diff --git a/cmake/taosadapter_CMakeLists.txt.in b/cmake/taosadapter_CMakeLists.txt.in
index 79d54f522e..cc46ef9938 100644
--- a/cmake/taosadapter_CMakeLists.txt.in
+++ b/cmake/taosadapter_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taosadapter
 ExternalProject_Add(taosadapter
         GIT_REPOSITORY https://github.com/taosdata/taosadapter.git
-        GIT_TAG 0d5663d
+        GIT_TAG ff7de07
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taosadapter"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/include/common/systable.h b/include/common/systable.h
index 8b29525db3..57f85f16bc 100644
--- a/include/common/systable.h
+++ b/include/common/systable.h
@@ -46,6 +46,7 @@ extern "C" {
 #define TSDB_INS_TABLE_SUBSCRIPTIONS     "ins_subscriptions"
 #define TSDB_INS_TABLE_TOPICS            "ins_topics"
 #define TSDB_INS_TABLE_STREAMS           "ins_streams"
+#define TSDB_INS_TABLE_STREAM_TASKS      "ins_stream_tasks"
 
 #define TSDB_PERFORMANCE_SCHEMA_DB   "performance_schema"
 #define TSDB_PERFS_TABLE_SMAS        "perf_smas"
diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 99c5c72e2f..3281bca96a 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -119,6 +119,7 @@ typedef enum _mgmt_table {
   TSDB_MGMT_TABLE_QUERIES,
   TSDB_MGMT_TABLE_VNODES,
   TSDB_MGMT_TABLE_APPS,
+  TSDB_MGMT_TABLE_STREAM_TASKS,
   TSDB_MGMT_TABLE_MAX,
 } EShowType;
 
diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index a1dad1806d..d0971b013f 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -74,9 +74,8 @@ typedef struct SColumnNode {
   char        tableName[TSDB_TABLE_NAME_LEN];
   char        tableAlias[TSDB_TABLE_NAME_LEN];
   char        colName[TSDB_COL_NAME_LEN];
-  // SNode*      pProjectRef;
-  int16_t dataBlockId;
-  int16_t slotId;
+  int16_t     dataBlockId;
+  int16_t     slotId;
 } SColumnNode;
 
 typedef struct SColumnRefNode {
diff --git a/packaging/release.bat b/packaging/release.bat
index 4ab7297f03..4c82c5ead5 100644
--- a/packaging/release.bat
+++ b/packaging/release.bat
@@ -39,7 +39,7 @@ if not exist %work_dir%\debug\ver-%2-x86 (
 	md %work_dir%\debug\ver-%2-x86
 )
 cd %work_dir%\debug\ver-%2-x64
-rem #call vcvarsall.bat x64
+call vcvarsall.bat x64
 cmake ../../ -G "NMake Makefiles JOM" -DCMAKE_MAKE_PROGRAM=jom -DBUILD_TOOLS=true -DWEBSOCKET=true -DBUILD_HTTP=false -DBUILD_TEST=false -DVERNUMBER=%2 -DCPUTYPE=x64
 cmake --build .
 rd /s /Q C:\TDengine
diff --git a/packaging/tools/tdengine.iss b/packaging/tools/tdengine.iss
index 981bee91b8..1c0c105179 100644
--- a/packaging/tools/tdengine.iss
+++ b/packaging/tools/tdengine.iss
@@ -61,6 +61,16 @@ Source: {#MyAppSourceDir}{#MyAppExeName}; DestDir: "{app}"; Excludes: {#MyAppExc
 Source: {#MyAppSourceDir}{#MyAppTaosdemoExeName}; DestDir: "{app}"; Flags: igNoreversion recursesubdirs createallsubdirs
 
 
+[run]
+Filename: {sys}\sc.exe; Parameters: "create taosd start= DEMAND binPath= ""C:\\TDengine\\taosd.exe --win_service""" ; Flags: runhidden
+Filename: {sys}\sc.exe; Parameters: "create taosadapter start= DEMAND binPath= ""C:\\TDengine\\taosadapter.exe --win_service""" ; Flags: runhidden
+
+[UninstallRun]
+RunOnceId: "stoptaosd"; Filename: {sys}\sc.exe; Parameters: "stop taosd" ; Flags: runhidden
+RunOnceId: "stoptaosadapter"; Filename: {sys}\sc.exe; Parameters: "stop taosadapter" ; Flags: runhidden
+RunOnceId: "deltaosd"; Filename: {sys}\sc.exe; Parameters: "delete taosd" ; Flags: runhidden
+RunOnceId: "deltaosadapter"; Filename: {sys}\sc.exe; Parameters: "delete taosadapter" ; Flags: runhidden
+
 [Registry]
 Root: HKLM; Subkey: "SYSTEM\CurrentControlSet\Control\Session Manager\Environment"; \
     ValueType: expandsz; ValueName: "Path"; ValueData: "{olddata};C:\TDengine"; \
diff --git a/source/common/src/systable.c b/source/common/src/systable.c
index d3d006ab35..c3a1f9f67e 100644
--- a/source/common/src/systable.c
+++ b/source/common/src/systable.c
@@ -134,7 +134,7 @@ static const SSysDbTableSchema userStbsSchema[] = {
 };
 
 static const SSysDbTableSchema streamSchema[] = {
-    {.name = "stream_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
+    {.name = "stream_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
     {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP, .sysInfo = false},
     {.name = "sql", .bytes = TSDB_SHOW_SQL_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
     {.name = "status", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
@@ -145,6 +145,15 @@ static const SSysDbTableSchema streamSchema[] = {
     {.name = "trigger", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
 };
 
+static const SSysDbTableSchema streamTaskSchema[] = {
+    {.name = "stream_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
+    {.name = "task_id", .bytes = 8, .type = TSDB_DATA_TYPE_INT, .sysInfo = false},
+    {.name = "node_type", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
+    {.name = "node_id", .bytes = 8, .type = TSDB_DATA_TYPE_INT, .sysInfo = false},
+    {.name = "level", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
+    {.name = "status", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
+};
+
 static const SSysDbTableSchema userTblsSchema[] = {
     {.name = "table_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
     {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR, .sysInfo = false},
@@ -287,6 +296,7 @@ static const SSysTableMeta infosMeta[] = {
     {TSDB_INS_TABLE_TOPICS, topicSchema, tListLen(topicSchema), false},
     {TSDB_INS_TABLE_SUBSCRIPTIONS, subscriptionSchema, tListLen(subscriptionSchema), false},
     {TSDB_INS_TABLE_STREAMS, streamSchema, tListLen(streamSchema), false},
+    {TSDB_INS_TABLE_STREAM_TASKS, streamTaskSchema, tListLen(streamTaskSchema), false},
     {TSDB_INS_TABLE_VNODES, vnodesSchema, tListLen(vnodesSchema), true},
 };
 
diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index e8d5989e4d..f7b1196248 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -277,7 +277,9 @@ int32_t colDataMergeCol(SColumnInfoData* pColumnInfoData, int32_t numOfRow1, int
       pColumnInfoData->varmeta.allocLen = len + oldLen;
     }
 
