Merge branch 'develop' into test/TD-4652

packaging/check_package.sh

@@ -0,0 +1,245 @@
+#!/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
+
+iplist=""
+serverFqdn=""
+
+# -----------------------Variables definition---------------------
+script_dir="../release"
+# Dynamic directory
+data_dir="/var/lib/taos"
+log_dir="/var/log/taos"
+
+data_link_dir="/usr/local/taos/data"
+log_link_dir="/usr/local/taos/log"
+
+cfg_install_dir="/etc/taos"
+
+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/taos"
+
+# old bin dir
+sbin_dir="/usr/local/taos/bin"
+
+temp_version=""
+fin_result=""
+
+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
+
+# =============================  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:d:" arg
+do
+  case $arg in
+    d)
+      #echo "interactiveFqdn=$OPTARG"
+      script_dir=$( echo $OPTARG )
+      ;;
+    h)
+      echo "Usage: `basename $0` -d scripy_path"
+      exit 0
+      ;;
+    ?) #unknow option
+      echo "unkonw argument"
+      exit 1
+      ;;
+  esac
+done
+
+#echo "verType=${verType} interactiveFqdn=${interactiveFqdn}"
+
+function kill_process() {
+  pid=$(ps -ef | grep "$1" | grep -v "grep" | awk '{print $2}')
+  if [ -n "$pid" ]; then
+    ${csudo} kill -9 $pid   || :
+  fi
+}
+
+function check_file() {
+    #check file whether exists
+    if [ ! -e $1/$2 ];then
+        echo -e "$1/$2 \033[31mnot exists\033[0m!quit"
+        fin_result=$fin_result"\033[31m$temp_version\033[0m test failed!\n"
+        echo -e $fin_result
+        exit 8 
+    fi
+}
+
+function get_package_name() {
+  var=$1
+	if [[ $1 =~ 'aarch' ]];then
+		echo ${var::-21}
+	else
+		echo ${var::-17}
+	fi
+}
+function check_link() {
+    #check Link whether exists or broken
+    if [ -L $1 ] ; then
+        if [ ! -e $1 ] ; then
+            echo -e "$1 \033[31Broken link\033[0m"
+            fin_result=$fin_result"\033[31m$temp_version\033[0m test failed!\n"
+            echo -e $fin_result
+            exit 8 
+        fi
+    else
+        echo -e "$1 \033[31mnot exists\033[0m!quit"
+        fin_result=$fin_result"\033[31m$temp_version\033[0m test failed!\n"
+        echo -e $fin_result
+        exit 8 
+    fi
+}
+
+function check_main_path() {
+    #check install main dir and all sub dir
+    main_dir=("" "cfg" "bin" "connector" "driver" "examples" "include" "init.d")
+    for i in ${main_dir[@]};do
+        check_file ${install_main_dir} $i
+    done
+    if [ "$verMode" == "cluster" ]; then
+        nginx_main_dir=("admin" "conf" "html" "sbin" "logs")
+        for i in ${nginx_main_dir[@]};do
+            check_file ${nginx_dir}  $i
+        done
+    fi
+    echo -e "Check main path:\033[32mOK\033[0m!"
+}
+
+function check_bin_path() {
+    # check install bin dir and all sub dir
+    bin_dir=("taos" "taosd" "taosdemo" "taosdump" "remove.sh" "tarbitrator" "set_core.sh")
+    for i in ${bin_dir[@]};do
+        check_file ${sbin_dir} $i
+    done
+    lbin_dir=("taos" "taosd" "taosdemo" "taosdump" "rmtaos" "tarbitrator" "set_core")
+    for i in ${lbin_dir[@]};do
+        check_link ${bin_link_dir}/$i
+    done
+    if [ "$verMode" == "cluster" ]; then
+        check_file ${nginx_dir}/sbin nginx
+    fi
+    echo -e "Check bin  path:\033[32mOK\033[0m!"
+}
+
+
+function check_lib_path() {
+    # check all links
+    check_link ${lib_link_dir}/libtaos.so
+    check_link ${lib_link_dir}/libtaos.so.1
+
+    if [[ -d ${lib64_link_dir}  ]]; then
+        check_link ${lib64_link_dir}/libtaos.so
+        check_link ${lib64_link_dir}/libtaos.so.1
+    fi
+    echo -e "Check lib  path:\033[32mOK\033[0m!"
+}
+
+
+function check_header_path() {
+	# check all header 
+	header_dir=("taos.h" "taoserror.h")
+    for i in ${header_dir[@]};do
+        check_link ${inc_link_dir}/$i
+    done
+    echo -e "Check bin  path:\033[32mOK\033[0m!"
+}
+
+
+function check_config_dir() {
+	# check all config
+	check_file ${cfg_install_dir} taos.cfg
+	check_file ${install_main_dir}/cfg taos.cfg.org
+	echo -e "Check conf path:\033[32mOK\033[0m!"
+}
+
+function check_log_path() {
+	# check log path
+	check_file ${log_dir}
+	echo -e "Check log  path:\033[32mOK\033[0m!"
+}
+
+function check_data_path() {
+	# check data path
+	check_file ${data_dir} 
+	echo -e "Check data path:\033[32mOK\033[0m!"
+}
+
+function install_TDengine() {
+	cd ${script_dir}
+	tar zxf $1
+  temp_version=$(get_package_name $1)
+	cd $(get_package_name $1)
+  echo -e "\033[32muninstall TDengine && install TDengine...\033[0m"
+	rmtaos >/dev/null 2>&1 || echo 'taosd not installed' && echo -e '\n\n' |./install.sh >/dev/null 2>&1 
+  echo -e "\033[32mTDengine has been installed!\033[0m"
+  echo -e "\033[32mTDengine is starting...\033[0m"
+  kill_process taos && systemctl start taosd && sleep 10
+}
+
+function test_TDengine() {
+    check_main_path
+    check_bin_path
+    check_lib_path
+    check_header_path
+    check_config_dir
+    check_log_path
+    check_data_path
+    result=`taos -s 'create database test ;create table test.tt(ts timestamp ,i int);insert into test.tt values(now,11);select * from test.tt' 2>&1 ||:`
+    if [[ $result =~ "Unable to establish" ]];then
+        echo -e "\033[31mTDengine connect failed\033[0m" 
+        fin_result=$fin_result"\033[31m$temp_version\033[0m test failed!\n"
+        echo -e $fin_result
+        exit 8 
+    fi  
+    echo -e "Check TDengine connect:\033[32mOK\033[0m!"
+    fin_result=$fin_result"\033[32m$temp_version\033[0m test OK!\n"
+} 
+# ## ==============================Main program starts from here============================
+TD_package_name=`ls ${script_dir}/*server*gz |awk -F '/' '{print $NF}' `
+temp=`pwd`
+for i in $TD_package_name;do
+	if [[ $i =~ 'enterprise' ]];then
+		verMode="cluster"
+	else
+		verMode=""
+	fi
+  cd $temp
+	install_TDengine $i
+	test_TDengine
+done
+echo "============================================================"
+echo -e $fin_result

src/balance/src/bnMain.c

@@ -367,6 +367,7 @@ static bool bnMonitorBalance() {
         for (int32_t dest = 0; dest < src; dest++) {
           SDnodeObj *pDestDnode = tsBnDnodes.list[dest];
           if (bnCheckDnodeInVgroup(pDestDnode, pVgroup)) continue;
+          if (taosGetTimestampMs() - pDestDnode->createdTime < 2000) continue;
 
           float destScore = bnTryCalcDnodeScore(pDestDnode, 1);
           if (srcScore + 0.0001 < destScore) continue;

src/client/inc/tscUtil.h

@@ -123,6 +123,8 @@ int32_t tscGetDataBlockFromList(SHashObj* pHashList, int64_t id, int32_t size, i
  */
 bool tscIsPointInterpQuery(SQueryInfo* pQueryInfo);
 bool tscIsTWAQuery(SQueryInfo* pQueryInfo);
+bool tscIsIrateQuery(SQueryInfo* pQueryInfo);
+
 bool tscIsSessionWindowQuery(SQueryInfo* pQueryInfo);
 bool tscIsSecondStageQuery(SQueryInfo* pQueryInfo);
 bool tsIsArithmeticQueryOnAggResult(SQueryInfo* pQueryInfo);

src/client/jni/com_taosdata_jdbc_TSDBJNIConnector.h

@@ -51,10 +51,10 @@ JNIEXPORT jstring JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_getTsCharset
 
 /*
  * Class:     com_taosdata_jdbc_TSDBJNIConnector
- * Method:    getResultTimePrecision
+ * Method:    getResultTimePrecisionImp
- * Signature: (J)J
+ * Signature: (JJ)I
  */
-JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TDDBJNIConnector_getResultTimePrecision
+JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TDDBJNIConnector_getResultTimePrecisionImp
         (JNIEnv *, jobject, jlong, jlong);
 
 /*

src/client/src/TSDBJNIConnector.c

@@ -113,7 +113,7 @@ static void jniGetGlobalMethod(JNIEnv *env) {
   g_rowdataSetFloatFp = (*env)->GetMethodID(env, g_rowdataClass, "setFloat", "(IF)V");
   g_rowdataSetDoubleFp = (*env)->GetMethodID(env, g_rowdataClass, "setDouble", "(ID)V");
   g_rowdataSetStringFp = (*env)->GetMethodID(env, g_rowdataClass, "setString", "(ILjava/lang/String;)V");
-  g_rowdataSetTimestampFp = (*env)->GetMethodID(env, g_rowdataClass, "setTimestamp", "(IJ)V");
+  g_rowdataSetTimestampFp = (*env)->GetMethodID(env, g_rowdataClass, "setTimestamp", "(IJI)V");
   g_rowdataSetByteArrayFp = (*env)->GetMethodID(env, g_rowdataClass, "setByteArray", "(I[B)V");
   (*env)->DeleteLocalRef(env, rowdataClass);
 
@@ -519,9 +519,11 @@ JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_fetchRowImp(JNIEn
                                jniFromNCharToByteArray(env, (char *)row[i], length[i]));
         break;
       }
-      case TSDB_DATA_TYPE_TIMESTAMP:
+      case TSDB_DATA_TYPE_TIMESTAMP: {
-        (*env)->CallVoidMethod(env, rowobj, g_rowdataSetTimestampFp, i, (jlong) * ((int64_t *)row[i]));
+        int precision = taos_result_precision(result);
+        (*env)->CallVoidMethod(env, rowobj, g_rowdataSetTimestampFp, i, (jlong) * ((int64_t *)row[i]), precision);
         break;
+      }
       default:
         break;
     }
@@ -672,7 +674,15 @@ JNIEXPORT jstring JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_getTsCharset(J
   return (*env)->NewStringUTF(env, (const char *)tsCharset);
 }
 
-JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TDDBJNIConnector_getResultTimePrecision(JNIEnv *env, jobject jobj, jlong con,
+/**
+ * Get Result Time Precision
+ * @param env           vm
+ * @param jobj          the TSDBJNIConnector java object
+ * @param con           the c connection pointer
+ * @param res           the TAOS_RES object, i.e. the SSqlObject
+ * @return precision    0:ms 1:us 2:ns
+ */
+JNIEXPORT jint JNICALL Java_com_taosdata_jdbc_TSDBJNIConnector_getResultTimePrecisionImp(JNIEnv *env, jobject jobj, jlong con,
                                                                                       jlong res) {
   TAOS *tscon = (TAOS *)con;
   if (tscon == NULL) {

src/client/src/tscSQLParser.c

@@ -423,18 +423,6 @@ int32_t tscValidateSqlInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         if(code != TSDB_CODE_SUCCESS) {
           return code; 
         }
-
-        if (pInfo->pMiscInfo->tableType == TSDB_SUPER_TABLE) {
-////          code = tscGetTableMeta(pSql, pTableMetaInfo);
-////          if (code != TSDB_CODE_SUCCESS) {
-////            return code;
-////          }
-//
-//          if (!UTIL_TABLE_IS_SUPER_TABLE(pTableMetaInfo)) {
-//            return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg4);
-//          }
-        }
-        
       } else if (pInfo->type == TSDB_SQL_DROP_DNODE) {
         if (pzName->type == TK_STRING) {
           pzName->n = strdequote(pzName->z);
@@ -772,6 +760,11 @@ int32_t tscValidateSqlInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
       pCmd->active = pCmd->pQueryInfo;
       pCmd->command = pCmd->pQueryInfo->command;
 
+      STableMetaInfo* pTableMetaInfo1 = tscGetMetaInfo(pCmd->active, 0);
+      if (pTableMetaInfo1->pTableMeta != NULL) {
+        pSql->res.precision = tscGetTableInfo(pTableMetaInfo1->pTableMeta).precision;
+      }
+
       return TSDB_CODE_SUCCESS;  // do not build query message here
     }
 
