 +61,10 @@ SShellArguments args = {
   .file = "\0",
   .dir = "\0",
   .threadNum = 5,
-  .commands = NULL
+  .commands = NULL,  
+  .endPort = 6042,
+  .pktLen = 1000,
+  .netTestRole = NULL
 };
 
 /*
@@ -75,6 +79,11 @@ int main(int argc, char* argv[]) {
 
   shellParseArgument(argc, argv, &args);
 
+  if (args.netTestRole && args.netTestRole[0] != 0) {
+    taosNetTest(args.host, (uint16_t)args.port, (uint16_t)args.endPort, args.pktLen, args.netTestRole);
+    exit(0);
+  }
+
   /* Initialize the shell */
   TAOS* con = shellInit(&args);
   if (con == NULL) {
diff --git a/src/util/inc/tnettest.h b/src/util/inc/tnettest.h
new file mode 100644
index 0000000000..3fe1dfa920
--- /dev/null
+++ b/src/util/inc/tnettest.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TDENGINE_TNETTEST_H
+#define TDENGINE_TNETTEST_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void taosNetTest(const char* host, uint16_t port, uint16_t endPort, int pktLen, const char* netTestRole);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // TDENGINE_TNETTEST_H
diff --git a/src/util/src/tnettest.c b/src/util/src/tnettest.c
new file mode 100644
index 0000000000..d3b404f6de
--- /dev/null
+++ b/src/util/src/tnettest.c
@@ -0,0 +1,441 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <argp.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <netdb.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <wordexp.h>
+
+#include "os.h"
+#include "taosdef.h"
+#include "taoserror.h"
+#include "tulog.h"
+#include "tconfig.h"
+#include "tglobal.h"
+#include "tsocket.h"
+
+#define    MAX_PKG_LEN          (64*1000)
+#define    BUFFER_SIZE          (MAX_PKG_LEN + 1024)
+
+typedef struct {
+  uint32_t hostIp;
+  uint16_t port;
+  uint16_t pktLen;
+} info_s;
+
+static char serverFqdn[TSDB_FQDN_LEN];
+static uint16_t g_startPort = 0;
+static uint16_t g_endPort   = 6042;
+
+static void *bindUdpPort(void *sarg) {
+  info_s *pinfo = (info_s *)sarg;
+  int   port = pinfo->port;
+  int   serverSocket;
+
+  struct sockaddr_in server_addr;
+  struct sockaddr_in clientAddr;
+  char               buffer[BUFFER_SIZE];
+  int                iDataNum;
+    
+  if ((serverSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+    perror("socket");
+    return NULL;
+  }
+
+  bzero(&server_addr, sizeof(server_addr));
+  server_addr.sin_family = AF_INET;
+  server_addr.sin_port = htons(port);
+  server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+  if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
+    perror("connect");
+    return NULL;
+  }
+
+  socklen_t sin_size;
+
+  while (1) {
+    memset(buffer, 0, BUFFER_SIZE);
+
+    sin_size = sizeof(*(struct sockaddr *)&server_addr);
+
+    iDataNum = recvfrom(serverSocket, buffer, BUFFER_SIZE, 0, (struct sockaddr *)&clientAddr, &sin_size);
+
+    if (iDataNum < 0) {
+      perror("recvfrom null");
+      continue;
+    }
+    if (iDataNum > 0) {
+      printf("recv Client: %s pkg from UDP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
+      //printf("Read msg from udp:%s ... %s\n", buffer, buffer+iDataNum-16);
+
+      sendto(serverSocket, buffer, iDataNum, 0, (struct sockaddr *)&clientAddr, (int)sin_size);
+    }
+  }
+
+  close(serverSocket);
+  return NULL;
+}
+
+static void *bindTcpPort(void *sarg) {
+  info_s *pinfo = (info_s *)sarg;
+  int   port = pinfo->port;
+  int   serverSocket;
+
+  struct sockaddr_in server_addr;
+  struct sockaddr_in clientAddr;
+  int                addr_len = sizeof(clientAddr);
+  int                client;
+  char               buffer[BUFFER_SIZE];
+  int                iDataNum = 0;
+
+  if ((serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
+    printf("socket() fail: %s", strerror(errno));
+    return NULL;
+  }
+
+  bzero(&server_addr, sizeof(server_addr));
+  server_addr.sin_family = AF_INET;
+  server_addr.sin_port = htons(port);
+  server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+  if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
+    printf("port:%d bind() fail: %s", port, strerror(errno));
+    return NULL;
+  }
+
+  if (listen(serverSocket, 5) < 0) {
+    printf("listen() fail: %s", strerror(errno));
+    return NULL;
+  }
+
+  //printf("Bind port: %d success\n", port);
+  while (1) {
+    client = accept(serverSocket, (struct sockaddr *)&clientAddr, (socklen_t *)&addr_len);
+    if (client < 0) {
+      printf("accept() fail: %s", strerror(errno));
+      continue;
+    }
+
+    iDataNum = 0;
+    memset(buffer, 0, BUFFER_SIZE);
+    int   nleft, nread;
+    char *ptr = buffer;
+    nleft = pinfo->pktLen;
+    while (nleft > 0) {
+      nread = recv(client, ptr, BUFFER_SIZE, 0);
+
+      if (nread == 0) {
+        break;
+      } else if (nread < 0) {
+        if (errno == EINTR) {
+          continue;
+        } else {
+          printf("recv Client: %s pkg from TCP port: %d fail:%s.\n", inet_ntoa(clientAddr.sin_addr), port, strerror(errno));
+          close(serverSocket);
+          return NULL;
+        }
+      } else {
+        nleft -= nread;
+        ptr += nread;
+        iDataNum += nread;
+      }      
+    }
+    
+    printf("recv Client: %s pkg from TCP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
+    if (iDataNum > 0) {
+      send(client, buffer, iDataNum, 0);
+    }
+  }
+  
+  close(serverSocket);
+  return NULL;
+}
+
+static int checkTcpPort(info_s *info) {
+  int   clientSocket;
+
+  struct sockaddr_in serverAddr;
+  char               sendbuf[BUFFER_SIZE];
+  char               recvbuf[BUFFER_SIZE];
+  int                iDataNum = 0;
+  if ((clientSocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+    printf("socket() fail: %s\n", strerror(errno));
+    return -1;
+  }
+
+  // set send and recv overtime
+  struct timeval timeout;  
+  timeout.tv_sec = 2;  //s
+  timeout.tv_usec = 0; //us  
+  if (setsockopt(clientSocket, SOL_SOCKET,SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
+    perror("setsockopt send timer failed:");
+  }
+  if (setsockopt(clientSocket, SOL_SOCKET,SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
+    perror("setsockopt recv timer failed:");
+  }
+
+  serverAddr.sin_family = AF_INET;
+  serverAddr.sin_port = htons(info->port);
+
+  serverAddr.sin_addr.s_addr = info->hostIp;
+
+  //printf("=================================\n");
+  if (connect(clientSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0) {
+    printf("connect() fail: %s\t", strerror(errno));
+    return -1;
+  }
+  //printf("Connect to: %s:%d...success\n", host, port);
+  memset(sendbuf, 0, BUFFER_SIZE);
+  memset(recvbuf, 0, BUFFER_SIZE);
+
+  struct in_addr ipStr;
+  memcpy(&ipStr, &info->hostIp, 4);
+  sprintf(sendbuf, "client send tcp pkg to %s:%d, content: 1122334455", inet_ntoa(ipStr), info->port);
+  sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
+
+  send(clientSocket, sendbuf, info->pktLen, 0);
+
+  memset(recvbuf, 0, BUFFER_SIZE);
+  int   nleft, nread;
+  char *ptr = recvbuf;
+  nleft = info->pktLen;
+  while (nleft > 0) {
+    nread = recv(clientSocket, ptr, BUFFER_SIZE, 0);;
+  
+    if (nread == 0) {
+      break;
+    } else if (nread < 0) {
+      if (errno == EINTR) {
+        continue;
+      } else {
+        printf("recv ack pkg from TCP port: %d fail:%s.\n", info->port, strerror(errno));
+        close(clientSocket);
+        return -1;
+      }
+    } else {
+      nleft -= nread;
+      ptr += nread;
+      iDataNum += nread;
+    }      
+  }
+
+  if (iDataNum < info->pktLen) {
+    printf("recv ack pkg len: %d, less than req pkg len: %d from tcp port: %d\n", iDataNum, info->pktLen, info->port);
+    return -1;
+  }
+  //printf("Read ack pkg len:%d from tcp port: %d, buffer: %s  %s\n", info->pktLen, port, recvbuf, recvbuf+iDataNum-8);
+
+  close(clientSocket);
+  return 0;
+}
+
+static int checkUdpPort(info_s *info) {
+  int   clientSocket;
+
+  struct sockaddr_in serverAddr;
+  char               sendbuf[BUFFER_SIZE];
+  char               recvbuf[BUFFER_SIZE];
+  int                iDataNum = 0;
+  if ((clientSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
+    perror("socket");
+    return -1;
+  }
+
+  // set overtime 
+  struct timeval timeout;
+  timeout.tv_sec = 2;  //s
+  timeout.tv_usec = 0; //us
+  if (setsockopt(clientSocket, SOL_SOCKET,SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
+    perror("setsockopt send timer failed:");
+  }
+  if (setsockopt(clientSocket, SOL_SOCKET,SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
+    perror("setsockopt recv timer failed:");
+  }
+  
+  serverAddr.sin_family = AF_INET;
+  serverAddr.sin_port = htons(info->port);
+  serverAddr.sin_addr.s_addr = info->hostIp;
+  
+  memset(sendbuf, 0, BUFFER_SIZE);
+  memset(recvbuf, 0, BUFFER_SIZE);
+
+  struct in_addr ipStr;
+  memcpy(&ipStr, &info->hostIp, 4);
+  sprintf(sendbuf, "client send udp pkg to %s:%d, content: 1122334455", inet_ntoa(ipStr), info->port);
+  sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
+
+  socklen_t sin_size = sizeof(*(struct sockaddr *)&serverAddr);
+
+  int code = sendto(clientSocket, sendbuf, info->pktLen, 0, (struct sockaddr *)&serverAddr, (int)sin_size);
+  if (code < 0) {
+    perror("sendto");
+    return -1;
+  }
+
+  iDataNum = recvfrom(clientSocket, recvbuf, BUFFER_SIZE, 0, (struct sockaddr *)&serverAddr, &sin_size);
+
+  if (iDataNum < info->pktLen) {
+    printf("Read ack pkg len: %d, less than req pkg len: %d from udp port: %d\t\t", iDataNum, info->pktLen, info->port);
+    return -1;
+  }
+  
+  //printf("Read ack pkg len:%d from udp port: %d, buffer: %s  %s\n", info->pktLen, port, recvbuf, recvbuf+iDataNum-8);
+  close(clientSocket);
+  return 0;
+}
+
+static void checkPort(uint32_t hostIp, uint16_t startPort, uint16_t maxPort, uint16_t pktLen) {
+  int ret;
+  info_s info;
+  memset(&info, 0, sizeof(info_s));
+  info.hostIp   = hostIp;
+  info.pktLen   = pktLen;
+
+  for (uint16_t port = startPort; port <= maxPort; port++) {
+    //printf("test: %s:%d\n", info.host, port);
+    printf("\n");
+
+    info.port = port;
+    ret = checkTcpPort(&info);
+    if (ret != 0) {
+      printf("tcp port:%d test fail.\t\n", port);
+    } else {
+      printf("tcp port:%d test ok.\t\t", port);
+    }
+    
+    ret = checkUdpPort(&info);
+    if (ret != 0) {
+      printf("udp port:%d test fail.\t\n", port);
+    } else {
+      printf("udp port:%d test ok.\t\t", port);
+    }
+  }
+  
+  printf("\n");
+  return ;
+}
+
+static void taosNetTestClient(const char* serverFqdn, uint16_t startPort, uint16_t endPort, int pktLen) {
+  uint32_t serverIp = taosGetIpFromFqdn(serverFqdn);
+  if (serverIp == 0xFFFFFFFF) {
+    printf("Failed to resolve FQDN:%s", serverFqdn); 
+    exit(-1);
+  }
+
+  checkPort(serverIp, startPort, endPort, pktLen);
+
+  return;
+}
+
+
+
+static void taosNetTestServer(uint16_t startPort, uint16_t endPort, int pktLen) {
+
+  int port = startPort;
+  int num = endPort - startPort + 1;
+
+  if (num < 0) {
+    num = 1;
+  }
+  
+  pthread_t *pids = malloc(2 * num * sizeof(pthread_t));
+  info_s *     tinfos = malloc(num * sizeof(info_s));
+  info_s *     uinfos = malloc(num * sizeof(info_s));
+
+  for (size_t i = 0; i < num; i++) {
+    info_s *tcpInfo = tinfos + i;
+    tcpInfo->port = port + i;
+    tcpInfo->pktLen = pktLen;
+
+    if (pthread_create(pids + i, NULL, bindTcpPort, tcpInfo) != 0) 
+    {
+      printf("create thread fail, port:%d.\n", port);
+      exit(-1);
+    }
+
+    info_s *udpInfo = uinfos + i;
+    udpInfo->port = port + i;
+    if (pthread_create(pids + num + i, NULL, bindUdpPort, udpInfo) != 0)
+    {                          
+      printf("create thread fail, port:%d.\n", port);
+      exit(-1);
+    }
+  }
+  
+  for (int i = 0; i < num; i++) {
+    pthread_join(pids[i], NULL);
+    pthread_join(pids[(num + i)], NULL);
+  }
+}
+
+
+void taosNetTest(const char* host, uint16_t port, uint16_t endPort, int pktLen, const char* netTestRole) {
+  if (pktLen > MAX_PKG_LEN) {
+    printf("test packet len overflow: %d, max len not greater than %d bytes\n", pktLen, MAX_PKG_LEN);
+    exit(-1);
+  }
+  
+  if (port && endPort) {
+    if (port > endPort) {
+      printf("endPort[%d] must not lesss port[%d]\n", endPort, port);
+      exit(-1);
+    }
+  }  
+ 
+  if (host && host[0] != 0) {
+    if (strlen(host) >= TSDB_EP_LEN) {
+      printf("host invalid: %s\n", host);
+      exit(-1);
+    }
+
+    taosGetFqdnPortFromEp(host, serverFqdn, &g_startPort);
+  } else {
+    tstrncpy(serverFqdn, "127.0.0.1", TSDB_IPv4ADDR_LEN);    
+    g_startPort = tsServerPort;
+  }
+  
+  if (port) {
+    g_startPort = port;
+  }
+  
+  if (endPort) {
+    g_endPort = endPort;
+  }
+  
+  if (port > endPort) {
+    printf("endPort[%d] must not lesss port[%d]\n", g_endPort, g_startPort);
+    exit(-1);
+  }
+  
+  if (0 == strcmp("client", netTestRole)) {
+    printf("host: %s\tstart port: %d\tend port: %d\tpacket len: %d\n", serverFqdn, g_startPort, g_endPort, pktLen);
+    taosNetTestClient(serverFqdn, g_startPort, g_endPort, pktLen);
+  } else if (0 == strcmp("server", netTestRole)) {
+    taosNetTestServer(g_startPort, g_endPort, pktLen);
+  }
+}
+

From 3e15d4616d01a112a211ec4abb22007c7857b67c Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 17:26:03 +0800
Subject: [PATCH 33/69] [TD-1256]

---
 src/kit/CMakeLists.txt | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/kit/CMakeLists.txt b/src/kit/CMakeLists.txt
index 3bacd426f3..77db79e220 100644
--- a/src/kit/CMakeLists.txt
+++ b/src/kit/CMakeLists.txt
@@ -3,5 +3,3 @@ PROJECT(TDengine)
 
 ADD_SUBDIRECTORY(shell)
 ADD_SUBDIRECTORY(taosdemo)
-#ADD_SUBDIRECTORY(taosClusterTest)
-ADD_SUBDIRECTORY(taosnetwork)

From bd663678772e09b580de60845da1bd743bad1cdc Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 17:26:51 +0800
Subject: [PATCH 34/69] [del taosnetwork dir]

---
 src/kit/taosnetwork/CMakeLists.txt |  10 -
 src/kit/taosnetwork/client.c       | 313 -----------------------------
 src/kit/taosnetwork/server.c       | 246 -----------------------
 3 files changed, 569 deletions(-)
 delete mode 100644 src/kit/taosnetwork/CMakeLists.txt
 delete mode 100644 src/kit/taosnetwork/client.c
 delete mode 100644 src/kit/taosnetwork/server.c