-    memcpy(pColumnInfoData->pData + oldLen, pSource->pData, len);
+    if (pColumnInfoData->pData && pSource->pData) { // TD-20382
+      memcpy(pColumnInfoData->pData + oldLen, pSource->pData, len);
+    }
     pColumnInfoData->varmeta.length = len + oldLen;
   } else {
     if (finalNumOfRows > (*capacity)) {
diff --git a/source/dnode/mnode/impl/src/mndShow.c b/source/dnode/mnode/impl/src/mndShow.c
index b0af98b933..20c2ebb0a4 100644
--- a/source/dnode/mnode/impl/src/mndShow.c
+++ b/source/dnode/mnode/impl/src/mndShow.c
@@ -106,6 +106,8 @@ static int32_t convertToRetrieveType(char *name, int32_t len) {
     type = TSDB_MGMT_TABLE_STREAMS;
   } else if (strncasecmp(name, TSDB_PERFS_TABLE_APPS, len) == 0) {
     type = TSDB_MGMT_TABLE_APPS;
+  } else if (strncasecmp(name, TSDB_INS_TABLE_STREAM_TASKS, len) == 0) {
+    type = TSDB_MGMT_TABLE_STREAM_TASKS;
   } else {
     //    ASSERT(0);
   }
diff --git a/source/dnode/mnode/impl/src/mndStream.c b/source/dnode/mnode/impl/src/mndStream.c
index 594c13f957..c649180285 100644
--- a/source/dnode/mnode/impl/src/mndStream.c
+++ b/source/dnode/mnode/impl/src/mndStream.c
@@ -41,6 +41,8 @@ static int32_t mndProcessStreamMetaReq(SRpcMsg *pReq);
 static int32_t mndGetStreamMeta(SRpcMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta);
 static int32_t mndRetrieveStream(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
 static void    mndCancelGetNextStream(SMnode *pMnode, void *pIter);
+static int32_t mndRetrieveStreamTask(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
+static void    mndCancelGetNextStreamTask(SMnode *pMnode, void *pIter);
 
 int32_t mndInitStream(SMnode *pMnode) {
   SSdbTable table = {
@@ -62,6 +64,8 @@ int32_t mndInitStream(SMnode *pMnode) {
 
   mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_STREAMS, mndRetrieveStream);
   mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_STREAMS, mndCancelGetNextStream);
+  mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_STREAM_TASKS, mndRetrieveStreamTask);
+  mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_STREAM_TASKS, mndCancelGetNextStreamTask);
 
   return sdbSetTable(pMnode->pSdb, table);
 }
@@ -891,7 +895,7 @@ static int32_t mndRetrieveStream(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     SName            n;
     int32_t          cols = 0;
 
-    char streamName[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
+    char streamName[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
     STR_WITH_MAXSIZE_TO_VARSTR(streamName, mndGetDbStr(pStream->name), sizeof(streamName));
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)streamName, false);
@@ -953,3 +957,105 @@ static void mndCancelGetNextStream(SMnode *pMnode, void *pIter) {
   SSdb *pSdb = pMnode->pSdb;
   sdbCancelFetch(pSdb, pIter);
 }
+
+static int32_t mndRetrieveStreamTask(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rowsCapacity) {
+  SMnode     *pMnode = pReq->info.node;
+  SSdb       *pSdb = pMnode->pSdb;
+  int32_t     numOfRows = 0;
+  SStreamObj *pStream = NULL;
+
+  while (numOfRows < rowsCapacity) {
+    pShow->pIter = sdbFetch(pSdb, SDB_STREAM, pShow->pIter, (void **)&pStream);
+    if (pShow->pIter == NULL) break;
+
+    // lock
+    taosRLockLatch(&pStream->lock);
+    // count task num
+    int32_t sz = taosArrayGetSize(pStream->tasks);
+    int32_t count = 0;
+    for (int32_t i = 0; i < sz; i++) {
+      SArray *pLevel = taosArrayGetP(pStream->tasks, i);
+      count += taosArrayGetSize(pLevel);
+    }
+
+    if (numOfRows + count > rowsCapacity) {
+      blockDataEnsureCapacity(pBlock, numOfRows + count);
+    }
+    // add row for each task
+    for (int32_t i = 0; i < sz; i++) {
+      SArray *pLevel = taosArrayGetP(pStream->tasks, i);
+      int32_t levelCnt = taosArrayGetSize(pLevel);
+      for (int32_t j = 0; j < levelCnt; j++) {
+        SStreamTask *pTask = taosArrayGetP(pLevel, j);
+
+        SColumnInfoData *pColInfo;
+        int32_t          cols = 0;
+
+        // stream name
+        char streamName[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
+        STR_WITH_MAXSIZE_TO_VARSTR(streamName, mndGetDbStr(pStream->name), sizeof(streamName));
+        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
+        colDataAppend(pColInfo, numOfRows, (const char *)streamName, false);
+
+        // task id
+        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
+        colDataAppend(pColInfo, numOfRows, (const char *)&pTask->taskId, false);
+
+        // node type
+        char nodeType[20 + VARSTR_HEADER_SIZE] = {0};
+        varDataSetLen(nodeType, 5);
+        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
+        if (pTask->nodeId > 0) {
+          memcpy(varDataVal(nodeType), "vnode", 5);
+        } else {
+          memcpy(varDataVal(nodeType), "snode", 5);
+        }
+        colDataAppend(pColInfo, numOfRows, nodeType, false);
+
+        // node id
+        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
+        int32_t nodeId = TMAX(pTask->nodeId, 0);
+        colDataAppend(pColInfo, numOfRows, (const char *)&nodeId, false);
+
+        // level
+        char level[20 + VARSTR_HEADER_SIZE] = {0};
+        if (pTask->taskLevel == TASK_LEVEL__SOURCE) {
+          memcpy(varDataVal(level), "source", 6);
+          varDataSetLen(level, 6);
+        } else if (pTask->taskLevel == TASK_LEVEL__AGG) {
+          memcpy(varDataVal(level), "agg", 3);
+          varDataSetLen(level, 3);
+        } else if (pTask->taskLevel == TASK_LEVEL__SINK) {
+          memcpy(varDataVal(level), "sink", 4);
+          varDataSetLen(level, 4);
+        } else if (pTask->taskLevel == TASK_LEVEL__SINK) {
+        }
+        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
+        colDataAppend(pColInfo, numOfRows, (const char *)&level, false);
+
+        // status
+        char status[20 + VARSTR_HEADER_SIZE] = {0};
+        char status2[20] = {0};
+        strcpy(status, "normal");
+        STR_WITH_MAXSIZE_TO_VARSTR(status, status2, sizeof(status));
+        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
+        colDataAppend(pColInfo, numOfRows, (const char *)&status, false);
+
+        numOfRows++;
+      }
+    }
+
+    // unlock
+    taosRUnLockLatch(&pStream->lock);
+
+    sdbRelease(pSdb, pStream);
+  }
+
+  pShow->numOfRows += numOfRows;
+  return numOfRows;
+}
+
+static void mndCancelGetNextStreamTask(SMnode *pMnode, void *pIter) {
+  SSdb *pSdb = pMnode->pSdb;
+  sdbCancelFetch(pSdb, pIter);
+}
diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index ba9d68ee7f..c6e2842c32 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -108,8 +108,8 @@ static FORCE_INLINE int64_t tsdbLogicToFileSize(int64_t lSize, int32_t szPage) {
 #define TSDBROW_KEY(ROW)                      ((TSDBKEY){.version = TSDBROW_VERSION(ROW), .ts = TSDBROW_TS(ROW)})
 #define tsdbRowFromTSRow(VERSION, TSROW)      ((TSDBROW){.type = 0, .version = (VERSION), .pTSRow = (TSROW)})
 #define tsdbRowFromBlockData(BLOCKDATA, IROW) ((TSDBROW){.type = 1, .pBlockData = (BLOCKDATA), .iRow = (IROW)})
-void    tsdbRowGetColVal(TSDBROW *pRow, STSchema *pTSchema, int32_t iCol, SColVal *pColVal);
-int32_t tPutTSDBRow(uint8_t *p, TSDBROW *pRow);
+void tsdbRowGetColVal(TSDBROW *pRow, STSchema *pTSchema, int32_t iCol, SColVal *pColVal);
+// int32_t tPutTSDBRow(uint8_t *p, TSDBROW *pRow);
 int32_t tsdbRowCmprFn(const void *p1, const void *p2);
 // SRowIter
 void     tRowIterInit(SRowIter *pIter, TSDBROW *pRow, STSchema *pTSchema);
@@ -333,6 +333,8 @@ struct SVersionRange {
 typedef struct SMemSkipListNode SMemSkipListNode;
 struct SMemSkipListNode {
   int8_t            level;
+  int64_t           version;
+  STSRow           *pTSRow;
   SMemSkipListNode *forwards[0];
 };
 typedef struct SMemSkipList {
@@ -772,14 +774,6 @@ static FORCE_INLINE int32_t tsdbKeyCmprFn(const void *p1, const void *p2) {
 