@@ -956,8 +949,10 @@ int32_t validateIntervalNode(SSqlObj* pSql, SQueryInfo* pQueryInfo, SSqlNode* pS
 static int32_t validateStateWindowNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SSqlNode* pSqlNode, bool isStable) {
 
   const char* msg1 = "invalid column name";
+  const char* msg2 = "invalid column type";
   const char* msg3 = "not support state_window with group by ";
   const char* msg4 = "function not support for super table query";
+  const char* msg5 = "not support state_window on tag column";
 
   SStrToken *col = &(pSqlNode->windowstateVal.col) ;
   if (col->z == NULL || col->n <= 0) {
@@ -985,8 +980,10 @@ static int32_t validateStateWindowNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SS
   STableMetaInfo *pTableMetaInfo = tscGetMetaInfo(pQueryInfo, index.tableIndex);
   STableMeta* pTableMeta = pTableMetaInfo->pTableMeta;
   int32_t numOfCols = tscGetNumOfColumns(pTableMeta);
-  if (index.columnIndex == TSDB_TBNAME_COLUMN_INDEX || index.columnIndex >= numOfCols) {
+  if (index.columnIndex == TSDB_TBNAME_COLUMN_INDEX) {
     return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg3);
+  } else if (index.columnIndex >= numOfCols) {
+    return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg5);
   }
 
   SGroupbyExpr* pGroupExpr = &pQueryInfo->groupbyExpr;
@@ -995,8 +992,10 @@ static int32_t validateStateWindowNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SS
   }
 
   SSchema* pSchema = tscGetTableColumnSchema(pTableMeta, index.columnIndex);
-  if (pSchema->type == TSDB_DATA_TYPE_TIMESTAMP || pSchema->type == TSDB_DATA_TYPE_FLOAT || pSchema->type == TSDB_DATA_TYPE_DOUBLE) {
+  if (pSchema->type == TSDB_DATA_TYPE_TIMESTAMP || pSchema->type == TSDB_DATA_TYPE_FLOAT 
-    return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg1);
+      || pSchema->type == TSDB_DATA_TYPE_DOUBLE || pSchema->type == TSDB_DATA_TYPE_NCHAR
+      || pSchema->type == TSDB_DATA_TYPE_BINARY) {
+    return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg2);
   }
 
   tscColumnListInsert(pQueryInfo->colList, index.columnIndex, pTableMeta->id.uid, pSchema);
@@ -2022,8 +2021,10 @@ int32_t addProjectionExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, t
 
     if (index.columnIndex == TSDB_TBNAME_COLUMN_INDEX) {
       SSchema colSchema = *tGetTbnameColumnSchema();
-      getColumnName(pItem, colSchema.name, colSchema.name, sizeof(colSchema.name) - 1);
+      char name[TSDB_COL_NAME_LEN] = {0};
+      getColumnName(pItem, name, colSchema.name, sizeof(colSchema.name) - 1);
 
+      tstrncpy(colSchema.name, name, TSDB_COL_NAME_LEN);
       /*SExprInfo* pExpr = */tscAddFuncInSelectClause(pQueryInfo, startPos, TSDB_FUNC_TAGPRJ, &index, &colSchema, TSDB_COL_TAG, getNewResColId(pCmd));
     } else {
       STableMetaInfo* pTableMetaInfo = tscGetMetaInfo(pQueryInfo, index.tableIndex);
@@ -3062,8 +3063,8 @@ void tscRestoreFuncForSTableQuery(SQueryInfo* pQueryInfo) {
 }
 
 bool hasUnsupportFunctionsForSTableQuery(SSqlCmd* pCmd, SQueryInfo* pQueryInfo) {
-  const char* msg1 = "TWA/Diff not allowed to apply to super table directly";
+  const char* msg1 = "TWA/Diff/Derivative/Irate not allowed to apply to super table directly";
-  const char* msg2 = "TWA/Diff only support group by tbname for super table query";
+  const char* msg2 = "TWA/Diff/Derivative/Irate only support group by tbname for super table query";
   const char* msg3 = "function not support for super table query";
 
   // filter sql function not supported by metric query yet.
@@ -3076,7 +3077,7 @@ bool hasUnsupportFunctionsForSTableQuery(SSqlCmd* pCmd, SQueryInfo* pQueryInfo)
     }
   }
 
-  if (tscIsTWAQuery(pQueryInfo) || tscIsDiffDerivQuery(pQueryInfo)) {
+  if (tscIsTWAQuery(pQueryInfo) || tscIsDiffDerivQuery(pQueryInfo) || tscIsIrateQuery(pQueryInfo)) {
     if (pQueryInfo->groupbyExpr.numOfGroupCols == 0) {
       invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg1);
       return true;
@@ -7787,7 +7788,7 @@ int32_t validateSqlNode(SSqlObj* pSql, SSqlNode* pSqlNode, SQueryInfo* pQueryInf
       }
     }
 
-    // todo derivate funtion requires ts column exists in subquery
+    // todo derivative function requires ts column exists in subquery
     STableMeta* pTableMeta = tscGetMetaInfo(pQueryInfo, 0)->pTableMeta;
     SSchema* pSchema = tscGetTableColumnSchema(pTableMeta, 0);
 

src/client/src/tscSub.c

@@ -283,6 +283,7 @@ static int tscUpdateSubscription(STscObj* pObj, SSub* pSub) {
 
   SArray* tables = getTableList(pSql);
   if (tables == NULL) {
+    pSub->lastSyncTime = 0;   //force to get table list next time
     return 0;
   }
   size_t numOfTables = taosArrayGetSize(tables);
@@ -489,7 +490,15 @@ TAOS_RES *taos_consume(TAOS_SUB *tsub) {
   SSub *pSub = (SSub *)tsub;
   if (pSub == NULL) return NULL;
 
-  if (pSub->pSql->cmd.command == TSDB_SQL_RETRIEVE_EMPTY_RESULT) {
+  if (pSub->pTimer == NULL) {
+    int64_t duration = taosGetTimestampMs() - pSub->lastConsumeTime;
+    if (duration < (int64_t)(pSub->interval)) {
+      tscDebug("subscription consume too frequently, blocking...");
+      taosMsleep(pSub->interval - (int32_t)duration);
+    }
+  }
+
+  if (pSub->pSql->cmd.command == TSDB_SQL_RETRIEVE_EMPTY_RESULT) {  //may reach here when retireve stable vgroup failed
     SSqlObj* pSql = recreateSqlObj(pSub);
     if (pSql == NULL) {
       return NULL;
@@ -503,6 +512,11 @@ TAOS_RES *taos_consume(TAOS_SUB *tsub) {
 
     pSub->pSql = pSql;
     pSql->pSubscription = pSub;
+
+    // no table list now, force to update it
+    tscDebug("begin table synchronization");
+    if (!tscUpdateSubscription(pSub->taos, pSub)) return NULL;
+    tscDebug("table synchronization completed");    
   }
 
   tscSaveSubscriptionProgress(pSub);
@@ -527,14 +541,6 @@ TAOS_RES *taos_consume(TAOS_SUB *tsub) {
     tscDebug("subscribe:%s set next round subscribe skey:%"PRId64, pSub->topic, pQueryInfo->window.skey);
   }
 
-  if (pSub->pTimer == NULL) {
-    int64_t duration = taosGetTimestampMs() - pSub->lastConsumeTime;
-    if (duration < (int64_t)(pSub->interval)) {
-      tscDebug("subscription consume too frequently, blocking...");
-      taosMsleep(pSub->interval - (int32_t)duration);
-    }
-  }
-
   size_t size = taosArrayGetSize(pSub->progress) * sizeof(STableIdInfo);
   size += sizeof(SQueryTableMsg) + 4096;
   int code = tscAllocPayload(&pSql->cmd, (int)size);

src/client/src/tscUtil.c

@@ -460,6 +460,22 @@ bool tscIsTWAQuery(SQueryInfo* pQueryInfo) {
   return false;
 }
 
+bool tscIsIrateQuery(SQueryInfo* pQueryInfo) {
+  size_t numOfExprs = tscNumOfExprs(pQueryInfo);
+  for (int32_t i = 0; i < numOfExprs; ++i) {
+    SExprInfo* pExpr = tscExprGet(pQueryInfo, i);
+    if (pExpr == NULL) {
+      continue;
+    }
+
+    if (pExpr->base.functionId == TSDB_FUNC_IRATE) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
 bool tscIsSessionWindowQuery(SQueryInfo* pQueryInfo) {
   return pQueryInfo->sessionWindow.gap > 0;
 }
@@ -3477,6 +3493,7 @@ static void tscSubqueryRetrieveCallback(void* param, TAOS_RES* tres, int code) {
   if (pSql->res.code == TSDB_CODE_SUCCESS) {
     (*pSql->fp)(pParentSql->param, pParentSql, pParentSql->res.numOfRows);
   } else {
+    pParentSql->res.code = pSql->res.code;
     tscAsyncResultOnError(pParentSql);
   }
 }

src/connector/jdbc/pom.xml

@@ -122,7 +122,6 @@
                         <exclude>**/FailOverTest.java</exclude>
                         <exclude>**/InvalidResultSetPointerTest.java</exclude>
                         <exclude>**/RestfulConnectionTest.java</exclude>
-                        <exclude>**/TD4144Test.java</exclude>
                         <exclude>**/ConnectMultiTaosdByRestfulWithDifferentTokenTest.java</exclude>
                     </excludes>
                     <testFailureIgnore>true</testFailureIgnore>

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractConnection.java

@@ -1,5 +1,7 @@
 package com.taosdata.jdbc;
 
+import com.taosdata.jdbc.rs.enums.TimestampFormat;
+
 import java.sql.*;
 import java.util.Enumeration;
 import java.util.Map;
@@ -18,7 +20,7 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
         for (String propName : propNames) {
             clientInfoProps.setProperty(propName, properties.getProperty(propName));
         }
-        String timestampFormat = properties.getProperty(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT, "STRING");
+        String timestampFormat = properties.getProperty(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT, String.valueOf(TimestampFormat.STRING));
         clientInfoProps.setProperty(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT, timestampFormat);
     }
 
@@ -516,7 +518,6 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
     public void abort(Executor executor) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_CONNECTION_CLOSED);
-
         // do nothing
     }
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractStatement.java

@@ -9,8 +9,6 @@ public abstract class AbstractStatement extends WrapperImpl implements Statement
     protected List<String> batchedArgs;
     private int fetchSize;
 
-
-
     @Override
     public abstract ResultSet executeQuery(String sql) throws SQLException;
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBError.java

@@ -32,6 +32,7 @@ public class TSDBError {
         TSDBErrorMap.put(TSDBErrorNumbers.ERROR_INVALID_SQL, "invalid sql");
         TSDBErrorMap.put(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE, "numeric value out of range");
         TSDBErrorMap.put(TSDBErrorNumbers.ERROR_UNKNOWN_TAOS_TYPE_IN_TDENGINE, "unknown taos type in tdengine");
+        TSDBErrorMap.put(TSDBErrorNumbers.ERROR_UNKNOWN_TIMESTAMP_PERCISION, "unknown timestamp precision");
 
         /**************************************************/
         TSDBErrorMap.put(TSDBErrorNumbers.ERROR_UNKNOWN, "unknown error");

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBErrorNumbers.java

@@ -25,6 +25,7 @@ public class TSDBErrorNumbers {
     public static final int ERROR_INVALID_SQL = 0x2313;     // invalid sql
     public static final int ERROR_NUMERIC_VALUE_OUT_OF_RANGE = 0x2314;  // numeric value out of range
     public static final int ERROR_UNKNOWN_TAOS_TYPE_IN_TDENGINE = 0x2315; //unknown taos type in tdengine
+    public static final int ERROR_UNKNOWN_TIMESTAMP_PERCISION = 0x2316;     // unknown timestamp precision
 
     public static final int ERROR_UNKNOWN = 0x2350;    //unknown error
 
@@ -62,6 +63,7 @@ public class TSDBErrorNumbers {
         errorNumbers.add(ERROR_INVALID_SQL);
         errorNumbers.add(ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
         errorNumbers.add(ERROR_UNKNOWN_TAOS_TYPE_IN_TDENGINE);
+        errorNumbers.add(ERROR_UNKNOWN_TIMESTAMP_PERCISION);
 
         /*****************************************************/
         errorNumbers.add(ERROR_SUBSCRIBE_FAILED);