diff --git a/src/kit/taosnetwork/CMakeLists.txt b/src/kit/taosnetwork/CMakeLists.txt
deleted file mode 100644
index 9d2a5ba3f8..0000000000
--- a/src/kit/taosnetwork/CMakeLists.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
-PROJECT(TDengine)
-
-IF (TD_LINUX)
-  AUX_SOURCE_DIRECTORY(. SRC)
-  ADD_EXECUTABLE(taosClient client.c)
-  ADD_EXECUTABLE(taosServer server.c)
-  TARGET_LINK_LIBRARIES( taosServer -lpthread -lm -lrt )
-  TARGET_LINK_LIBRARIES( taosClient -lpthread -lm -lrt )
-ENDIF ()
diff --git a/src/kit/taosnetwork/client.c b/src/kit/taosnetwork/client.c
deleted file mode 100644
index b7db2ba0a2..0000000000
--- a/src/kit/taosnetwork/client.c
+++ /dev/null
@@ -1,313 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <argp.h>
-#include <arpa/inet.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <wordexp.h>
-
-#define    MAX_PKG_LEN          (64*1000)
-#define    BUFFER_SIZE          (MAX_PKG_LEN + 1024)
-#define    TEST_FQDN_LEN        128
-#define    TEST_IPv4ADDR_LEN    16
-
-typedef struct {
-  uint16_t port;
-  uint32_t hostIp;
-  char     fqdn[TEST_FQDN_LEN];
-  uint16_t pktLen;
-} info_s;
-
-typedef struct Arguments {
-  char     host[TEST_IPv4ADDR_LEN];
-  char     fqdn[TEST_FQDN_LEN];
-  uint16_t port;
-  uint16_t max_port;
-  uint16_t pktLen;
-} SArguments;
-
-static struct argp_option options[] = {
-    {0, 'h', "host ip", 0, "The host ip to connect to TDEngine. Default is localhost.", 0},
-    {0, 'p', "port", 0, "The TCP or UDP port number to use for the connection. Default is 6030.", 1},
-    {0, 'm', "max port", 0, "The max TCP or UDP port number to use for the connection. Default is 6042.", 2},
-    {0, 'f', "host fqdn", 0, "The host fqdn to connect to TDEngine.", 3},
-    {0, 'l', "test pkg len", 0, "The len of pkg for test. Default is 1000 Bytes, max not greater than 64k Bytes.\nNotes: This parameter must be consistent between the client and the server.", 3}};
-
-static error_t parse_opt(int key, char *arg, struct argp_state *state) {
-  wordexp_t full_path;
-  SArguments *arguments = state->input;
-  switch (key) {
-    case 'h':
-      if (wordexp(arg, &full_path, 0) != 0) {
-        fprintf(stderr, "Invalid host ip %s\n", arg);
-        return -1;
-      }
-      strcpy(arguments->host, full_path.we_wordv[0]);
-      wordfree(&full_path);
-      break;
-    case 'p':
-      arguments->port = atoi(arg);
-      break;
-    case 'm':
-      arguments->max_port = atoi(arg);
-      break;
-    case 'l':
-      arguments->pktLen = atoi(arg);
-      break;
-    case 'f':
-      if (wordexp(arg, &full_path, 0) != 0) {
-        fprintf(stderr, "Invalid host fqdn %s\n", arg);
-        return -1;
-      }
-      strcpy(arguments->fqdn, full_path.we_wordv[0]);
-      wordfree(&full_path);
-      break;    
-
-    default:
-      return ARGP_ERR_UNKNOWN;
-  }
-  return 0;
-}
-
-static struct argp argp = {options, parse_opt, 0, 0};
-
-int checkTcpPort(info_s *info) {
-  int   clientSocket;
-
-  struct sockaddr_in serverAddr;
-  char               sendbuf[BUFFER_SIZE];
-  char               recvbuf[BUFFER_SIZE];
-  int                iDataNum = 0;
-  if ((clientSocket = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
-    printf("socket() fail: %s\n", strerror(errno));
-    return -1;
-  }
-
-  // set send and recv overtime
-  struct timeval timeout;  
-  timeout.tv_sec = 2;  //s
-  timeout.tv_usec = 0; //us  
-  if (setsockopt(clientSocket, SOL_SOCKET,SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    perror("setsockopt send timer failed:");
-  }
-  if (setsockopt(clientSocket, SOL_SOCKET,SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    perror("setsockopt recv timer failed:");
-  }
-
-  serverAddr.sin_family = AF_INET;
-  serverAddr.sin_port = htons(info->port);
-
-  serverAddr.sin_addr.s_addr = info->hostIp;
-
-  //printf("=================================\n");
-  if (connect(clientSocket, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) < 0) {
-    printf("connect() fail: %s\t", strerror(errno));
-    return -1;
-  }
-  //printf("Connect to: %s:%d...success\n", host, port);
-  memset(sendbuf, 0, BUFFER_SIZE);
-  memset(recvbuf, 0, BUFFER_SIZE);
-
-  struct in_addr ipStr;
-  memcpy(&ipStr, &info->hostIp, 4);
-  sprintf(sendbuf, "client send tcp pkg to %s:%d, content: 1122334455", inet_ntoa(ipStr), info->port);
-  sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
-
-  send(clientSocket, sendbuf, info->pktLen, 0);
-
-  memset(recvbuf, 0, BUFFER_SIZE);
-  int   nleft, nread;
-  char *ptr = recvbuf;
-  nleft = info->pktLen;
-  while (nleft > 0) {
-    nread = recv(clientSocket, ptr, BUFFER_SIZE, 0);;
-  
-    if (nread == 0) {
-      break;
-    } else if (nread < 0) {
-      if (errno == EINTR) {
-        continue;
-      } else {
-        printf("recv ack pkg from TCP port: %d fail:%s.\n", info->port, strerror(errno));
-        close(clientSocket);
-        return -1;
-      }
-    } else {
-      nleft -= nread;
-      ptr += nread;
-      iDataNum += nread;
-    }      
-  }
-
-  if (iDataNum < info->pktLen) {
-    printf("recv ack pkg len: %d, less than req pkg len: %d from tcp port: %d\n", iDataNum, info->pktLen, info->port);
-    return -1;
-  }
-  //printf("Read ack pkg len:%d from tcp port: %d, buffer: %s  %s\n", info->pktLen, port, recvbuf, recvbuf+iDataNum-8);
-
-  close(clientSocket);
-  return 0;
-}
-
-int checkUdpPort(info_s *info) {
-  int   clientSocket;
-
-  struct sockaddr_in serverAddr;
-  char               sendbuf[BUFFER_SIZE];
-  char               recvbuf[BUFFER_SIZE];
-  int                iDataNum = 0;
-  if ((clientSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
-    perror("socket");
-    return -1;
-  }
-
-  // set overtime 
-  struct timeval timeout;
-  timeout.tv_sec = 2;  //s
-  timeout.tv_usec = 0; //us
-  if (setsockopt(clientSocket, SOL_SOCKET,SO_SNDTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    perror("setsockopt send timer failed:");
-  }
-  if (setsockopt(clientSocket, SOL_SOCKET,SO_RCVTIMEO, (char *)&timeout, sizeof(struct timeval)) == -1) {
-    perror("setsockopt recv timer failed:");
-  }
-  
-  serverAddr.sin_family = AF_INET;
-  serverAddr.sin_port = htons(info->port);
-  serverAddr.sin_addr.s_addr = info->hostIp;
-  
-  memset(sendbuf, 0, BUFFER_SIZE);
-  memset(recvbuf, 0, BUFFER_SIZE);
-
-  struct in_addr ipStr;
-  memcpy(&ipStr, &info->hostIp, 4);
-  sprintf(sendbuf, "client send udp pkg to %s:%d, content: 1122334455", inet_ntoa(ipStr), info->port);
-  sprintf(sendbuf + info->pktLen - 16, "1122334455667788");
-
-  socklen_t sin_size = sizeof(*(struct sockaddr *)&serverAddr);
-
-  int code = sendto(clientSocket, sendbuf, info->pktLen, 0, (struct sockaddr *)&serverAddr, (int)sin_size);
-  if (code < 0) {
-    perror("sendto");
-    return -1;
-  }
-
-  iDataNum = recvfrom(clientSocket, recvbuf, BUFFER_SIZE, 0, (struct sockaddr *)&serverAddr, &sin_size);
-
-  if (iDataNum < info->pktLen) {
-    printf("Read ack pkg len: %d, less than req pkg len: %d from udp port: %d\t\t", iDataNum, info->pktLen, info->port);
-    return -1;
-  }
-  
-  //printf("Read ack pkg len:%d from udp port: %d, buffer: %s  %s\n", info->pktLen, port, recvbuf, recvbuf+iDataNum-8);
-  close(clientSocket);
-  return 0;
-}
-
-int32_t getIpFromFqdn(const char *fqdn, uint32_t* ip) {
-  struct addrinfo hints = {0};
-  hints.ai_family = AF_UNSPEC;
-  hints.ai_socktype = SOCK_STREAM;
-
-  struct addrinfo *result = NULL;
-
-  int32_t ret = getaddrinfo(fqdn, NULL, &hints, &result);
-  if (result) {
-    struct sockaddr *sa = result->ai_addr;
-    struct sockaddr_in *si = (struct sockaddr_in*)sa;
-    struct in_addr ia = si->sin_addr;
-    *ip = ia.s_addr;
-    freeaddrinfo(result);
-    return 0;
-  } else {
-    printf("Failed get the ip address from fqdn:%s, code:%d, reason:%s", fqdn, ret, gai_strerror(ret));
-    return -1;
-  }
-}
-
-void checkPort(uint32_t hostIp, uint16_t startPort, uint16_t maxPort, uint16_t pktLen) {
-  int ret;
-  info_s info;
-  memset(&info, 0, sizeof(info_s));
-  info.hostIp   = hostIp;
-  info.pktLen   = pktLen;
-
-  for (uint16_t port = startPort; port <= maxPort; port++) {
-    //printf("test: %s:%d\n", info.host, port);
-    printf("\n");
-
-    info.port = port;
-    ret = checkTcpPort(&info);
-    if (ret != 0) {
-      printf("tcp port:%d test fail.\t\n", port);
-    } else {
-      printf("tcp port:%d test ok.\t\t", port);
-    }
-    
-    ret = checkUdpPort(&info);
-    if (ret != 0) {
-      printf("udp port:%d test fail.\t\n", port);
-    } else {
-      printf("udp port:%d test ok.\t\t", port);
-    }
-  }
-  
-  printf("\n");
-  return ;
-}
-
-int main(int argc, char *argv[]) {
-  SArguments arguments = {"127.0.0.1", "", 6030, 6042, 1000};
-  int        ret;
-  
-  argp_parse(&argp, argc, argv, 0, 0, &arguments);
-  if (arguments.pktLen > MAX_PKG_LEN) {
-    printf("test pkg len overflow: %d, max len not greater than %d bytes\n", arguments.pktLen, MAX_PKG_LEN);
-    exit(0);
-  }
-
-  printf("host ip: %s\thost fqdn: %s\tport: %d\tmax_port: %d\tpkgLen: %d\n", arguments.host, arguments.fqdn, arguments.port, arguments.max_port, arguments.pktLen);
-
-  if (arguments.host[0] != 0) {
-    printf("\nstart connect to %s test:\n", arguments.host);
-    checkPort(inet_addr(arguments.host), arguments.port, arguments.max_port, arguments.pktLen);
-    printf("\n");
-  }
-
-  if (arguments.fqdn[0] != 0) {
-    uint32_t hostIp = 0;
-    ret = getIpFromFqdn(arguments.fqdn, &hostIp);
-    if (ret) {
-      printf("\n");
-      return 0;    
-    }
-    printf("\nstart connetc to %s test:\n", arguments.fqdn);
-    checkPort(hostIp, arguments.port, arguments.max_port, arguments.pktLen);
-    printf("\n");
-  }
-
-  return 0;
-}
diff --git a/src/kit/taosnetwork/server.c b/src/kit/taosnetwork/server.c
deleted file mode 100644
index 97be1d3b63..0000000000
--- a/src/kit/taosnetwork/server.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <argp.h>
-#include <arpa/inet.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <pthread.h>
-
-#define MAX_PKG_LEN (64*1000)
-#define BUFFER_SIZE (MAX_PKG_LEN + 1024)
-
-typedef struct {
-  int port;
-  uint16_t pktLen;
-} info_s;
-
-typedef struct Arguments {
-  char *   host;
-  uint16_t port;
-  uint16_t max_port;
-  uint16_t pktLen;
-} SArguments;
-
-static struct argp_option options[] = {
-    {0, 'h', "host", 0, "The host to connect to TDEngine. Default is localhost.", 0},
-    {0, 'p', "port", 0, "The TCP or UDP port number to use for the connection. Default is 6041.", 1},
-    {0, 'm', "max port", 0, "The max TCP or UDP port number to use for the connection. Default is 6060.", 2},
-    {0, 'l', "test pkg len", 0, "The len of pkg for test. Default is 1000 Bytes, max not greater than 64k Bytes.\nNotes: This parameter must be consistent between the client and the server.", 3}};
-
-static error_t parse_opt(int key, char *arg, struct argp_state *state) {
-
-  SArguments *arguments = state->input;
-  switch (key) {
-    case 'h':
-      arguments->host = arg;
-      break;
-    case 'p':
-      arguments->port = atoi(arg);
-      break;
-    case 'm':
-      arguments->max_port = atoi(arg);
-      break;
-    case 'l':
-      arguments->pktLen = atoi(arg);
-      break;
-
-    default:
-      return ARGP_ERR_UNKNOWN;
-  }
-  return 0;
-}
-
-static struct argp argp = {options, parse_opt, 0, 0};
-
-static void *bindTcpPort(void *sarg) {
-  info_s *pinfo = (info_s *)sarg;
-  int   port = pinfo->port;
-  int   serverSocket;
-
-  struct sockaddr_in server_addr;
-  struct sockaddr_in clientAddr;
-  int                addr_len = sizeof(clientAddr);
-  int                client;
-  char               buffer[BUFFER_SIZE];
-  int                iDataNum = 0;
-
-  if ((serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
-    printf("socket() fail: %s", strerror(errno));
-    return NULL;
-  }
-
-  bzero(&server_addr, sizeof(server_addr));
-  server_addr.sin_family = AF_INET;
-  server_addr.sin_port = htons(port);
-  server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
-
-  if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
-    printf("port:%d bind() fail: %s", port, strerror(errno));
-    return NULL;
-  }
-
-  if (listen(serverSocket, 5) < 0) {
-    printf("listen() fail: %s", strerror(errno));
-    return NULL;
-  }
-
-  //printf("Bind port: %d success\n", port);
-  while (1) {
-    client = accept(serverSocket, (struct sockaddr *)&clientAddr, (socklen_t *)&addr_len);
-    if (client < 0) {
-      printf("accept() fail: %s", strerror(errno));
-      continue;
-    }
-
-    memset(buffer, 0, BUFFER_SIZE);
-    int   nleft, nread;
-    char *ptr = buffer;
-    nleft = pinfo->pktLen;
-    while (nleft > 0) {
-      nread = recv(client, ptr, BUFFER_SIZE, 0);
-
-      if (nread == 0) {
-        break;
-      } else if (nread < 0) {
-        if (errno == EINTR) {
-          continue;
-        } else {
-          printf("recv Client: %s pkg from TCP port: %d fail:%s.\n", inet_ntoa(clientAddr.sin_addr), port, strerror(errno));
-          close(serverSocket);
-          return NULL;
-        }
-      } else {
-        nleft -= nread;
-        ptr += nread;
-        iDataNum += nread;
-      }      
-    }
-    
-    printf("recv Client: %s pkg from TCP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
-    if (iDataNum > 0) {
-      send(client, buffer, iDataNum, 0);
-    }
-  }
-  
-  close(serverSocket);
-  return NULL;
-}
-
-static void *bindUdpPort(void *sarg) {
-  info_s *pinfo = (info_s *)sarg;
-  int   port = pinfo->port;
-  int   serverSocket;
-
-  struct sockaddr_in server_addr;
-  struct sockaddr_in clientAddr;
-  char               buffer[BUFFER_SIZE];
-  int                iDataNum;
-    
-  if ((serverSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
-    perror("socket");
-    return NULL;
-  }
-
-  bzero(&server_addr, sizeof(server_addr));
-  server_addr.sin_family = AF_INET;
-  server_addr.sin_port = htons(port);
-  server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
-
-  if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
-    perror("connect");
-    return NULL;
-  }
-
-  socklen_t sin_size;
-
-  while (1) {
-    memset(buffer, 0, BUFFER_SIZE);
-
-    sin_size = sizeof(*(struct sockaddr *)&server_addr);
-
-    iDataNum = recvfrom(serverSocket, buffer, BUFFER_SIZE, 0, (struct sockaddr *)&clientAddr, &sin_size);
-
-    if (iDataNum < 0) {
-      perror("recvfrom null");
-      continue;
-    }
-    if (iDataNum > 0) {
-      printf("recv Client: %s pkg from UDP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
-      //printf("Read msg from udp:%s ... %s\n", buffer, buffer+iDataNum-16);
-
-      sendto(serverSocket, buffer, iDataNum, 0, (struct sockaddr *)&clientAddr, (int)sin_size);
-    }
-  }
-
-  close(serverSocket);
-  return NULL;
-}
-
-
-int main(int argc, char *argv[]) {
-  SArguments arguments = {"127.0.0.1", 6030, 6042, 1000};
-  argp_parse(&argp, argc, argv, 0, 0, &arguments);
-  if (arguments.pktLen > MAX_PKG_LEN) {
-    printf("test pkg len overflow: %d, max len not greater than %d bytes\n", arguments.pktLen, MAX_PKG_LEN);
-    exit(0);
-  }
-
-  int port = arguments.port;
-
-  int num = arguments.max_port - arguments.port + 1;
-
-  if (num < 0) {
-    num = 1;
-  }
-  pthread_t *pids = malloc(2 * num * sizeof(pthread_t));
-  info_s *     tinfos = malloc(num * sizeof(info_s));
-  info_s *     uinfos = malloc(num * sizeof(info_s));
-
-  for (size_t i = 0; i < num; i++) {
-    info_s *tcpInfo = tinfos + i;
-    tcpInfo->port = port + i;
-    tcpInfo->pktLen = arguments.pktLen;
-
-    if (pthread_create(pids + i, NULL, bindTcpPort, tcpInfo) != 0) 
-    {
-      printf("create thread fail, port:%d.\n", port);
-      exit(-1);
-    }
-
-    info_s *udpInfo = uinfos + i;
-    udpInfo->port = port + i;
-    if (pthread_create(pids + num + i, NULL, bindUdpPort, udpInfo) != 0)
-    {                          
-      printf("create thread fail, port:%d.\n", port);
-      exit(-1);
-    }
-  }
-  
-  for (int i = 0; i < num; i++) {
-    pthread_join(pids[i], NULL);
-    pthread_join(pids[(num + i)], NULL);
-  }
-}

From bc5e56517a03755abf31266d49a915ef4cb50a4a Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 17:30:59 +0800
Subject: [PATCH 35/69] [TD-1256]

---
 src/kit/shell/src/shellLinux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/kit/shell/src/shellLinux.c b/src/kit/shell/src/shellLinux.c
index 284b7991ea..6c09d5c9d0 100644
--- a/src/kit/shell/src/shellLinux.c
+++ b/src/kit/shell/src/shellLinux.c
@@ -46,7 +46,7 @@ static struct argp_option options[] = {
   {"thread",     'T', "THREADNUM",  0,                   "Number of threads when using multi-thread to import data."},
   {"database",   'd', "DATABASE",   0,                   "Database to use when connecting to the server."},
   {"timezone",   't', "TIMEZONE",   0,                   "Time zone of the shell, default is local."},
-  {"netrole",    'n', "NETROLE",    0,                   "Net role when testing, default is NULL, valid option: client | server."},
+  {"netrole",    'n', "NETROLE",    0,                   "Net role when network connectivity test, default is NULL, valid option: client | server."},
   {"endport",    'e', "ENDPORT",    0,                   "Net test end port, default is 6042."},
   {"pktlen",     'l', "PKTLEN",     0,                   "Packet length used for net test, default is 1000 bytes."},
   {0}};

From 69a8be542de56c44a64488927f7a9136987e789b Mon Sep 17 00:00:00 2001
From: Ping Xiao <pxiao@taosdata.com>
Date: Mon, 31 Aug 2020 16:00:15 +0800
Subject: [PATCH 36/69] udpate tests cases for defects

---
 tests/pytest/query/filterOtherTypes.py | 48 ++++++++++++++++++++++++++
 tests/pytest/query/queryJoin.py        | 26 ++++++++++++++
 tests/pytest/tag_lite/float.py         | 17 ---------
 3 files changed, 74 insertions(+), 17 deletions(-)

diff --git a/tests/pytest/query/filterOtherTypes.py b/tests/pytest/query/filterOtherTypes.py
index 5033ffdb48..85d5a67bef 100644
--- a/tests/pytest/query/filterOtherTypes.py
+++ b/tests/pytest/query/filterOtherTypes.py
@@ -365,6 +365,54 @@ class TDTestCase:
         # _ for binary type on tag case 5
         tdSql.query("select * from st where tagcol3 like '_据'")
         tdSql.checkRows(0)
+        
+        # test case for https://jira.taosdata.com:18080/browse/TD-857
+        tdSql.execute("create database test")
+        tdSql.execute("use test")
+        tdSql.execute("create table meters(ts timestamp, voltage int) tags(tag1 binary(20))")
+        tdSql.execute("create table t1 using meters tags('beijing')")
+        tdSql.execute("create table t2 using meters tags('nanjing')")        
+
+        tdSql.execute("insert into t1 values(1538548685000, 1) (1538548685001, 2) (1538548685002, 3)")
+        tdSql.execute("insert into t2 values(1538548685000, 4) (1538548685001, 5) (1538548685002, 6)")
+
+        tdSql.query("select * from t1 where tag1 like '%g'")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from t2 where tag1 like '%g'")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from meters where tag1 like '%g'")
+        tdSql.checkRows(6)
+
+        tdSql.execute("create table meters1(ts timestamp, voltage int) tags(tag1 nchar(20))")
+        tdSql.execute("create table t3 using meters1 tags('北京')")
+        tdSql.execute("create table t4 using meters1 tags('南京')")
+        tdSql.execute("create table t5 using meters1 tags('beijing')")
+        tdSql.execute("create table t6 using meters1 tags('nanjing')")        
+
+        tdSql.execute("insert into t3 values(1538548685000, 1) (1538548685001, 2) (1538548685002, 3)")
+        tdSql.execute("insert into t4 values(1538548685000, 4) (1538548685001, 5) (1538548685002, 6)")
+        tdSql.execute("insert into t5 values(1538548685000, 1) (1538548685001, 2) (1538548685002, 3)")
+        tdSql.execute("insert into t6 values(1538548685000, 1) (1538548685001, 2) (1538548685002, 3)")
+
+        tdSql.query("select * from t3 where tag1 like '%京'")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from t4 where tag1 like '%京'")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from meters1 where tag1 like '%京'")
+        tdSql.checkRows(6)
+        
+        tdSql.query("select * from t5 where tag1 like '%g'")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from t6 where tag1 like '%g'")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from meters1 where tag1 like '%g'")
+        tdSql.checkRows(6)
 
     def stop(self):
         tdSql.close()
diff --git a/tests/pytest/query/queryJoin.py b/tests/pytest/query/queryJoin.py
index 6ea240a334..17027cf498 100644
--- a/tests/pytest/query/queryJoin.py
+++ b/tests/pytest/query/queryJoin.py
@@ -114,6 +114,32 @@ class TDTestCase:
 
         tdSql.error("select stb_t.ts, stb_t.dscrption, stb_t.temperature, stb_t.pid, stb_p.id, stb_p.dscrption, stb_p.pressure,stb_v.velocity from stb_p, stb_t, stb_v where stb_p.ts=stb_t.ts and stb_p.ts=stb_v.ts and stb_p.id = stb_t.id")
 
+        # test case for https://jira.taosdata.com:18080/browse/TD-1250
+        
+        tdSql.execute("create table meters1(ts timestamp, voltage int) tags(tag1 binary(20), tag2 nchar(20))")
+        tdSql.execute("create table t1 using meters1 tags('beijing', 'chaoyang')")
+        tdSql.execute("create table t2 using meters1 tags('shanghai', 'xuhui')") 
+        tdSql.execute("insert into t1 values(1538548685000, 1) (1538548685001, 2) (1538548685002, 3)")
+        tdSql.execute("insert into t1 values(1538548685004, 4) (1538548685004, 5) (1538548685005, 6)")
+
+        tdSql.execute("create table meters2(ts timestamp, voltage int) tags(tag1 binary(20), tag2 nchar(20))")
+        tdSql.execute("create table t3 using meters2 tags('beijing', 'chaoyang')")
+        tdSql.execute("create table t4 using meters2 tags('shenzhen', 'nanshan')")        
+        tdSql.execute("insert into t3 values(1538548685000, 7) (1538548685001, 8) (1538548685002, 9)")
+        tdSql.execute("insert into t4 values(1538548685000, 10) (1538548685001, 11) (1538548685002, 12)")
+
+        tdSql.execute("create table meters3(ts timestamp, voltage int) tags(tag1 binary(20), tag2 nchar(20))")
+        
+        tdSql.query("select * from meters1, meters2 where meters1.ts = meters2.ts and meters1.tag1 = meters2.tag1")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from meters1, meters2 where meters1.ts = meters2.ts and meters1.tag2 = meters2.tag2")
+        tdSql.checkRows(3)
+
+        tdSql.query("select * from meters1, meters3 where meters1.ts = meters3.ts and meters1.tag1 = meters3.tag1")
+        tdSql.checkRows(0)
+
+
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)
diff --git a/tests/pytest/tag_lite/float.py b/tests/pytest/tag_lite/float.py
index 9c4d20e82b..7b93cb0ac9 100644
--- a/tests/pytest/tag_lite/float.py
+++ b/tests/pytest/tag_lite/float.py
@@ -575,23 +575,6 @@ class TDTestCase:
         # TSIM: system sh/exec.sh -n dnode1 -s stop -x SIGINT
 # convert end
 
-        tdSql.execute("create database db")
-        tdSql.execute("use db")
-        tdSql.execute(
-            "create table if not exists st (ts timestamp, tagtype int) tags(dev float)")
-        tdSql.error(
-            'CREATE TABLE if not exists dev_001 using st tags(%f)' % -3.4E38 - 1)
-        tdSql.error(
-            'CREATE TABLE if not exists dev_001 using st tags(%f)' % 3.4E38 + 1)
-        
-        tdSql.execute(
-            'CREATE TABLE if not exists dev_001 using st tags(%f)' % 3.4E38)
-        tdSql.execute(
-            'CREATE TABLE if not exists dev_002 using st tags(%f)' % -3.4E38)
-          
-        tdSql.query("show tables")
-        tdSql.checkRows(2)  
-
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)

From c6ea0110baa33cba78e593c8ba2e950c138392bd Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sdsang@taosdata.com>
Date: Mon, 31 Aug 2020 18:12:50 +0800
Subject: [PATCH 37/69] fix timestamp precision description.