 #define SL_NODE_FORWARD(n, l)  ((n)->forwards[l])
 #define SL_NODE_BACKWARD(n, l) ((n)->forwards[(n)->level + (l)])
-#define SL_NODE_DATA(n)        (&SL_NODE_BACKWARD(n, (n)->level))
-
-static FORCE_INLINE int32_t tGetTSDBRow(uint8_t *p, TSDBROW *pRow) {
-  int32_t n = tGetI64(p, &pRow->version);
-  pRow->pTSRow = (STSRow *)(p + n);
-  n += pRow->pTSRow->len;
-  return n;
-}
 
 static FORCE_INLINE TSDBROW *tsdbTbDataIterGet(STbDataIter *pIter) {
   if (pIter == NULL) return NULL;
@@ -798,8 +792,9 @@ static FORCE_INLINE TSDBROW *tsdbTbDataIterGet(STbDataIter *pIter) {
     }
   }
 
-  tGetTSDBRow((uint8_t *)SL_NODE_DATA(pIter->pNode), &pIter->row);
   pIter->pRow = &pIter->row;
+  pIter->pRow->version = pIter->pNode->version;
+  pIter->pRow->pTSRow = pIter->pNode->pTSRow;
 
   return pIter->pRow;
 }
diff --git a/source/dnode/vnode/src/tsdb/tsdbMemTable.c b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
index 654afe1b6a..ddf2949607 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMemTable.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMemTable.c
@@ -18,10 +18,10 @@
 #define MEM_MIN_HASH 1024
 #define SL_MAX_LEVEL 5
 
-#define SL_NODE_SIZE(l)        (sizeof(SMemSkipListNode) + sizeof(SMemSkipListNode *) * (l)*2)
+// sizeof(SMemSkipListNode) + sizeof(SMemSkipListNode *) * (l) * 2
+#define SL_NODE_SIZE(l)        (sizeof(SMemSkipListNode) + ((l) << 4))
 #define SL_NODE_FORWARD(n, l)  ((n)->forwards[l])
 #define SL_NODE_BACKWARD(n, l) ((n)->forwards[(n)->level + (l)])
-#define SL_NODE_DATA(n)        (&SL_NODE_BACKWARD(n, (n)->level))
 
 #define SL_MOVE_BACKWARD 0x1
 #define SL_MOVE_FROM_POS 0x2
@@ -263,30 +263,27 @@ void tsdbTbDataIterOpen(STbData *pTbData, TSDBKEY *pFrom, int8_t backward, STbDa
 }
 
 bool tsdbTbDataIterNext(STbDataIter *pIter) {
-  SMemSkipListNode *pHead = pIter->pTbData->sl.pHead;
-  SMemSkipListNode *pTail = pIter->pTbData->sl.pTail;
-
   pIter->pRow = NULL;
   if (pIter->backward) {
-    ASSERT(pIter->pNode != pTail);
+    ASSERT(pIter->pNode != pIter->pTbData->sl.pTail);
 
-    if (pIter->pNode == pHead) {
+    if (pIter->pNode == pIter->pTbData->sl.pHead) {
       return false;
     }
 
     pIter->pNode = SL_NODE_BACKWARD(pIter->pNode, 0);
-    if (pIter->pNode == pHead) {
+    if (pIter->pNode == pIter->pTbData->sl.pHead) {
       return false;
     }
   } else {
-    ASSERT(pIter->pNode != pHead);
+    ASSERT(pIter->pNode != pIter->pTbData->sl.pHead);
 
-    if (pIter->pNode == pTail) {
+    if (pIter->pNode == pIter->pTbData->sl.pTail) {
       return false;
     }
 
     pIter->pNode = SL_NODE_FORWARD(pIter->pNode, 0);
-    if (pIter->pNode == pTail) {
+    if (pIter->pNode == pIter->pTbData->sl.pTail) {
       return false;
     }
   }
@@ -394,7 +391,7 @@ _err:
 static void tbDataMovePosTo(STbData *pTbData, SMemSkipListNode **pos, TSDBKEY *pKey, int32_t flags) {
   SMemSkipListNode *px;
   SMemSkipListNode *pn;
-  TSDBKEY          *pTKey;
+  TSDBKEY           tKey = {0};
   int32_t           backward = flags & SL_MOVE_BACKWARD;
   int32_t           fromPos = flags & SL_MOVE_FROM_POS;
 
@@ -413,9 +410,10 @@ static void tbDataMovePosTo(STbData *pTbData, SMemSkipListNode **pos, TSDBKEY *p
       for (int8_t iLevel = pTbData->sl.level - 1; iLevel >= 0; iLevel--) {
         pn = SL_NODE_BACKWARD(px, iLevel);
         while (pn != pTbData->sl.pHead) {
-          pTKey = (TSDBKEY *)SL_NODE_DATA(pn);
+          tKey.version = pn->version;
+          tKey.ts = pn->pTSRow->ts;
 
-          int32_t c = tsdbKeyCmprFn(pTKey, pKey);
+          int32_t c = tsdbKeyCmprFn(&tKey, pKey);
           if (c <= 0) {
             break;
           } else {
@@ -442,7 +440,10 @@ static void tbDataMovePosTo(STbData *pTbData, SMemSkipListNode **pos, TSDBKEY *p
       for (int8_t iLevel = pTbData->sl.level - 1; iLevel >= 0; iLevel--) {
         pn = SL_NODE_FORWARD(px, iLevel);
         while (pn != pTbData->sl.pTail) {
-          int32_t c = tsdbKeyCmprFn(SL_NODE_DATA(pn), pKey);
+          tKey.version = pn->version;
+          tKey.ts = pn->pTSRow->ts;
+
+          int32_t c = tsdbKeyCmprFn(&tKey, pKey);
           if (c >= 0) {
             break;
           } else {
@@ -467,8 +468,8 @@ static FORCE_INLINE int8_t tsdbMemSkipListRandLevel(SMemSkipList *pSl) {
 
   return level;
 }
-static int32_t tbDataDoPut(SMemTable *pMemTable, STbData *pTbData, SMemSkipListNode **pos, TSDBROW *pRow,
-                           int8_t forward) {
+static int32_t tbDataDoPut(SMemTable *pMemTable, STbData *pTbData, SMemSkipListNode **pos, int64_t version,
+                           STSRow *pRow, int8_t forward) {
   int32_t           code = 0;
   int8_t            level;
   SMemSkipListNode *pNode;
@@ -477,13 +478,19 @@ static int32_t tbDataDoPut(SMemTable *pMemTable, STbData *pTbData, SMemSkipListN
   // node
   level = tsdbMemSkipListRandLevel(&pTbData->sl);
   ASSERT(pPool != NULL);
-  pNode = (SMemSkipListNode *)vnodeBufPoolMalloc(pPool, SL_NODE_SIZE(level) + tPutTSDBRow(NULL, pRow));
+  pNode = (SMemSkipListNode *)vnodeBufPoolMalloc(pPool, SL_NODE_SIZE(level));
   if (pNode == NULL) {
     code = TSDB_CODE_OUT_OF_MEMORY;
     goto _exit;
   }
   pNode->level = level;
-  tPutTSDBRow((uint8_t *)SL_NODE_DATA(pNode), pRow);
+  pNode->version = version;
+  pNode->pTSRow = vnodeBufPoolMalloc(pPool, pRow->len);
+  if (NULL == pNode->pTSRow) {
+    code = TSDB_CODE_OUT_OF_MEMORY;
+    goto _exit;
+  }
+  memcpy(pNode->pTSRow, pRow, pRow->len);
 