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBJNIConnector.java

@@ -216,6 +216,16 @@ public class TSDBJNIConnector {
 
     private native int fetchBlockImp(long connection, long resultSet, TSDBResultSetBlockData blockData);
 
+    /**
+     * Get Result Time Precision.
+     * @return 0: ms, 1: us, 2: ns
+    */
+    public int getResultTimePrecision(long sqlObj) {
+        return this.getResultTimePrecisionImp(this.taos, sqlObj);
+    }
+
+    private native int getResultTimePrecisionImp(long connection, long result);
+
     /**
      * Execute close operation from C to release connection pointer by JNI
      *

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBPreparedStatement.java

@@ -38,7 +38,6 @@ import java.util.regex.Pattern;
 public class TSDBPreparedStatement extends TSDBStatement implements PreparedStatement {
     private String rawSql;
     private Object[] parameters;
-    private boolean isPrepared;
 
     private ArrayList<ColumnInfo> colData;
     private ArrayList<TableTagInfo> tableTags;
@@ -47,8 +46,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     private String tableName;
     private long nativeStmtHandle = 0;
 
-    private volatile TSDBParameterMetaData parameterMetaData;
-
     TSDBPreparedStatement(TSDBConnection connection, String sql) {
         super(connection);
         init(sql);
@@ -61,7 +58,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
                 }
             }
             parameters = new Object[parameterCnt];
-            this.isPrepared = true;
         }
 
         if (parameterCnt > 1) {
@@ -76,11 +72,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
         preprocessSql();
     }
 
-    @Override
-    public int[] executeBatch() throws SQLException {
-        return super.executeBatch();
-    }
-
     /*
      * Some of the SQLs sent by other popular frameworks or tools like Spark, contains syntax that cannot be parsed by
      * the TDengine client. Thus, some simple parsers/filters are intentionally added in this JDBC implementation in
@@ -137,29 +128,15 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
         /***** for inner queries *****/
     }
 
-    /**
-     * Populate parameters into prepared sql statements
-     *
-     * @return a string of the native sql statement for TSDB
-     */
-    private String getNativeSql(String rawSql) throws SQLException {
-        return Utils.getNativeSql(rawSql, this.parameters);
-    }
-
     @Override
     public ResultSet executeQuery() throws SQLException {
-        if (!isPrepared)
+        final String sql = Utils.getNativeSql(this.rawSql, this.parameters);
-            return executeQuery(this.rawSql);
-
-        final String sql = getNativeSql(this.rawSql);
         return executeQuery(sql);
     }
 
     @Override
     public int executeUpdate() throws SQLException {
-        if (!isPrepared)
+        String sql = Utils.getNativeSql(this.rawSql, this.parameters);
-            return executeUpdate(this.rawSql);
-        String sql = getNativeSql(this.rawSql);
         return executeUpdate(sql);
     }
 
@@ -282,26 +259,15 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     @Override
     public boolean execute() throws SQLException {
-        if (!isPrepared)
+        final String sql = Utils.getNativeSql(this.rawSql, this.parameters);
-            return execute(this.rawSql);
-
-        final String sql = getNativeSql(this.rawSql);
         return execute(sql);
     }
 
     @Override
     public void addBatch() throws SQLException {
-        if (this.batchedArgs == null) {
+        String sql = Utils.getNativeSql(this.rawSql, this.parameters);
-            batchedArgs = new ArrayList<>();
-        }
-
-        if (!isPrepared) {
-            addBatch(this.rawSql);
-        } else {
-            String sql = this.getConnection().nativeSQL(this.rawSql);
         addBatch(sql);
     }
-    }
 
     @Override
     public void setCharacterStream(int parameterIndex, Reader reader, int length) throws SQLException {

src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSetRowData.java

@@ -147,30 +147,14 @@ public class TSDBResultSetRowData {
             case TSDBConstants.TSDB_DATA_TYPE_NCHAR:
             case TSDBConstants.TSDB_DATA_TYPE_BINARY:
                 return Integer.parseInt((String) obj);
-            case TSDBConstants.TSDB_DATA_TYPE_UTINYINT: {
+            case TSDBConstants.TSDB_DATA_TYPE_UTINYINT:
-                Byte value = (byte) obj;
+                return parseUnsignedTinyIntToInt(obj);
-                if (value < 0)
+            case TSDBConstants.TSDB_DATA_TYPE_USMALLINT:
-                    throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
+                return parseUnsignedSmallIntToInt(obj);
-                return value;
+            case TSDBConstants.TSDB_DATA_TYPE_UINT:
-            }
+                return parseUnsignedIntegerToInt(obj);
-            case TSDBConstants.TSDB_DATA_TYPE_USMALLINT: {
+            case TSDBConstants.TSDB_DATA_TYPE_UBIGINT:
-                short value = (short) obj;
+                return parseUnsignedBigIntToInt(obj);
-                if (value < 0)
-                    throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
-                return value;
-            }
-            case TSDBConstants.TSDB_DATA_TYPE_UINT: {
-                int value = (int) obj;
-                if (value < 0)
-                    throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
-                return value;
-            }
-            case TSDBConstants.TSDB_DATA_TYPE_UBIGINT: {
-                long value = (long) obj;
-                if (value < 0)
-                    throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
-                return Long.valueOf(value).intValue();
-            }
             case TSDBConstants.TSDB_DATA_TYPE_FLOAT:
                 return ((Float) obj).intValue();
             case TSDBConstants.TSDB_DATA_TYPE_DOUBLE:
@@ -180,6 +164,35 @@ public class TSDBResultSetRowData {
         }
     }
 
+    private byte parseUnsignedTinyIntToInt(Object obj) throws SQLException {
+        byte value = (byte) obj;
+        if (value < 0)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
+        return value;
+    }
+
+    private short parseUnsignedSmallIntToInt(Object obj) throws SQLException {
+        short value = (short) obj;
+        if (value < 0)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
+        return value;
+    }
+
+    private int parseUnsignedIntegerToInt(Object obj) throws SQLException {
+        int value = (int) obj;
+        if (value < 0)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
+        return value;
+    }
+
+    private int parseUnsignedBigIntToInt(Object obj) throws SQLException {
+        long value = (long) obj;
+        if (value < 0)
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
+        return Long.valueOf(value).intValue();
+    }
+
+
     /**
      * $$$ this method is invoked by databaseMetaDataResultSet and so on which use a index start from 1 in JDBC api
      */
@@ -216,7 +229,7 @@ public class TSDBResultSetRowData {
             case TSDBConstants.TSDB_DATA_TYPE_BINARY:
                 return Long.parseLong((String) obj);
             case TSDBConstants.TSDB_DATA_TYPE_UTINYINT: {
-                Byte value = (byte) obj;
+                byte value = (byte) obj;
                 if (value < 0)
                     throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
                 return value;
@@ -414,26 +427,40 @@ public class TSDBResultSetRowData {
      * $$$ this method is invoked by databaseMetaDataResultSet and so on which use a index start from 1 in JDBC api
      */
     public void setTimestampValue(int colIndex, long value) {
-        setTimestamp(colIndex - 1, value);
+        setTimestamp(colIndex - 1, value, 0);
     }
 
     /**
      * !!! this method is invoked by JNI method and the index start from 0 in C implementations
+     * @param precision 0 : ms, 1 : us, 2 : ns
      */
-    public void setTimestamp(int col, long ts) {
+    public void setTimestamp(int col, long ts, int precision) {
-        //TODO: this implementation contains logical error
+        long milliseconds = 0;
-        // when precision is us the (long ts) is 16 digital number
+        int fracNanoseconds = 0;
-        // when precision is ms, the (long ts) is 13 digital number
+        switch (precision) {
-        // we need a JNI function like this:
+            case 0: {
-        //      public void setTimestamp(int col, long epochSecond, long nanoAdjustment)
+                milliseconds = ts;
-        if (ts < 1_0000_0000_0000_0L) {
+                fracNanoseconds = (int)(ts*1_000_000%1_000_000_000);
-            data.set(col, new Timestamp(ts));
+                break;
-        } else {
-            long epochSec = ts / 1000_000l;
-            long nanoAdjustment = ts % 1000_000l * 1000l;
-            Timestamp timestamp = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
-            data.set(col, timestamp);
             }
+            case 1: {
+                milliseconds = ts/1_000;
+                fracNanoseconds = (int)(ts*1_000%1_000_000_000);
+                break;
+            }
+            case 2: {
+                milliseconds = ts/1_000_000;
+                fracNanoseconds = (int)(ts%1_000_000_000);
+                break;
+            }
+            default: {
+                throw new IllegalArgumentException("precision is not valid. precision: " + precision);
+            }
+        }
+
+        Timestamp tsObj = new Timestamp(milliseconds);
+        tsObj.setNanos(fracNanoseconds);
+        data.set(col, tsObj);
     }
 
     public Timestamp getTimestamp(int col, int nativeType) {

src/connector/jdbc/src/main/java/com/taosdata/jdbc/enums/TimestampPrecision.java

@@ -0,0 +1,8 @@
+package com.taosdata.jdbc.enums;
+
+public enum TimestampPrecision {
+    MS,
+    US,
+    NS,
+    UNKNOWN
+}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulPreparedStatement.java

@@ -44,7 +44,7 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
         if (!isPrepared)
             return executeQuery(this.rawSql);
 
-        final String sql = getNativeSql(this.rawSql);
+        final String sql = Utils.getNativeSql(this.rawSql, this.parameters);
         return executeQuery(sql);
     }
 
@@ -55,20 +55,10 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
         if (!isPrepared)
             return executeUpdate(this.rawSql);
 
-        final String sql = getNativeSql(this.rawSql);
+        final String sql = Utils.getNativeSql(rawSql, this.parameters);
         return executeUpdate(sql);
     }
 
-    /****
-     * 将rawSql转换成一条可执行的sql语句，使用属性parameters中的变脸进行替换
-     * 对于insert into ?.? (?,?,?) using ?.? (?,?,?) tags(?, ?, ?) values(?, ?, ?)
-     * @param rawSql，可能是insert、select或其他，使用?做占位符
-     * @return
-     */
-    private String getNativeSql(String rawSql) {
-        return Utils.getNativeSql(rawSql, this.parameters);
-    }
-
     @Override
     public void setNull(int parameterIndex, int sqlType) throws SQLException {
         if (isClosed())
@@ -224,16 +214,13 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         if (!isPrepared)
             return execute(this.rawSql);
-        final String sql = getNativeSql(rawSql);
+        final String sql = Utils.getNativeSql(rawSql, this.parameters);
         return execute(sql);
     }
 
     @Override
     public void addBatch() throws SQLException {
-        if (isClosed())
+        final String sql = Utils.getNativeSql(rawSql, this.parameters);
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
-        final String sql = getNativeSql(this.rawSql);
         addBatch(sql);
     }
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulResultSet.java

@@ -6,6 +6,8 @@ import com.google.common.primitives.Ints;
 import com.google.common.primitives.Longs;
 import com.google.common.primitives.Shorts;
 import com.taosdata.jdbc.*;
+import com.taosdata.jdbc.enums.TimestampPrecision;
+import com.taosdata.jdbc.rs.enums.TimestampFormat;
 import com.taosdata.jdbc.utils.Utils;
 
 import java.math.BigDecimal;
@@ -46,6 +48,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             columnNames.clear();
             columns.clear();
             this.resultSet.clear();
+            this.metaData = new RestfulResultSetMetaData(this.database, null, this);
             return;
         }
         // get head
@@ -131,7 +134,6 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         }
     }
 