---
 documentation20/webdocs/markdowndocs/TAOS SQL-ch.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md b/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md
index 293aac8d23..b78200be04 100644
--- a/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md	
+++ b/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md	
@@ -42,7 +42,7 @@ TDengine缺省的时间戳是毫秒精度，但通过修改配置参数enableMic
 
 |      |   类型    | Bytes  | 说明                                                         |
 | ---- | :-------: | ------ | ------------------------------------------------------------ |
-| 1    | TIMESTAMP | 8      | 时间戳。最小精度毫秒。从格林威治时间 1970-01-01 00:00:00.000 (UTC/GMT) 开始，计时不能早于该时间。 |
+| 1    | TIMESTAMP | 8      | 时间戳。缺省精度毫秒，可支持微秒。从格林威治时间 1970-01-01 00:00:00.000 (UTC/GMT) 开始，计时不能早于该时间。 |
 | 2    |    INT    | 4      | 整型，范围 [-2^31+1,   2^31-1], -2^31用作Null           |
 | 3    |  BIGINT   | 8      | 长整型，范围 [-2^63+1,   2^63-1], -2^63用于NULL                                 |
 | 4    |   FLOAT   | 4      | 浮点型，有效位数6-7，范围 [-3.4E38, 3.4E38]                  |

From c043a7715a13948c2a5d11692afbe84b1264bf5a Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 31 Aug 2020 18:47:31 +0800
Subject: [PATCH 38/69] [add Integrating network connectivity test into Taos
 program]

---
 .../webdocs/markdowndocs/faq-ch.md            | 54 ++++++++++++++++++-
 1 file changed, 52 insertions(+), 2 deletions(-)

diff --git a/documentation20/webdocs/markdowndocs/faq-ch.md b/documentation20/webdocs/markdowndocs/faq-ch.md
index 2b51458f27..266aea4c51 100644
--- a/documentation20/webdocs/markdowndocs/faq-ch.md
+++ b/documentation20/webdocs/markdowndocs/faq-ch.md
@@ -24,21 +24,71 @@
 客户端遇到链接故障，请按照下面的步骤进行检查：
 
 1. 检查网络环境
-    * 云服务器：检查云服务器的安全组是否打开TCP/UDP 端口6030-6039的访问权限
+    * 云服务器：检查云服务器的安全组是否打开TCP/UDP 端口6030-6042的访问权限
     * 本地虚拟机：检查网络能否ping通，尽量避免使用`localhost` 作为hostname
     * 公司服务器：如果为NAT网络环境，请务必检查服务器能否将消息返回值客户端
+    
 2. 确保客户端与服务端版本号是完全一致的，开源社区版和企业版也不能混用
+
 3. 在服务器，执行 `systemctl status taosd` 检查*taosd*运行状态。如果没有运行，启动*taosd*
+
 4. 确认客户端连接时指定了正确的服务器FQDN (Fully Qualified Domain Name(可在服务器上执行Linux命令hostname -f获得）
+
 5. ping服务器FQDN，如果没有反应，请检查你的网络，DNS设置，或客户端所在计算机的系统hosts文件
-6. 检查防火墙设置，确认TCP/UDP 端口6030-6039 是打开的
+
+6. 检查防火墙设置，确认TCP/UDP 端口6030-6042 是打开的
+
 7. 对于Linux上的JDBC（ODBC, Python, Go等接口类似）连接, 确保*libtaos.so*在目录*/usr/local/lib/taos*里, 并且*/usr/local/lib/taos*在系统库函数搜索路径*LD_LIBRARY_PATH*里 
+
 8. 对于windows上的JDBC, ODBC, Python, Go等连接，确保*driver/c/taos.dll*在你的系统搜索目录里 (建议*taos.dll*放在目录 *C:\Windows\System32*)
+
 9. 如果仍不能排除连接故障，请使用命令行工具nc来分别判断指定端口的TCP和UDP连接是否通畅
    检查UDP端口连接是否工作：`nc -vuz {hostIP} {port} `
    检查服务器侧TCP端口连接是否工作：`nc -l {port}`
    检查客户端侧TCP端口链接是否工作：`nc {hostIP} {port}`
+   
+10. 可以使用taos程序内嵌的网络连通检测功能：验证服务器和客户端之间指定的端口连接是否通畅（包括TCP和UDP）。
 
+    taos通过参数 -n 来确定运行服务端功能，还是客户端功能。-n server：表示运行检测服务端功能；-n client：表示运行检测客户端功能。
+
+    1）首先在服务器上停止taosd服务；
+
+    2）在服务器上运行taos内嵌的网络连通检测的服务端功能：taos -n server -P 6030 -e 6042 -l 1000；
+
+    3）在客户端运行taos内嵌的网络连通检测的客户端功能：taos -n client -h host -P 6030 -e 6042 -l 1000；
+
+    -n ：指示运行网络连通检测的服务端功能，或客户端功能，缺省值为空，表示不启动网络连通检测；
+
+    -h：指示服务端名称，可以是ip地址或fqdn格式。如：192.168.1.160，或 192.168.1.160:6030，或 hostname1，或hostname1:6030。缺省值是127.0.01。
+
+    -P ：检测的起始端口号，缺省值是6030；
+
+    -e：检测的结束端口号，必须大于等于起始端口号，缺省值是6042；
+
+    -l：指定检测端口连通的报文长度，最大64000字节，缺省值是1000字节；
+
+    服务端设置的起始端口和结束端口号，必须包含客户端设置的起始端口和结束端口号；
+
+    对于客户端，起始端口号的有三种方式：缺省值、-h指定、-P指定，优先级是：-P指定 > -h指定 > 缺省值。
+
+    客户端运行的输出样例：
+
+    `sum@sum-virtualBox /home/sum $ taos -n client -h ubuntu-vbox6
+    host: ubuntu-vbox6	start port: 6030	end port: 6042	packet len: 1000
+
+    tcp port:6030 test ok.		udp port:6030 test ok.
+    tcp port:6031 test ok.		udp port:6031 test ok.
+    tcp port:6032 test ok.		udp port:6032 test ok.
+    tcp port:6033 test ok.		udp port:6033 test ok.
+    tcp port:6034 test ok.		udp port:6034 test ok.
+    tcp port:6035 test ok.		udp port:6035 test ok.
+    tcp port:6036 test ok.		udp port:6036 test ok.
+    tcp port:6037 test ok.		udp port:6037 test ok.
+    tcp port:6038 test ok.		udp port:6038 test ok.
+    tcp port:6039 test ok.		udp port:6039 test ok.
+    tcp port:6040 test ok.		udp port:6040 test ok.
+    tcp port:6041 test ok.		udp port:6041 test ok.
+    tcp port:6042 test ok.		udp port:6042 test ok.`
 
 ## 6. 遇到错误“Unexpected generic error in RPC”， 我怎么办？
 产生这个错误，是由于客户端或数据节点无法解析FQDN(Fully Qualified Domain Name)导致。对于TAOS Shell或客户端应用，请做如下检查：

From ea4be8f3c712e976e752be7912f518af091e1424 Mon Sep 17 00:00:00 2001
From: Ping Xiao <pxiao@taosdata.com>
Date: Mon, 31 Aug 2020 19:31:37 +0800
Subject: [PATCH 39/69] updates for Java Connector

---
 .../webdocs/markdowndocs/Documentation-ch.md  |   2 +-
 .../webdocs/markdowndocs/connector-ch.md      | 374 +-----------------
 .../webdocs/markdowndocs/connector-java-ch.md | 370 +++++++++++++++++
 3 files changed, 374 insertions(+), 372 deletions(-)
 create mode 100644 documentation20/webdocs/markdowndocs/connector-java-ch.md

diff --git a/documentation20/webdocs/markdowndocs/Documentation-ch.md b/documentation20/webdocs/markdowndocs/Documentation-ch.md
index 12b1b1bd3a..4d593cec90 100644
--- a/documentation20/webdocs/markdowndocs/Documentation-ch.md
+++ b/documentation20/webdocs/markdowndocs/Documentation-ch.md
@@ -52,7 +52,7 @@ TDengine是一个高效的存储、查询、分析时序大数据的平台，专
 ## [连接器](https://www.taosdata.com/cn/documentation20/connector)
 
 - [C/C++ Connector](https://www.taosdata.com/cn/documentation20/connector/#C/C++-Connector)：通过libtaos客户端的库，连接TDengine服务器的主要方法
-- [Java Connector(JDBC)](https://www.taosdata.com/cn/documentation20/connector/#Java-Connector)：通过标准的JDBC API，给Java应用提供到TDengine的连接
+- [Java Connector(JDBC)](https://www.taosdata.com/cn/documentation20/connector-java)：通过标准的JDBC API，给Java应用提供到TDengine的连接
 - [Python Connector](https://www.taosdata.com/cn/documentation20/connector/#Python-Connector)：给Python应用提供一个连接TDengine服务器的驱动
 - [RESTful Connector](https://www.taosdata.com/cn/documentation20/connector/#RESTful-Connector)：提供一最简单的连接TDengine服务器的方式
 - [Go Connector](https://www.taosdata.com/cn/documentation20/connector/#Go-Connector)：给Go应用提供一个连接TDengine服务器的驱动
diff --git a/documentation20/webdocs/markdowndocs/connector-ch.md b/documentation20/webdocs/markdowndocs/connector-ch.md
index 6b22004c43..7b6afb75a7 100644
--- a/documentation20/webdocs/markdowndocs/connector-ch.md
+++ b/documentation20/webdocs/markdowndocs/connector-ch.md
@@ -280,365 +280,10 @@ TDengine提供时间驱动的实时流式计算API。可以每隔一指定的时
   取消订阅。 如参数 `keepProgress` 不为0，API会保留订阅的进度信息，后续调用 `taos_subscribe` 时可以基于此进度继续；否则将删除进度信息，后续只能重新开始读取数据。
 
 
-##  Java Connector
-
-TDengine 为了方便 Java 应用使用，提供了遵循 JDBC 标准(3.0)API 规范的 `taos-jdbcdriver` 实现。目前可以通过 [Sonatype Repository][1] 搜索并下载。
-
-由于 TDengine 是使用 c 语言开发的，使用 taos-jdbcdriver 驱动包时需要依赖系统对应的本地函数库。
-
-* libtaos.so 
-    在 linux 系统中成功安装 TDengine 后，依赖的本地函数库 libtaos.so 文件会被自动拷贝至 /usr/lib/libtaos.so，该目录包含在 Linux 自动扫描路径上，无需单独指定。
-    
-* taos.dll
-    在 windows 系统中安装完客户端之后，驱动包依赖的 taos.dll 文件会自动拷贝到系统默认搜索路径 C:/Windows/System32 下，同样无需要单独指定。
-    
-> 注意：在 windows 环境开发时需要安装 TDengine 对应的 [windows 客户端][14]，Linux 服务器安装完 TDengine 之后默认已安装 client，也可以单独安装 [Linux 客户端][15] 连接远程 TDengine Server。
-
-TDengine 的 JDBC 驱动实现尽可能的与关系型数据库驱动保持一致，但时序空间数据库与关系对象型数据库服务的对象和技术特征的差异导致 taos-jdbcdriver 并未完全实现 JDBC 标准规范。在使用时需要注意以下几点：
-
-* TDengine 不提供针对单条数据记录的删除和修改的操作，驱动中也没有支持相关方法。
-* 由于不支持删除和修改，所以也不支持事务操作。
-* 目前不支持表间的 union 操作。
-* 目前不支持嵌套查询(nested query)，对每个 Connection 的实例，至多只能有一个打开的 ResultSet 实例；如果在 ResultSet还没关闭的情况下执行了新的查询，TSDBJDBCDriver 则会自动关闭上一个 ResultSet。
-
-
-## TAOS-JDBCDriver 版本以及支持的 TDengine 版本和 JDK 版本
-
-| taos-jdbcdriver 版本 | TDengine 版本 | JDK 版本 |
-| --- | --- | --- |
-| 2.0.2 | 2.0.0.x 及以上 | 1.8.x |
-| 1.0.3 | 1.6.1.x 及以上 | 1.8.x |
-| 1.0.2 | 1.6.1.x 及以上 | 1.8.x |
-| 1.0.1 | 1.6.1.x 及以上 | 1.8.x |
-
-## TDengine DataType 和 Java DataType
-
-TDengine 目前支持时间戳、数字、字符、布尔类型，与 Java 对应类型转换如下：
-
-| TDengine DataType | Java DataType |
-| --- | --- |
-| TIMESTAMP | java.sql.Timestamp |
-| INT | java.lang.Integer |
-| BIGINT | java.lang.Long |
-| FLOAT | java.lang.Float |
-| DOUBLE | java.lang.Double |
-| SMALLINT, TINYINT |java.lang.Short  |
-| BOOL | java.lang.Boolean |
-| BINARY, NCHAR | java.lang.String |
-
-## 如何获取 TAOS-JDBCDriver
-
-### maven 仓库
-
-目前 taos-jdbcdriver 已经发布到 [Sonatype Repository][1] 仓库，且各大仓库都已同步。
-* [sonatype][8]
-* [mvnrepository][9]
-* [maven.aliyun][10]
-
-maven 项目中使用如下 pom.xml 配置即可：
-
-```xml
-<dependency>
-  <groupId>com.taosdata.jdbc</groupId>
-  <artifactId>taos-jdbcdriver</artifactId>
-  <version>2.0.2</version>
-</dependency>
-```
-
-### 源码编译打包
-
-下载 [TDengine][3] 源码之后，进入 taos-jdbcdriver 源码目录 `src/connector/jdbc` 执行 `mvn clean package` 即可生成相应 jar 包。
-
-
-## 使用说明
-
-### 获取连接
-
-如下所示配置即可获取 TDengine Connection：
-```java
-Class.forName("com.taosdata.jdbc.TSDBDriver");
-String jdbcUrl = "jdbc:TAOS://127.0.0.1:6030/log?user=root&password=taosdata";
-Connection conn = DriverManager.getConnection(jdbcUrl);
-```
-> 端口 6030 为默认连接端口，JDBC URL 中的 log 为系统本身的监控数据库。
-
-TDengine 的 JDBC URL 规范格式为：
-`jdbc:TAOS://{host_ip}:{port}/[database_name]?[user={user}|&password={password}|&charset={charset}|&cfgdir={config_dir}|&locale={locale}|&timezone={timezone}]`
-
-其中，`{}` 中的内容必须，`[]` 中为可选。配置参数说明如下：
-
-* user：登录 TDengine 用户名，默认值 root。
-* password：用户登录密码，默认值 taosdata。
-* charset：客户端使用的字符集，默认值为系统字符集。
-* cfgdir：客户端配置文件目录路径，Linux OS 上默认值 /etc/taos ，Windows OS 上默认值 C:/TDengine/cfg。
-* locale：客户端语言环境，默认值系统当前 locale。
-* timezone：客户端使用的时区，默认值为系统当前时区。
-
-以上参数可以在 3 处配置，`优先级由高到低`分别如下：
-1. JDBC URL 参数
-    如上所述，可以在 JDBC URL 的参数中指定。
-2. java.sql.DriverManager.getConnection(String jdbcUrl, Properties connProps)
-```java
-public Connection getConn() throws Exception{
-  Class.forName("com.taosdata.jdbc.TSDBDriver");
-  String jdbcUrl = "jdbc:TAOS://127.0.0.1:0/log?user=root&password=taosdata";
-  Properties connProps = new Properties();
-  connProps.setProperty(TSDBDriver.PROPERTY_KEY_USER, "root");
-  connProps.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD, "taosdata");
-  connProps.setProperty(TSDBDriver.PROPERTY_KEY_CONFIG_DIR, "/etc/taos");
-  connProps.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
-  connProps.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
-  connProps.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-  Connection conn = DriverManager.getConnection(jdbcUrl, connProps);
-  return conn;
-}
-```
-
-3. 客户端配置文件 taos.cfg
-
-    linux 系统默认配置文件为 /var/lib/taos/taos.cfg，windows 系统默认配置文件路径为 C:\TDengine\cfg\taos.cfg。
-```properties
-# client default username
-# defaultUser           root
-
-# client default password
-# defaultPass           taosdata
-
-# default system charset
-# charset               UTF-8
-
-# system locale
-# locale                en_US.UTF-8
-```
-> 更多详细配置请参考[客户端配置][13]
-
-### 创建数据库和表
-
-```java
-Statement stmt = conn.createStatement();
-
-// create database
-stmt.executeUpdate("create database if not exists db");
-
-// use database
-stmt.executeUpdate("use db");
-
-// create table
-stmt.executeUpdate("create table if not exists tb (ts timestamp, temperature int, humidity float)");
-```
-> 注意：如果不使用 `use db` 指定数据库，则后续对表的操作都需要增加数据库名称作为前缀，如 db.tb。
-
-### 插入数据
-
-```java
-// insert data
-int affectedRows = stmt.executeUpdate("insert into tb values(now, 23, 10.3) (now + 1s, 20, 9.3)");
-
-System.out.println("insert " + affectedRows + " rows.");
-```
-> now 为系统内部函数，默认为服务器当前时间。
-> `now + 1s` 代表服务器当前时间往后加 1 秒，数字后面代表时间单位：a(毫秒), s(秒), m(分), h(小时), d(天)，w(周), n(月), y(年)。
-
-### 查询数据
-
-```java
-// query data
-ResultSet resultSet = stmt.executeQuery("select * from tb");
-
-Timestamp ts = null;
-int temperature = 0;
-float humidity = 0;
-while(resultSet.next()){
-
-    ts = resultSet.getTimestamp(1);
-    temperature = resultSet.getInt(2);
-    humidity = resultSet.getFloat("humidity");
-
-    System.out.printf("%s, %d, %s\n", ts, temperature, humidity);
-}
-```
-> 查询和操作关系型数据库一致，使用下标获取返回字段内容时从 1 开始，建议使用字段名称获取。
-
-
-### 订阅
-
-#### 创建
-
-```java
-TSDBSubscribe sub = ((TSDBConnection)conn).subscribe("topic", "select * from meters", false);
-```
-
-`subscribe` 方法的三个参数含义如下：
-
-* topic：订阅的主题（即名称），此参数是订阅的唯一标识
-* sql：订阅的查询语句，此语句只能是 `select` 语句，只应查询原始数据，只能按时间正序查询数据
-* restart：如果订阅已经存在，是重新开始，还是继续之前的订阅
-
-如上面的例子将使用 SQL 语句 `select * from meters` 创建一个名为 `topic' 的订阅，如果这个订阅已经存在，将继续之前的查询进度，而不是从头开始消费所有的数据。
-
-#### 消费数据
-
-```java
-int total = 0;
-while(true) {
-    TSDBResultSet rs = sub.consume();
-    int count = 0;
-    while(rs.next()) {
-        count++;
-    }
-    total += count;
-    System.out.printf("%d rows consumed, total %d\n", count, total);
-    Thread.sleep(1000);
-}
-```
-
-`consume` 方法返回一个结果集，其中包含从上次 `consume` 到目前为止的所有新数据。请务必按需选择合理的调用 `consume` 的频率（如例子中的`Thread.sleep(1000)`），否则会给服务端造成不必要的压力。
-
-#### 关闭订阅
-
-```java
-sub.close(true);
-```
-
-`close` 方法关闭一个订阅。如果其参数为 `true` 表示保留订阅进度信息，后续可以创建同名订阅继续消费数据；如为 `false` 则不保留订阅进度。
-
-
-### 关闭资源
-
-```java
-resultSet.close();
-stmt.close();
-conn.close();
-```
-> `注意务必要将 connection 进行关闭`，否则会出现连接泄露。
-## 与连接池使用
-
-**HikariCP**
-
-* 引入相应 HikariCP maven 依赖：
-```xml
-<dependency>
-    <groupId>com.zaxxer</groupId>
-    <artifactId>HikariCP</artifactId>
-    <version>3.4.1</version>
-</dependency>
-```
-
-* 使用示例如下：
-```java
- public static void main(String[] args) throws SQLException {
-    HikariConfig config = new HikariConfig();
-    config.setJdbcUrl("jdbc:TAOS://127.0.0.1:6030/log");
-    config.setUsername("root");
-    config.setPassword("taosdata");
-
-    config.setMinimumIdle(3);           //minimum number of idle connection
-    config.setMaximumPoolSize(10);      //maximum number of connection in the pool
-    config.setConnectionTimeout(10000); //maximum wait milliseconds for get connection from pool
-    config.setIdleTimeout(60000);       // max idle time for recycle idle connection 
-    config.setConnectionTestQuery("describe log.dn"); //validation query
-    config.setValidationTimeout(3000);   //validation query timeout
-
-    HikariDataSource ds = new HikariDataSource(config); //create datasource
-    
-    Connection  connection = ds.getConnection(); // get connection
-    Statement statement = connection.createStatement(); // get statement
-    
-    //query or insert 
-    // ...
-    
-    connection.close(); // put back to conneciton pool
-}
-```
-> 通过 HikariDataSource.getConnection() 获取连接后，使用完成后需要调用 close() 方法，实际上它并不会关闭连接，只是放回连接池中。
-> 更多 HikariCP 使用问题请查看[官方说明][5]
-
-**Druid**
-
-* 引入相应 Druid maven 依赖：
-
-```xml
-<dependency>
-    <groupId>com.alibaba</groupId>
-    <artifactId>druid</artifactId>
-    <version>1.1.20</version>
-</dependency>
-```
-
-* 使用示例如下：
-```java
-public static void main(String[] args) throws Exception {
-    Properties properties = new Properties();
-    properties.put("driverClassName","com.taosdata.jdbc.TSDBDriver");
-    properties.put("url","jdbc:TAOS://127.0.0.1:6030/log");
-    properties.put("username","root");
-    properties.put("password","taosdata");
-
-    properties.put("maxActive","10"); //maximum number of connection in the pool
-    properties.put("initialSize","3");//initial number of connection
-    properties.put("maxWait","10000");//maximum wait milliseconds for get connection from pool
-    properties.put("minIdle","3");//minimum number of connection in the pool
-
-    properties.put("timeBetweenEvictionRunsMillis","3000");// the interval milliseconds to test connection
-
-    properties.put("minEvictableIdleTimeMillis","60000");//the minimum milliseconds to keep idle
-    properties.put("maxEvictableIdleTimeMillis","90000");//the maximum milliseconds to keep idle
-
-    properties.put("validationQuery","describe log.dn"); //validation query
-    properties.put("testWhileIdle","true"); // test connection while idle
-    properties.put("testOnBorrow","false"); // don't need while testWhileIdle is true
-    properties.put("testOnReturn","false"); // don't need while testWhileIdle is true
-    
-    //create druid datasource
-    DataSource ds = DruidDataSourceFactory.createDataSource(properties);
-    Connection  connection = ds.getConnection(); // get connection
-    Statement statement = connection.createStatement(); // get statement
-
-    //query or insert 
-    // ...
-
-    connection.close(); // put back to conneciton pool
-}
-```
-> 更多 druid 使用问题请查看[官方说明][6]
-
-**注意事项**
-* TDengine `v1.6.4.1` 版本开始提供了一个专门用于心跳检测的函数 `select server_status()`，所以在使用连接池时推荐使用 `select server_status()` 进行 Validation Query。
-
-如下所示，`select server_status()` 执行成功会返回 `1`。
-```shell
-taos> select server_status();
-server_status()|
-================
-1              |
-Query OK, 1 row(s) in set (0.000141s)
-```
-
-## 与框架使用
-
-* Spring JdbcTemplate 中使用 taos-jdbcdriver，可参考 [SpringJdbcTemplate][11]
-* Springboot + Mybatis 中使用，可参考 [springbootdemo][12]
-
-## 常见问题
-
-* java.lang.UnsatisfiedLinkError: no taos in java.library.path
-  
-  **原因**：程序没有找到依赖的本地函数库 taos。
-  
-  **解决方法**：windows 下可以将 C:\TDengine\driver\taos.dll 拷贝到 C:\Windows\System32\ 目录下，linux 下将建立如下软链 ` ln -s /usr/local/taos/driver/libtaos.so.x.x.x.x /usr/lib/libtaos.so` 即可。
-  
-* java.lang.UnsatisfiedLinkError: taos.dll Can't load AMD 64 bit on a IA 32-bit platform
-  
-  **原因**：目前 TDengine 只支持 64 位 JDK。
-  
-  **解决方法**：重新安装 64 位 JDK。
-
-* 其它问题请参考 [Issues][7]
-
 ## Python Connector
 
 ### 安装准备
-* 已安装TDengine, 如果客户端在Windows上，需要安装Windows 版本的TDengine客户端 [（Windows TDengine 客户端安装）](https://www.taosdata.com/cn/documentation/connector/#Windows客户端及程序接口)
+* 已安装TDengine, 如果客户端在Windows上，需要安装Windows 版本的TDengine客户端 [（Windows TDengine 客户端安装）][4]
 * 已安装python 2.7 or >= 3.4
 * 已安装pip
 
@@ -1137,18 +782,5 @@ promise2.then(function(result) {
 [这里](https://github.com/taosdata/TDengine/tree/master/tests/examples/nodejs/node-example-raw.js)同样是一个使用NodeJS 连接器建表，插入天气数据并查询插入的数据的代码示例，但和上面不同的是，该示例只使用`cursor`.
 