   for (int8_t iLevel = level - 1; iLevel >= 0; iLevel--) {
     SMemSkipListNode *pn = pos[iLevel];
@@ -549,7 +556,7 @@ static int32_t tsdbInsertTableDataImpl(SMemTable *pMemTable, STbData *pTbData, i
   key.ts = row.pTSRow->ts;
   nRow++;
   tbDataMovePosTo(pTbData, pos, &key, SL_MOVE_BACKWARD);
-  code = tbDataDoPut(pMemTable, pTbData, pos, &row, 0);
+  code = tbDataDoPut(pMemTable, pTbData, pos, version, row.pTSRow, 0);
   if (code) {
     goto _err;
   }
@@ -570,7 +577,7 @@ static int32_t tsdbInsertTableDataImpl(SMemTable *pMemTable, STbData *pTbData, i
       if (SL_NODE_FORWARD(pos[0], 0) != pTbData->sl.pTail) {
         tbDataMovePosTo(pTbData, pos, &key, SL_MOVE_FROM_POS);
       }
-      code = tbDataDoPut(pMemTable, pTbData, pos, &row, 1);
+      code = tbDataDoPut(pMemTable, pTbData, pos, version, row.pTSRow, 1);
       if (code) {
         goto _err;
       }
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index c157faecb1..af368d33e0 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -3219,7 +3219,7 @@ int32_t doMergeRowsInBuf(SIterInfo* pIter, uint64_t uid, int64_t ts, SArray* pDe
 
 static int32_t doMergeRowsInFileBlockImpl(SBlockData* pBlockData, int32_t rowIndex, int64_t key, SRowMerger* pMerger,
                                           SVersionRange* pVerRange, int32_t step) {
-  while (pBlockData->aTSKEY[rowIndex] == key && rowIndex < pBlockData->nRow && rowIndex >= 0) {
+  while (rowIndex < pBlockData->nRow && rowIndex >= 0 && pBlockData->aTSKEY[rowIndex] == key) {
     if (pBlockData->aVersion[rowIndex] > pVerRange->maxVer || pBlockData->aVersion[rowIndex] < pVerRange->minVer) {
       rowIndex += step;
       continue;
diff --git a/source/dnode/vnode/src/tsdb/tsdbUtil.c b/source/dnode/vnode/src/tsdb/tsdbUtil.c
index 755a551e20..0aa2c6ab83 100644
--- a/source/dnode/vnode/src/tsdb/tsdbUtil.c
+++ b/source/dnode/vnode/src/tsdb/tsdbUtil.c
@@ -565,15 +565,15 @@ void tsdbRowGetColVal(TSDBROW *pRow, STSchema *pTSchema, int32_t iCol, SColVal *
   }
 }
 
-int32_t tPutTSDBRow(uint8_t *p, TSDBROW *pRow) {
-  int32_t n = 0;
+// int32_t tPutTSDBRow(uint8_t *p, TSDBROW *pRow) {
+//   int32_t n = 0;
 
-  n += tPutI64(p, pRow->version);
-  if (p) memcpy(p + n, pRow->pTSRow, pRow->pTSRow->len);
-  n += pRow->pTSRow->len;
+//   n += tPutI64(p, pRow->version);
+//   if (p) memcpy(p + n, pRow->pTSRow, pRow->pTSRow->len);
+//   n += pRow->pTSRow->len;
 
-  return n;
-}
+//   return n;
+// }
 
 int32_t tsdbRowCmprFn(const void *p1, const void *p2) {
   return tsdbKeyCmprFn(&TSDBROW_KEY((TSDBROW *)p1), &TSDBROW_KEY((TSDBROW *)p2));
@@ -1084,7 +1084,7 @@ static int32_t tBlockDataAppendTPRow(SBlockData *pBlockData, STSRow *pRow, STSch
           cv.flag = CV_FLAG_VALUE;
 
           if (IS_VAR_DATA_TYPE(pTColumn->type)) {
-            void *pData = (char*)pRow + *(int32_t *)(pRow->data + pTColumn->offset - sizeof(TSKEY));
+            void *pData = (char *)pRow + *(int32_t *)(pRow->data + pTColumn->offset - sizeof(TSKEY));
             cv.value.nData = varDataLen(pData);
             cv.value.pData = varDataVal(pData);
           } else {
@@ -1106,7 +1106,7 @@ static int32_t tBlockDataAppendTPRow(SBlockData *pBlockData, STSRow *pRow, STSch
         cv.flag = CV_FLAG_VALUE;
 
         if (IS_VAR_DATA_TYPE(pTColumn->type)) {
-          void *pData = (char*)pRow + *(int32_t *)(pRow->data + pTColumn->offset - sizeof(TSKEY));
+          void *pData = (char *)pRow + *(int32_t *)(pRow->data + pTColumn->offset - sizeof(TSKEY));
           cv.value.nData = varDataLen(pData);
           cv.value.pData = varDataVal(pData);
         } else {
@@ -1151,7 +1151,7 @@ static int32_t tBlockDataAppendKVRow(SBlockData *pBlockData, STSRow *pRow, STSch
       ASSERT(pTColumn->type == pColData->type);
 
       SColVal    cv = {.cid = pTColumn->colId, .type = pTColumn->type};
-      TDRowValT  vt = TD_VTYPE_NONE; // default is NONE
+      TDRowValT  vt = TD_VTYPE_NONE;  // default is NONE
       SKvRowIdx *pKvIdx = NULL;
 
       while (kvIter < nKvCols) {
diff --git a/source/libs/executor/src/tfill.c b/source/libs/executor/src/tfill.c
index ddd948a6dd..c41376b2dc 100644
--- a/source/libs/executor/src/tfill.c
+++ b/source/libs/executor/src/tfill.c
@@ -513,6 +513,22 @@ void* taosDestroyFillInfo(SFillInfo* pFillInfo) {
   //    taosMemoryFreeClear(pFillInfo->pTags[i].tagVal);
   //  }
 
+  // free pFillCol
+  if (pFillInfo->pFillCol) {
+    for (int32_t i = 0; i < pFillInfo->numOfCols; i++) {
+      SFillColInfo* pCol = &pFillInfo->pFillCol[i];
+      if (!pCol->notFillCol) {
+        if (pCol->fillVal.nType == TSDB_DATA_TYPE_VARBINARY || pCol->fillVal.nType == TSDB_DATA_TYPE_VARCHAR ||
+            pCol->fillVal.nType == TSDB_DATA_TYPE_NCHAR || pCol->fillVal.nType == TSDB_DATA_TYPE_JSON) {
+          if (pCol->fillVal.pz) {
+            taosMemoryFree(pCol->fillVal.pz);
+            pCol->fillVal.pz = NULL;
+          }
+        }
+      }
+    }
+  }
+
   taosMemoryFreeClear(pFillInfo->pTags);
   taosMemoryFreeClear(pFillInfo->pFillCol);
   taosMemoryFreeClear(pFillInfo);
diff --git a/source/libs/executor/src/tsimplehash.c b/source/libs/executor/src/tsimplehash.c
index a5168d24ba..9fbe94200c 100644
--- a/source/libs/executor/src/tsimplehash.c
+++ b/source/libs/executor/src/tsimplehash.c
@@ -189,7 +189,7 @@ int32_t tSimpleHashPut(SSHashObj *pHashObj, const void *key, size_t keyLen, cons
   }
 
   while (pNode) {
-    if ((*(pHashObj->equalFp))(GET_SHASH_NODE_KEY(pNode, pNode->dataLen), key, keyLen) == 0) {
+    if ((keyLen == pNode->keyLen) && (*(pHashObj->equalFp))(GET_SHASH_NODE_KEY(pNode, pNode->dataLen), key, keyLen) == 0) {
       break;
     }
     pNode = pNode->next;
@@ -213,10 +213,12 @@ int32_t tSimpleHashPut(SSHashObj *pHashObj, const void *key, size_t keyLen, cons
 static FORCE_INLINE SHNode *doSearchInEntryList(SSHashObj *pHashObj, const void *key, size_t keyLen, int32_t index) {
   SHNode *pNode = pHashObj->hashList[index];
   while (pNode) {
-    if ((*(pHashObj->equalFp))(GET_SHASH_NODE_KEY(pNode, pNode->dataLen), key, keyLen) == 0) {
+    const char* p = GET_SHASH_NODE_KEY(pNode, pNode->dataLen);
+    ASSERT(keyLen > 0);
+
+    if (pNode->keyLen == keyLen && ((*(pHashObj->equalFp))(p, key, keyLen) == 0)) {
       break;
     }
-
     pNode = pNode->next;
   }
 