-
     private Object parseColumnData(JSONArray row, int colIndex, int taosType) throws SQLException {
         switch (taosType) {
             case TSDBConstants.TSDB_DATA_TYPE_NULL:
@@ -150,44 +152,8 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
                 return row.getFloat(colIndex);
             case TSDBConstants.TSDB_DATA_TYPE_DOUBLE:
                 return row.getDouble(colIndex);
-            case TSDBConstants.TSDB_DATA_TYPE_TIMESTAMP: {
+            case TSDBConstants.TSDB_DATA_TYPE_TIMESTAMP:
-                if (row.get(colIndex) == null)
+                return parseTimestampColumnData(row, colIndex);
-                    return null;
-                String timestampFormat = this.statement.getConnection().getClientInfo(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT);
-                if ("TIMESTAMP".equalsIgnoreCase(timestampFormat)) {
-                    Long value = row.getLong(colIndex);
-                    //TODO: this implementation has bug if the timestamp bigger than 9999_9999_9999_9
-                    if (value < 1_0000_0000_0000_0L)
-                        return new Timestamp(value);
-                    long epochSec = value / 1000_000l;
-                    long nanoAdjustment = value % 1000_000l * 1000l;
-                    return Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
-                }
-                if ("UTC".equalsIgnoreCase(timestampFormat)) {
-                    String value = row.getString(colIndex);
-                    long epochSec = Timestamp.valueOf(value.substring(0, 19).replace("T", " ")).getTime() / 1000;
-                    int fractionalSec = Integer.parseInt(value.substring(20, value.length() - 5));
-                    long nanoAdjustment = 0;
-                    if (value.length() > 28) {
-                        // ms timestamp: yyyy-MM-ddTHH:mm:ss.SSSSSS+0x00
-                        nanoAdjustment = fractionalSec * 1000l;
-                    } else {
-                        // ms timestamp: yyyy-MM-ddTHH:mm:ss.SSS+0x00
-                        nanoAdjustment = fractionalSec * 1000_000l;
-                    }
-                    ZoneOffset zoneOffset = ZoneOffset.of(value.substring(value.length() - 5));
-                    Instant instant = Instant.ofEpochSecond(epochSec, nanoAdjustment).atOffset(zoneOffset).toInstant();
-                    return Timestamp.from(instant);
-                }
-                String value = row.getString(colIndex);
-                if (value.length() <= 23)    // ms timestamp: yyyy-MM-dd HH:mm:ss.SSS
-                    return row.getTimestamp(colIndex);
-                // us timestamp: yyyy-MM-dd HH:mm:ss.SSSSSS
-                long epochSec = Timestamp.valueOf(value.substring(0, 19)).getTime() / 1000;
-                long nanoAdjustment = Integer.parseInt(value.substring(20)) * 1000l;
-                Timestamp timestamp = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
-                return timestamp;
-            }
             case TSDBConstants.TSDB_DATA_TYPE_BINARY:
                 return row.getString(colIndex) == null ? null : row.getString(colIndex).getBytes();
             case TSDBConstants.TSDB_DATA_TYPE_NCHAR:
@@ -197,7 +163,66 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         }
     }
 
-    public class Field {
+    private Timestamp parseTimestampColumnData(JSONArray row, int colIndex) throws SQLException {
+        if (row.get(colIndex) == null)
+            return null;
+        String tsFormatUpperCase = this.statement.getConnection().getClientInfo(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT).toUpperCase();
+        TimestampFormat timestampFormat = TimestampFormat.valueOf(tsFormatUpperCase);
+        switch (timestampFormat) {
+            case TIMESTAMP: {
+                Long value = row.getLong(colIndex);
+                //TODO: this implementation has bug if the timestamp bigger than 9999_9999_9999_9
+                if (value < 1_0000_0000_0000_0L)
+                    return new Timestamp(value);
+                long epochSec = value / 1000_000l;
+                long nanoAdjustment = value % 1000_000l * 1000l;
+                return Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+            }
+            case UTC: {
+                String value = row.getString(colIndex);
+                long epochSec = Timestamp.valueOf(value.substring(0, 19).replace("T", " ")).getTime() / 1000;
+                int fractionalSec = Integer.parseInt(value.substring(20, value.length() - 5));
+                long nanoAdjustment;
+                if (value.length() > 31) {
+                    // ns timestamp: yyyy-MM-ddTHH:mm:ss.SSSSSSSSS+0x00
+                    nanoAdjustment = fractionalSec;
+                } else if (value.length() > 28) {
+                    // ms timestamp: yyyy-MM-ddTHH:mm:ss.SSSSSS+0x00
+                    nanoAdjustment = fractionalSec * 1000L;
+                } else {
+                    // ms timestamp: yyyy-MM-ddTHH:mm:ss.SSS+0x00
+                    nanoAdjustment = fractionalSec * 1000_000L;
+                }
+                ZoneOffset zoneOffset = ZoneOffset.of(value.substring(value.length() - 5));
+                Instant instant = Instant.ofEpochSecond(epochSec, nanoAdjustment).atOffset(zoneOffset).toInstant();
+                return Timestamp.from(instant);
+            }
+            case STRING:
+            default: {
+                String value = row.getString(colIndex);
+                TimestampPrecision precision = Utils.guessTimestampPrecision(value);
+                if (precision == TimestampPrecision.MS) {
+                    // ms timestamp: yyyy-MM-dd HH:mm:ss.SSS
+                    return row.getTimestamp(colIndex);
+                }
+                if (precision == TimestampPrecision.US) {
+                    // us timestamp: yyyy-MM-dd HH:mm:ss.SSSSSS
+                    long epochSec = Timestamp.valueOf(value.substring(0, 19)).getTime() / 1000;
+                    long nanoAdjustment = Integer.parseInt(value.substring(20)) * 1000L;
+                    return Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+                }
+                if (precision == TimestampPrecision.NS) {
+                    // ms timestamp: yyyy-MM-dd HH:mm:ss.SSSSSSSSS
+                    long epochSec = Timestamp.valueOf(value.substring(0, 19)).getTime() / 1000;
+                    long nanoAdjustment = Integer.parseInt(value.substring(20));
+                    return Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+                }
+                throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNKNOWN_TIMESTAMP_PERCISION);
+            }
+        }
+    }
+
+    public static class Field {
         String name;
         int type;
         int length;
@@ -211,6 +236,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             this.note = note;
             this.taos_type = taos_type;
         }
+
     }
 
     @Override
@@ -334,6 +360,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             wasNull = true;
             return 0;
         }
+
         wasNull = false;
         if (value instanceof Timestamp) {
             return ((Timestamp) value).getTime();

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulResultSetMetaData.java

@@ -8,20 +8,22 @@ import java.sql.SQLException;
 import java.sql.Timestamp;
 import java.sql.Types;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 
 public class RestfulResultSetMetaData extends WrapperImpl implements ResultSetMetaData {
 
     private final String database;
-    private ArrayList<RestfulResultSet.Field> fields;
+    private List<RestfulResultSet.Field> fields;
     private final RestfulResultSet resultSet;
 
     public RestfulResultSetMetaData(String database, ArrayList<RestfulResultSet.Field> fields, RestfulResultSet resultSet) {
         this.database = database;
-        this.fields = fields;
+        this.fields = fields == null ? Collections.emptyList() : fields;
         this.resultSet = resultSet;
     }
 
-    public ArrayList<RestfulResultSet.Field> getFields() {
+    public List<RestfulResultSet.Field> getFields() {
         return fields;
     }
 

src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/enums/TimestampFormat.java

@@ -0,0 +1,7 @@
+package com.taosdata.jdbc.rs.enums;
+
+public enum TimestampFormat {
+    STRING,
+    TIMESTAMP,
+    UTC
+}

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/HttpClientPoolUtil.java

@@ -16,13 +16,12 @@ import org.apache.http.protocol.HTTP;
 import org.apache.http.protocol.HttpContext;
 import org.apache.http.util.EntityUtils;
 
-import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
 
 
 public class HttpClientPoolUtil {
 
     private static final String DEFAULT_CONTENT_TYPE = "application/json";
-    private static final String DEFAULT_TOKEN = "cm9vdDp0YW9zZGF0YQ==";
     private static final int DEFAULT_TIME_OUT = 15000;
     private static final int DEFAULT_MAX_PER_ROUTE = 32;
     private static final int DEFAULT_MAX_TOTAL = 1000;
@@ -80,7 +79,7 @@ public class HttpClientPoolUtil {
             method.setHeader("Connection", "keep-alive");
             method.setHeader("Authorization", "Taosd " + token);
 
-            method.setEntity(new StringEntity(data, Charset.forName("UTF-8")));
+            method.setEntity(new StringEntity(data, StandardCharsets.UTF_8));
             HttpContext context = HttpClientContext.create();
             CloseableHttpResponse httpResponse = httpClient.execute(method, context);
             httpEntity = httpResponse.getEntity();
@@ -165,28 +164,18 @@ public class HttpClientPoolUtil {
             httpEntity = httpResponse.getEntity();
             if (httpEntity != null) {
                 responseBody = EntityUtils.toString(httpEntity, "UTF-8");
-//                logger.info("请求URL: " + uri + "+ 返回状态码：" + httpResponse.getStatusLine().getStatusCode());
             }
         } catch (Exception e) {
             if (method != null) {
                 method.abort();
             }
             e.printStackTrace();
-//            logger.error("execute get request exception, url:" + uri + ", exception:" + e.toString() + ",cost time(ms):"
-//                    + (System.currentTimeMillis() - startTime));
-            System.out.println("log:调用 HttpClientPoolUtil execute get request exception, url:" + uri + ", exception:" + e.toString() + ",cost time(ms):"
-                    + (System.currentTimeMillis() - startTime));
         } finally {
             if (httpEntity != null) {
                 try {
                     EntityUtils.consumeQuietly(httpEntity);
                 } catch (Exception e) {
-//                    e.printStackTrace();
+                    new Exception("close response exception, url:" + uri + ", exception:" + e.toString() + ",cost time(ms):" + (System.currentTimeMillis() - startTime)).printStackTrace();
-//                    logger.error("close response exception, url:" + uri + ", exception:" + e.toString()
-//                            + ",cost time(ms):" + (System.currentTimeMillis() - startTime));
-                    new Exception("close response exception, url:" + uri + ", exception:" + e.toString()
-                            + ",cost time(ms):" + (System.currentTimeMillis() - startTime))
-                            .printStackTrace();
                 }
             }
         }

src/connector/jdbc/src/main/java/com/taosdata/jdbc/utils/Utils.java

@@ -3,14 +3,13 @@ package com.taosdata.jdbc.utils;
 import com.google.common.collect.Range;
 import com.google.common.collect.RangeSet;
 import com.google.common.collect.TreeRangeSet;
+import com.taosdata.jdbc.enums.TimestampPrecision;
 
 import java.nio.charset.Charset;
 import java.sql.Date;
 import java.sql.Time;
 import java.sql.Timestamp;
-import java.time.LocalDate;
 import java.time.LocalDateTime;
-import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeFormatterBuilder;
 import java.time.format.DateTimeParseException;
@@ -25,39 +24,52 @@ public class Utils {
 
     private static Pattern ptn = Pattern.compile(".*?'");
 
-    private static final DateTimeFormatter formatter = new DateTimeFormatterBuilder()
+    private static final DateTimeFormatter milliSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSS").toFormatter();
-            .appendPattern("yyyy-MM-dd HH:mm:ss.SSS").toFormatter();
+    private static final DateTimeFormatter microSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSS").toFormatter();
-    private static final DateTimeFormatter formatter2 = new DateTimeFormatterBuilder()
+    private static final DateTimeFormatter nanoSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSSSSS").toFormatter();
-            .appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSS").toFormatter();
 
     public static Time parseTime(String timestampStr) throws DateTimeParseException {
-        LocalTime time;
+        LocalDateTime dateTime = parseLocalDateTime(timestampStr);
-        try {
+        return dateTime != null ? Time.valueOf(dateTime.toLocalTime()) : null;
-            time = LocalTime.parse(timestampStr, formatter);
-        } catch (DateTimeParseException e) {
-            time = LocalTime.parse(timestampStr, formatter2);
-        }
-        return Time.valueOf(time);
     }
 
-    public static Date parseDate(String timestampStr) throws DateTimeParseException {
+    public static Date parseDate(String timestampStr) {
-        LocalDate date;
+        LocalDateTime dateTime = parseLocalDateTime(timestampStr);
-        try {
+        return dateTime != null ? Date.valueOf(String.valueOf(dateTime)) : null;
-            date = LocalDate.parse(timestampStr, formatter);
-        } catch (DateTimeParseException e) {
-            date = LocalDate.parse(timestampStr, formatter2);
-        }
-        return Date.valueOf(date);
     }
 
     public static Timestamp parseTimestamp(String timeStampStr) {
-        LocalDateTime dateTime;
+        LocalDateTime dateTime = parseLocalDateTime(timeStampStr);
-        try {
+        return dateTime != null ? Timestamp.valueOf(dateTime) : null;
-            dateTime = LocalDateTime.parse(timeStampStr, formatter);
-        } catch (DateTimeParseException e) {
-            dateTime = LocalDateTime.parse(timeStampStr, formatter2);
     }
-        return Timestamp.valueOf(dateTime);
+
+    private static LocalDateTime parseLocalDateTime(String timeStampStr) {
+        try {
+            return parseMilliSecTimestamp(timeStampStr);
+        } catch (DateTimeParseException e) {
+            try {
+                return parseMicroSecTimestamp(timeStampStr);
+            } catch (DateTimeParseException ee) {
+                try {
+                    return parseNanoSecTimestamp(timeStampStr);
+                } catch (DateTimeParseException eee) {
+                    eee.printStackTrace();
+                }
+            }
+        }
+        return null;
+    }
+
+    private static LocalDateTime parseMilliSecTimestamp(String timeStampStr) throws DateTimeParseException {
+        return LocalDateTime.parse(timeStampStr, milliSecFormatter);
+    }
+
+    private static LocalDateTime parseMicroSecTimestamp(String timeStampStr) throws DateTimeParseException {
+        return LocalDateTime.parse(timeStampStr, microSecFormatter);
+    }
+
+    private static LocalDateTime parseNanoSecTimestamp(String timeStampStr) throws DateTimeParseException {
+        return LocalDateTime.parse(timeStampStr, nanoSecFormatter);
     }
 
     public static String escapeSingleQuota(String origin) {
@@ -93,6 +105,8 @@ public class Utils {
     }
 
     public static String getNativeSql(String rawSql, Object[] parameters) {
+        if (parameters == null || !rawSql.contains("?"))
+            return rawSql;
         // toLowerCase
         String preparedSql = rawSql.trim().toLowerCase();
         String[] clause = new String[]{"values\\s*\\(.*?\\)", "tags\\s*\\(.*?\\)", "where\\s*.*"};
@@ -167,13 +181,47 @@ public class Utils {
         }).collect(Collectors.joining());
     }
 