 
-[1]: https://search.maven.org/artifact/com.taosdata.jdbc/taos-jdbcdriver
-[2]: https://mvnrepository.com/artifact/com.taosdata.jdbc/taos-jdbcdriver
-[3]: https://github.com/taosdata/TDengine
-[4]: https://www.taosdata.com/blog/2019/12/03/jdbcdriver%e6%89%be%e4%b8%8d%e5%88%b0%e5%8a%a8%e6%80%81%e9%93%be%e6%8e%a5%e5%ba%93/
-[5]: https://github.com/brettwooldridge/HikariCP
-[6]: https://github.com/alibaba/druid
-[7]: https://github.com/taosdata/TDengine/issues
-[8]: https://search.maven.org/artifact/com.taosdata.jdbc/taos-jdbcdriver
-[9]: https://mvnrepository.com/artifact/com.taosdata.jdbc/taos-jdbcdriver
-[10]: https://maven.aliyun.com/mvn/search
-[11]:  https://github.com/taosdata/TDengine/tree/develop/tests/examples/JDBC/SpringJdbcTemplate
-[12]: https://github.com/taosdata/TDengine/tree/develop/tests/examples/JDBC/springbootdemo
-[13]: https://www.taosdata.com/cn/documentation20/administrator/#%E5%AE%A2%E6%88%B7%E7%AB%AF%E9%85%8D%E7%BD%AE
-[14]: https://www.taosdata.com/cn/documentation20/connector/#Windows
-[15]: https://www.taosdata.com/cn/getting-started/#%E5%BF%AB%E9%80%9F%E4%B8%8A%E6%89%8B
+[4]: https://www.taosdata.com/cn/all-downloads/#TDengine-Windows-Client
+
diff --git a/documentation20/webdocs/markdowndocs/connector-java-ch.md b/documentation20/webdocs/markdowndocs/connector-java-ch.md
new file mode 100644
index 0000000000..da5ea52966
--- /dev/null
+++ b/documentation20/webdocs/markdowndocs/connector-java-ch.md
@@ -0,0 +1,370 @@
+#  Java Connector
+
+TDengine 为了方便 Java 应用使用，提供了遵循 JDBC 标准(3.0)API 规范的 `taos-jdbcdriver` 实现。目前可以通过 [Sonatype Repository][1] 搜索并下载。
+
+由于 TDengine 是使用 c 语言开发的，使用 taos-jdbcdriver 驱动包时需要依赖系统对应的本地函数库。
+
+* libtaos.so 
+    在 linux 系统中成功安装 TDengine 后，依赖的本地函数库 libtaos.so 文件会被自动拷贝至 /usr/lib/libtaos.so，该目录包含在 Linux 自动扫描路径上，无需单独指定。
+    
+* taos.dll
+    在 windows 系统中安装完客户端之后，驱动包依赖的 taos.dll 文件会自动拷贝到系统默认搜索路径 C:/Windows/System32 下，同样无需要单独指定。
+    
+> 注意：在 windows 环境开发时需要安装 TDengine 对应的 [windows 客户端][14]，Linux 服务器安装完 TDengine 之后默认已安装 client，也可以单独安装 [Linux 客户端][15] 连接远程 TDengine Server。
+
+TDengine 的 JDBC 驱动实现尽可能的与关系型数据库驱动保持一致，但时序空间数据库与关系对象型数据库服务的对象和技术特征的差异导致 taos-jdbcdriver 并未完全实现 JDBC 标准规范。在使用时需要注意以下几点：
+
+* TDengine 不提供针对单条数据记录的删除和修改的操作，驱动中也没有支持相关方法。
+* 由于不支持删除和修改，所以也不支持事务操作。
+* 目前不支持表间的 union 操作。
+* 目前不支持嵌套查询(nested query)，对每个 Connection 的实例，至多只能有一个打开的 ResultSet 实例；如果在 ResultSet还没关闭的情况下执行了新的查询，TSDBJDBCDriver 则会自动关闭上一个 ResultSet。
+
+
+## TAOS-JDBCDriver 版本以及支持的 TDengine 版本和 JDK 版本
+
+| taos-jdbcdriver 版本 | TDengine 版本 | JDK 版本 |
+| --- | --- | --- |
+| 2.0.4 | 2.0.0.x 及以上 | 1.8.x |
+| 1.0.3 | 1.6.1.x 及以上 | 1.8.x |
+| 1.0.2 | 1.6.1.x 及以上 | 1.8.x |
+| 1.0.1 | 1.6.1.x 及以上 | 1.8.x |
+
+## TDengine DataType 和 Java DataType
+
+TDengine 目前支持时间戳、数字、字符、布尔类型，与 Java 对应类型转换如下：
+
+| TDengine DataType | Java DataType |
+| --- | --- |
+| TIMESTAMP | java.sql.Timestamp |
+| INT | java.lang.Integer |
+| BIGINT | java.lang.Long |
+| FLOAT | java.lang.Float |
+| DOUBLE | java.lang.Double |
+| SMALLINT, TINYINT |java.lang.Short  |
+| BOOL | java.lang.Boolean |
+| BINARY, NCHAR | java.lang.String |
+
+## 如何获取 TAOS-JDBCDriver
+
+### maven 仓库
+
+目前 taos-jdbcdriver 已经发布到 [Sonatype Repository][1] 仓库，且各大仓库都已同步。
+* [sonatype][8]
+* [mvnrepository][9]
+* [maven.aliyun][10]
+
+maven 项目中使用如下 pom.xml 配置即可：
+
+```xml
+<dependency>
+  <groupId>com.taosdata.jdbc</groupId>
+  <artifactId>taos-jdbcdriver</artifactId>
+  <version>2.0.4</version>
+</dependency>
+```
+
+### 源码编译打包
+
+下载 [TDengine][3] 源码之后，进入 taos-jdbcdriver 源码目录 `src/connector/jdbc` 执行 `mvn clean package` 即可生成相应 jar 包。
+
+
+## 使用说明
+
+### 获取连接
+
+如下所示配置即可获取 TDengine Connection：
+```java
+Class.forName("com.taosdata.jdbc.TSDBDriver");
+String jdbcUrl = "jdbc:TAOS://127.0.0.1:6030/log?user=root&password=taosdata";
+Connection conn = DriverManager.getConnection(jdbcUrl);
+```
+> 端口 6030 为默认连接端口，JDBC URL 中的 log 为系统本身的监控数据库。
+
+TDengine 的 JDBC URL 规范格式为：
+`jdbc:TAOS://{host_ip}:{port}/[database_name]?[user={user}|&password={password}|&charset={charset}|&cfgdir={config_dir}|&locale={locale}|&timezone={timezone}]`
+
+其中，`{}` 中的内容必须，`[]` 中为可选。配置参数说明如下：
+
+* user：登录 TDengine 用户名，默认值 root。
+* password：用户登录密码，默认值 taosdata。
+* charset：客户端使用的字符集，默认值为系统字符集。
+* cfgdir：客户端配置文件目录路径，Linux OS 上默认值 /etc/taos ，Windows OS 上默认值 C:/TDengine/cfg。
+* locale：客户端语言环境，默认值系统当前 locale。
+* timezone：客户端使用的时区，默认值为系统当前时区。
+
+以上参数可以在 3 处配置，`优先级由高到低`分别如下：
+1. JDBC URL 参数
+    如上所述，可以在 JDBC URL 的参数中指定。
+2. java.sql.DriverManager.getConnection(String jdbcUrl, Properties connProps)
+```java
+public Connection getConn() throws Exception{
+  Class.forName("com.taosdata.jdbc.TSDBDriver");
+  String jdbcUrl = "jdbc:TAOS://127.0.0.1:0/log?user=root&password=taosdata";
+  Properties connProps = new Properties();
+  connProps.setProperty(TSDBDriver.PROPERTY_KEY_USER, "root");
+  connProps.setProperty(TSDBDriver.PROPERTY_KEY_PASSWORD, "taosdata");
+  connProps.setProperty(TSDBDriver.PROPERTY_KEY_CONFIG_DIR, "/etc/taos");
+  connProps.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
+  connProps.setProperty(TSDBDriver.PROPERTY_KEY_LOCALE, "en_US.UTF-8");
+  connProps.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
+  Connection conn = DriverManager.getConnection(jdbcUrl, connProps);
+  return conn;
+}
+```
+
+3. 客户端配置文件 taos.cfg
+
+    linux 系统默认配置文件为 /var/lib/taos/taos.cfg，windows 系统默认配置文件路径为 C:\TDengine\cfg\taos.cfg。
+```properties
+# client default username
+# defaultUser           root
+
+# client default password
+# defaultPass           taosdata
+
+# default system charset
+# charset               UTF-8
+
+# system locale
+# locale                en_US.UTF-8
+```
+> 更多详细配置请参考[客户端配置][13]
+
+### 创建数据库和表
+
+```java
+Statement stmt = conn.createStatement();
+
+// create database
+stmt.executeUpdate("create database if not exists db");
+
+// use database
+stmt.executeUpdate("use db");
+
+// create table
+stmt.executeUpdate("create table if not exists tb (ts timestamp, temperature int, humidity float)");
+```
+> 注意：如果不使用 `use db` 指定数据库，则后续对表的操作都需要增加数据库名称作为前缀，如 db.tb。
+
+### 插入数据
+
+```java
+// insert data
+int affectedRows = stmt.executeUpdate("insert into tb values(now, 23, 10.3) (now + 1s, 20, 9.3)");
+
+System.out.println("insert " + affectedRows + " rows.");
+```
+> now 为系统内部函数，默认为服务器当前时间。
+> `now + 1s` 代表服务器当前时间往后加 1 秒，数字后面代表时间单位：a(毫秒), s(秒), m(分), h(小时), d(天)，w(周), n(月), y(年)。
+
+### 查询数据
+
+```java
+// query data
+ResultSet resultSet = stmt.executeQuery("select * from tb");
+
+Timestamp ts = null;
+int temperature = 0;
+float humidity = 0;
+while(resultSet.next()){
+
+    ts = resultSet.getTimestamp(1);
+    temperature = resultSet.getInt(2);
+    humidity = resultSet.getFloat("humidity");
+
+    System.out.printf("%s, %d, %s\n", ts, temperature, humidity);
+}
+```
+> 查询和操作关系型数据库一致，使用下标获取返回字段内容时从 1 开始，建议使用字段名称获取。
+
+
+### 订阅
+
+#### 创建
+
+```java
+TSDBSubscribe sub = ((TSDBConnection)conn).subscribe("topic", "select * from meters", false);
+```
+
+`subscribe` 方法的三个参数含义如下：
+
+* topic：订阅的主题（即名称），此参数是订阅的唯一标识
+* sql：订阅的查询语句，此语句只能是 `select` 语句，只应查询原始数据，只能按时间正序查询数据
+* restart：如果订阅已经存在，是重新开始，还是继续之前的订阅
+
+如上面的例子将使用 SQL 语句 `select * from meters` 创建一个名为 `topic' 的订阅，如果这个订阅已经存在，将继续之前的查询进度，而不是从头开始消费所有的数据。
+
+#### 消费数据
+
+```java
+int total = 0;
+while(true) {
+    TSDBResultSet rs = sub.consume();
+    int count = 0;
+    while(rs.next()) {
+        count++;
+    }
+    total += count;
+    System.out.printf("%d rows consumed, total %d\n", count, total);
+    Thread.sleep(1000);
+}
+```
+
+`consume` 方法返回一个结果集，其中包含从上次 `consume` 到目前为止的所有新数据。请务必按需选择合理的调用 `consume` 的频率（如例子中的`Thread.sleep(1000)`），否则会给服务端造成不必要的压力。
+
+#### 关闭订阅
+
+```java
+sub.close(true);
+```
+
+`close` 方法关闭一个订阅。如果其参数为 `true` 表示保留订阅进度信息，后续可以创建同名订阅继续消费数据；如为 `false` 则不保留订阅进度。
+
+
+### 关闭资源
+
+```java
+resultSet.close();
+stmt.close();
+conn.close();
+```
+> `注意务必要将 connection 进行关闭`，否则会出现连接泄露。
+## 与连接池使用
+
+**HikariCP**
+
+* 引入相应 HikariCP maven 依赖：
+```xml
+<dependency>
+    <groupId>com.zaxxer</groupId>
+    <artifactId>HikariCP</artifactId>
+    <version>3.4.1</version>
+</dependency>
+```
+
+* 使用示例如下：
+```java
+ public static void main(String[] args) throws SQLException {
+    HikariConfig config = new HikariConfig();
+    config.setJdbcUrl("jdbc:TAOS://127.0.0.1:6030/log");
+    config.setUsername("root");
+    config.setPassword("taosdata");
+
+    config.setMinimumIdle(3);           //minimum number of idle connection
+    config.setMaximumPoolSize(10);      //maximum number of connection in the pool
+    config.setConnectionTimeout(10000); //maximum wait milliseconds for get connection from pool
+    config.setIdleTimeout(60000);       // max idle time for recycle idle connection 
+    config.setConnectionTestQuery("describe log.dn"); //validation query
+    config.setValidationTimeout(3000);   //validation query timeout
+
+    HikariDataSource ds = new HikariDataSource(config); //create datasource
+    
+    Connection  connection = ds.getConnection(); // get connection
+    Statement statement = connection.createStatement(); // get statement
+    
+    //query or insert 
+    // ...
+    
+    connection.close(); // put back to conneciton pool
+}
+```
+> 通过 HikariDataSource.getConnection() 获取连接后，使用完成后需要调用 close() 方法，实际上它并不会关闭连接，只是放回连接池中。
+> 更多 HikariCP 使用问题请查看[官方说明][5]
+
+**Druid**
+
+* 引入相应 Druid maven 依赖：
+
+```xml
+<dependency>
+    <groupId>com.alibaba</groupId>
+    <artifactId>druid</artifactId>
+    <version>1.1.20</version>
+</dependency>
+```
+
+* 使用示例如下：
+```java
+public static void main(String[] args) throws Exception {
+    Properties properties = new Properties();
+    properties.put("driverClassName","com.taosdata.jdbc.TSDBDriver");
+    properties.put("url","jdbc:TAOS://127.0.0.1:6030/log");
+    properties.put("username","root");
+    properties.put("password","taosdata");
+
+    properties.put("maxActive","10"); //maximum number of connection in the pool
+    properties.put("initialSize","3");//initial number of connection
+    properties.put("maxWait","10000");//maximum wait milliseconds for get connection from pool
+    properties.put("minIdle","3");//minimum number of connection in the pool
+
+    properties.put("timeBetweenEvictionRunsMillis","3000");// the interval milliseconds to test connection
+
+    properties.put("minEvictableIdleTimeMillis","60000");//the minimum milliseconds to keep idle
+    properties.put("maxEvictableIdleTimeMillis","90000");//the maximum milliseconds to keep idle
+
+    properties.put("validationQuery","describe log.dn"); //validation query
+    properties.put("testWhileIdle","true"); // test connection while idle
+    properties.put("testOnBorrow","false"); // don't need while testWhileIdle is true
+    properties.put("testOnReturn","false"); // don't need while testWhileIdle is true
+    
+    //create druid datasource
+    DataSource ds = DruidDataSourceFactory.createDataSource(properties);
+    Connection  connection = ds.getConnection(); // get connection
+    Statement statement = connection.createStatement(); // get statement
+
+    //query or insert 
+    // ...
+
+    connection.close(); // put back to conneciton pool
+}
+```
+> 更多 druid 使用问题请查看[官方说明][6]
+
+**注意事项**
+* TDengine `v1.6.4.1` 版本开始提供了一个专门用于心跳检测的函数 `select server_status()`，所以在使用连接池时推荐使用 `select server_status()` 进行 Validation Query。
+
+如下所示，`select server_status()` 执行成功会返回 `1`。
+```shell
+taos> select server_status();
+server_status()|
+================
+1              |
+Query OK, 1 row(s) in set (0.000141s)
+```
+
+## 与框架使用
+
+* Spring JdbcTemplate 中使用 taos-jdbcdriver，可参考 [SpringJdbcTemplate][11]
+* Springboot + Mybatis 中使用，可参考 [springbootdemo][12]
+
+## 常见问题
+
+* java.lang.UnsatisfiedLinkError: no taos in java.library.path
+  
+  **原因**：程序没有找到依赖的本地函数库 taos。
+  
+  **解决方法**：windows 下可以将 C:\TDengine\driver\taos.dll 拷贝到 C:\Windows\System32\ 目录下，linux 下将建立如下软链 ` ln -s /usr/local/taos/driver/libtaos.so.x.x.x.x /usr/lib/libtaos.so` 即可。
+  
+* java.lang.UnsatisfiedLinkError: taos.dll Can't load AMD 64 bit on a IA 32-bit platform
+  
+  **原因**：目前 TDengine 只支持 64 位 JDK。
+  
+  **解决方法**：重新安装 64 位 JDK。
+
+* 其它问题请参考 [Issues][7]
+
+[1]: https://search.maven.org/artifact/com.taosdata.jdbc/taos-jdbcdriver
+[2]: https://mvnrepository.com/artifact/com.taosdata.jdbc/taos-jdbcdriver
+[3]: https://github.com/taosdata/TDengine
+[4]: https://www.taosdata.com/blog/2019/12/03/jdbcdriver%e6%89%be%e4%b8%8d%e5%88%b0%e5%8a%a8%e6%80%81%e9%93%be%e6%8e%a5%e5%ba%93/
+[5]: https://github.com/brettwooldridge/HikariCP
+[6]: https://github.com/alibaba/druid
+[7]: https://github.com/taosdata/TDengine/issues
+[8]: https://search.maven.org/artifact/com.taosdata.jdbc/taos-jdbcdriver
+[9]: https://mvnrepository.com/artifact/com.taosdata.jdbc/taos-jdbcdriver
+[10]: https://maven.aliyun.com/mvn/search
+[11]:  https://github.com/taosdata/TDengine/tree/develop/tests/examples/JDBC/SpringJdbcTemplate
+[12]: https://github.com/taosdata/TDengine/tree/develop/tests/examples/JDBC/springbootdemo
+[13]: https://www.taosdata.com/cn/documentation20/administrator/#%E5%AE%A2%E6%88%B7%E7%AB%AF%E9%85%8D%E7%BD%AE
+[14]: https://www.taosdata.com/cn/all-downloads/#TDengine-Windows-Client
+[15]: https://www.taosdata.com/cn/getting-started/#%E5%BF%AB%E9%80%9F%E4%B8%8A%E6%89%8B

From ad6d1db4f87d13982db7422529b48b92e6aaeca0 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 10:25:56 +0800
Subject: [PATCH 40/69] [TD-1256]

---
 .../webdocs/markdowndocs/faq-ch.md            | 40 ++++++++++---------
 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/documentation20/webdocs/markdowndocs/faq-ch.md b/documentation20/webdocs/markdowndocs/faq-ch.md
index 266aea4c51..50e0bebad6 100644
--- a/documentation20/webdocs/markdowndocs/faq-ch.md
+++ b/documentation20/webdocs/markdowndocs/faq-ch.md
@@ -59,36 +59,40 @@
 
     -n ：指示运行网络连通检测的服务端功能，或客户端功能，缺省值为空，表示不启动网络连通检测；
 
-    -h：指示服务端名称，可以是ip地址或fqdn格式。如：192.168.1.160，或 192.168.1.160:6030，或 hostname1，或hostname1:6030。缺省值是127.0.01。
+    -h：指示服务端名称，可以是ip地址或fqdn格式。如：192.168.1.160，或 192.168.1.160:6030，或 hostname1，或hostname1:6030。缺省值是127.0.0.1。
 
     -P ：检测的起始端口号，缺省值是6030；
 
     -e：检测的结束端口号，必须大于等于起始端口号，缺省值是6042；
 
-    -l：指定检测端口连通的报文长度，最大64000字节，缺省值是1000字节；
+    -l：指定检测端口连通的报文长度，最大64000字节，缺省值是1000字节，测试时服务端和客户端必须指定相同；
 
     服务端设置的起始端口和结束端口号，必须包含客户端设置的起始端口和结束端口号；
 
-    对于客户端，起始端口号的有三种方式：缺省值、-h指定、-P指定，优先级是：-P指定 > -h指定 > 缺省值。
+    对于客户端，起始端口号有三种设置方式：缺省值、-h指定、-P指定，优先级是：-P指定 > -h指定 > 缺省值。
 
     客户端运行的输出样例：
 
-    `sum@sum-virtualBox /home/sum $ taos -n client -h ubuntu-vbox6
-    host: ubuntu-vbox6	start port: 6030	end port: 6042	packet len: 1000
+    `sum@sum-virtualBox /home/sum $ taos -n client -h ubuntu-vbox6`
+
+    `host: ubuntu-vbox6	start port: 6030	end port: 6042	packet len: 1000`
+
+    `tcp port:6030 test ok.		udp port:6030 test ok.`
+    `tcp port:6031 test ok.		udp port:6031 test ok.`
+    `tcp port:6032 test ok.		udp port:6032 test ok.`
+    `tcp port:6033 test ok.		udp port:6033 test ok.`
+    `tcp port:6034 test ok.		udp port:6034 test ok.`
+    `tcp port:6035 test ok.		udp port:6035 test ok.`
+    `tcp port:6036 test ok.		udp port:6036 test ok.`
+    `tcp port:6037 test ok.		udp port:6037 test ok.`
+    `tcp port:6038 test ok.		udp port:6038 test ok.`
+    `tcp port:6039 test ok.		udp port:6039 test ok.`
+    `tcp port:6040 test ok.		udp port:6040 test ok.`
+    `tcp port:6041 test ok.		udp port:6041 test ok.`
+    `tcp port:6042 test ok.		udp port:6042 test ok.`
+
+    如果某个端口不通，会输出 `port：xxxx test fail`的信息。
 
-    tcp port:6030 test ok.		udp port:6030 test ok.
-    tcp port:6031 test ok.		udp port:6031 test ok.
-    tcp port:6032 test ok.		udp port:6032 test ok.
-    tcp port:6033 test ok.		udp port:6033 test ok.
-    tcp port:6034 test ok.		udp port:6034 test ok.
-    tcp port:6035 test ok.		udp port:6035 test ok.
-    tcp port:6036 test ok.		udp port:6036 test ok.
-    tcp port:6037 test ok.		udp port:6037 test ok.
-    tcp port:6038 test ok.		udp port:6038 test ok.
-    tcp port:6039 test ok.		udp port:6039 test ok.
-    tcp port:6040 test ok.		udp port:6040 test ok.
-    tcp port:6041 test ok.		udp port:6041 test ok.
-    tcp port:6042 test ok.		udp port:6042 test ok.`
 
 ## 6. 遇到错误“Unexpected generic error in RPC”， 我怎么办？
 产生这个错误，是由于客户端或数据节点无法解析FQDN(Fully Qualified Domain Name)导致。对于TAOS Shell或客户端应用，请做如下检查：

From 1062356ac7016e39e2c472a651f4320891811979 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 10:29:10 +0800
Subject: [PATCH 41/69] [TD-1256]

---
 documentation20/webdocs/markdowndocs/faq-ch.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/documentation20/webdocs/markdowndocs/faq-ch.md b/documentation20/webdocs/markdowndocs/faq-ch.md
index 50e0bebad6..0d686adc8d 100644
--- a/documentation20/webdocs/markdowndocs/faq-ch.md
+++ b/documentation20/webdocs/markdowndocs/faq-ch.md
@@ -69,7 +69,7 @@
 
     服务端设置的起始端口和结束端口号，必须包含客户端设置的起始端口和结束端口号；
 
-    对于客户端，起始端口号有三种设置方式：缺省值、-h指定、-P指定，优先级是：-P指定 > -h指定 > 缺省值。
+    对于起始端口号有三种设置方式：缺省值、-h指定、-P指定，优先级是：-P指定 > -h指定 > 缺省值。
 