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index d3f03e8e9c..8249a8f6b1 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -475,7 +475,7 @@ static int32_t translateNowToday(SFunctionNode* pFunc, char* pErrBuf, int32_t le
 
   // add database precision as param
   uint8_t dbPrec = pFunc->node.resType.precision;
-  int32_t code   = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
+  int32_t code = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
   if (code != TSDB_CODE_SUCCESS) {
     return code;
   }
@@ -1506,7 +1506,7 @@ static int32_t translateIrate(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
 
   // add database precision as param
   uint8_t dbPrec = pFunc->node.resType.precision;
-  int32_t code   = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
+  int32_t code = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
   if (code != TSDB_CODE_SUCCESS) {
     return code;
   }
@@ -1519,7 +1519,7 @@ static int32_t translateInterp(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
   int32_t numOfParams = LIST_LENGTH(pFunc->pParameterList);
   uint8_t dbPrec = pFunc->node.resType.precision;
 
-  //if (1 != numOfParams && 3 != numOfParams && 4 != numOfParams) {
+  // if (1 != numOfParams && 3 != numOfParams && 4 != numOfParams) {
   if (1 != numOfParams) {
     return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
   }
@@ -1835,7 +1835,7 @@ static int32_t translateCast(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
 
   // add database precision as param
   uint8_t dbPrec = pFunc->node.resType.precision;
-  int32_t code   = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
+  int32_t code = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
   if (code != TSDB_CODE_SUCCESS) {
     return code;
   }
@@ -1894,7 +1894,7 @@ static int32_t translateToUnixtimestamp(SFunctionNode* pFunc, char* pErrBuf, int
 
   // add database precision as param
   uint8_t dbPrec = pFunc->node.resType.precision;
-  int32_t code   = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
+  int32_t code = addDbPrecisonParam(&pFunc->pParameterList, dbPrec);
   if (code != TSDB_CODE_SUCCESS) {
     return code;
   }
@@ -2474,7 +2474,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
   {
     .name = "first",
     .type = FUNCTION_TYPE_FIRST,
-    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC,
+    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC | FUNC_MGT_KEEP_ORDER_FUNC,
     .translateFunc = translateFirstLast,
     .dynDataRequiredFunc = firstDynDataReq,
     .getEnvFunc   = getFirstLastFuncEnv,
@@ -2512,7 +2512,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
   {
     .name = "last",
     .type = FUNCTION_TYPE_LAST,
-    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC,
+    .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SELECT_FUNC | FUNC_MGT_MULTI_RES_FUNC | FUNC_MGT_IMPLICIT_TS_FUNC | FUNC_MGT_KEEP_ORDER_FUNC,
     .translateFunc = translateFirstLast,
     .dynDataRequiredFunc = lastDynDataReq,
     .getEnvFunc   = getFirstLastFuncEnv,
diff --git a/source/libs/nodes/src/nodesUtilFuncs.c b/source/libs/nodes/src/nodesUtilFuncs.c
index 39d17153d0..cc1bae6a3c 100644
--- a/source/libs/nodes/src/nodesUtilFuncs.c
+++ b/source/libs/nodes/src/nodesUtilFuncs.c
@@ -622,7 +622,7 @@ void nodesDestroyNode(SNode* pNode) {
   }
 
   switch (nodeType(pNode)) {
-    case QUERY_NODE_COLUMN:  // pProjectRef is weak reference, no need to release
+    case QUERY_NODE_COLUMN:
       destroyExprNode((SExprNode*)pNode);
       break;
     case QUERY_NODE_VALUE: {
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index e64a370e15..8de130bbb5 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -744,7 +744,8 @@ static bool isPrimaryKeyImpl(SNode* pExpr) {
     return (PRIMARYKEY_TIMESTAMP_COL_ID == ((SColumnNode*)pExpr)->colId);
   } else if (QUERY_NODE_FUNCTION == nodeType(pExpr)) {
     SFunctionNode* pFunc = (SFunctionNode*)pExpr;
-    if (FUNCTION_TYPE_SELECT_VALUE == pFunc->funcType) {
+    if (FUNCTION_TYPE_SELECT_VALUE == pFunc->funcType || FUNCTION_TYPE_FIRST == pFunc->funcType ||
+        FUNCTION_TYPE_LAST == pFunc->funcType) {
       return isPrimaryKeyImpl(nodesListGetNode(pFunc->pParameterList, 0));
     } else if (FUNCTION_TYPE_WSTART == pFunc->funcType || FUNCTION_TYPE_WEND == pFunc->funcType) {
       return true;
@@ -787,7 +788,6 @@ static void setColumnInfoBySchema(const SRealTableNode* pTable, const SSchema* p
 static void setColumnInfoByExpr(STempTableNode* pTable, SExprNode* pExpr, SColumnNode** pColRef) {
   SColumnNode* pCol = *pColRef;
 
-  // pCol->pProjectRef = (SNode*)pExpr;
   if (NULL == pExpr->pAssociation) {
     pExpr->pAssociation = taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES);
   }
@@ -2932,8 +2932,8 @@ static int32_t checkFill(STranslateContext* pCxt, SFillNode* pFill, SValueNode*
     return TSDB_CODE_SUCCESS;
   }
 
-  if (TSWINDOW_IS_EQUAL(pFill->timeRange, TSWINDOW_INITIALIZER) ||
-      TSWINDOW_IS_EQUAL(pFill->timeRange, TSWINDOW_DESC_INITIALIZER)) {
+  if (!pCxt->createStream && (TSWINDOW_IS_EQUAL(pFill->timeRange, TSWINDOW_INITIALIZER) ||
+                              TSWINDOW_IS_EQUAL(pFill->timeRange, TSWINDOW_DESC_INITIALIZER))) {
     return generateSyntaxErrMsg(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_FILL_TIME_RANGE);
   }
 
@@ -5268,9 +5268,7 @@ static int32_t checkTopicQuery(STranslateContext* pCxt, SSelectStmt* pSelect) {
 }
 
 static int32_t buildCreateTopicReq(STranslateContext* pCxt, SCreateTopicStmt* pStmt, SCMCreateTopicReq* pReq) {
-  SName name;
-  tNameSetDbName(&name, pCxt->pParseCxt->acctId, pStmt->topicName, strlen(pStmt->topicName));
-  tNameGetFullDbName(&name, pReq->name);
+  snprintf(pReq->name, sizeof(pReq->name), "%d.%s", pCxt->pParseCxt->acctId, pStmt->topicName);
   pReq->igExists = pStmt->ignoreExists;
   pReq->withMeta = pStmt->withMeta;
 
@@ -5280,7 +5278,7 @@ static int32_t buildCreateTopicReq(STranslateContext* pCxt, SCreateTopicStmt* pS
   }
 
   int32_t code = TSDB_CODE_SUCCESS;
-
+  SName   name;
   if ('\0' != pStmt->subSTbName[0]) {
     pReq->subType = TOPIC_SUB_TYPE__TABLE;
     toName(pCxt->pParseCxt->acctId, pStmt->subDbName, pStmt->subSTbName, &name);
@@ -5548,6 +5546,10 @@ static int32_t checkStreamQuery(STranslateContext* pCxt, SSelectStmt* pSelect) {
       crossTableWithUdaf(pSelect)) {
     return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_STREAM_QUERY, "Unsupported stream query");
   }
+  if (NULL != pSelect->pSubtable && TSDB_DATA_TYPE_VARCHAR != ((SExprNode*)pSelect->pSubtable)->resType.type) {
+    return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_STREAM_QUERY,
+                                   "SUBTABLE expression must be of VARCHAR type");
+  }
   return TSDB_CODE_SUCCESS;
 }
 
diff --git a/source/libs/sync/src/syncAppendEntriesReply.c b/source/libs/sync/src/syncAppendEntriesReply.c
index 94c4de3c5e..875204c0a9 100644
--- a/source/libs/sync/src/syncAppendEntriesReply.c
+++ b/source/libs/sync/src/syncAppendEntriesReply.c
@@ -37,43 +37,6 @@
 //    /\ UNCHANGED <<serverVars, candidateVars, logVars, elections>>
 //
 