-
     public static String formatTimestamp(Timestamp timestamp) {
         int nanos = timestamp.getNanos();
         if (nanos % 1000000l != 0)
-            return timestamp.toLocalDateTime().format(formatter2);
+            return timestamp.toLocalDateTime().format(microSecFormatter);
-        return timestamp.toLocalDateTime().format(formatter);
+        return timestamp.toLocalDateTime().format(milliSecFormatter);
     }
 
-
+    public static TimestampPrecision guessTimestampPrecision(String value) {
+        if (isMilliSecFormat(value))
+            return TimestampPrecision.MS;
+        if (isMicroSecFormat(value))
+            return TimestampPrecision.US;
+        if (isNanoSecFormat(value))
+            return TimestampPrecision.NS;
+        return TimestampPrecision.UNKNOWN;
+    }
+
+    private static boolean isMilliSecFormat(String timestampStr) {
+        try {
+            milliSecFormatter.parse(timestampStr);
+        } catch (DateTimeParseException e) {
+            return false;
+        }
+        return true;
+    }
+
+    private static boolean isMicroSecFormat(String timestampStr) {
+        try {
+            microSecFormatter.parse(timestampStr);
+        } catch (DateTimeParseException e) {
+            return false;
+        }
+        return true;
+    }
+
+    private static boolean isNanoSecFormat(String timestampStr) {
+        try {
+            nanoSecFormatter.parse(timestampStr);
+        } catch (DateTimeParseException e) {
+            return false;
+        }
+        return true;
+    }
 }

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBJNIConnectorTest.java

@@ -1,12 +1,17 @@
 package com.taosdata.jdbc;
 
 import org.junit.Test;
+import static org.junit.Assert.*;
 
 import java.sql.SQLException;
 import java.sql.SQLWarning;
 import java.util.ArrayList;
 import java.util.List;
 
+import java.lang.management.ManagementFactory;
+import java.lang.management.RuntimeMXBean;
+import java.lang.management.ThreadMXBean;
+
 public class TSDBJNIConnectorTest {
 
     private static TSDBResultSetRowData rowData;
@@ -14,17 +19,68 @@ public class TSDBJNIConnectorTest {
     @Test
     public void test() {
         try {
+
+            try {
+                //change sleepSeconds when debugging with attach to process to find PID
+                int sleepSeconds = -1;
+                if (sleepSeconds>0) {
+                    RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();
+                    String jvmName = runtimeBean.getName();
+                    long pid = Long.valueOf(jvmName.split("@")[0]);
+                    System.out.println("JVM PID  = " + pid);
+
+                    Thread.sleep(sleepSeconds*1000);
+                }
+            }
+            catch (Exception e) {
+                e.printStackTrace();
+            }
+
             // init
-            TSDBJNIConnector.init("/etc/taos/taos.cfg", null, null, null);
+            TSDBJNIConnector.init("/etc/taos", null, null, null);
+
             // connect
             TSDBJNIConnector connector = new TSDBJNIConnector();
-            connector.connect("127.0.0.1", 6030, "unsign_jni", "root", "taosdata");
+            connector.connect("127.0.0.1", 6030, null, "root", "taosdata");
+
+            // setup
+            String setupSqlStrs[] = {"create database if not exists d precision \"us\"",
+                                      "create table if not exists d.t(ts timestamp, f int)",
+                                      "create database if not exists d2",
+                                      "create table if not exists d2.t2(ts timestamp, f int)",
+                                      "insert into d.t values(now+100s, 100)",
+                                      "insert into d2.t2 values(now+200s, 200)"
+                                      };
+            for (String setupSqlStr : setupSqlStrs) {
+                long setupSql = connector.executeQuery(setupSqlStr);
+
+                assertEquals(0, connector.getResultTimePrecision(setupSql));
+                if (connector.isUpdateQuery(setupSql)) {
+                    connector.freeResultSet(setupSql);
+                }
+            }
+
+            {
+                long sqlObj1 = connector.executeQuery("select * from d2.t2");
+                assertEquals(0, connector.getResultTimePrecision(sqlObj1));
+                List<ColumnMetaData> columnMetaDataList = new ArrayList<>();
+                int code = connector.getSchemaMetaData(sqlObj1, columnMetaDataList);
+                rowData = new TSDBResultSetRowData(columnMetaDataList.size());
+                assertTrue(next(connector, sqlObj1));
+                assertEquals(0, connector.getResultTimePrecision(sqlObj1));
+                connector.freeResultSet(sqlObj1);
+            }
+
             // executeQuery
-            long pSql = connector.executeQuery("select * from unsign_jni.us_table");
+            long pSql = connector.executeQuery("select * from d.t");
+
             if (connector.isUpdateQuery(pSql)) {
                 connector.freeResultSet(pSql);
                 throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_WITH_EXECUTEQUERY);
             }
+
+            assertEquals(1, connector.getResultTimePrecision(pSql));
+
             // get schema
             List<ColumnMetaData> columnMetaDataList = new ArrayList<>();
             int code = connector.getSchemaMetaData(pSql, columnMetaDataList);
@@ -37,6 +93,8 @@ public class TSDBJNIConnectorTest {
             if (code == TSDBConstants.JNI_NUM_OF_FIELDS_0) {
                 throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_JNI_NUM_OF_FIELDS_0);
             }
+
+            assertEquals(1, connector.getResultTimePrecision(pSql));
             int columnSize = columnMetaDataList.size();
             // print metadata
             for (int i = 0; i < columnSize; i++) {
@@ -45,9 +103,8 @@ public class TSDBJNIConnectorTest {
             rowData = new TSDBResultSetRowData(columnSize);
             // iterate resultSet
             for (int i = 0; next(connector, pSql); i++) {
-//                System.out.println("col[" + i + "] size: " + rowData.getColSize());
+                assertEquals(1, connector.getResultTimePrecision(pSql));
-//                rowData.getData().stream().forEach(col -> System.out.print(col + "\t"));
+                System.out.println();
-//                System.out.println();
             }
             // close resultSet
             code = connector.freeResultSet(pSql);

src/connector/jdbc/src/test/java/com/taosdata/jdbc/TSDBPreparedStatementTest.java

@@ -5,7 +5,6 @@ import org.junit.*;
 import java.io.IOException;
 import java.math.BigDecimal;
 import java.sql.*;
-import java.time.LocalTime;
 import java.util.ArrayList;
 import java.util.Random;
 
@@ -15,6 +14,7 @@ public class TSDBPreparedStatementTest {
     private static Connection conn;
     private static final String sql_insert = "insert into t1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
     private static final String sql_select = "select * from t1 where ts >= ? and ts < ? and f1 >= ?";
+    private static final String dbname = "test_pstmt_jni";
 
     private PreparedStatement pstmt_insert;
     private PreparedStatement pstmt_select;
@@ -585,15 +585,14 @@ public class TSDBPreparedStatementTest {
             rows++;
         }
         Assert.assertEquals(numOfRows, rows);
-        
     }
 
-    @Test
+    @Test(expected = SQLException.class)
     public void createTwoSameDbTest() throws SQLException {
+        // when
         Statement stmt = conn.createStatement();
-                
         stmt.execute("create database dbtest");
-        Assert.assertThrows(SQLException.class, () -> stmt.execute("create database dbtest"));                
+        stmt.execute("create database dbtest");
     }
 
     @Test
@@ -1097,9 +1096,9 @@ public class TSDBPreparedStatementTest {
         try {
             conn = DriverManager.getConnection("jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata");
             try (Statement stmt = conn.createStatement()) {
-                stmt.execute("drop database if exists test_pstmt_jni");
+                stmt.execute("drop database if exists " + dbname);
-                stmt.execute("create database if not exists test_pstmt_jni");
+                stmt.execute("create database if not exists " + dbname);
-                stmt.execute("use test_pstmt_jni");
+                stmt.execute("use " + dbname);
             }
         } catch (SQLException e) {
             e.printStackTrace();
@@ -1109,6 +1108,9 @@ public class TSDBPreparedStatementTest {
     @AfterClass
     public static void afterClass() {
         try {
+            Statement statement = conn.createStatement();
+            statement.execute("drop database if exists " + dbname);
+            statement.close();
             if (conn != null)
                 conn.close();
         } catch (SQLException e) {

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/DoubleQuoteInSqlTest.java

@@ -7,56 +7,64 @@ import org.junit.*;
 import java.sql.*;
 import java.util.Properties;
 
-public class TD4174Test {
+public class DoubleQuoteInSqlTest {
-    private Connection conn;
     private static final String host = "127.0.0.1";
+    private static final String dbname = "td4174";
+
+    private Connection conn;
 
     @Test
     public void test() {
+        // given
         long ts = System.currentTimeMillis();
-        try (PreparedStatement pstmt = conn.prepareStatement("insert into weather values(" + ts + ", ?)")) {
         JSONObject value = new JSONObject();
         value.put("name", "John Smith");
         value.put("age", 20);
-            Assert.assertEquals("{\"name\":\"John Smith\",\"age\":20}",value.toJSONString());
-            pstmt.setString(1, value.toJSONString());
 
-            int ret = pstmt.executeUpdate();
+        // when
-            Assert.assertEquals(1, ret);
+        int ret = 0;
+        try (PreparedStatement pstmt = conn.prepareStatement("insert into weather values(" + ts + ", ?)")) {
+            pstmt.setString(1, value.toJSONString());
+            ret = pstmt.executeUpdate();
         } catch (SQLException e) {
             e.printStackTrace();
         }
-    }
 
-    public static void main(String[] args) {
+        // then
-        JSONObject value = new JSONObject();
+        Assert.assertEquals("{\"name\":\"John Smith\",\"age\":20}", value.toJSONString());
-        value.put("name", "John Smith");
+        Assert.assertEquals(1, ret);
-        value.put("age", 20);
-        System.out.println(value.toJSONString());
     }
 
     @Before
-    public void before() throws SQLException {
+    public void before() {
         String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
         Properties properties = new Properties();
         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");
 
+        try {
             conn = DriverManager.getConnection(url, properties);
-        try (Statement stmt = conn.createStatement()) {
+            Statement stmt = conn.createStatement();
-            stmt.execute("drop database if exists td4174");
+            stmt.execute("drop database if exists " + dbname);
-            stmt.execute("create database if not exists td4174");
+            stmt.execute("create database if not exists " + dbname);
-            stmt.execute("use td4174");
+            stmt.execute("use " + dbname);
             stmt.execute("create table weather(ts timestamp, text binary(64))");
+        } catch (SQLException e) {
+            e.printStackTrace();
         }
     }
 
     @After
-    public void after() throws SQLException {
+    public void after() {
-        if (conn != null)
+        try {
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.close();
             conn.close();
-
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
     }
 
 }

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/MicroSecondPrecisionJNITest.java

@@ -10,7 +10,7 @@ import org.junit.Test;
 import java.sql.*;
 import java.util.Properties;
 
-public class TwoTypeTimestampPercisionInJniTest {
+public class MicroSecondPrecisionJNITest {
 
     private static final String host = "127.0.0.1";
     private static final String ms_timestamp_db = "ms_precision_test";

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/MicroSecondPrecisionRestfulTest.java

@@ -10,10 +10,9 @@ import org.junit.Test;
 import java.sql.*;
 import java.util.Properties;
 
-public class TwoTypeTimestampPercisionInRestfulTest {
+public class MicroSecondPrecisionRestfulTest {
 
     private static final String host = "127.0.0.1";
-
     private static final String ms_timestamp_db = "ms_precision_test";
     private static final String us_timestamp_db = "us_precision_test";
     private static final long timestamp1 = System.currentTimeMillis();