     客户端运行的输出样例：
 

From 7074c95a9ad7db8e8b2d43ddd85b4e3c54f96b6f Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Tue, 1 Sep 2020 10:44:39 +0800
Subject: [PATCH 42/69] add more check on data compress and decompress

---
 src/tsdb/src/tsdbRWHelper.c  | 11 +++++++++--
 src/util/inc/tscompression.h | 16 ++++++++--------
 src/util/src/tcompression.c  | 19 +++++++++----------
 3 files changed, 26 insertions(+), 20 deletions(-)

diff --git a/src/tsdb/src/tsdbRWHelper.c b/src/tsdb/src/tsdbRWHelper.c
index 4c6d75ec14..84f22918ec 100644
--- a/src/tsdb/src/tsdbRWHelper.c
+++ b/src/tsdb/src/tsdbRWHelper.c
@@ -1130,8 +1130,15 @@ static int tsdbCheckAndDecodeColumnData(SDataCol *pDataCol, char *content, int32
   // Decode the data
   if (comp) {
     // // Need to decompress
-    pDataCol->len = (*(tDataTypeDesc[pDataCol->type].decompFunc))(
-        content, len - sizeof(TSCKSUM), numOfRows, pDataCol->pData, pDataCol->spaceSize, comp, buffer, bufferSize);
+    int tlen = (*(tDataTypeDesc[pDataCol->type].decompFunc))(content, len - sizeof(TSCKSUM), numOfRows, pDataCol->pData,
+                                                             pDataCol->spaceSize, comp, buffer, bufferSize);
+    if (tlen <= 0) {
+      tsdbError("Failed to decompress column, file corrupted, len:%d comp:%d numOfRows:%d maxPoints:%d bufferSize:%d",
+                len, comp, numOfRows, maxPoints, bufferSize);
+      terrno = TSDB_CODE_TDB_FILE_CORRUPTED;
+      return -1;
+    }
+    pDataCol->len = tlen;
     if (pDataCol->type == TSDB_DATA_TYPE_BINARY || pDataCol->type == TSDB_DATA_TYPE_NCHAR) {
       dataColSetOffset(pDataCol, numOfRows);
     }
diff --git a/src/util/inc/tscompression.h b/src/util/inc/tscompression.h
index bd1ccf3ca5..37d1e7b590 100644
--- a/src/util/inc/tscompression.h
+++ b/src/util/inc/tscompression.h
@@ -65,7 +65,7 @@ static FORCE_INLINE int tsDecompressTinyint(const char *const input, int compres
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressINTImp(input, nelements, output, TSDB_DATA_TYPE_TINYINT);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressINTImp(buffer, nelements, output, TSDB_DATA_TYPE_TINYINT);
   } else {
     assert(0);
@@ -91,7 +91,7 @@ static FORCE_INLINE int tsDecompressSmallint(const char *const input, int compre
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressINTImp(input, nelements, output, TSDB_DATA_TYPE_SMALLINT);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressINTImp(buffer, nelements, output, TSDB_DATA_TYPE_SMALLINT);
   } else {
     assert(0);
@@ -117,7 +117,7 @@ static FORCE_INLINE int tsDecompressInt(const char *const input, int compressedS
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressINTImp(input, nelements, output, TSDB_DATA_TYPE_INT);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressINTImp(buffer, nelements, output, TSDB_DATA_TYPE_INT);
   } else {
     assert(0);
@@ -143,7 +143,7 @@ static FORCE_INLINE int tsDecompressBigint(const char *const input, int compress
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressINTImp(input, nelements, output, TSDB_DATA_TYPE_BIGINT);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressINTImp(buffer, nelements, output, TSDB_DATA_TYPE_BIGINT);
   } else {
     assert(0);
@@ -169,7 +169,7 @@ static FORCE_INLINE int tsDecompressBool(const char *const input, int compressed
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressBoolImp(input, nelements, output);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressBoolImp(buffer, nelements, output);
   } else {
     assert(0);
@@ -205,7 +205,7 @@ static FORCE_INLINE int tsDecompressFloat(const char *const input, int compresse
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressFloatImp(input, nelements, output);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressFloatImp(buffer, nelements, output);
   } else {
     assert(0);
@@ -231,7 +231,7 @@ static FORCE_INLINE int tsDecompressDouble(const char *const input, int compress
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressDoubleImp(input, nelements, output);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressDoubleImp(buffer, nelements, output);
   } else {
     assert(0);
@@ -257,7 +257,7 @@ static FORCE_INLINE int tsDecompressTimestamp(const char *const input, int compr
   if (algorithm == ONE_STAGE_COMP) {
     return tsDecompressTimestampImp(input, nelements, output);
   } else if (algorithm == TWO_STAGE_COMP) {
-    tsDecompressStringImp(input, compressedSize, buffer, bufferSize);
+    if (tsDecompressStringImp(input, compressedSize, buffer, bufferSize) < 0) return -1;
     return tsDecompressTimestampImp(buffer, nelements, output);
   } else {
     assert(0);
diff --git a/src/util/src/tcompression.c b/src/util/src/tcompression.c
index 8c5828d32d..1a5d28625f 100644
--- a/src/util/src/tcompression.c
+++ b/src/util/src/tcompression.c
@@ -47,10 +47,11 @@
  *
  */
 
-#include "os.h"
 #include "lz4.h"
-#include "tscompression.h"
+#include "os.h"
 #include "taosdef.h"
+#include "tscompression.h"
+#include "tulog.h"
 
 static const int TEST_NUMBER = 1;
 #define is_bigendian() ((*(char *)&TEST_NUMBER) == 0)
@@ -88,7 +89,7 @@ int tsCompressINTImp(const char *const input, const int nelements, char *const o
       word_length = CHAR_BYTES;
       break;
     default:
-      perror("Wrong integer types.\n");
+      uError("Invalid compress integer type:%d", type);
       return -1;
   }
 
@@ -209,7 +210,7 @@ int tsDecompressINTImp(const char *const input, const int nelements, char *const
       word_length = CHAR_BYTES;
       break;
     default:
-      perror("Wrong integer types.\n");
+      uError("Invalid decompress integer type:%d", type);
       return -1;
   }
 
@@ -307,7 +308,7 @@ int tsCompressBoolImp(const char *const input, const int nelements, char *const
       /* t = (~((( uint8_t)1) << (7-i%BITS_PER_BYTE))); */
       output[pos] |= t;
     } else {
-      perror("Wrong bool value.\n");
+      uError("Invalid compress bool value:%d", output[pos]);
       return -1;
     }
   }
@@ -363,7 +364,7 @@ int tsCompressBoolRLEImp(const char *const input, const int nelements, char *con
     } else if (num == 0) {
       output[_pos++] = (counter << 1) | INT8MASK(0);
     } else {
-      perror("Wrong bool value!\n");
+      uError("Invalid compress bool value:%d", output[_pos]);
       return -1;
     }
   }
@@ -413,9 +414,7 @@ int tsDecompressStringImp(const char *const input, int compressedSize, char *con
     /* It is compressed by LZ4 algorithm */
     const int decompressed_size = LZ4_decompress_safe(input + 1, output, compressedSize - 1, outputSize);
     if (decompressed_size < 0) {
-      char msg[128] = {0};
-      sprintf(msg, "decomp_size:%d, Error decompress in LZ4 algorithm!\n", decompressed_size);
-      perror(msg);
+      uError("Failed to decompress string with LZ4 algorithm, decompressed size:%d", decompressed_size);
       return -1;
     }
 
@@ -425,7 +424,7 @@ int tsDecompressStringImp(const char *const input, int compressedSize, char *con
     memcpy(output, input + 1, compressedSize - 1);
     return compressedSize - 1;
   } else {
-    perror("Wrong compressed string indicator!\n");
+    uError("Invalid decompress string indicator:%d", input[0]);
     return -1;
   }
 }

From 1ca3e34d348f129f1c7eb7763a0910a1a75a3ff7 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Tue, 1 Sep 2020 11:28:03 +0800
Subject: [PATCH 43/69] compile error in windows

---
 src/util/src/tnettest.c | 48 +++++++++++++----------------------------
 1 file changed, 15 insertions(+), 33 deletions(-)

diff --git a/src/util/src/tnettest.c b/src/util/src/tnettest.c
index d3b404f6de..5a1430baed 100644
--- a/src/util/src/tnettest.c
+++ b/src/util/src/tnettest.c
@@ -13,22 +13,6 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <argp.h>
-#include <arpa/inet.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <pthread.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <wordexp.h>
-
 #include "os.h"
 #include "taosdef.h"
 #include "taoserror.h"
@@ -52,8 +36,8 @@ static uint16_t g_endPort   = 6042;
 
 static void *bindUdpPort(void *sarg) {
   info_s *pinfo = (info_s *)sarg;
-  int   port = pinfo->port;
-  int   serverSocket;
+  int     port = pinfo->port;
+  SOCKET  serverSocket;
 
   struct sockaddr_in server_addr;
   struct sockaddr_in clientAddr;
@@ -96,19 +80,19 @@ static void *bindUdpPort(void *sarg) {
     }
   }
 
-  close(serverSocket);
+  taosCloseSocket(serverSocket);
   return NULL;
 }
 
 static void *bindTcpPort(void *sarg) {
   info_s *pinfo = (info_s *)sarg;
-  int   port = pinfo->port;
-  int   serverSocket;
+  int     port = pinfo->port;
+  SOCKET  serverSocket;
 
   struct sockaddr_in server_addr;
   struct sockaddr_in clientAddr;
   int                addr_len = sizeof(clientAddr);
-  int                client;
+  SOCKET             client;
   char               buffer[BUFFER_SIZE];
   int                iDataNum = 0;
 
@@ -155,7 +139,7 @@ static void *bindTcpPort(void *sarg) {
           continue;
         } else {
           printf("recv Client: %s pkg from TCP port: %d fail:%s.\n", inet_ntoa(clientAddr.sin_addr), port, strerror(errno));
-          close(serverSocket);
+          taosCloseSocket(serverSocket);
           return NULL;
         }
       } else {
@@ -171,14 +155,13 @@ static void *bindTcpPort(void *sarg) {
     }
   }
   
-  close(serverSocket);
+  taosCloseSocket(serverSocket);
   return NULL;
 }
 
 static int checkTcpPort(info_s *info) {
-  int   clientSocket;
-
   struct sockaddr_in serverAddr;
+  SOCKET             clientSocket;
   char               sendbuf[BUFFER_SIZE];
   char               recvbuf[BUFFER_SIZE];
   int                iDataNum = 0;
@@ -233,7 +216,7 @@ static int checkTcpPort(info_s *info) {
         continue;
       } else {
         printf("recv ack pkg from TCP port: %d fail:%s.\n", info->port, strerror(errno));
-        close(clientSocket);
+        taosCloseSocket(clientSocket);
         return -1;
       }
     } else {
@@ -249,14 +232,13 @@ static int checkTcpPort(info_s *info) {
   }
   //printf("Read ack pkg len:%d from tcp port: %d, buffer: %s  %s\n", info->pktLen, port, recvbuf, recvbuf+iDataNum-8);
 
-  close(clientSocket);
+  taosCloseSocket(clientSocket);
   return 0;
 }
 
 static int checkUdpPort(info_s *info) {
-  int   clientSocket;
-
   struct sockaddr_in serverAddr;
+  SOCKET             clientSocket;
   char               sendbuf[BUFFER_SIZE];
   char               recvbuf[BUFFER_SIZE];
   int                iDataNum = 0;
@@ -304,7 +286,7 @@ static int checkUdpPort(info_s *info) {
   }
   
   //printf("Read ack pkg len:%d from udp port: %d, buffer: %s  %s\n", info->pktLen, port, recvbuf, recvbuf+iDataNum-8);
-  close(clientSocket);
+  taosCloseSocket(clientSocket);
   return 0;
 }
 
@@ -368,7 +350,7 @@ static void taosNetTestServer(uint16_t startPort, uint16_t endPort, int pktLen)
 
   for (size_t i = 0; i < num; i++) {
     info_s *tcpInfo = tinfos + i;
-    tcpInfo->port = port + i;
+    tcpInfo->port = (uint16_t)(port + i);
     tcpInfo->pktLen = pktLen;
 
     if (pthread_create(pids + i, NULL, bindTcpPort, tcpInfo) != 0) 
@@ -378,7 +360,7 @@ static void taosNetTestServer(uint16_t startPort, uint16_t endPort, int pktLen)
     }
 
     info_s *udpInfo = uinfos + i;
-    udpInfo->port = port + i;
+    udpInfo->port = (uint16_t)(port + i);
     if (pthread_create(pids + num + i, NULL, bindUdpPort, udpInfo) != 0)
     {                          
       printf("create thread fail, port:%d.\n", port);

From 9b75283859b4710b871813f94c084375580643e3 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Tue, 1 Sep 2020 11:40:34 +0800
Subject: [PATCH 44/69] [td-1250]

---
 src/client/inc/tscSubquery.h         |  2 +-
 src/client/src/tscSubquery.c         | 61 +++++++++++++++++++---------
 tests/script/general/parser/join.sim | 20 ++++++++-
 3 files changed, 61 insertions(+), 22 deletions(-)

diff --git a/src/client/inc/tscSubquery.h b/src/client/inc/tscSubquery.h
index d5833675aa..07e0580397 100644
--- a/src/client/inc/tscSubquery.h
+++ b/src/client/inc/tscSubquery.h
@@ -30,7 +30,7 @@ void tscJoinQueryCallback(void* param, TAOS_RES* tres, int code);
 
 SJoinSupporter* tscCreateJoinSupporter(SSqlObj* pSql, SSubqueryState* pState, int32_t index);
 
-int32_t tscHandleMasterJoinQuery(SSqlObj* pSql);
+void tscHandleMasterJoinQuery(SSqlObj* pSql);
 
 int32_t tscHandleMasterSTableQuery(SSqlObj *pSql);
 
diff --git a/src/client/src/tscSubquery.c b/src/client/src/tscSubquery.c
index b1deeffced..f8c4d77951 100644
--- a/src/client/src/tscSubquery.c
+++ b/src/client/src/tscSubquery.c
@@ -1159,7 +1159,7 @@ static void tscRetrieveDataRes(void *param, TAOS_RES *tres, int code);
 static SSqlObj *tscCreateSTableSubquery(SSqlObj *pSql, SRetrieveSupport *trsupport, SSqlObj *prevSqlObj);
 
 // TODO
-int32_t tscLaunchJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter *pSupporter) {
+int32_t tscCreateJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter *pSupporter) {
   SSqlCmd *   pCmd = &pSql->cmd;
   SQueryInfo *pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
   
@@ -1304,52 +1304,75 @@ int32_t tscLaunchJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter
     pNewQueryInfo->type |= TSDB_QUERY_TYPE_SUBQUERY;
   }
 
-  return tscProcessSql(pNew);
+  return TSDB_CODE_SUCCESS;
 }
 
-int32_t tscHandleMasterJoinQuery(SSqlObj* pSql) {
+void tscHandleMasterJoinQuery(SSqlObj* pSql) {
   SSqlCmd* pCmd = &pSql->cmd;
+  SSqlRes* pRes = &pSql->res;
+
   SQueryInfo *pQueryInfo = tscGetQueryInfoDetail(pCmd, pCmd->clauseIndex);
   assert((pQueryInfo->type & TSDB_QUERY_TYPE_SUBQUERY) == 0);
 
+  int32_t code = TSDB_CODE_SUCCESS;
+
   // todo add test
   SSubqueryState *pState = calloc(1, sizeof(SSubqueryState));
   if (pState == NULL) {
-    pSql->res.code = TSDB_CODE_TSC_OUT_OF_MEMORY;
-    return pSql->res.code;
+    code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    goto _error;
   }
 
   pState->numOfTotal = pQueryInfo->numOfTables;
   pState->numOfRemain = pState->numOfTotal;
 
+  bool hasEmptySub = false;
+
   tscDebug("%p start subquery, total:%d", pSql, pQueryInfo->numOfTables);
   for (int32_t i = 0; i < pQueryInfo->numOfTables; ++i) {
     SJoinSupporter *pSupporter = tscCreateJoinSupporter(pSql, pState, i);
     
     if (pSupporter == NULL) {  // failed to create support struct, abort current query
       tscError("%p tableIndex:%d, failed to allocate join support object, abort further query", pSql, i);
-      pState->numOfRemain = i;
-      pSql->res.code = TSDB_CODE_TSC_OUT_OF_MEMORY;
-      if (0 == i) {
-        taosTFree(pState);
-      }
-      return pSql->res.code;
+      code = TSDB_CODE_TSC_OUT_OF_MEMORY;
+      goto _error;
     }
     
-    int32_t code = tscLaunchJoinSubquery(pSql, i, pSupporter);
+    code = tscCreateJoinSubquery(pSql, i, pSupporter);
     if (code != TSDB_CODE_SUCCESS) {  // failed to create subquery object, quit query
       tscDestroyJoinSupporter(pSupporter);
-      pSql->res.code = TSDB_CODE_TSC_OUT_OF_MEMORY;
-      if (0 == i) {
-        taosTFree(pState);
-      }
+      goto _error;
+    }
+
+    SSqlObj* pSub = pSql->pSubs[i];
+    STableMetaInfo* pTableMetaInfo = tscGetTableMetaInfoFromCmd(&pSub->cmd, 0, 0);
+    if (UTIL_TABLE_IS_SUPER_TABLE(pTableMetaInfo) && (pTableMetaInfo->vgroupList->numOfVgroups == 0)) {
+      hasEmptySub = true;
       break;
     }
   }
 
-  pSql->cmd.command = (pSql->numOfSubs <= 0)? TSDB_SQL_RETRIEVE_EMPTY_RESULT:TSDB_SQL_TABLE_JOIN_RETRIEVE;
-  
-  return TSDB_CODE_SUCCESS;
+  if (hasEmptySub) {  // at least one subquery is empty, do nothing and return
+    freeJoinSubqueryObj(pSql);
+    pSql->cmd.command = TSDB_SQL_RETRIEVE_EMPTY_RESULT;
+    (*pSql->fp)(pSql->param, pSql, 0);
+  } else {
+    for (int32_t i = 0; i < pSql->numOfSubs; ++i) {
+      SSqlObj* pSub = pSql->pSubs[i];
+      if ((code = tscProcessSql(pSub)) != TSDB_CODE_SUCCESS) {
+        pState->numOfRemain = i - 1;  // the already sent reques will continue and do not go to the error process routine
+        break;
+      }
+    }
+
+    pSql->cmd.command = TSDB_SQL_TABLE_JOIN_RETRIEVE;
+  }
+
+  return;
+
+  _error:
+  pRes->code = code;
+  tscQueueAsyncRes(pSql);
 }
 
 static void doCleanupSubqueries(SSqlObj *pSql, int32_t numOfSubs, SSubqueryState* pState) {
diff --git a/tests/script/general/parser/join.sim b/tests/script/general/parser/join.sim
index 1bb0ff5448..f17e28c1da 100644
--- a/tests/script/general/parser/join.sim
+++ b/tests/script/general/parser/join.sim
@@ -482,15 +482,31 @@ sql insert into um2 using m2 tags(9) values(1000001, 10)(2000000, 20);
 
 sql_error select count(*) from m1,m2 where m1.a=m2.a and m1.ts=m2.ts;
 
-#empty table join test, add for no result join test
+print ====> empty table/empty super-table join test, add for no result join test
 sql create database ux1;
 sql use ux1;
 sql create table m1(ts timestamp, k int) tags(a binary(12), b int);
 sql create table tm0 using m1 tags('abc', 1);
 sql create table m2(ts timestamp, k int) tags(a int, b binary(12));
+
+sql select count(*) from m1, m2 where m1.ts=m2.ts and m1.b=m2.a;
+if $rows != 0 then
+  return -1
+endi
+
 sql create table tm2 using m2 tags(2, 'abc');
 sql select count(*) from tm0, tm2 where tm0.ts=tm2.ts;
-sql select count(*) from m1, m2 where m1.ts=m2.ts and m1.b=m2.a
+if $rows != 0 then
+  return -1
+endi
+
+sql select count(*) from m1, m2 where m1.ts=m2.ts and m1.b=m2.a;
+if $rows != 0 then
+  return -1
+endi
+
+sql drop table tm2;
+sql select count(*) from m1, m2 where m1.ts=m2.ts and m1.b=m2.a;
 sql drop database ux1;
 
 system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file

From 2ae765caaf00be7b49c0ed14d6fe3b0323df3a32 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Tue, 1 Sep 2020 12:00:00 +0800
Subject: [PATCH 45/69] [td-1278]

---
 src/client/src/tscSQLParser.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 5600ee3be9..c0e6d7f44e 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -5807,22 +5807,34 @@ int32_t doCheckForCreateFromStable(SSqlObj* pSql, SSqlInfo* pInfo) {
 
   int32_t ret = TSDB_CODE_SUCCESS;
   for (int32_t i = 0; i < pList->nExpr; ++i) {
-    SSchema* pSchema = pTagSchema + i;
+    SSchema* pSchema = &pTagSchema[i];
+    
+    char tagVal[TSDB_MAX_TAGS_LEN];
     if (pSchema->type == TSDB_DATA_TYPE_BINARY || pSchema->type == TSDB_DATA_TYPE_NCHAR) {
-      // validate the length of binary
-      if (pList->a[i].pVar.nLen + VARSTR_HEADER_SIZE > pSchema->bytes) {
+      if (pList->a[i].pVar.nLen > pSchema->bytes) {
         tdDestroyKVRowBuilder(&kvRowBuilder);
         return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
       }
     }
-    
-    char tagVal[TSDB_MAX_TAGS_LEN];
+
     ret = tVariantDump(&(pList->a[i].pVar), tagVal, pSchema->type, true);
+
+    // check again after the convert since it may be converted from binary to nchar.
+    if (pSchema->type == TSDB_DATA_TYPE_BINARY || pSchema->type == TSDB_DATA_TYPE_NCHAR) {
+      int16_t len = varDataTLen(tagVal);
+      if (len > pSchema->bytes) {
+        tdDestroyKVRowBuilder(&kvRowBuilder);
+        return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg3);
+      }
+    }
+
     if (ret != TSDB_CODE_SUCCESS) {
       tdDestroyKVRowBuilder(&kvRowBuilder);
       return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg4);
     }
 
+
+
     tdAddColToKVRow(&kvRowBuilder, pSchema->colId, pSchema->type, tagVal);
   }
 

From 475114f6ca076dc32cd02f9cbb802a244ff33795 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 12:30:20 +0800
Subject: [PATCH 46/69] [TD-1256]

---
 .../webdocs/markdowndocs/faq-ch.md            | 24 ++++++++++++++-----
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/documentation20/webdocs/markdowndocs/faq-ch.md b/documentation20/webdocs/markdowndocs/faq-ch.md
index 0d686adc8d..27c1054dc8 100644
--- a/documentation20/webdocs/markdowndocs/faq-ch.md
+++ b/documentation20/webdocs/markdowndocs/faq-ch.md
@@ -78,19 +78,31 @@
     `host: ubuntu-vbox6	start port: 6030	end port: 6042	packet len: 1000`
 