-// only start once
-static void syncNodeStartSnapshotOnce(SSyncNode* ths, SyncIndex beginIndex, SyncIndex endIndex, SyncTerm lastApplyTerm,
-                                      SyncAppendEntriesReply* pMsg) {
-  if (beginIndex > endIndex) {
-    sNError(ths, "snapshot param error, start:%" PRId64 ", end:%" PRId64, beginIndex, endIndex);
-    return;
-  }
-
-  // get sender
-  SSyncSnapshotSender* pSender = syncNodeGetSnapshotSender(ths, &(pMsg->srcId));
-  ASSERT(pSender != NULL);
-
-  if (snapshotSenderIsStart(pSender)) {
-    sSError(pSender, "snapshot sender already start");
-    return;
-  }
-
-  SSnapshot snapshot = {
-      .data = NULL, .lastApplyIndex = endIndex, .lastApplyTerm = lastApplyTerm, .lastConfigIndex = SYNC_INDEX_INVALID};
-  void*          pReader = NULL;
-  SSnapshotParam readerParam = {.start = beginIndex, .end = endIndex};
-  int32_t        code = ths->pFsm->FpSnapshotStartRead(ths->pFsm, &readerParam, &pReader);
-  ASSERT(code == 0);
-
-#if 0
-  if (pMsg->privateTerm < pSender->privateTerm) {
-    ASSERT(pReader != NULL);
-    snapshotSenderStart(pSender, readerParam, snapshot, pReader);
-
-  } else {
-    if (pReader != NULL) {
-      ths->pFsm->FpSnapshotStopRead(ths->pFsm, pReader);
-    }
-  }
-#endif
-}
-
 int32_t syncNodeOnAppendEntriesReply(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   int32_t                 ret = 0;
   SyncAppendEntriesReply* pMsg = pRpcMsg->pCont;
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 5ceca36aac..e802f60f30 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -385,7 +385,7 @@ bool syncIsReadyForRead(int64_t rid) {
       if (!pSyncNode->pLogStore->syncLogIsEmpty(pSyncNode->pLogStore)) {
         SSyncRaftEntry* pEntry = NULL;
         int32_t         code = pSyncNode->pLogStore->syncLogGetEntry(
-                    pSyncNode->pLogStore, pSyncNode->pLogStore->syncLogLastIndex(pSyncNode->pLogStore), &pEntry);
+            pSyncNode->pLogStore, pSyncNode->pLogStore->syncLogLastIndex(pSyncNode->pLogStore), &pEntry);
         if (code == 0 && pEntry != NULL) {
           if (pEntry->originalRpcType == TDMT_SYNC_NOOP && pEntry->term == pSyncNode->pRaftStore->currentTerm) {
             ready = true;
@@ -1806,7 +1806,7 @@ static void syncNodeEqPingTimer(void* param, void* tmrId) {
     int32_t code = syncBuildTimeout(&rpcMsg, SYNC_TIMEOUT_PING, atomic_load_64(&pNode->pingTimerLogicClock),
                                     pNode->pingTimerMS, pNode);
     if (code != 0) {
-      sNError(pNode, "failed to build ping msg");
+      sError("failed to build ping msg");
       rpcFreeCont(rpcMsg.pCont);
       return;
     }
@@ -1814,7 +1814,7 @@ static void syncNodeEqPingTimer(void* param, void* tmrId) {
     sNTrace(pNode, "enqueue ping msg");
     code = pNode->syncEqMsg(pNode->msgcb, &rpcMsg);
     if (code != 0) {
-      sNError(pNode, "failed to sync enqueue ping msg since %s", terrstr());
+      sError("failed to sync enqueue ping msg since %s", terrstr());
       rpcFreeCont(rpcMsg.pCont);
       return;
     }
@@ -1839,7 +1839,7 @@ static void syncNodeEqElectTimer(void* param, void* tmrId) {
   int32_t code = syncBuildTimeout(&rpcMsg, SYNC_TIMEOUT_ELECTION, pElectTimer->logicClock, pNode->electTimerMS, pNode);
 
   if (code != 0) {
-    sNError(pNode, "failed to build elect msg");
+    sError("failed to build elect msg");
     taosMemoryFree(pElectTimer);
     return;
   }
@@ -1849,7 +1849,7 @@ static void syncNodeEqElectTimer(void* param, void* tmrId) {
 
   code = pNode->syncEqMsg(pNode->msgcb, &rpcMsg);
   if (code != 0) {
-    sNError(pNode, "failed to sync enqueue elect msg since %s", terrstr());
+    sError("failed to sync enqueue elect msg since %s", terrstr());
     rpcFreeCont(rpcMsg.pCont);
     taosMemoryFree(pElectTimer);
     return;
@@ -1879,14 +1879,14 @@ static void syncNodeEqHeartbeatTimer(void* param, void* tmrId) {
                                       pNode->heartbeatTimerMS, pNode);
 
       if (code != 0) {
-        sNError(pNode, "failed to build heartbeat msg");
+        sError("failed to build heartbeat msg");
         return;
       }
 
       sNTrace(pNode, "enqueue heartbeat timer");
       code = pNode->syncEqMsg(pNode->msgcb, &rpcMsg);
       if (code != 0) {
-        sNError(pNode, "failed to enqueue heartbeat msg since %s", terrstr());
+        sError("failed to enqueue heartbeat msg since %s", terrstr());
         rpcFreeCont(rpcMsg.pCont);
         return;
       }
@@ -1971,7 +1971,7 @@ static int32_t syncNodeEqNoop(SSyncNode* pNode) {
   sNTrace(pNode, "propose msg, type:noop");
   code = (*pNode->syncEqMsg)(pNode->msgcb, &rpcMsg);
   if (code != 0) {
-    sNError(pNode, "failed to propose noop msg while enqueue since %s", terrstr());
+    sError("failed to propose noop msg while enqueue since %s", terrstr());
   }
 
   return code;
@@ -2005,7 +2005,7 @@ static int32_t syncNodeAppendNoop(SSyncNode* ths) {
   if (ths->state == TAOS_SYNC_STATE_LEADER) {
     int32_t code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pEntry);
     if (code != 0) {
-      sNError(ths, "append noop error");
+      sError("append noop error");
       return -1;
     }
   }
@@ -2109,7 +2109,7 @@ int32_t syncNodeOnLocalCmd(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
     syncNodeFollowerCommit(ths, pMsg->fcIndex);
 
   } else {
-    sNError(ths, "error local cmd");
+    sError("error local cmd");
   }
 
   return 0;
diff --git a/source/libs/sync/src/syncRaftLog.c b/source/libs/sync/src/syncRaftLog.c
index 7e4b18ab88..b00ba3918c 100644
--- a/source/libs/sync/src/syncRaftLog.c
+++ b/source/libs/sync/src/syncRaftLog.c
@@ -197,7 +197,12 @@ static int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncRaftEntr
   syncMeta.isWeek = pEntry->isWeak;
   syncMeta.seqNum = pEntry->seqNum;
   syncMeta.term = pEntry->term;
+
+  int64_t tsWriteBegin = taosGetTimestampNs();
   index = walAppendLog(pWal, pEntry->originalRpcType, syncMeta, pEntry->data, pEntry->dataLen);
+  int64_t tsWriteEnd = taosGetTimestampNs();
+  int64_t tsElapsed = tsWriteEnd - tsWriteBegin;
+
   if (index < 0) {
     int32_t     err = terrno;
     const char* errStr = tstrerror(err);
@@ -210,8 +215,8 @@ static int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncRaftEntr
   }
   pEntry->index = index;
 