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/NanoSecondTimestampJNITest.java

@@ -0,0 +1,182 @@
+package com.taosdata.jdbc.cases;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.sql.*;
+import java.time.Instant;
+import java.util.Random;
+
+public class NanoSecondTimestampJNITest {
+
+    private static final String host = "127.0.0.1";
+    private static final String dbname = "nano_sec_test";
+    private static final Random random = new Random(System.currentTimeMillis());
+    private static Connection conn;
+
+    @Test
+    public void insertUsingLongValue() {
+        // given
+        long ms = System.currentTimeMillis();
+        long ns = ms * 1000_000 + random.nextInt(1000_000);
+
+        // when
+        int ret = 0;
+        try (Statement stmt = conn.createStatement()) {
+            ret = stmt.executeUpdate("insert into weather(ts, temperature, humidity) values(" + ns + ", 12.3, 4)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(1, ret);
+    }
+
+    @Test
+    public void insertUsingStringValue() {
+        // given
+
+        // when
+        int ret = 0;
+        try (Statement stmt = conn.createStatement()) {
+            ret = stmt.executeUpdate("insert into weather(ts, temperature, humidity) values('2021-01-01 12:00:00.123456789', 12.3, 4)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(1, ret);
+    }
+
+    @Test
+    public void insertUsingTimestampValue() {
+        // given
+        long epochSec = System.currentTimeMillis() / 1000;
+        long nanoAdjustment = random.nextInt(1000_000_000);
+        Timestamp ts = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+
+        // when
+        int ret = 0;
+        String sql = "insert into weather(ts, temperature, humidity) values( ?, ?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, ts);
+            pstmt.setFloat(2, 12.34f);
+            pstmt.setInt(3, 55);
+            ret = pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(1, ret);
+    }
+
+    @Test
+    public void selectUsingLongValue() throws SQLException {
+        // given
+        long ms = System.currentTimeMillis();
+        long ns = ms * 1000_000L + random.nextInt(1000_000);
+
+        // when
+        ResultSet rs = null;
+        try (Statement stmt = conn.createStatement()) {
+            stmt.executeUpdate("insert into weather(ts, temperature, humidity) values(" + ns + ", 12.3, 4)");
+            rs = stmt.executeQuery("select * from weather");
+            rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        long actual = rs.getLong(1);
+        Assert.assertEquals(ms, actual);
+        actual = rs.getLong("ts");
+        Assert.assertEquals(ms, actual);
+    }
+
+    @Test
+    public void selectUsingStringValue() throws SQLException {
+        // given
+        String timestampStr = "2021-01-01 12:00:00.123456789";
+
+        // when
+        ResultSet rs = null;
+        try (Statement stmt = conn.createStatement()) {
+            stmt.executeUpdate("insert into weather(ts, temperature, humidity) values('" + timestampStr + "', 12.3, 4)");
+            rs = stmt.executeQuery("select * from weather");
+            rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        String actual = rs.getString(1);
+        Assert.assertEquals(timestampStr, actual);
+        actual = rs.getString("ts");
+        Assert.assertEquals(timestampStr, actual);
+    }
+
+    @Test
+    public void selectUsingTimestampValue() throws SQLException {
+        // given
+        long timeMillis = System.currentTimeMillis();
+        long epochSec = timeMillis / 1000;
+        long nanoAdjustment = (timeMillis % 1000) * 1000_000L + random.nextInt(1000_000);
+        Timestamp ts = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+
+        // insert one row
+        String sql = "insert into weather(ts, temperature, humidity) values( ?, ?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, ts);
+            pstmt.setFloat(2, 12.34f);
+            pstmt.setInt(3, 55);
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // when
+        ResultSet rs = null;
+        try (Statement stmt = conn.createStatement()) {
+            rs = stmt.executeQuery("select * from weather");
+            rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Timestamp actual = rs.getTimestamp(1);
+        Assert.assertEquals(ts, actual);
+        actual = rs.getTimestamp("ts");
+        Assert.assertEquals(ts, actual);
+        Assert.assertEquals(timeMillis, actual.getTime());
+        Assert.assertEquals(nanoAdjustment, actual.getNanos());
+    }
+
+    @Before
+    public void before() {
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop table if exists weather");
+            stmt.execute("create table weather(ts timestamp, temperature float, humidity int)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() {
+        final String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        try {
+            conn = DriverManager.getConnection(url);
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.execute("create database if not exists " + dbname + " precision 'ns'");
+            stmt.execute("use " + dbname);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/NanoSecondTimestampRestfulTest.java

@@ -0,0 +1,182 @@
+package com.taosdata.jdbc.cases;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.sql.*;
+import java.time.Instant;
+import java.util.Random;
+
+public class NanoSecondTimestampRestfulTest {
+
+    private static final String host = "127.0.0.1";
+    private static final String dbname = "nano_sec_test";
+    private static final Random random = new Random(System.currentTimeMillis());
+    private static Connection conn;
+
+    @Test
+    public void insertUsingLongValue() {
+        // given
+        long ms = System.currentTimeMillis();
+        long ns = ms * 1000_000 + random.nextInt(1000_000);
+
+        // when
+        int ret = 0;
+        try (Statement stmt = conn.createStatement()) {
+            ret = stmt.executeUpdate("insert into weather(ts, temperature, humidity) values(" + ns + ", 12.3, 4)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(1, ret);
+    }
+
+    @Test
+    public void insertUsingStringValue() {
+        // given
+
+        // when
+        int ret = 0;
+        try (Statement stmt = conn.createStatement()) {
+            ret = stmt.executeUpdate("insert into weather(ts, temperature, humidity) values('2021-01-01 12:00:00.123456789', 12.3, 4)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(1, ret);
+    }
+
+    @Test
+    public void insertUsingTimestampValue() {
+        // given
+        long epochSec = System.currentTimeMillis() / 1000;
+        long nanoAdjustment = random.nextInt(1000_000_000);
+        Timestamp ts = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+
+        // when
+        int ret = 0;
+        String sql = "insert into weather(ts, temperature, humidity) values( ?, ?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, ts);
+            pstmt.setFloat(2, 12.34f);
+            pstmt.setInt(3, 55);
+            ret = pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(1, ret);
+    }
+
+    @Test
+    public void selectUsingLongValue() throws SQLException {
+        // given
+        long ms = System.currentTimeMillis();
+        long ns = ms * 1000_000L + random.nextInt(1000_000);
+
+        // when
+        ResultSet rs = null;
+        try (Statement stmt = conn.createStatement()) {
+            stmt.executeUpdate("insert into weather(ts, temperature, humidity) values(" + ns + ", 12.3, 4)");
+            rs = stmt.executeQuery("select * from weather");
+            rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        long actual = rs.getLong(1);
+        Assert.assertEquals(ms, actual);
+        actual = rs.getLong("ts");
+        Assert.assertEquals(ms, actual);
+    }
+
+    @Test
+    public void selectUsingStringValue() throws SQLException {
+        // given
+        String timestampStr = "2021-01-01 12:00:00.123456789";
+
+        // when
+        ResultSet rs = null;
+        try (Statement stmt = conn.createStatement()) {
+            stmt.executeUpdate("insert into weather(ts, temperature, humidity) values('" + timestampStr + "', 12.3, 4)");
+            rs = stmt.executeQuery("select * from weather");
+            rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        String actual = rs.getString(1);
+        Assert.assertEquals(timestampStr, actual);
+        actual = rs.getString("ts");
+        Assert.assertEquals(timestampStr, actual);
+    }
+
+    @Test
+    public void selectUsingTimestampValue() throws SQLException {
+        // given
+        long timeMillis = System.currentTimeMillis();
+        long epochSec = timeMillis / 1000;
+        long nanoAdjustment = (timeMillis % 1000) * 1000_000L + random.nextInt(1000_000);
+        Timestamp ts = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+
+        // insert one row
+        String sql = "insert into weather(ts, temperature, humidity) values( ?, ?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, ts);
+            pstmt.setFloat(2, 12.34f);
+            pstmt.setInt(3, 55);
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // when
+        ResultSet rs = null;
+        try (Statement stmt = conn.createStatement()) {
+            rs = stmt.executeQuery("select * from weather");
+            rs.next();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Timestamp actual = rs.getTimestamp(1);
+        Assert.assertEquals(ts, actual);
+        actual = rs.getTimestamp("ts");
+        Assert.assertEquals(ts, actual);
+        Assert.assertEquals(timeMillis, actual.getTime());
+        Assert.assertEquals(nanoAdjustment, actual.getNanos());
+    }
+
+    @Before
+    public void before() {
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop table if exists weather");
+            stmt.execute("create table weather(ts timestamp, temperature float, humidity int)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() {
+        final String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
+        try {
+            conn = DriverManager.getConnection(url);
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.execute("create database if not exists " + dbname + " precision 'ns'");
+            stmt.execute("use " + dbname);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/NullValueInResultSetJNITest.java

@@ -6,7 +6,7 @@ import org.junit.Test;
 
 import java.sql.*;
 
-public class NullValueInResultSetForJdbcJniTest {
+public class NullValueInResultSetJNITest {
 
     private static final String host = "127.0.0.1";
     Connection conn;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/NullValueInResultSetRestfulTest.java

@@ -6,7 +6,7 @@ import org.junit.Test;
 
 import java.sql.*;
 
-public class NullValueInResultSetForJdbcRestfulTest {
+public class NullValueInResultSetRestfulTest {
 
     private static final String host = "127.0.0.1";
     Connection conn;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/NullValueInResultSetTest.java

@@ -7,7 +7,7 @@ import org.junit.*;
 import java.sql.*;
 import java.util.Properties;
 
-public class TD3841Test {
+public class NullValueInResultSetTest {
     private static final String host = "127.0.0.1";
     private static Properties properties;
     private static Connection conn_restful;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/PreparedStatementBatchInsertJNITest.java

@@ -0,0 +1,98 @@
+package com.taosdata.jdbc.cases;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.List;
+import java.util.Random;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+public class PreparedStatementBatchInsertJNITest {
+
+    private static final String host = "127.0.0.1";
+    private static final String dbname = "td4668";
+
+    private final Random random = new Random(System.currentTimeMillis());
+    private Connection conn;
+
+    @Test
+    public void test() {
+        // given
+        long ts = System.currentTimeMillis();
+        List<Object[]> rows = IntStream.range(0, 10).mapToObj(i -> {
+            Object[] row = new Object[6];
+            final String groupId = String.format("%02d", random.nextInt(100));
+            // table name (d + groupId)组合
+            row[0] = "d" + groupId;
+            // tag
+            row[1] = groupId;
+            // ts
+            row[2] = ts + i;
+            // current 电流
+            row[3] = random.nextFloat();
+            // voltage 电压
+            row[4] = Math.random() > 0.5 ? 220 : 380;
+            // phase 相位
+            row[5] = random.nextInt(10);
+            return row;
+        }).collect(Collectors.toList());
+        final String sql = "INSERT INTO ? (TS,CURRENT,VOLTAGE,PHASE) USING METERS TAGS (?)  VALUES (?,?,?,?)";
+
+        // when
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            for (Object[] row : rows) {
+                for (int i = 0; i < row.length; i++) {
+                    pstmt.setObject(i + 1, row[i]);
+                }
+                pstmt.addBatch();
+            }
+            pstmt.executeBatch();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            Assert.fail();
+        }
+
+        // then
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select * from meters");
+            int count = 0;
+            while (rs.next()) {
+                count++;
+            }
+            Assert.assertEquals(10, count);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Before
+    public void before() {
+        try {
+            conn = DriverManager.getConnection("jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata");
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.execute("create database if not exists " + dbname);
+            stmt.execute("use " + dbname);
+            stmt.execute("create table meters(ts timestamp, current float, voltage int, phase int) tags(groupId int)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @After
+    public void after() {
+        try {
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.close();
+            conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/PreparedStatementBatchInsertRestfulTest.java