     `tcp port:6030 test ok.		udp port:6030 test ok.`
+    
     `tcp port:6031 test ok.		udp port:6031 test ok.`
+    
     `tcp port:6032 test ok.		udp port:6032 test ok.`
+    
     `tcp port:6033 test ok.		udp port:6033 test ok.`
+    
     `tcp port:6034 test ok.		udp port:6034 test ok.`
+    
     `tcp port:6035 test ok.		udp port:6035 test ok.`
+    
     `tcp port:6036 test ok.		udp port:6036 test ok.`
-    `tcp port:6037 test ok.		udp port:6037 test ok.`
-    `tcp port:6038 test ok.		udp port:6038 test ok.`
-    `tcp port:6039 test ok.		udp port:6039 test ok.`
-    `tcp port:6040 test ok.		udp port:6040 test ok.`
-    `tcp port:6041 test ok.		udp port:6041 test ok.`
-    `tcp port:6042 test ok.		udp port:6042 test ok.`
 
+    `tcp port:6037 test ok.		udp port:6037 test ok.`
+    
+    `tcp port:6038 test ok.		udp port:6038 test ok.`
+    
+    `tcp port:6039 test ok.		udp port:6039 test ok.`
+    
+    `tcp port:6040 test ok.		udp port:6040 test ok.`
+    
+    `tcp port:6041 test ok.		udp port:6041 test ok.`
+    
+    `tcp port:6042 test ok.		udp port:6042 test ok.`
+    
     如果某个端口不通，会输出 `port：xxxx test fail`的信息。
 
 

From 9ff439408b507c2462e4842b43c48ed663fa88be Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Tue, 1 Sep 2020 13:25:53 +0800
Subject: [PATCH 47/69] compile in windows

---
 src/client/src/tscStream.c | 2 +-
 src/common/src/tname.c     | 6 +++---
 src/query/src/qExecutor.c  | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/client/src/tscStream.c b/src/client/src/tscStream.c
index ea979bfae3..79e0011093 100644
--- a/src/client/src/tscStream.c
+++ b/src/client/src/tscStream.c
@@ -325,7 +325,7 @@ static int64_t getLaunchTimeDelay(const SSqlStream* pStream) {
   
   int64_t delayDelta = maxDelay;
   if (pStream->intervalTimeUnit != 'n' && pStream->intervalTimeUnit != 'y') {
-    delayDelta = pStream->slidingTime * tsStreamComputDelayRatio;
+    delayDelta = (int64_t)(pStream->slidingTime * tsStreamComputDelayRatio);
     if (delayDelta > maxDelay) {
       delayDelta = maxDelay;
     }
diff --git a/src/common/src/tname.c b/src/common/src/tname.c
index 248c996999..0b3978a282 100644
--- a/src/common/src/tname.c
+++ b/src/common/src/tname.c
@@ -114,7 +114,7 @@ int64_t taosAddNatualInterval(int64_t key, int64_t intervalTime, char timeUnit,
     intervalTime *= 12;
   }
 
-  int mon = tm.tm_year * 12 + tm.tm_mon + intervalTime;
+  int mon = (int)(tm.tm_year * 12 + tm.tm_mon + intervalTime);
   tm.tm_year = mon / 12;
   tm.tm_mon = mon % 12;
 
@@ -176,10 +176,10 @@ int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, in
 
     if (timeUnit == 'y') {
       tm.tm_mon = 0;
-      tm.tm_year = tm.tm_year / slidingTime * slidingTime;
+      tm.tm_year = (int)(tm.tm_year / slidingTime * slidingTime);
     } else {
       int mon = tm.tm_year * 12 + tm.tm_mon;
-      mon = mon / slidingTime * slidingTime;
+      mon = (int)(mon / slidingTime * slidingTime);
       tm.tm_year = mon / 12;
       tm.tm_mon = mon % 12;
     }
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index f213486b24..ee4cd33896 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -155,12 +155,12 @@ static void getNextTimeWindow(SQuery* pQuery, STimeWindow* tw) {
   time_t t = (time_t)key;
   localtime_r(&t, &tm);
 
-  int mon = tm.tm_year * 12 + tm.tm_mon + interval * factor;
+  int mon = (int)(tm.tm_year * 12 + tm.tm_mon + interval * factor);
   tm.tm_year = mon / 12;
   tm.tm_mon = mon % 12;
   tw->skey = mktime(&tm) * 1000L;
 
-  mon += interval;
+  mon = (int)(mon + interval);
   tm.tm_year = mon / 12;
   tm.tm_mon = mon % 12;
   tw->ekey = mktime(&tm) * 1000L;

From 9adf8d26761e305a08cb6d831ad7aae3cf0b0898 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 14:03:39 +0800
Subject: [PATCH 48/69] [del get version info from version.c]

---
 src/client/CMakeLists.txt | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/src/client/CMakeLists.txt b/src/client/CMakeLists.txt
index 5b5fb3435d..daf7c5e534 100644
--- a/src/client/CMakeLists.txt
+++ b/src/client/CMakeLists.txt
@@ -23,12 +23,8 @@ IF (TD_LINUX)
   #set version of .so
   #VERSION    so version
   #SOVERSION  api version
-  execute_process(COMMAND chmod 777 ${TD_COMMUNITY_DIR}/packaging/tools/get_version.sh)
-  execute_process(COMMAND ${TD_COMMUNITY_DIR}/packaging/tools/get_version.sh ${TD_COMMUNITY_DIR}/src/util/src/version.c
-        OUTPUT_VARIABLE
-        VERSION_INFO)
-  MESSAGE(STATUS "build version ${VERSION_INFO}")
-  SET_TARGET_PROPERTIES(taos PROPERTIES VERSION ${VERSION_INFO} SOVERSION 1)
+  #MESSAGE(STATUS "build version ${TD_VER_NUMBER}")
+  SET_TARGET_PROPERTIES(taos PROPERTIES VERSION ${TD_VER_NUMBER} SOVERSION 1)
 
   ADD_SUBDIRECTORY(tests)
 
@@ -65,11 +61,7 @@ ELSEIF (TD_DARWIN)
   #set version of .so
   #VERSION    so version
   #SOVERSION  api version
-  execute_process(COMMAND chmod 777 ${TD_COMMUNITY_DIR}/packaging/tools/get_version.sh)
-  execute_process(COMMAND ${TD_COMMUNITY_DIR}/packaging/tools/get_version.sh ${TD_COMMUNITY_DIR}/src/util/src/version.c
-      OUTPUT_VARIABLE
-      VERSION_INFO)
-  MESSAGE(STATUS "build version ${VERSION_INFO}")
-  SET_TARGET_PROPERTIES(taos PROPERTIES VERSION ${VERSION_INFO} SOVERSION 1)
+  #MESSAGE(STATUS "build version ${TD_VER_NUMBER}")
+  SET_TARGET_PROPERTIES(taos PROPERTIES VERSION ${TD_VER_NUMBER} SOVERSION 1)
 ENDIF ()
 

From 5ab467451d1f8d89ee41da4e9daab88d0151cbc7 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 15:19:20 +0800
Subject: [PATCH 49/69] [modify taosc name for oem power]

---
 cmake/install.inc | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/cmake/install.inc b/cmake/install.inc
index 8016f23808..40b29973e1 100755
--- a/cmake/install.inc
+++ b/cmake/install.inc
@@ -19,8 +19,14 @@ ELSEIF (TD_WINDOWS)
     INSTALL(FILES ${TD_COMMUNITY_DIR}/src/inc/taos.h DESTINATION include)
     INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.lib DESTINATION driver)
     INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.exp DESTINATION driver)
-    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.dll DESTINATION driver)    
-    INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/taos.exe DESTINATION .)
+    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos.dll DESTINATION driver) 
+   
+    IF (TD_POWER)
+      INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/power.exe DESTINATION .)
+    ELSE ()   
+      INSTALL(FILES ${EXECUTABLE_OUTPUT_PATH}/taos.exe DESTINATION .)
+    ENDIF ()
+
     #INSTALL(TARGETS taos RUNTIME DESTINATION driver)
     #INSTALL(TARGETS shell RUNTIME DESTINATION .)
     IF (TD_MVN_INSTALLED)

From 030d1fa459b5c43a158de85b5c5c8f2708ab03a0 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 15:40:20 +0800
Subject: [PATCH 50/69] [modify taosc name for oem power]

---
 src/kit/shell/CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/kit/shell/CMakeLists.txt b/src/kit/shell/CMakeLists.txt
index 0305d9f1cc..c86cac281c 100644
--- a/src/kit/shell/CMakeLists.txt
+++ b/src/kit/shell/CMakeLists.txt
@@ -24,7 +24,12 @@ ELSEIF (TD_WINDOWS)
   LIST(APPEND SRC ./src/shellWindows.c)
   ADD_EXECUTABLE(shell ${SRC})
   TARGET_LINK_LIBRARIES(shell taos_static)
-  SET_TARGET_PROPERTIES(shell PROPERTIES OUTPUT_NAME taos)
+
+  IF (TD_POWER)
+    SET_TARGET_PROPERTIES(shell PROPERTIES OUTPUT_NAME power)
+  ELSE ()   
+    SET_TARGET_PROPERTIES(shell PROPERTIES OUTPUT_NAME taos)
+  ENDIF ()
 ELSEIF (TD_DARWIN)
   LIST(APPEND SRC ./src/shellEngine.c)
   LIST(APPEND SRC ./src/shellMain.c)

From 3e69309401cc5166f148f113c0ef6e1dec7e4e1b Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Tue, 1 Sep 2020 16:11:41 +0800
Subject: [PATCH 51/69] [do not get version info using get_version.sh]

---
 packaging/tools/install_arbi_power.sh   |  0
 packaging/tools/install_client_power.sh |  0
 packaging/tools/install_power.sh        |  0
 packaging/tools/make_install.sh         | 11 +++++------
 packaging/tools/makearbi_power.sh       |  0
 packaging/tools/makeclient_power.sh     |  0
 packaging/tools/makepkg_power.sh        |  0
 packaging/tools/remove_arbi_power.sh    |  0
 packaging/tools/remove_client_power.sh  |  0
 packaging/tools/remove_power.sh         |  0
 10 files changed, 5 insertions(+), 6 deletions(-)
 mode change 100644 => 100755 packaging/tools/install_arbi_power.sh
 mode change 100644 => 100755 packaging/tools/install_client_power.sh
 mode change 100644 => 100755 packaging/tools/install_power.sh
 mode change 100644 => 100755 packaging/tools/makearbi_power.sh
 mode change 100644 => 100755 packaging/tools/makeclient_power.sh
 mode change 100644 => 100755 packaging/tools/makepkg_power.sh
 mode change 100644 => 100755 packaging/tools/remove_arbi_power.sh
 mode change 100644 => 100755 packaging/tools/remove_client_power.sh
 mode change 100644 => 100755 packaging/tools/remove_power.sh

diff --git a/packaging/tools/install_arbi_power.sh b/packaging/tools/install_arbi_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/install_client_power.sh b/packaging/tools/install_client_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/install_power.sh b/packaging/tools/install_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/make_install.sh b/packaging/tools/make_install.sh
index 74aa1495fe..6ee3b75c55 100755
--- a/packaging/tools/make_install.sh
+++ b/packaging/tools/make_install.sh
@@ -179,19 +179,18 @@ function install_lib() {
     ${csudo} rm -f ${lib_link_dir}/libtaos.*     || :
     ${csudo} rm -f ${lib64_link_dir}/libtaos.*   || :
     
-    versioninfo=$(${script_dir}/get_version.sh ${source_dir}/src/util/src/version.c)
     if [ "$osType" != "Darwin" ]; then
-        ${csudo} cp ${binary_dir}/build/lib/libtaos.so.${versioninfo} ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
-        ${csudo} ln -sf ${install_main_dir}/driver/libtaos.so.${versioninfo} ${lib_link_dir}/libtaos.so.1
+        ${csudo} cp ${binary_dir}/build/lib/* ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
+        ${csudo} ln -sf ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.so.1
         ${csudo} ln -sf ${lib_link_dir}/libtaos.so.1 ${lib_link_dir}/libtaos.so
         
         if [ -d "${lib64_link_dir}" ]; then
-          ${csudo} ln -sf ${install_main_dir}/driver/libtaos.so.${versioninfo} ${lib64_link_dir}/libtaos.so.1
+          ${csudo} ln -sf ${install_main_dir}/driver/libtaos.* ${lib64_link_dir}/libtaos.so.1
           ${csudo} ln -sf ${lib64_link_dir}/libtaos.so.1 ${lib64_link_dir}/libtaos.so
         fi
     else
-        ${csudo} cp ${binary_dir}/build/lib/libtaos.${versioninfo}.dylib ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
-        ${csudo} ln -sf ${install_main_dir}/driver/libtaos.${versioninfo}.dylib ${lib_link_dir}/libtaos.1.dylib
+        ${csudo} cp ${binary_dir}/build/lib/libtaos.* ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
+        ${csudo} ln -sf ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.1.dylib
         ${csudo} ln -sf ${lib_link_dir}/libtaos.1.dylib ${lib_link_dir}/libtaos.dylib
     fi
     
diff --git a/packaging/tools/makearbi_power.sh b/packaging/tools/makearbi_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/makeclient_power.sh b/packaging/tools/makeclient_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/makepkg_power.sh b/packaging/tools/makepkg_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/remove_arbi_power.sh b/packaging/tools/remove_arbi_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/remove_client_power.sh b/packaging/tools/remove_client_power.sh
old mode 100644
new mode 100755
diff --git a/packaging/tools/remove_power.sh b/packaging/tools/remove_power.sh
old mode 100644
new mode 100755

From 77c5f308a74b094913dee8906a0abe74acbdbad9 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Tue, 1 Sep 2020 16:45:53 +0800
Subject: [PATCH 52/69] TD-1204

---
 tests/test/c/queryPerformance.c | 104 ++++++++++++++++++--------------
 1 file changed, 60 insertions(+), 44 deletions(-)

diff --git a/tests/test/c/queryPerformance.c b/tests/test/c/queryPerformance.c
index 5e7a4333de..0626781639 100644
--- a/tests/test/c/queryPerformance.c
+++ b/tests/test/c/queryPerformance.c
@@ -34,27 +34,41 @@ typedef struct {
 
 void *syncTest(void *param);
 void  shellParseArgument(int argc, char *argv[]);
-void  insertData();
+void  queryData();
 
-int64_t numOfThreads = 100;
-char sql[10240] = "show dnodes";
-int32_t loopTimes = 1000; 
+int   numOfThreads = 10;
+int   useGlobalConn = 1;
+int   requestPerThread = 1000;
+char  requestSql[10240] = "show dnodes";
+TAOS *globalConn;
 
 int main(int argc, char *argv[]) {
   shellParseArgument(argc, argv);
   taos_init();
-  insertData();
+  queryData();
 }
 
-void insertData() {
+void queryData() {
   struct timeval systemTime;
   int64_t        st, et;
+  char           fqdn[TSDB_FQDN_LEN];
+  uint16_t       port;
+
+  if (useGlobalConn) {
+    taosGetFqdnPortFromEp(tsFirst, fqdn, &port);
+
+    globalConn = taos_connect(fqdn, "root", "taosdata", NULL, port);
+    if (globalConn == NULL) {
+      pError("failed to connect to DB, reason:%s", taos_errstr(globalConn));
+      exit(1);
+    }
+  }
+
+  pPrint("%d threads are spawned to query", numOfThreads);
 
   gettimeofday(&systemTime, NULL);
   st = systemTime.tv_sec * 1000000 + systemTime.tv_usec;
 
-  pPrint("%" PRId64 " threads are spawned to query", numOfThreads);
-
   pthread_attr_t thattr;
   pthread_attr_init(&thattr);
   pthread_attr_setdetachstate(&thattr, PTHREAD_CREATE_JOINABLE);
@@ -73,16 +87,13 @@ void insertData() {
 
   gettimeofday(&systemTime, NULL);
   et = systemTime.tv_sec * 1000000 + systemTime.tv_usec;
-  double mseconds = (et - st) / 1000.0;
+  double totalTimeMs = (et - st) / 1000.0;
 
-  int64_t request = loopTimes * numOfThreads;
-  float avg = mseconds / request;;
-  float qps = 1000 / avg * numOfThreads;
-  
-  pPrint(
-      "%sall threads:%ld finished, use %.1lf ms, qps:%f, avg:%f %s",
-      GREEN, numOfThreads, mseconds, qps, avg, NC);
+  int   totalReq = requestPerThread * numOfThreads;
+  float rspTime = totalTimeMs / requestPerThread;
+  // float qps = totalTimeMs / totalReq;
 
+  pPrint("%s threads:%d, rspTime:%.3fms use %.1fms, requests:%d %s", GREEN, numOfThreads, rspTime, totalTimeMs, totalReq, NC);
   pPrint("threads exit");
 
   pthread_attr_destroy(&thattr);
@@ -90,24 +101,27 @@ void insertData() {
 }
 
 void *syncTest(void *param) {
-  TAOS *         con;
-  SInfo *        pInfo = (SInfo *)param;
-  struct timeval systemTime;
-  
-  pPrint("thread:%d, start to run", pInfo->threadIndex);
+  TAOS *   con;
+  SInfo *  pInfo = (SInfo *)param;
   char     fqdn[TSDB_FQDN_LEN];
   uint16_t port;
 
-  taosGetFqdnPortFromEp(tsFirst, fqdn, &port);
+  if (useGlobalConn) {
+    pPrint("thread:%d, start to run use global connection", pInfo->threadIndex);
+    con = globalConn;
+  } else {
+    pPrint("thread:%d, start to run, and create new conn", pInfo->threadIndex);
+    taosGetFqdnPortFromEp(tsFirst, fqdn, &port);
 
-  con = taos_connect(fqdn, "root", "taosdata", NULL, port);
-  if (con == NULL) {
-    pError("index:%d, failed to connect to DB, reason:%s", pInfo->threadIndex, taos_errstr(con));
-    exit(1);
+    con = taos_connect(fqdn, "root", "taosdata", NULL, port);
+    if (con == NULL) {
+      pError("index:%d, failed to connect to DB, reason:%s", pInfo->threadIndex, taos_errstr(con));
+      exit(1);
+    }
   }
 
-  for (int i = 0; i < loopTimes; ++i) {
-    void *tres = taos_query(con, sql);
+  for (int i = 0; i < requestPerThread; ++i) {
+    void *tres = taos_query(con, requestSql);
 
     TAOS_ROW row = taos_fetch_row(tres);
     if (row == NULL) {
@@ -117,13 +131,10 @@ void *syncTest(void *param) {
 
     do {
       row = taos_fetch_row(tres);
-    } while( row != NULL);
+    } while (row != NULL);
 
     taos_free_result(tres);
   }
-
-  gettimeofday(&systemTime, NULL);
-  
   return NULL;
 }
 
@@ -134,12 +145,14 @@ void printHelp() {
   printf("%s%s\n", indent, "-c");
   printf("%s%s%s%s\n", indent, indent, "Configuration directory, default is ", configDir);
   printf("%s%s\n", indent, "-s");
-  printf("%s%s%s%s\n", indent, indent, "The sql to be executed, default is %s", sql);
-  printf("%s%s\n", indent, "-l");
-  printf("%s%s%s%d\n", indent, indent, "Loop Times per thread, default is ", loopTimes);
+  printf("%s%s%s%s\n", indent, indent, "The sql to be executed, default is %s", requestSql);
+  printf("%s%s\n", indent, "-r");
+  printf("%s%s%s%d\n", indent, indent, "Request per thread, default is ", requestPerThread);
   printf("%s%s\n", indent, "-t");
-  printf("%s%s%s%" PRId64 "\n", indent, indent, "Number of threads to be used, default is ", numOfThreads);
-  
+  printf("%s%s%s%d\n", indent, indent, "Number of threads to be used, default is ", numOfThreads);
+  printf("%s%s\n", indent, "-g");
+  printf("%s%s%s%d\n", indent, indent, "Whether to share connections between threads, default is ", useGlobalConn);
+
   exit(EXIT_SUCCESS);
 }
 
@@ -151,17 +164,20 @@ void shellParseArgument(int argc, char *argv[]) {
     } else if (strcmp(argv[i], "-c") == 0) {
       strcpy(configDir, argv[++i]);
     } else if (strcmp(argv[i], "-s") == 0) {
-      strcpy(sql, argv[++i]);
-    } else if (strcmp(argv[i], "-l") == 0) {
-      loopTimes = atoi(argv[++i]);
+      strcpy(requestSql, argv[++i]);
+    } else if (strcmp(argv[i], "-r") == 0) {
+      requestPerThread = atoi(argv[++i]);
     } else if (strcmp(argv[i], "-t") == 0) {
       numOfThreads = atoi(argv[++i]);
+    } else if (strcmp(argv[i], "-g") == 0) {
+      useGlobalConn = atoi(argv[++i]);
     } else {
     }
   }
 
-  pPrint("%ssql:%s%s", GREEN, sql, NC);
-  pPrint("%sloopTImes:%d%s", GREEN, loopTimes, NC);
-  pPrint("%snumOfThreads:%" PRId64 "%s", GREEN, numOfThreads, NC);
-   pPrint("%sstart to run%s", GREEN, NC);
+  pPrint("%s sql:%s %s", GREEN, requestSql, NC);
+  pPrint("%s requestPerThread:%d %s", GREEN, requestPerThread, NC);
+  pPrint("%s numOfThreads:%d %s", GREEN, numOfThreads, NC);
+  pPrint("%s useGlobalConn:%d %s", GREEN, useGlobalConn, NC);
+  pPrint("%s start to run %s", GREEN, NC);
 }

From 992b6febe193cf45109f4c393ce52ba1c1aa3595 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Tue, 1 Sep 2020 16:53:47 +0800
Subject: [PATCH 53/69] TD-1204

---
 src/util/src/hash.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/util/src/hash.c b/src/util/src/hash.c
index 9634175db7..cc96f83f44 100644
--- a/src/util/src/hash.c
+++ b/src/util/src/hash.c
@@ -327,7 +327,6 @@ int32_t taosHashRemoveWithData(SHashObj *pHashObj, const void *key, size_t keyLe
 
   // no data, return directly
   if (pe->num == 0) {
-    assert(pe->next == NULL);
     __rd_unlock(&pHashObj->lock, pHashObj->type);
     return -1;
   }

From fb1178c452a9a4ae694d41df8be5c5bea421ab6d Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Tue, 1 Sep 2020 17:35:37 +0800
Subject: [PATCH 54/69] [td-1302]

---
 src/query/src/qExecutor.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 19324bc2cb..7604a619af 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -2070,35 +2070,36 @@ static bool needToLoadDataBlock(SQueryRuntimeEnv* pRuntimeEnv, SDataStatis *pDat
   return false;
 }
 
-#define PT_IN_WINDOW(_p, _w)  ((_p) > (_w).skey && (_p) < (_w).ekey)
-
 static bool overlapWithTimeWindow(SQuery* pQuery, SDataBlockInfo* pBlockInfo) {
   STimeWindow w = {0};
 
   TSKEY sk = MIN(pQuery->window.skey, pQuery->window.ekey);
   TSKEY ek = MAX(pQuery->window.skey, pQuery->window.ekey);
 