-  sNTrace(pData->pSyncNode, "write index:%" PRId64 ", type:%s, origin type:%s", pEntry->index,
-          TMSG_INFO(pEntry->msgType), TMSG_INFO(pEntry->originalRpcType));
+  sNTrace(pData->pSyncNode, "write index:%" PRId64 ", type:%s, origin type:%s, elapsed:%" PRId64, pEntry->index,
+          TMSG_INFO(pEntry->msgType), TMSG_INFO(pEntry->originalRpcType), tsElapsed);
   return 0;
 }
 
@@ -234,9 +239,13 @@ int32_t raftLogGetEntry(struct SSyncLogStore* pLogStore, SyncIndex index, SSyncR
     return -1;
   }
 
+  int64_t ts1 = taosGetTimestampNs();
   taosThreadMutexLock(&(pData->mutex));
 
+  int64_t ts2 = taosGetTimestampNs();
   code = walReadVer(pWalHandle, index);
+  int64_t ts3 = taosGetTimestampNs();
+
   // code = walReadVerCached(pWalHandle, index);
   if (code != 0) {
     int32_t     err = terrno;
@@ -280,6 +289,18 @@ int32_t raftLogGetEntry(struct SSyncLogStore* pLogStore, SyncIndex index, SSyncR
   */
 
   taosThreadMutexUnlock(&(pData->mutex));
+  int64_t ts4 = taosGetTimestampNs();
+
+  int64_t tsElapsed = ts4 - ts1;
+  int64_t tsElapsedLock = ts2 - ts1;
+  int64_t tsElapsedRead = ts3 - ts2;
+  int64_t tsElapsedBuild = ts4 - ts3;
+
+  sNTrace(pData->pSyncNode,
+          "read index:%" PRId64 ", elapsed:%" PRId64 ", elapsed-lock:%" PRId64 ", elapsed-read:%" PRId64
+          ", elapsed-build:%" PRId64,
+          index, tsElapsed, tsElapsedLock, tsElapsedRead, tsElapsedBuild);
+
   return code;
 }
 
diff --git a/source/libs/sync/src/syncReplication.c b/source/libs/sync/src/syncReplication.c
index f09bac2139..6a7a2c18c1 100644
--- a/source/libs/sync/src/syncReplication.c
+++ b/source/libs/sync/src/syncReplication.c
@@ -72,7 +72,7 @@ int32_t syncNodeReplicateOne(SSyncNode* pSyncNode, SRaftId* pDestId, bool snapsh
   SRpcMsg            rpcMsg = {0};
   SyncAppendEntries* pMsg = NULL;
 
-  SSyncRaftEntry* pEntry;
+  SSyncRaftEntry* pEntry = NULL;
   int32_t         code = pSyncNode->pLogStore->syncLogGetEntry(pSyncNode->pLogStore, nextIndex, &pEntry);
 
   if (code == 0) {
@@ -99,6 +99,8 @@ int32_t syncNodeReplicateOne(SSyncNode* pSyncNode, SRaftId* pDestId, bool snapsh
     }
   }
 
+  syncEntryDestory(pEntry);
+
   // prepare msg
   ASSERT(pMsg != NULL);
   pMsg->srcId = pSyncNode->myRaftId;
@@ -140,9 +142,10 @@ int32_t syncNodeReplicate(SSyncNode* pSyncNode) {
 int32_t syncNodeSendAppendEntries(SSyncNode* pSyncNode, const SRaftId* destRaftId, SRpcMsg* pRpcMsg) {
   int32_t            ret = 0;
   SyncAppendEntries* pMsg = pRpcMsg->pCont;
-
-  syncLogSendAppendEntries(pSyncNode, pMsg, "");
-  syncNodeSendMsgById(destRaftId, pSyncNode, pRpcMsg);
+  if (pMsg == NULL) {
+    sError("vgId:%d, sync-append-entries msg is NULL", pSyncNode->vgId);
+    return 0;
+  }
 
   SPeerState* pState = syncNodeGetPeerState(pSyncNode, destRaftId);
   if (pState == NULL) {
@@ -150,8 +153,19 @@ int32_t syncNodeSendAppendEntries(SSyncNode* pSyncNode, const SRaftId* destRaftI
     return 0;
   }
 
+  // save index, otherwise pMsg will be free by rpc
+  SyncIndex saveLastSendIndex = pState->lastSendIndex;
+  bool      update = false;
   if (pMsg->dataLen > 0) {
-    pState->lastSendIndex = pMsg->prevLogIndex + 1;
+    saveLastSendIndex = pMsg->prevLogIndex + 1;
+    update = true;
+  }
+
+  syncLogSendAppendEntries(pSyncNode, pMsg, "");
+  syncNodeSendMsgById(destRaftId, pSyncNode, pRpcMsg);
+
+  if (update) {
+    pState->lastSendIndex = saveLastSendIndex;
     pState->lastSendTime = taosGetTimestampMs();
   }
 
diff --git a/source/libs/sync/src/syncUtil.c b/source/libs/sync/src/syncUtil.c
index a575de7e56..b9a271ab9d 100644
--- a/source/libs/sync/src/syncUtil.c
+++ b/source/libs/sync/src/syncUtil.c
@@ -194,6 +194,7 @@ static void syncPeerState2Str(SSyncNode* pSyncNode, char* buf, int32_t bufLen) {
 
 void syncPrintNodeLog(const char* flags, ELogLevel level, int32_t dflag, SSyncNode* pNode, const char* format, ...) {
   if (pNode == NULL || pNode->pRaftCfg != NULL && pNode->pRaftStore == NULL || pNode->pLogStore == NULL) return;
+  int64_t currentTerm = pNode->pRaftStore->currentTerm;
 
   // save error code, otherwise it will be overwritten
   int32_t errCode = terrno;
@@ -235,8 +236,8 @@ void syncPrintNodeLog(const char* flags, ELogLevel level, int32_t dflag, SSyncNo
                ", tm:%" PRIu64 ", cmt:%" PRId64 ", fst:%" PRId64 ", lst:%" PRId64 ", min:%" PRId64 ", snap:%" PRId64
                ", snap-tm:%" PRIu64 ", sby:%d, aq:%d, bch:%d, r-num:%d, lcfg:%" PRId64
                ", chging:%d, rsto:%d, dquorum:%d, elt:%" PRId64 ", hb:%" PRId64 ", %s, %s",
-               pNode->vgId, syncStr(pNode->state), eventLog, pNode->pRaftStore->currentTerm, pNode->commitIndex,
-               logBeginIndex, logLastIndex, pNode->minMatchIndex, snapshot.lastApplyIndex, snapshot.lastApplyTerm,
+               pNode->vgId, syncStr(pNode->state), eventLog, currentTerm, pNode->commitIndex, logBeginIndex,
+               logLastIndex, pNode->minMatchIndex, snapshot.lastApplyIndex, snapshot.lastApplyTerm,
                pNode->pRaftCfg->isStandBy, aqItems, pNode->pRaftCfg->batchSize, pNode->replicaNum,
                pNode->pRaftCfg->lastConfigIndex, pNode->changing, pNode->restoreFinish, quorum,
                pNode->electTimerLogicClock, pNode->heartbeatTimerLogicClockUser, peerStr, cfgStr);
@@ -374,9 +375,9 @@ void syncLogRecvAppendEntriesReply(SSyncNode* pSyncNode, const SyncAppendEntries
   syncUtilU642Addr(pMsg->srcId.addr, host, sizeof(host), &port);
 