@@ -0,0 +1,98 @@
+package com.taosdata.jdbc.cases;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.List;
+import java.util.Random;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+public class PreparedStatementBatchInsertRestfulTest {
+
+    private static final String host = "127.0.0.1";
+    private static final String dbname = "td4668";
+
+    private final Random random = new Random(System.currentTimeMillis());
+    private Connection conn;
+
+    @Test
+    public void test() {
+        // given
+        long ts = System.currentTimeMillis();
+        List<Object[]> rows = IntStream.range(0, 10).mapToObj(i -> {
+            Object[] row = new Object[6];
+            final String groupId = String.format("%02d", random.nextInt(100));
+            // table name (d + groupId)组合
+            row[0] = "d" + groupId;
+            // tag
+            row[1] = groupId;
+            // ts
+            row[2] = ts + i;
+            // current 电流
+            row[3] = random.nextFloat();
+            // voltage 电压
+            row[4] = Math.random() > 0.5 ? 220 : 380;
+            // phase 相位
+            row[5] = random.nextInt(10);
+            return row;
+        }).collect(Collectors.toList());
+        final String sql = "INSERT INTO ? (TS,CURRENT,VOLTAGE,PHASE) USING METERS TAGS (?)  VALUES (?,?,?,?)";
+
+        // when
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            for (Object[] row : rows) {
+                for (int i = 0; i < row.length; i++) {
+                    pstmt.setObject(i + 1, row[i]);
+                }
+                pstmt.addBatch();
+            }
+            pstmt.executeBatch();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            Assert.fail();
+        }
+
+        // then
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select * from meters");
+            int count = 0;
+            while (rs.next()) {
+                count++;
+            }
+            Assert.assertEquals(10, count);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Before
+    public void before() {
+        try {
+            conn = DriverManager.getConnection("jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata");
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.execute("create database if not exists " + dbname);
+            stmt.execute("use " + dbname);
+            stmt.execute("create table meters(ts timestamp, current float, voltage int, phase int) tags(groupId int)");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @After
+    public void after() {
+        try {
+            Statement stmt = conn.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.close();
+            conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/ResultSetMetaShouldNotBeNullRestfulTest.java

@@ -0,0 +1,86 @@
+package com.taosdata.jdbc.cases;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+
+public class ResultSetMetaShouldNotBeNullRestfulTest {
+
+    private static final String host = "127.0.0.1";
+    private static final String dbname = "td4745";
+
+    private Connection connection;
+
+    @Test
+    public void testExecuteQuery() {
+        // given
+        ResultSetMetaData metaData = null;
+        int columnCount = -1;
+
+        // when
+        try {
+            Statement statement = connection.createStatement();
+            metaData = statement.executeQuery("select * from weather").getMetaData();
+            columnCount = metaData.getColumnCount();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertNotNull(metaData);
+        Assert.assertEquals(0, columnCount);
+    }
+
+    @Test
+    public void testExecute() {
+        // given
+        ResultSetMetaData metaData = null;
+        int columnCount = -1;
+        boolean execute = false;
+        // when
+        try {
+            Statement statement = connection.createStatement();
+            execute = statement.execute("select * from weather");
+            metaData = statement.getResultSet().getMetaData();
+            columnCount = metaData.getColumnCount();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        // then
+        Assert.assertEquals(true, execute);
+        Assert.assertNotNull(metaData);
+        Assert.assertEquals(0, columnCount);
+    }
+
+    @Before
+    public void before() {
+        try {
+            connection = DriverManager.getConnection("jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata");
+            Statement stmt = connection.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.execute("create database if not exists " + dbname);
+            stmt.execute("use " + dbname);
+            stmt.execute("create table weather (ts timestamp, temperature float)");
+            stmt.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @After
+    public void after() {
+        try {
+            Statement stmt = connection.createStatement();
+            stmt.execute("drop database if exists " + dbname);
+            stmt.close();
+            connection.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/TD4144Test.java

@@ -1,105 +0,0 @@
-package com.taosdata.jdbc.cases;
-
-import com.taosdata.jdbc.TSDBConnection;
-import com.taosdata.jdbc.TSDBDriver;
-import com.taosdata.jdbc.TSDBResultSet;
-import com.taosdata.jdbc.TSDBSubscribe;
-import org.junit.AfterClass;
-import org.junit.BeforeClass;
-import org.junit.Test;
-
-import java.sql.DriverManager;
-import java.sql.ResultSetMetaData;
-import java.sql.SQLException;
-import java.sql.Statement;
-import java.util.Properties;
-import java.util.concurrent.TimeUnit;
-
-public class TD4144Test {
-
-    private static TSDBConnection connection;
-    private static final String host = "127.0.0.1";
-
-    private static final String topic = "topic-meter-current-bg-10";
-    private static final String sql = "select * from meters where current > 10";
-    private static final String sql2 = "select * from meters where ts >= '2020-08-15 12:20:00.000'";
-
-
-    @Test
-    public void test() throws SQLException {
-        TSDBSubscribe subscribe = null;
-        TSDBResultSet res = null;
-        boolean hasNext = false;
-
-        try {
-            subscribe = connection.subscribe(topic, sql, false);
-            int count = 0;
-            while (true) {
-                // 等待1秒，避免频繁调用 consume，给服务端造成压力
-                TimeUnit.SECONDS.sleep(1);
-                if (res == null) {
-                    // 消费数据
-                    res = subscribe.consume();
-                    hasNext = res.next();
-                }
-
-                if (res == null) {
-                    continue;
-                }
-                ResultSetMetaData metaData = res.getMetaData();
-                int number = 0;
-                while (hasNext) {
-                    int columnCount = metaData.getColumnCount();
-                    for (int i = 1; i <= columnCount; i++) {
-                        System.out.print(metaData.getColumnLabel(i) + ": " + res.getString(i) + "\t");
-                    }
-                    System.out.println();
-                    count++;
-                    number++;
-                    hasNext = res.next();
-                    if (!hasNext) {
-                        res.close();
-                        res = null;
-                        System.out.println("rows： " + count);
-                    }
-                    if (hasNext == true && number >= 10) {
-                        System.out.println("batch" + number);
-                        break;
-                    }
-                }
-
-            }
-
-        } catch (SQLException | InterruptedException throwables) {
-            throwables.printStackTrace();
-        } finally {
-            if (subscribe != null)
-                subscribe.close(true);
-        }
-    }
-
-    @BeforeClass
-    public static void beforeClass() throws SQLException {
-        Properties properties = new Properties();
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_CHARSET, "UTF-8");
-        properties.setProperty(TSDBDriver.PROPERTY_KEY_TIME_ZONE, "UTC-8");
-        String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
-        connection = (DriverManager.getConnection(url, properties)).unwrap(TSDBConnection.class);
-        try (Statement stmt = connection.createStatement()) {
-            stmt.execute("drop database if exists power");
-            stmt.execute("create database if not exists power");
-            stmt.execute("use power");
-            stmt.execute("create table meters(ts timestamp, current float, voltage int, phase int) tags(location binary(64), groupId int)");
-            stmt.execute("create table d1001 using meters tags(\"Beijing.Chaoyang\", 2)");
-            stmt.execute("create table d1002 using meters tags(\"Beijing.Haidian\", 2)");
-            stmt.execute("insert into d1001 values(\"2020-08-15 12:00:00.000\", 12, 220, 1),(\"2020-08-15 12:10:00.000\", 12.3, 220, 2),(\"2020-08-15 12:20:00.000\", 12.2, 220, 1)");
-            stmt.execute("insert into d1002 values(\"2020-08-15 12:00:00.000\", 9.9, 220, 1),(\"2020-08-15 12:10:00.000\", 10.3, 220, 1),(\"2020-08-15 12:20:00.000\", 11.2, 220, 1)");
-        }
-    }
-
-    @AfterClass
-    public static void afterClass() throws SQLException {
-        if (connection != null)
-            connection.close();
-    }
-}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/utils/UtilsTest.java

@@ -3,22 +3,98 @@ package com.taosdata.jdbc.utils;
 import org.junit.Assert;
 import org.junit.Test;
 
-import static org.junit.Assert.*;
+import java.util.stream.Stream;
 
 public class UtilsTest {
 
     @Test
     public void escapeSingleQuota() {
+        // given
         String s = "'''''a\\'";
+        // when
         String news = Utils.escapeSingleQuota(s);
+        // then
         Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
 
+        // given
         s = "\'''''a\\'";
+        // when
         news = Utils.escapeSingleQuota(s);
+        // then
         Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
 
+        // given
         s = "\'\'\'\''a\\'";
+        // when
         news = Utils.escapeSingleQuota(s);
+        // then
         Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
     }
+
+    @Test
+    public void getNativeSqlReplaceQuestionMarks() {
+        // given
+        String nativeSql = "insert into ?.? (ts, temperature, humidity) using ?.? tags(?,?) values(now, ?, ?)";
+        Object[] parameters = Stream.of("test", "t1", "test", "weather", "beijing", 1, 12.2, 4).toArray();
+
+        // when
+        String actual = Utils.getNativeSql(nativeSql, parameters);
+
+        // then
+        String expected = "insert into test.t1 (ts, temperature, humidity) using test.weather tags('beijing',1) values(now, 12.2, 4)";
+        Assert.assertEquals(expected, actual);
+    }
+
+    @Test
+    public void getNativeSqlReplaceQuestionMarks2() {
+        // given
+        String nativeSql = "INSERT INTO ? (TS,CURRENT,VOLTAGE,PHASE) USING METERS TAGS (?)  VALUES (?,?,?,?)";
+        Object[] parameters = Stream.of("d1", 1, 123, 3.14, 220, 4).toArray();
+
+        // when
+        String actual = Utils.getNativeSql(nativeSql, parameters);
+
+        // then
+        String expected = "INSERT INTO d1 (TS,CURRENT,VOLTAGE,PHASE) USING METERS TAGS (1)  VALUES (123,3.14,220,4)";
+        Assert.assertEquals(expected, actual);
+    }
+
+
+    @Test
+    public void getNativeSqlReplaceNothing() {
+        // given
+        String nativeSql = "insert into test.t1 (ts, temperature, humidity) using test.weather tags('beijing',1) values(now, 12.2, 4)";
+
+        // when
+        String actual = Utils.getNativeSql(nativeSql, null);
+
+        // then
+        Assert.assertEquals(nativeSql, actual);
+    }
+
+    @Test
+    public void getNativeSqlReplaceNothing2() {
+        // given
+        String nativeSql = "insert into test.t1 (ts, temperature, humidity) using test.weather tags('beijing',1) values(now, 12.2, 4)";
+        Object[] parameters = Stream.of("test", "t1", "test", "weather", "beijing", 1, 12.2, 4).toArray();
+
+        // when
+        String actual = Utils.getNativeSql(nativeSql, parameters);
+
+        // then
+        Assert.assertEquals(nativeSql, actual);
+    }
+
+    @Test
+    public void getNativeSqlReplaceNothing3() {
+        // given
+        String nativeSql = "insert into ?.? (ts, temperature, humidity) using ?.? tags(?,?) values(now, ?, ?)";
+
+        // when
+        String actual = Utils.getNativeSql(nativeSql, null);
+
+        // then
+        Assert.assertEquals(nativeSql, actual);
+
+    }
 }

src/connector/python/setup.py

@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.10",
+    version="2.0.11",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",

src/connector/python/taos/cinterface.py

@@ -14,12 +14,22 @@ def _convert_microsecond_to_datetime(micro): #checkpoint
     return datetime.datetime.fromtimestamp(micro / 1000000.0)
 
 
-def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):#checkpoint
+def _convert_nanosecond_to_datetime(nanosec):
+    return nanosec
+
+
+def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C bool row to python row
     """
     _timestamp_converter = _convert_millisecond_to_datetime
-    if micro:
+    if precision == FieldType.C_TIMESTAMP_MILLI:
+        _timestamp_converter = _convert_millisecond_to_datetime
+    elif precision == FieldType.C_TIMESTAMP_MICRO:
         _timestamp_converter = _convert_microsecond_to_datetime
+    elif precision == FieldType.C_TIMESTAMP_NANO:
+        _timestamp_converter = _convert_nanosecond_to_datetime
+    else:
+        raise DatabaseError("Unknown precision returned from database")
 
     return [
         None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
@@ -28,7 +38,7 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):#chec
             :abs(num_of_rows)]]
 
 
-def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_bool_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C bool row to python row
     """
     return [
@@ -38,7 +48,7 @@ def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
             :abs(num_of_rows)]]
 
 
-def _crow_tinyint_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_tinyint_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C tinyint row to python row
     """
     return [None if ele == FieldType.C_TINYINT_NULL else ele for ele in ctypes.cast(
@@ -49,7 +59,7 @@ def _crow_tinyint_unsigned_to_python(
         data,
         num_of_rows,
         nbytes=None,
-        micro=False):
+        precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C tinyint row to python row
     """
     return [
@@ -59,7 +69,7 @@ def _crow_tinyint_unsigned_to_python(
             :abs(num_of_rows)]]
 
 
-def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_smallint_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C smallint row to python row
     """
     return [
@@ -70,7 +80,7 @@ def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False):
 
 
 def _crow_smallint_unsigned_to_python(
-        data, num_of_rows, nbytes=None, micro=False):
+        data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C smallint row to python row
     """
     return [
@@ -80,14 +90,14 @@ def _crow_smallint_unsigned_to_python(
             :abs(num_of_rows)]]
 