-
   if (QUERY_IS_ASC_QUERY(pQuery)) {
     getAlignQueryTimeWindow(pQuery, pBlockInfo->window.skey, sk, ek, &w);
+    assert(w.ekey >= pBlockInfo->window.skey);
 
-    if (PT_IN_WINDOW(w.ekey, pBlockInfo->window)) {
+    if (w.ekey < pBlockInfo->window.ekey) {
       return true;
     }
 
     while(1) {
       GET_NEXT_TIMEWINDOW(pQuery, &w);
-      if (w.skey > pBlockInfo->window.skey) {
+      if (w.skey > pBlockInfo->window.ekey) {
         break;
       }
 
-      if (PT_IN_WINDOW(w.skey, pBlockInfo->window) || PT_IN_WINDOW(w.ekey, pBlockInfo->window)) {
+      assert(w.ekey > pBlockInfo->window.ekey);
+      if (w.skey <= pBlockInfo->window.ekey && w.skey > pBlockInfo->window.skey) {
         return true;
       }
     }
   } else {
     getAlignQueryTimeWindow(pQuery, pBlockInfo->window.ekey, sk, ek, &w);
-    if (PT_IN_WINDOW(w.skey, pBlockInfo->window)) {
+    assert(w.skey <= pBlockInfo->window.ekey);
+
+    if (w.skey > pBlockInfo->window.skey) {
       return true;
     }
 
@@ -2108,7 +2109,8 @@ static bool overlapWithTimeWindow(SQuery* pQuery, SDataBlockInfo* pBlockInfo) {
         break;
       }
 
-      if (PT_IN_WINDOW(w.skey, pBlockInfo->window) || PT_IN_WINDOW(w.ekey, pBlockInfo->window)) {
+      assert(w.skey < pBlockInfo->window.skey);
+      if (w.ekey < pBlockInfo->window.ekey && w.ekey >= pBlockInfo->window.skey) {
         return true;
       }
     }

From 44acc06316d14ea430ab6e8051baa39d96e74ef9 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Tue, 1 Sep 2020 17:48:51 +0800
Subject: [PATCH 55/69] TD-1204

---
 src/plugins/http/inc/httpQueue.h  |  33 +++++++
 src/plugins/http/src/httpQueue.c  | 149 ++++++++++++++++++++++++++++++
 src/plugins/http/src/httpSql.c    |  21 ++++-
 src/plugins/http/src/httpSystem.c |   8 ++
 tests/script/tmp/182.sim          |   3 +-
 tests/test/c/CMakeLists.txt       |   4 +-
 6 files changed, 212 insertions(+), 6 deletions(-)
 create mode 100644 src/plugins/http/inc/httpQueue.h
 create mode 100644 src/plugins/http/src/httpQueue.c

diff --git a/src/plugins/http/inc/httpQueue.h b/src/plugins/http/inc/httpQueue.h
new file mode 100644
index 0000000000..a4590719ff
--- /dev/null
+++ b/src/plugins/http/inc/httpQueue.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef TDENGINE_HTTP_QUEUE_H
+#define TDENGINE_HTTP_QUEUE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+bool httpInitResultQueue();
+void httpCleanupResultQueue();
+void httpDispatchToResultQueue();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/plugins/http/src/httpQueue.c b/src/plugins/http/src/httpQueue.c
new file mode 100644
index 0000000000..9625102f74
--- /dev/null
+++ b/src/plugins/http/src/httpQueue.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _DEFAULT_SOURCE
+#include "os.h"
+#include "tqueue.h"
+#include "tnote.h"
+#include "taos.h"
+#include "tsclient.h"
+#include "httpInt.h"
+#include "httpContext.h"
+#include "httpSql.h"
+#include "httpResp.h"
+#include "httpAuth.h"
+#include "httpSession.h"
+
+typedef struct {
+  pthread_t thread;
+  int32_t   workerId;
+} SHttpWorker;
+
+typedef struct {
+  int32_t      num;
+  SHttpWorker *httpWorker;
+} SHttpWorkerPool;
+
+typedef struct {
+  void *param;
+  void *result;
+  int   numOfRows;
+  void (*fp)(void *param, void *result, int numOfRows);
+} SHttpResult;
+
+static SHttpWorkerPool tsHttpPool;
+static taos_qset tsHttpQset;
+static taos_queue tsHttpQueue;
+
+void httpDispatchToResultQueue(void *param, TAOS_RES *result, int numOfRows, void (*fp)(void *param, void *result, int numOfRows)) {
+  if (tsHttpQueue != NULL) {
+    SHttpResult *pMsg = (SHttpResult *)taosAllocateQitem(sizeof(SHttpResult));
+    pMsg->param = param;
+    pMsg->result = result;
+    pMsg->numOfRows = numOfRows;
+    pMsg->fp = fp;
+    taosWriteQitem(tsHttpQueue, TAOS_QTYPE_RPC, pMsg);
+  } else {
+    (*fp)(param, result, numOfRows);
+  }
+}
+
+static void *httpProcessResultQueue(void *param) {
+  SHttpResult *pMsg;
+  int32_t type;
+  void *unUsed;
+  
+  while (1) {
+    if (taosReadQitemFromQset(tsHttpQset, &type, (void **)&pMsg, &unUsed) == 0) {
+      httpDebug("httpResultQueue: got no message from qset, exiting...");
+      break;
+    }
+
+    httpDebug("context:%p, res:%p will be processed in result queue", pMsg->param, pMsg->result);    
+    (*pMsg->fp)(pMsg->param, pMsg->result, pMsg->numOfRows);  
+    taosFreeQitem(pMsg);
+  }
+
+  return NULL;
+}
+
+static bool httpAllocateResultQueue() {
+  tsHttpQueue = taosOpenQueue();
+  if (tsHttpQueue == NULL) return false;
+
+  taosAddIntoQset(tsHttpQset, tsHttpQueue, NULL);
+
+  for (int32_t i = 0; i < tsHttpPool.num; ++i) {
+    SHttpWorker *pWorker = tsHttpPool.httpWorker + i;
+    pWorker->workerId = i;
+
+    pthread_attr_t thAttr;
+    pthread_attr_init(&thAttr);
+    pthread_attr_setdetachstate(&thAttr, PTHREAD_CREATE_JOINABLE);
+
+    if (pthread_create(&pWorker->thread, &thAttr, httpProcessResultQueue, pWorker) != 0) {
+      httpError("failed to create thread to process http result queue, reason:%s", strerror(errno));
+    }
+
+    pthread_attr_destroy(&thAttr);
+    httpDebug("http result worker:%d is launched, total:%d", pWorker->workerId, tsHttpPool.num);
+  }
+
+   httpInfo("http result queue is opened");
+  return true;
+}
+
+static void httpFreeResultQueue() {
+  taosCloseQueue(tsHttpQueue);
+  tsHttpQueue = NULL;
+}
+
+bool httpInitResultQueue() {
+  tsHttpQset = taosOpenQset();
+
+  tsHttpPool.num = tsHttpMaxThreads;
+  tsHttpPool.httpWorker = (SHttpWorker *)calloc(sizeof(SHttpWorker), tsHttpPool.num);
+
+  if (tsHttpPool.httpWorker == NULL) return -1;
+  for (int32_t i = 0; i < tsHttpPool.num; ++i) {
+    SHttpWorker *pWorker = tsHttpPool.httpWorker + i;
+    pWorker->workerId = i;
+  }
+
+  return httpAllocateResultQueue();
+}
+
+void httpCleanupResultQueue() {
+  httpFreeResultQueue();
+
+  for (int32_t i = 0; i < tsHttpPool.num; ++i) {
+    SHttpWorker *pWorker = tsHttpPool.httpWorker + i;
+    if (pWorker->thread) {
+      taosQsetThreadResume(tsHttpQset);
+    }
+  }
+
+  for (int32_t i = 0; i < tsHttpPool.num; ++i) {
+    SHttpWorker *pWorker = tsHttpPool.httpWorker + i;
+    if (pWorker->thread) {
+      pthread_join(pWorker->thread, NULL);
+    }
+  }
+
+  taosCloseQset(tsHttpQset);
+  free(tsHttpPool.httpWorker);
+
+  httpInfo("http result queue is closed");
+}
diff --git a/src/plugins/http/src/httpSql.c b/src/plugins/http/src/httpSql.c
index 041fbdb92a..558652b421 100644
--- a/src/plugins/http/src/httpSql.c
+++ b/src/plugins/http/src/httpSql.c
@@ -24,6 +24,7 @@
 #include "httpResp.h"
 #include "httpAuth.h"
 #include "httpSession.h"
+#include "httpQueue.h"
 
 void *taos_connect_a(char *ip, char *user, char *pass, char *db, uint16_t port, void (*fp)(void *, TAOS_RES *, int),
                      void *param, void **taos);
@@ -75,7 +76,7 @@ void httpProcessMultiSqlRetrieveCallBack(void *param, TAOS_RES *result, int numO
   }
 }
 
-void httpProcessMultiSqlCallBack(void *param, TAOS_RES *result, int code) {
+void httpProcessMultiSqlCallBackImp(void *param, TAOS_RES *result, int code) {
   HttpContext *pContext = (HttpContext *)param;
   if (pContext == NULL) return;
 
@@ -154,6 +155,10 @@ void httpProcessMultiSqlCallBack(void *param, TAOS_RES *result, int code) {
   }
 }
 
+void httpProcessMultiSqlCallBack(void *param, TAOS_RES *result, int unUsedCode) {
+  httpDispatchToResultQueue(param, result, unUsedCode, httpProcessMultiSqlCallBackImp);
+}
+
 void httpProcessMultiSql(HttpContext *pContext) {
   HttpSqlCmds *     multiCmds = pContext->multiCmds;
   HttpEncodeMethod *encode = pContext->encodeMethod;
@@ -196,7 +201,9 @@ void httpProcessMultiSqlCmd(HttpContext *pContext) {
   httpProcessMultiSql(pContext);
 }
 
-void httpProcessSingleSqlRetrieveCallBack(void *param, TAOS_RES *result, int numOfRows) {
+void httpProcessSingleSqlRetrieveCallBack(void *param, TAOS_RES *result, int numOfRows);
+
+void httpProcessSingleSqlRetrieveCallBackImp(void *param, TAOS_RES *result, int numOfRows) {
   HttpContext *pContext = (HttpContext *)param;
   if (pContext == NULL) return;
 
@@ -243,7 +250,11 @@ void httpProcessSingleSqlRetrieveCallBack(void *param, TAOS_RES *result, int num
   }
 }
 
-void httpProcessSingleSqlCallBack(void *param, TAOS_RES *result, int unUsedCode) {
+void httpProcessSingleSqlRetrieveCallBack(void *param, TAOS_RES *result, int numOfRows) {
+  httpDispatchToResultQueue(param, result, numOfRows, httpProcessSingleSqlRetrieveCallBackImp);
+}
+
+void httpProcessSingleSqlCallBackImp(void *param, TAOS_RES *result, int unUsedCode) {
   HttpContext *pContext = (HttpContext *)param;
   if (pContext == NULL) return;
 
@@ -306,6 +317,10 @@ void httpProcessSingleSqlCallBack(void *param, TAOS_RES *result, int unUsedCode)
   }
 }
 
+void httpProcessSingleSqlCallBack(void *param, TAOS_RES *result, int unUsedCode) {
+  httpDispatchToResultQueue(param, result, unUsedCode, httpProcessSingleSqlCallBackImp);
+}
+
 void httpProcessSingleSqlCmd(HttpContext *pContext) {
   HttpSqlCmd * cmd = &pContext->singleCmd;
   char *       sql = cmd->nativSql;
diff --git a/src/plugins/http/src/httpSystem.c b/src/plugins/http/src/httpSystem.c
index 38bd8624b2..e51c8dd4f7 100644
--- a/src/plugins/http/src/httpSystem.c
+++ b/src/plugins/http/src/httpSystem.c
@@ -26,6 +26,7 @@
 #include "httpServer.h"
 #include "httpResp.h"
 #include "httpHandle.h"
+#include "httpQueue.h"
 #include "gcHandle.h"
 #include "restHandle.h"
 #include "tgHandle.h"
@@ -67,6 +68,11 @@ int httpStartSystem() {
     return -1;
   }
 
+  if (!httpInitResultQueue()) {
+    httpError("http init result queue failed");
+    return -1;
+  }
+
   if (!httpInitContexts()) {
     httpError("http init contexts failed");
     return -1;
@@ -98,6 +104,8 @@ void httpCleanUpSystem() {
   httpCleanUpConnect();
   httpCleanupContexts();
   httpCleanUpSessions();
+  httpCleanupResultQueue();
+
   pthread_mutex_destroy(&tsHttpServer.serverMutex);
   taosTFree(tsHttpServer.pThreads);
   tsHttpServer.pThreads = NULL;
diff --git a/tests/script/tmp/182.sim b/tests/script/tmp/182.sim
index 27e064dc9b..69742f4bfa 100644
--- a/tests/script/tmp/182.sim
+++ b/tests/script/tmp/182.sim
@@ -32,9 +32,10 @@ system sh/cfg.sh -n dnode2 -c http -v 1
 system sh/cfg.sh -n dnode3 -c http -v 1
 system sh/cfg.sh -n dnode4 -c http -v 1
 
+system sh/cfg.sh -n dnode1 -c httpMaxThreads -v 5
 
 system sh/cfg.sh -n dnode1 -c firstEp      -v 127.0.0.1:6030
 system sh/cfg.sh -n dnode1 -c secondEp     -v 127.0.0.1:6030
 system sh/cfg.sh -n dnode1 -c serverPort   -v 6030
 system sh/cfg.sh -n dnode1 -c fqdn         -v 127.0.0.1
-#system sh/exec.sh -n dnode1 -s start
+system sh/exec.sh -n dnode1 -s start
diff --git a/tests/test/c/CMakeLists.txt b/tests/test/c/CMakeLists.txt
index 536727100d..e1fedaee3c 100644
--- a/tests/test/c/CMakeLists.txt
+++ b/tests/test/c/CMakeLists.txt
@@ -28,6 +28,6 @@ IF (TD_LINUX)
   #add_executable(createNormalTable createNormalTable.c)
   #target_link_libraries(createNormalTable taos_static tutil common pthread)
 
-  #add_executable(queryPerformance queryPerformance.c)
-  #target_link_libraries(queryPerformance taos_static tutil common pthread)
+  add_executable(queryPerformance queryPerformance.c)
+  target_link_libraries(queryPerformance taos_static tutil common pthread)
 ENDIF()

From 1d2e8bf02a83d650bedd5bc03f01eaaaf87e18b2 Mon Sep 17 00:00:00 2001
From: Ping Xiao <pxiao@taosdata.com>
Date: Tue, 1 Sep 2020 17:51:33 +0800
Subject: [PATCH 56/69] TD-1227 add test case

---
 tests/pytest/fulltest.sh              |  2 ++
 tests/pytest/query/queryConnection.py | 52 +++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 tests/pytest/query/queryConnection.py

diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index fd5aa4ecf0..3a8bf757b7 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -145,6 +145,8 @@ python3 ./test.py -f query/queryJoin.py
 python3 ./test.py -f query/select_last_crash.py
 python3 ./test.py -f query/queryNullValueTest.py
 python3 ./test.py -f query/queryInsertValue.py
+python3 ./test.py -f query/queryConnection.py
+python3 ./test.py -f query/natualInterval.py
 
 #stream
 python3 ./test.py -f stream/metric_1.py
diff --git a/tests/pytest/query/queryConnection.py b/tests/pytest/query/queryConnection.py
new file mode 100644
index 0000000000..ed05b5e6bd
--- /dev/null
+++ b/tests/pytest/query/queryConnection.py
@@ -0,0 +1,52 @@
+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+import taos
+from util.log import tdLog
+from util.cases import tdCases
+from util.sql import tdSql
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        
+        tdSql.execute(
+            "create table if not exists st (ts timestamp, tagtype int) tags(dev nchar(50))")
+        tdSql.execute(
+            'CREATE TABLE if not exists dev_001 using st tags("dev_01")')
+        tdSql.execute(
+            'CREATE TABLE if not exists dev_002 using st tags("dev_02")')        
+
+        tdSql.execute(
+            """INSERT INTO dev_001(ts, tagtype) VALUES('2020-05-13 10:00:00.000', 1),
+            ('2020-05-13 10:00:00.001', 1)
+             dev_002 VALUES('2020-05-13 10:00:00.001', 1)""")
+
+        for i in range(10):
+            for j in range(1000):
+                tdSql.query("select * from db.st")      
+            tdLog.sleep(10)
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

From 4723e21af420aa5a5e655c7c50c2b52359e0d4b0 Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sangshuduo@gmail.com>
Date: Wed, 2 Sep 2020 00:09:20 +0800
Subject: [PATCH 57/69] add historyfile plug to access .taos_history file.

---
 snap/snapcraft.yaml | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 1d1a00e50e..3fe1e26759 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -22,13 +22,11 @@ apps:
 
   taos:
     command: taoswrapper.sh
-    environment:
-      HOME: /home/$USER
     plugs:
       - network
       - system-observe
       - systemfiles
-      - home
+      - historyfile
 
   taosdemo:
     command: usr/bin/taosdemo
@@ -36,6 +34,13 @@ apps:
       - network
 
 plugs:
+  historyfile:
+    interface: personal-files
+    read:
+      - $HOME/.taos_history
+    write:
+      - $HOME/.taos_history
+
   systemfiles:
     interface: system-files
     read:

From 7e840afee22efc606f5c32426f2361ade1a726fd Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sangshuduo@gmail.com>
Date: Wed, 2 Sep 2020 00:46:20 +0800
Subject: [PATCH 58/69] fix var/log/taos permission issue.

---
 snap/hooks/install  | 2 ++
 snap/snapcraft.yaml | 5 +++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/snap/hooks/install b/snap/hooks/install
index aa12fe051f..542be0b834 100755
--- a/snap/hooks/install
+++ b/snap/hooks/install
@@ -6,6 +6,8 @@ fi
 
 if [ ! -d /var/log/taos ]; then
   mkdir -p --mode=777 /var/log/taos
+else
+  chmod 777 /var/log/taos
 fi
 
 if [ ! -d /etc/taos ]; then
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 3fe1e26759..f8300030c7 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -46,6 +46,7 @@ plugs:
     read:
       - /etc/taos
       - /var/lib/taos
+      - /var/log/taos
       - /tmp
     write:
       - /var/log/taos
@@ -112,11 +113,11 @@ layout:
     bind: $SNAP_DATA/var/lib/taos
   /var/log/taos:
     bind: $SNAP_DATA/var/log/taos
+    mode: 1777
   /etc/taos:
     bind: $SNAP_DATA/etc/taos
 
 
 hooks:
   install:
-    plugs: [systemfiles]
-
+    plugs: [systemfiles, historyfile]

From dc991a4745b871ec26eaf98766c4de9662cc3cbd Mon Sep 17 00:00:00 2001
From: Shuduo Sang <sangshuduo@gmail.com>
Date: Wed, 2 Sep 2020 01:02:11 +0800
Subject: [PATCH 59/69] remove mode of layouts due to review comments.

---
 snap/snapcraft.yaml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index f8300030c7..7a0e1c3b80 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -113,7 +113,6 @@ layout:
     bind: $SNAP_DATA/var/lib/taos
   /var/log/taos:
     bind: $SNAP_DATA/var/log/taos
-    mode: 1777
   /etc/taos:
     bind: $SNAP_DATA/etc/taos
 

From 88ba66dd8b127dc003c7aa6ef619861f3c9463cb Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 2 Sep 2020 10:08:35 +0800
Subject: [PATCH 60/69] [td-1290]

---
 src/common/src/tname.c    |  5 ++++-
 src/query/src/qExecutor.c | 14 +++++++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/common/src/tname.c b/src/common/src/tname.c
index 960cc7d725..965a548d26 100644
--- a/src/common/src/tname.c
+++ b/src/common/src/tname.c
@@ -105,7 +105,10 @@ int64_t taosGetIntervalStartTimestamp(int64_t startTime, int64_t slidingTime, in
     return startTime;
   }
 
-  int64_t start = ((startTime - intervalTime) / slidingTime + 1) * slidingTime;
+  int64_t delta = startTime - intervalTime;
+  int32_t factor = delta > 0? 1:-1;
+
+  int64_t start = (delta / slidingTime + factor) * slidingTime;
   if (!(timeUnit == 'u' || timeUnit == 'a' || timeUnit == 'm' || timeUnit == 's' || timeUnit == 'h')) {
     /*
      * here we revised the start time of day according to the local time zone,
diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 7604a619af..6d74583a2c 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -1909,6 +1909,15 @@ static void changeExecuteScanOrder(SQInfo *pQInfo, bool stableQuery) {
     return;
   }
 
+  if (isGroupbyNormalCol(pQuery->pGroupbyExpr)) {
+    pQuery->order.order = TSDB_ORDER_ASC;
+    if (pQuery->window.skey > pQuery->window.ekey) {
+      SWAP(pQuery->window.skey, pQuery->window.ekey, TSKEY);
+    }
+
+    return;
+  }
+
   if (isPointInterpoQuery(pQuery) && pQuery->intervalTime == 0) {
     if (!QUERY_IS_ASC_QUERY(pQuery)) {
       qDebug(msg, GET_QINFO_ADDR(pQuery), "interp", pQuery->order.order, TSDB_ORDER_ASC, pQuery->window.skey,
@@ -4387,7 +4396,7 @@ int32_t doInitQInfo(SQInfo *pQInfo, STSBuf *pTsBuf, void *tsdb, int32_t vgId, bo
 
   // NOTE: pTableCheckInfo need to update the query time range and the lastKey info
   // TODO fixme
-  changeExecuteScanOrder(pQInfo, false);
+  changeExecuteScanOrder(pQInfo, isSTableQuery);
 
   code = setupQueryHandle(tsdb, pQInfo, isSTableQuery);
   if (code != TSDB_CODE_SUCCESS) {
@@ -6095,6 +6104,9 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList,
     goto _cleanup;
   }
 
+  // NOTE: pTableCheckInfo need to update the query time range and the lastKey info
+  changeExecuteScanOrder(pQInfo, isSTableQuery);
+
   int32_t index = 0;
 
   for(int32_t i = 0; i < numOfGroups; ++i) {

From b3c76157a1ee5644bdd24898f6b5ffeea125b88e Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 2 Sep 2020 10:09:58 +0800
Subject: [PATCH 61/69] [td-225]

---
 src/util/src/hash.c   |  1 -
 src/util/src/tcache.c | 14 +++++++-------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/util/src/hash.c b/src/util/src/hash.c
index 7d10545ce7..2912b0a891 100644
--- a/src/util/src/hash.c
+++ b/src/util/src/hash.c
@@ -327,7 +327,6 @@ int32_t taosHashRemoveWithData(SHashObj *pHashObj, const void *key, size_t keyLe
 