   sNTrace(pSyncNode,
-          "recv sync-append-entries-reply from %s:%d {term:%" PRId64 ", pterm:%" PRId64 ", success:%d, match:%" PRId64
-          "}, %s",
-          host, port, pMsg->term, pMsg->privateTerm, pMsg->success, pMsg->matchIndex, s);
+          "recv sync-append-entries-reply from %s:%d {term:%" PRId64 ", pterm:%" PRId64
+          ", success:%d, lsend-index:%" PRId64 ", match:%" PRId64 "}, %s",
+          host, port, pMsg->term, pMsg->privateTerm, pMsg->success, pMsg->lastSendIndex, pMsg->matchIndex, s);
 }
 
 void syncLogSendHeartbeat(SSyncNode* pSyncNode, const SyncHeartbeat* pMsg, const char* s) {
@@ -511,8 +512,8 @@ void syncLogSendAppendEntries(SSyncNode* pSyncNode, const SyncAppendEntries* pMs
   syncUtilU642Addr(pMsg->destId.addr, host, sizeof(host), &port);
   sNTrace(pSyncNode,
           "send sync-append-entries to %s:%d, {term:%" PRId64 ", pre-index:%" PRId64 ", pre-term:%" PRId64
-          ", pterm:%" PRId64 ", cmt:%" PRId64 ", datalen:%d}, %s",
-          host, port, pMsg->term, pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->privateTerm, pMsg->commitIndex,
+          ", lsend-index:%" PRId64 ", cmt:%" PRId64 ", datalen:%d}, %s",
+          host, port, pMsg->term, pMsg->prevLogIndex, pMsg->prevLogTerm, (pMsg->prevLogIndex + 1), pMsg->commitIndex,
           pMsg->dataLen, s);
 }
 
diff --git a/source/libs/wal/src/walMeta.c b/source/libs/wal/src/walMeta.c
index 1c6e1a2e17..6cac4b6093 100644
--- a/source/libs/wal/src/walMeta.c
+++ b/source/libs/wal/src/walMeta.c
@@ -124,8 +124,8 @@ static FORCE_INLINE int64_t walScanLogGetLastVer(SWal* pWal, int32_t fileIdx) {
       goto _err;
     }
 
-    char* candidate = NULL;
-    char* haystack = buf;
+    char*       candidate = NULL;
+    char*       haystack = buf;
     int64_t     pos = 0;
     SWalCkHead* logContent = NULL;
 
@@ -414,8 +414,10 @@ int walCheckAndRepairMeta(SWal* pWal) {
       }
       ASSERT(pFileInfo->fileSize == 0);
       // remove the empty wal log, and its idx
+      wInfo("vgId:%d, wal remove empty file %s", pWal->cfg.vgId, fnameStr);
       taosRemoveFile(fnameStr);
       walBuildIdxName(pWal, pFileInfo->firstVer, fnameStr);
+      wInfo("vgId:%d, wal remove empty file %s", pWal->cfg.vgId, fnameStr);
       taosRemoveFile(fnameStr);
       // remove its meta entry
       taosArrayRemove(pWal->fileInfoSet, fileIdx);
diff --git a/source/libs/wal/src/walWrite.c b/source/libs/wal/src/walWrite.c
index 7ced5fae39..216dd5fcb1 100644
--- a/source/libs/wal/src/walWrite.c
+++ b/source/libs/wal/src/walWrite.c
@@ -407,6 +407,7 @@ int32_t walRollImpl(SWal *pWal) {
   }
   walBuildLogName(pWal, newFileFirstVer, fnameStr);
   pLogFile = taosOpenFile(fnameStr, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_APPEND);
+  wDebug("vgId:%d, wal create new file for write:%s", pWal->cfg.vgId, fnameStr);
   if (pLogFile == NULL) {
     terrno = TAOS_SYSTEM_ERROR(errno);
     code = -1;
diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index c1fee37610..76a312cd91 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -271,8 +271,11 @@ static int32_t cfgSetTimezone(SConfigItem *pItem, const char *value, ECfgSrcType
            cfgStypeStr(stype), value, terrstr());
     return -1;
   }
-
   pItem->stype = stype;
+
+  // apply new timezone
+  osSetTimezone(value);
+
   return 0;
 }
 
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index 79be05e9fc..0f3c383b9e 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -87,6 +87,7 @@ ELSE ()
     MESSAGE("CURRENT SOURCE DIR ${CMAKE_CURRENT_SOURCE_DIR}")
 
     IF (TD_WINDOWS)
+        MESSAGE("Building taosAdapter on Windows")
         INCLUDE(ExternalProject)
         ExternalProject_Add(taosadapter
             PREFIX        "taosadapter"
@@ -104,14 +105,18 @@ ELSE ()
             COMMAND go build -a -o taosadapter-debug.exe -ldflags "-X github.com/taosdata/taosadapter/v3/version.Version=${taos_version} -X github.com/taosdata/taosadapter/v3/version.CommitID=${taosadapter_commit_sha1}"
 
             INSTALL_COMMAND
-            COMMAND cmake -E time upx taosadapter ||:
-            COMMAND cmake -E copy taosadapter.exe ${CMAKE_BINARY_DIR}/build/bin
+            COMMAND cmake -E echo "Comparessing taosadapter.exe"
+            COMMAND cmake -E time upx taosadapter.exe
+            COMMAND cmake -E echo "Copy taosadapter.exe"
+            COMMAND cmake -E copy taosadapter.exe ${CMAKE_BINARY_DIR}/build/bin/taosadapter.exe
             COMMAND cmake -E make_directory ${CMAKE_BINARY_DIR}/test/cfg/
+            COMMAND cmake -E echo "Copy taosadapter.toml"
             COMMAND cmake -E copy ./example/config/taosadapter.toml ${CMAKE_BINARY_DIR}/test/cfg/
-            COMMAND cmake -E copy ./taosadapter.service ${CMAKE_BINARY_DIR}/test/cfg/
+            COMMAND cmake -E echo "Copy taosadapter-debug.exe"
             COMMAND cmake -E copy taosadapter-debug.exe ${CMAKE_BINARY_DIR}/build/bin
             )
     ELSE (TD_WINDOWS)
+        MESSAGE("Building taosAdapter on non-Windows")
         INCLUDE(ExternalProject)
         ExternalProject_Add(taosadapter
             PREFIX        "taosadapter"
@@ -126,11 +131,15 @@ ELSE ()
             COMMAND CGO_CFLAGS=-I${CMAKE_CURRENT_SOURCE_DIR}/../include/client CGO_LDFLAGS=-L${CMAKE_BINARY_DIR}/build/lib  go build -a -ldflags "-s -w -X github.com/taosdata/taosadapter/v3/version.Version=${taos_version} -X github.com/taosdata/taosadapter/v3/version.CommitID=${taosadapter_commit_sha1}"
             COMMAND CGO_CFLAGS=-I${CMAKE_CURRENT_SOURCE_DIR}/../include/client CGO_LDFLAGS=-L${CMAKE_BINARY_DIR}/build/lib  go build -a -o taosadapter-debug -ldflags "-X github.com/taosdata/taosadapter/v3/version.Version=${taos_version} -X github.com/taosdata/taosadapter/v3/version.CommitID=${taosadapter_commit_sha1}"
             INSTALL_COMMAND
+            COMMAND cmake -E echo "Comparessing taosadapter.exe"
             COMMAND upx taosadapter || :
+            COMMAND cmake -E echo "Copy taosadapter"
             COMMAND cmake -E copy taosadapter ${CMAKE_BINARY_DIR}/build/bin
             COMMAND cmake -E make_directory ${CMAKE_BINARY_DIR}/test/cfg/
+            COMMAND cmake -E echo "Copy taosadapter.toml"
             COMMAND cmake -E copy ./example/config/taosadapter.toml ${CMAKE_BINARY_DIR}/test/cfg/
             COMMAND cmake -E copy ./taosadapter.service ${CMAKE_BINARY_DIR}/test/cfg/
+            COMMAND cmake -E echo "Copy taosadapter-debug"
             COMMAND cmake -E copy taosadapter-debug ${CMAKE_BINARY_DIR}/build/bin
             )
     ENDIF (TD_WINDOWS)