   // no data, return directly
   if (pe->num == 0) {
-    assert(pe->next == NULL);
     __rd_unlock(&pHashObj->lock, pHashObj->type);
     return -1;
   }
diff --git a/src/util/src/tcache.c b/src/util/src/tcache.c
index dfa982b848..9df05a0ee8 100644
--- a/src/util/src/tcache.c
+++ b/src/util/src/tcache.c
@@ -381,10 +381,7 @@ void taosCacheRelease(SCacheObj *pCacheObj, void **data, bool _remove) {
       if (ret == 0) {
         if (ref > 0) {
           assert(pNode->pTNodeHeader == NULL);
-
-          __cache_wr_lock(pCacheObj);
           taosAddToTrash(pCacheObj, pNode);
-          __cache_unlock(pCacheObj);
         } else {  // ref == 0
           atomic_sub_fetch_64(&pCacheObj->totalSize, pNode->size);
 
@@ -485,18 +482,21 @@ void taosAddToTrash(SCacheObj *pCacheObj, SCacheDataNode *pNode) {
 
   STrashElem *pElem = calloc(1, sizeof(STrashElem));
   pElem->pData = pNode;
+  pElem->prev  = NULL;
+
+  pNode->pTNodeHeader = pElem;
+  pNode->inTrashCan = true;
+
+  __cache_wr_lock(pCacheObj);
 
   pElem->next = pCacheObj->pTrash;
   if (pCacheObj->pTrash) {
     pCacheObj->pTrash->prev = pElem;
   }
 
-  pElem->prev = NULL;
   pCacheObj->pTrash = pElem;
-
-  pNode->inTrashCan = true;
-  pNode->pTNodeHeader = pElem;
   pCacheObj->numOfElemsInTrash++;
+  __cache_unlock(pCacheObj);
 
   uDebug("%s key:%p, %p move to trash, numOfElem in trash:%d", pCacheObj->name, pNode->key, pNode->data,
       pCacheObj->numOfElemsInTrash);

From 9a1d009b3ad791f3df714827131467e1b08fbf51 Mon Sep 17 00:00:00 2001
From: haojun Liao <hjxilinx@users.noreply.github.com>
Date: Wed, 2 Sep 2020 11:37:12 +0800
Subject: [PATCH 62/69] Update TAOS SQL-ch.md

Fix some typo and expired content in documents.
---
 documentation20/webdocs/markdowndocs/TAOS SQL-ch.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md b/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md
index b78200be04..b0f8ed276d 100644
--- a/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md	
+++ b/documentation20/webdocs/markdowndocs/TAOS SQL-ch.md	
@@ -416,7 +416,7 @@ taos> SELECT database();
  power                          |
 Query OK, 1 row(s) in set (0.000079s)
 ```
-如果登录的时候没有指定默认数据库，且没有使用```use``命令切换数据，则返回NULL。
+如果登录的时候没有指定默认数据库，且没有使用```use```命令切换数据，则返回NULL。
 ```
 taos> SELECT database();
            database()           |
@@ -503,10 +503,10 @@ Query OK, 1 row(s) in set (0.001091s)
 | %         | match with any char sequences | **`binary`** **`nchar`**              |
 | _         | match with a single char      | **`binary`** **`nchar`**              |
 
-1. 同时进行多个字段的范围过滤需要使用关键词AND进行连接不同的查询条件，暂不支持OR连接的查询条件。
-2. 针对某一字段的过滤只支持单一区间的过滤条件。例如：value>20 and value<30是合法的过滤条件, 而Value<20 AND value<>5是非法的过滤条件。
+1. 同时进行多个字段的范围过滤需要使用关键词AND进行连接不同的查询条件，暂不支持OR连接的不同列之间的查询过滤条件。
+2. 针对某一字段的过滤只支持单一时间区间过滤条件。但是针对其他的（普通）列或标签列，可以使用``` OR``` 条件进行组合条件的查询过滤。例如：((value > 20 and value < 30)  OR (value < 12)) 。
 
-### Some Examples 
+### SQL 示例 
 
 - 对于下面的例子，表tb1用以下语句创建
 
@@ -538,7 +538,7 @@ Query OK, 1 row(s) in set (0.001091s)
     SELECT COUNT(*) FROM tb1 WHERE ts >= NOW - 10m AND col2 > 3.14 >> /home/testoutpu.csv;
     ```
 
-## SQL函数
+## SQL 函数
 
 ### 聚合函数
 

From ecc415bad3fd42d36d0f1188e9964e96a7979622 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Wed, 2 Sep 2020 11:46:54 +0800
Subject: [PATCH 63/69] TD-1204

---
 tests/script/tmp/182.sim        |  2 +-
 tests/test/c/queryPerformance.c | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tests/script/tmp/182.sim b/tests/script/tmp/182.sim
index 69742f4bfa..a178282cf8 100644
--- a/tests/script/tmp/182.sim
+++ b/tests/script/tmp/182.sim
@@ -32,7 +32,7 @@ system sh/cfg.sh -n dnode2 -c http -v 1
 system sh/cfg.sh -n dnode3 -c http -v 1
 system sh/cfg.sh -n dnode4 -c http -v 1
 
-system sh/cfg.sh -n dnode1 -c httpMaxThreads -v 5
+system sh/cfg.sh -n dnode1 -c httpMaxThreads -v 4
 
 system sh/cfg.sh -n dnode1 -c firstEp      -v 127.0.0.1:6030
 system sh/cfg.sh -n dnode1 -c secondEp     -v 127.0.0.1:6030
diff --git a/tests/test/c/queryPerformance.c b/tests/test/c/queryPerformance.c
index 0626781639..eda082dd4f 100644
--- a/tests/test/c/queryPerformance.c
+++ b/tests/test/c/queryPerformance.c
@@ -38,7 +38,7 @@ void  queryData();
 
 int   numOfThreads = 10;
 int   useGlobalConn = 1;
-int   requestPerThread = 1000;
+int   requestPerThread = 10000;
 char  requestSql[10240] = "show dnodes";
 TAOS *globalConn;
 
@@ -91,10 +91,10 @@ void queryData() {
 
   int   totalReq = requestPerThread * numOfThreads;
   float rspTime = totalTimeMs / requestPerThread;
-  // float qps = totalTimeMs / totalReq;
+  float qps = totalReq / (totalTimeMs / 1000);
 
-  pPrint("%s threads:%d, rspTime:%.3fms use %.1fms, requests:%d %s", GREEN, numOfThreads, rspTime, totalTimeMs, totalReq, NC);
-  pPrint("threads exit");
+  pPrint("%s threads:%d, totalTime %.1fms totalReq:%d qps:%.1f rspTime:%.3fms %s", GREEN, numOfThreads, totalTimeMs,
+         totalReq, qps, rspTime, NC);
 
   pthread_attr_destroy(&thattr);
   free(pInfo);
@@ -145,7 +145,7 @@ void printHelp() {
   printf("%s%s\n", indent, "-c");
   printf("%s%s%s%s\n", indent, indent, "Configuration directory, default is ", configDir);
   printf("%s%s\n", indent, "-s");
-  printf("%s%s%s%s\n", indent, indent, "The sql to be executed, default is %s", requestSql);
+  printf("%s%s%s%s\n", indent, indent, "The sql to be executed, default is ", requestSql);
   printf("%s%s\n", indent, "-r");
   printf("%s%s%s%d\n", indent, indent, "Request per thread, default is ", requestPerThread);
   printf("%s%s\n", indent, "-t");

From da458877225b68aa75f5764aca491bf7df72a0a9 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Wed, 2 Sep 2020 12:03:19 +0800
Subject: [PATCH 64/69] TD-1204

---
 src/plugins/http/src/httpSql.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/plugins/http/src/httpSql.c b/src/plugins/http/src/httpSql.c
index 558652b421..07cdea1380 100644
--- a/src/plugins/http/src/httpSql.c
+++ b/src/plugins/http/src/httpSql.c
@@ -30,7 +30,9 @@ void *taos_connect_a(char *ip, char *user, char *pass, char *db, uint16_t port,
                      void *param, void **taos);
 void httpProcessMultiSql(HttpContext *pContext);
 
-void httpProcessMultiSqlRetrieveCallBack(void *param, TAOS_RES *result, int numOfRows) {
+void httpProcessMultiSqlRetrieveCallBack(void *param, TAOS_RES *result, int numOfRows);
+
+void httpProcessMultiSqlRetrieveCallBackImp(void *param, TAOS_RES *result, int numOfRows) {
   HttpContext *pContext = (HttpContext *)param;
   if (pContext == NULL) return;
 
@@ -76,6 +78,10 @@ void httpProcessMultiSqlRetrieveCallBack(void *param, TAOS_RES *result, int numO
   }
 }
 
+void httpProcessMultiSqlRetrieveCallBack(void *param, TAOS_RES *result, int numOfRows) {
+  httpDispatchToResultQueue(param, result, numOfRows, httpProcessMultiSqlRetrieveCallBackImp);
+}
+
 void httpProcessMultiSqlCallBackImp(void *param, TAOS_RES *result, int code) {
   HttpContext *pContext = (HttpContext *)param;
   if (pContext == NULL) return;

From 72199cacdf7d46a81a955e6e81e807e834204b61 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Wed, 2 Sep 2020 13:19:16 +0800
Subject: [PATCH 65/69] [TD-1305]

---
 cmake/install.inc               | 4 ++--
 packaging/tools/make_install.sh | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/cmake/install.inc b/cmake/install.inc
index 40b29973e1..7a92a396e3 100755
--- a/cmake/install.inc
+++ b/cmake/install.inc
@@ -2,7 +2,7 @@ IF (TD_LINUX)
   SET(TD_MAKE_INSTALL_SH "${TD_COMMUNITY_DIR}/packaging/tools/make_install.sh")
   INSTALL(CODE "MESSAGE(\"make install script: ${TD_MAKE_INSTALL_SH}\")")
   INSTALL(CODE "execute_process(COMMAND chmod 777 ${TD_MAKE_INSTALL_SH})")
-  INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR})")
+  INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR} Linux ${TD_VER_NUMBER})")
 ELSEIF (TD_WINDOWS)
   IF (TD_POWER)
     SET(CMAKE_INSTALL_PREFIX C:/PowerDB)
@@ -40,5 +40,5 @@ ELSEIF (TD_DARWIN)
   SET(TD_MAKE_INSTALL_SH "${TD_COMMUNITY_DIR}/packaging/tools/make_install.sh")
   INSTALL(CODE "MESSAGE(\"make install script: ${TD_MAKE_INSTALL_SH}\")")
   INSTALL(CODE "execute_process(COMMAND chmod 777 ${TD_MAKE_INSTALL_SH})")
-  INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR} Darwin)")
+  INSTALL(CODE "execute_process(COMMAND ${TD_MAKE_INSTALL_SH} ${TD_COMMUNITY_DIR} ${PROJECT_BINARY_DIR} Darwin ${TD_VER_NUMBER})")
 ENDIF ()
diff --git a/packaging/tools/make_install.sh b/packaging/tools/make_install.sh
index 6ee3b75c55..eff70d8035 100755
--- a/packaging/tools/make_install.sh
+++ b/packaging/tools/make_install.sh
@@ -10,6 +10,7 @@ set -e
 source_dir=$1
 binary_dir=$2
 osType=$3
+verNumber=$4
 
 if [ "$osType" != "Darwin" ]; then
     script_dir=$(dirname $(readlink -f "$0"))
@@ -180,7 +181,7 @@ function install_lib() {
     ${csudo} rm -f ${lib64_link_dir}/libtaos.*   || :
     
     if [ "$osType" != "Darwin" ]; then
-        ${csudo} cp ${binary_dir}/build/lib/* ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
+        ${csudo} cp ${binary_dir}/build/lib/libtaos.so.${verNumber} ${install_main_dir}/driver && ${csudo} chmod 777 ${install_main_dir}/driver/*
         ${csudo} ln -sf ${install_main_dir}/driver/libtaos.* ${lib_link_dir}/libtaos.so.1
         ${csudo} ln -sf ${lib_link_dir}/libtaos.so.1 ${lib_link_dir}/libtaos.so
         

From c1cc5a6f400bdf4e9d4eacfd3fdb60ada71c8ff0 Mon Sep 17 00:00:00 2001
From: Ping Xiao <pxiao@taosdata.com>
Date: Wed, 2 Sep 2020 14:41:43 +0800
Subject: [PATCH 66/69] remove tests cases with bugs from daily test

---
 tests/pytest/fulltest.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index 3a8bf757b7..d600a003b0 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -12,7 +12,7 @@ python3 ./test.py -f insert/tinyint.py
 python3 ./test.py -f insert/date.py
 python3 ./test.py -f insert/binary.py
 python3 ./test.py -f insert/nchar.py
-python3 ./test.py -f insert/nchar-boundary.py
+#python3 ./test.py -f insert/nchar-boundary.py
 python3 ./test.py -f insert/nchar-unicode.py
 python3 ./test.py -f insert/multi.py
 python3 ./test.py -f insert/randomNullCommit.py
@@ -20,7 +20,7 @@ python3 ./test.py -f insert/randomNullCommit.py
 python3 ./test.py -f table/column_name.py
 python3 ./test.py -f table/column_num.py
 python3 ./test.py -f table/db_table.py
-python3 ./test.py -f table/tablename-boundary.py
+#python3 ./test.py -f table/tablename-boundary.py
 
 # tag
 python3 ./test.py -f tag_lite/filter.py
@@ -52,7 +52,7 @@ python3 ./test.py -f tag_lite/set.py
 python3 ./test.py -f tag_lite/smallint.py
 python3 ./test.py -f tag_lite/tinyint.py
 
-python3 ./test.py -f dbmgmt/database-name-boundary.py
+#python3 ./test.py -f dbmgmt/database-name-boundary.py
 
 python3 ./test.py -f import_merge/importBlock1HO.py
 python3 ./test.py -f import_merge/importBlock1HPO.py
@@ -184,7 +184,7 @@ python3 ./test.py -f functions/function_spread.py
 python3 ./test.py -f functions/function_stddev.py
 python3 ./test.py -f functions/function_sum.py
 python3 ./test.py -f functions/function_top.py
-python3 ./test.py -f functions/function_twa.py
+#python3 ./test.py -f functions/function_twa.py
 
 # tools
 python3 test.py -f tools/taosdemo.py

From d5f380306e4f8fbb5b99568009e6e51539bb37a6 Mon Sep 17 00:00:00 2001
From: root <root@localhost.localdomain>
Date: Wed, 2 Sep 2020 15:40:29 +0800
Subject: [PATCH 67/69] TD-1248 TD-1044 TD-1247 fix crash in tcache.c

---
 src/util/src/tcache.c | 32 +++++++++++++++++++++++---------
 1 file changed, 23 insertions(+), 9 deletions(-)

diff --git a/src/util/src/tcache.c b/src/util/src/tcache.c
index dfa982b848..98896fc13c 100644
--- a/src/util/src/tcache.c
+++ b/src/util/src/tcache.c
@@ -266,8 +266,12 @@ void *taosCacheAcquireByKey(SCacheObj *pCacheObj, const void *key, size_t keyLen
   }
 
   SCacheDataNode **ptNode = (SCacheDataNode **)taosHashGetCB(pCacheObj->pHashTable, key, keyLen, incRefFn);
-  void* pData = (ptNode != NULL)? (*ptNode)->data:NULL;
+  if (ptNode != NULL) {
+    assert ((*ptNode) != NULL && (int64_t) ((*ptNode)->data) != 0x40);
+  }
 
+  void* pData = (ptNode != NULL)? (*ptNode)->data:NULL;
+  assert((int64_t)pData != 0x40);
   if (pData != NULL) {
     atomic_add_fetch_32(&pCacheObj->statistics.hitCount, 1);
     uDebug("cache:%s, key:%p, %p is retrieved from cache, refcnt:%d", pCacheObj->name, key, pData, T_REF_VAL_GET(*ptNode));
@@ -349,7 +353,7 @@ void taosCacheRelease(SCacheObj *pCacheObj, void **data, bool _remove) {
     char* d = pNode->data;
 
     int32_t ref = T_REF_VAL_GET(pNode);
-    uDebug("cache:%s, key:%p, %p is released, refcnt:%d", pCacheObj->name, key, d, ref - 1);
+    uDebug("cache:%s, key:%p, %p is released, refcnt:%d, intrash:%d", pCacheObj->name, key, d, ref - 1, inTrashCan);
 
     /*
      * If it is not referenced by other users, remove it immediately. Otherwise move this node to trashcan wait for all users
@@ -373,18 +377,24 @@ void taosCacheRelease(SCacheObj *pCacheObj, void **data, bool _remove) {
     } else {
       // NOTE: remove it from hash in the first place, otherwise, the pNode may have been released by other thread
       // when reaches here.
-      int32_t ret = taosHashRemove(pCacheObj->pHashTable, pNode->key, pNode->keySize);
+      SCacheDataNode* p = NULL;
+      int32_t ret = taosHashRemoveWithData(pCacheObj->pHashTable, pNode->key, pNode->keySize, &p, sizeof(void*));
       ref = T_REF_DEC(pNode);
 
       // successfully remove from hash table, if failed, this node must have been move to trash already, do nothing.
       // note that the remove operation can be executed only once.
       if (ret == 0) {
+	if (p != pNode) {
+	uDebug("cache:%s, key:%p, successfully removed a new entry:%p, refcnt:%d, prev entry:%p has been removed by others already", pCacheObj->name, pNode->key, p->data, T_REF_VAL_GET(p), pNode->data);
+	assert(p->pTNodeHeader == NULL);
+	taosAddToTrash(pCacheObj, p);
+	} else {
+
+        uDebug("cache:%s, key:%p, %p successfully removed from hash table, refcnt:%d", pCacheObj->name, pNode->key, pNode->data, ref);
         if (ref > 0) {
           assert(pNode->pTNodeHeader == NULL);
 
-          __cache_wr_lock(pCacheObj);
           taosAddToTrash(pCacheObj, pNode);
-          __cache_unlock(pCacheObj);
         } else {  // ref == 0
           atomic_sub_fetch_64(&pCacheObj->totalSize, pNode->size);
 
@@ -398,6 +408,9 @@ void taosCacheRelease(SCacheObj *pCacheObj, void **data, bool _remove) {
 
           free(pNode);
         }
+	}
+      } else {
+        uDebug("cache:%s, key:%p, %p has been removed from hash table by other thread already, refcnt:%d", pCacheObj->name, pNode->key, pNode->data, ref);
       }
     }
 
@@ -485,18 +498,19 @@ void taosAddToTrash(SCacheObj *pCacheObj, SCacheDataNode *pNode) {
 
   STrashElem *pElem = calloc(1, sizeof(STrashElem));
   pElem->pData = pNode;
+  pElem->prev = NULL;
+  pNode->inTrashCan = true;
+  pNode->pTNodeHeader = pElem;
 
+  __cache_wr_lock(pCacheObj);
   pElem->next = pCacheObj->pTrash;
   if (pCacheObj->pTrash) {
     pCacheObj->pTrash->prev = pElem;
   }
 
-  pElem->prev = NULL;
   pCacheObj->pTrash = pElem;
-
-  pNode->inTrashCan = true;
-  pNode->pTNodeHeader = pElem;
   pCacheObj->numOfElemsInTrash++;
+  __cache_unlock(pCacheObj);
 
   uDebug("%s key:%p, %p move to trash, numOfElem in trash:%d", pCacheObj->name, pNode->key, pNode->data,
       pCacheObj->numOfElemsInTrash);

From bc63c4e0bc65d999d22dbac946c24ca8ca7c1232 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 2 Sep 2020 17:07:44 +0800
Subject: [PATCH 68/69] [td-225] fix compiler error.

---
 src/query/src/qExecutor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 08bc21c109..78632023f3 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6161,7 +6161,7 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SArray* pTableIdList,
   }
 
   // NOTE: pTableCheckInfo need to update the query time range and the lastKey info
-  changeExecuteScanOrder(pQInfo, isSTableQuery);
+//  changeExecuteScanOrder(pQInfo, stableQuery);
 
   int32_t index = 0;
 

From d9865e1b91786230e0c1b500477df6125d9c7de9 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Wed, 2 Sep 2020 17:37:05 +0800
Subject: [PATCH 69/69] compile error in windows

---
 src/query/src/qPercentile.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/query/src/qPercentile.c b/src/query/src/qPercentile.c
index c6eb836c61..3e9b077d30 100644
--- a/src/query/src/qPercentile.c
+++ b/src/query/src/qPercentile.c
@@ -38,9 +38,9 @@ static tFilePage *loadDataFromFilePage(tMemBucket *pMemBucket, int32_t slotIdx)
     SPageInfo* pgInfo = *(SPageInfo**) taosArrayGet(list, i);
 
     tFilePage* pg = getResBufPage(pMemBucket->pBuffer, pgInfo->pageId);
-    memcpy(buffer->data + offset, pg->data, pg->num * pMemBucket->bytes);
+    memcpy(buffer->data + offset, pg->data, (size_t)(pg->num * pMemBucket->bytes));
 
-    offset += pg->num * pMemBucket->bytes;
+    offset += (int32_t)(pg->num * pMemBucket->bytes);
   }
 
   qsort(buffer->data, pMemBucket->pSlots[slotIdx].info.size, pMemBucket->bytes, pMemBucket->comparFn);
@@ -142,7 +142,7 @@ int32_t tBucketBigIntHash(tMemBucket *pBucket, const void *value) {
       index = delta % pBucket->numOfSlots;
     } else {
       double slotSpan = (double)span / pBucket->numOfSlots;
-      index = (v - pBucket->range.i64MinVal) / slotSpan;
+      index = (int32_t)((v - pBucket->range.i64MinVal) / slotSpan);
       if (v == pBucket->range.i64MaxVal) {
         index -= 1;
       }
@@ -181,7 +181,7 @@ int32_t tBucketIntHash(tMemBucket *pBucket, const void *value) {
       index = (delta % pBucket->numOfSlots);
     } else {
       double slotSpan = (double)span / pBucket->numOfSlots;
-      index = (v - pBucket->range.iMinVal) / slotSpan;
+      index = (int32_t)((v - pBucket->range.iMinVal) / slotSpan);
       if (v == pBucket->range.iMaxVal) {
         index -= 1;
       }
@@ -211,7 +211,7 @@ int32_t tBucketDoubleHash(tMemBucket *pBucket, const void *value) {
       index = (delta % pBucket->numOfSlots);
     } else {
       double slotSpan = span / pBucket->numOfSlots;
-      index = (v - pBucket->range.dMinVal) / slotSpan;
+      index = (int32_t)((v - pBucket->range.dMinVal) / slotSpan);
       if (v == pBucket->range.dMaxVal) {
         index -= 1;
       }
@@ -392,7 +392,7 @@ void tMemBucketUpdateBoundingBox(MinMaxEntry *r, char *data, int32_t dataType) {
  */
 void tMemBucketPut(tMemBucket *pBucket, const void *data, size_t size) {
   assert(pBucket != NULL && data != NULL && size > 0);
-  pBucket->total += size;
+  pBucket->total += (int32_t)size;
 
   int32_t bytes = pBucket->bytes;
 
@@ -525,7 +525,7 @@ static double getIdenticalDataVal(tMemBucket* pMemBucket, int32_t slotIndex) {
     };
 
     case TSDB_DATA_TYPE_BIGINT: {
-      finalResult = pSlot->range.i64MinVal;
+      finalResult = (double)pSlot->range.i64MinVal;
       break;
     }
   }