 
-def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_int_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C int row to python row
     """
     return [None if ele == FieldType.C_INT_NULL else ele for ele in ctypes.cast(
         data, ctypes.POINTER(ctypes.c_int))[:abs(num_of_rows)]]
 
 
-def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C int row to python row
     """
     return [
@@ -97,7 +107,7 @@ def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
             :abs(num_of_rows)]]
 
 
-def _crow_bigint_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_bigint_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C bigint row to python row
     """
     return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast(
@@ -108,7 +118,7 @@ def _crow_bigint_unsigned_to_python(
         data,
         num_of_rows,
         nbytes=None,
-        micro=False):
+        precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C bigint row to python row
     """
     return [
@@ -118,21 +128,21 @@ def _crow_bigint_unsigned_to_python(
             :abs(num_of_rows)]]
 
 
-def _crow_float_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_float_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C float row to python row
     """
     return [None if math.isnan(ele) else ele for ele in ctypes.cast(
         data, ctypes.POINTER(ctypes.c_float))[:abs(num_of_rows)]]
 
 
-def _crow_double_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_double_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C double row to python row
     """
     return [None if math.isnan(ele) else ele for ele in ctypes.cast(
         data, ctypes.POINTER(ctypes.c_double))[:abs(num_of_rows)]]
 
 
-def _crow_binary_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_binary_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C binary row to python row
     """
     assert(nbytes is not None)
@@ -140,7 +150,7 @@ def _crow_binary_to_python(data, num_of_rows, nbytes=None, micro=False):
         'utf-8') for ele in (ctypes.cast(data, ctypes.POINTER(ctypes.c_char * nbytes)))[:abs(num_of_rows)]]
 
 
-def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
+def _crow_nchar_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C nchar row to python row
     """
     assert(nbytes is not None)
@@ -159,7 +169,7 @@ def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
     return res
 
 
-def _crow_binary_to_python_block(data, num_of_rows, nbytes=None, micro=False):
+def _crow_binary_to_python_block(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C binary row to python row
     """
     assert(nbytes is not None)
@@ -178,7 +188,7 @@ def _crow_binary_to_python_block(data, num_of_rows, nbytes=None, micro=False):
     return res
 
 
-def _crow_nchar_to_python_block(data, num_of_rows, nbytes=None, micro=False):
+def _crow_nchar_to_python_block(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):
     """Function to convert C nchar row to python row
     """
     assert(nbytes is not None)
@@ -448,8 +458,7 @@ class CTaosInterface(object):
             result, ctypes.byref(pblock))
         if num_of_rows == 0:
             return None, 0
-        isMicro = (CTaosInterface.libtaos.taos_result_precision(
+        precision = CTaosInterface.libtaos.taos_result_precision(result)
-            result) == FieldType.C_TIMESTAMP_MICRO)
         blocks = [None] * len(fields)
         fieldL = CTaosInterface.libtaos.taos_fetch_lengths(result)
         fieldLen = [
@@ -462,7 +471,7 @@ class CTaosInterface(object):
             if fields[i]['type'] not in _CONVERT_FUNC_BLOCK:
                 raise DatabaseError("Invalid data type returned from database")
             blocks[i] = _CONVERT_FUNC_BLOCK[fields[i]['type']](
-                data, num_of_rows, fieldLen[i], isMicro)
+                data, num_of_rows, fieldLen[i], precision)
 
         return blocks, abs(num_of_rows)
 
@@ -472,8 +481,7 @@ class CTaosInterface(object):
         pblock = CTaosInterface.libtaos.taos_fetch_row(result)
         if pblock:
             num_of_rows = 1
-            isMicro = (CTaosInterface.libtaos.taos_result_precision(
+            precision = CTaosInterface.libtaos.taos_result_precision(result)
-                result) == FieldType.C_TIMESTAMP_MICRO)
             blocks = [None] * len(fields)
             fieldL = CTaosInterface.libtaos.taos_fetch_lengths(result)
             fieldLen = [
@@ -490,7 +498,7 @@ class CTaosInterface(object):
                     blocks[i] = [None]
                 else:
                     blocks[i] = _CONVERT_FUNC[fields[i]['type']](
-                        data, num_of_rows, fieldLen[i], isMicro)
+                        data, num_of_rows, fieldLen[i], precision)
         else:
             return None, 0
         return blocks, abs(num_of_rows)

src/connector/python/taos/constants.py

@@ -40,3 +40,5 @@ class FieldType(object):
     # Timestamp precision definition
     C_TIMESTAMP_MILLI = 0
     C_TIMESTAMP_MICRO = 1
+    C_TIMESTAMP_NANO = 2
+    C_TIMESTAMP_UNKNOWN = 3

src/dnode/inc/dnodeCfg.h

@@ -27,6 +27,7 @@ void    dnodeUpdateCfg(SDnodeCfg *cfg);
 int32_t dnodeGetDnodeId();
 void    dnodeGetClusterId(char *clusterId);
 void    dnodeGetCfg(int32_t *dnodeId, char *clusterId);
+void    dnodeSetDropped();
 
 #ifdef __cplusplus
 }

src/dnode/src/dnodeCfg.c

@@ -21,6 +21,7 @@
 
 static SDnodeCfg tsCfg = {0};
 static pthread_mutex_t tsCfgMutex;
+static int32_t tsDnodeDropped;
 
 static int32_t dnodeReadCfg();
 static int32_t dnodeWriteCfg();
@@ -34,6 +35,10 @@ int32_t dnodeInitCfg() {
   if (ret == 0) {
     dInfo("dnode cfg is initialized");
   }
+  if (tsDnodeDropped) {
+    dInfo("dnode is dropped, exiting");
+    return -1;
+  }
   return ret;
 }
 
@@ -44,6 +49,14 @@ void dnodeUpdateCfg(SDnodeCfg *cfg) {
   dnodeResetCfg(cfg);
 }
 
+void dnodeSetDropped() {
+  pthread_mutex_lock(&tsCfgMutex);
+  tsDnodeDropped = 1;
+
+  dnodeWriteCfg();
+  pthread_mutex_unlock(&tsCfgMutex);
+}
+
 int32_t dnodeGetDnodeId() {
   int32_t dnodeId = 0;
   pthread_mutex_lock(&tsCfgMutex);
@@ -119,6 +132,14 @@ static int32_t dnodeReadCfg() {
   }
   cfg.dnodeId = (int32_t)dnodeId->valueint;
 
+  cJSON *dnodeDropped = cJSON_GetObjectItem(root, "dnodeDropped");
+  if (!dnodeDropped || dnodeDropped->type != cJSON_Number) {
+    dError("failed to read %s, dnodeDropped not found", file);
+    //goto PARSE_CFG_OVER;
+  } else {
+    tsDnodeDropped = (int32_t)dnodeDropped->valueint;
+  }
+
   cJSON *clusterId = cJSON_GetObjectItem(root, "clusterId");
   if (!clusterId || clusterId->type != cJSON_String) {
     dError("failed to read %s, clusterId not found", file);
@@ -154,6 +175,7 @@ static int32_t dnodeWriteCfg() {
 
   len += snprintf(content + len, maxLen - len, "{\n");
   len += snprintf(content + len, maxLen - len, "  \"dnodeId\": %d,\n", tsCfg.dnodeId);
+  len += snprintf(content + len, maxLen - len, "  \"dnodeDropped\": %d,\n", tsDnodeDropped);
   len += snprintf(content + len, maxLen - len, "  \"clusterId\": \"%s\"\n", tsCfg.clusterId);
   len += snprintf(content + len, maxLen - len, "}\n");
 

src/dnode/src/dnodeVnodes.c

@@ -202,6 +202,7 @@ static void dnodeProcessStatusRsp(SRpcMsg *pMsg) {
       char clusterId[TSDB_CLUSTER_ID_LEN];
       dnodeGetClusterId(clusterId);
       if (clusterId[0] != '\0') {
+        dnodeSetDropped();
         dError("exit zombie dropped dnode");
         exit(EXIT_FAILURE);
       }

src/query/inc/qTableMeta.h

@@ -138,7 +138,6 @@ typedef struct SQueryInfo {
   bool               hasFilter;
   bool               onlyTagQuery;
   bool               orderProjectQuery;
-//  bool               diffQuery;
   bool               stateWindow;
 } SQueryInfo;
 

src/query/src/qAggMain.c

@@ -3613,17 +3613,8 @@ static void deriv_function(SQLFunctionCtx *pCtx) {
       qError("error input type");
   }
 
-  // initial value is not set yet, all data block are null
-  if (!pDerivInfo->valueSet || notNullElems <= 0) {
-    /*
-     * 1. current block and blocks before are full of null
-     * 2. current block may be null value
-     */
-    assert(pCtx->hasNull);
-  } else {
   GET_RES_INFO(pCtx)->numOfRes += notNullElems;
 }
-}
 
 #define DIFF_IMPL(ctx, d, type)                                                              \
   do {                                                                                       \

src/query/src/qExecutor.c

@@ -1312,6 +1312,8 @@ static void doHashGroupbyAgg(SOperatorInfo* pOperator, SGroupbyOperatorInfo *pIn
       }
     }
 
+
+    // todo opt perf
     for (int32_t k = 0; k < pOperator->numOfOutput; ++k) {
       pInfo->binfo.pCtx[k].size = 1;
       int32_t functionId = pInfo->binfo.pCtx[k].functionId;

src/tsdb/src/tsdbMain.c

@@ -812,6 +812,7 @@ int tsdbRestoreInfo(STsdbRepo *pRepo) {
       STable *pTable = pMeta->tables[i];
       if (pTable == NULL) continue;
       pTable->restoreColumnNum = 0;  
+      pTable->hasRestoreLastColumn = false;
     }
   }
 
@@ -895,6 +896,7 @@ int tsdbCacheLastData(STsdbRepo *pRepo, STsdbCfg* oldCfg) {
     maxTableIdx = i;
     if (cacheLastCol) {
       pTable->restoreColumnNum = 0;
+      pTable->hasRestoreLastColumn = false;
     } 
   }
 
@@ -913,6 +915,7 @@ int tsdbCacheLastData(STsdbRepo *pRepo, STsdbCfg* oldCfg) {
       }
       if (need_free_last_col) {
         tsdbFreeLastColumns(pTable);
+        pTable->hasRestoreLastColumn = false;
       }
     }    
   }

src/tsdb/src/tsdbMeta.c

@@ -609,6 +609,7 @@ void tsdbFreeLastColumns(STable* pTable) {
   pTable->maxColNum = 0;
   pTable->lastColSVersion = -1;
   pTable->restoreColumnNum = 0;
+  pTable->hasRestoreLastColumn = false;
 }
 
 int16_t tsdbGetLastColumnsIndexByColId(STable* pTable, int16_t colId) {
@@ -645,6 +646,7 @@ int tsdbInitColIdCacheWithSchema(STable* pTable, STSchema* pSchema) {
   pTable->lastColSVersion = schemaVersion(pSchema);
   pTable->maxColNum = numOfColumn;
   pTable->restoreColumnNum = 0;
+  pTable->hasRestoreLastColumn = false;
   return 0;
 }
 
@@ -657,7 +659,7 @@ int tsdbUpdateLastColSchema(STable *pTable, STSchema *pNewSchema) {
     return 0;
   }
   
-  tsdbInfo("tsdbUpdateLastColSchema:%s,%d->%d", pTable->name->data, pTable->lastColSVersion, schemaVersion(pNewSchema));
+  tsdbDebug("tsdbUpdateLastColSchema:%s,%d->%d", pTable->name->data, pTable->lastColSVersion, schemaVersion(pNewSchema));
   
   int16_t numOfCols = pNewSchema->numOfCols;
   SDataCol *lastCols = (SDataCol*)malloc(numOfCols * sizeof(SDataCol));
@@ -802,6 +804,7 @@ static STable *tsdbNewTable() {
   pTable->lastCols = NULL;
   pTable->restoreColumnNum = 0;
   pTable->maxColNum = 0;
+  pTable->hasRestoreLastColumn = false;
   pTable->lastColSVersion = -1;
   return pTable;
 }

src/tsdb/src/tsdbRead.c

@@ -2520,7 +2520,7 @@ static bool loadCachedLast(STsdbQueryHandle* pQueryHandle) {
     int32_t numOfCols = pTable->maxColNum;
     
     if (pTable->lastCols == NULL || pTable->maxColNum <= 0) {
-      tsdbWarn("no last cached for table, uid:%" PRIu64 ",tid:%d", pTable->tableId.uid, pTable->tableId.tid);
+      tsdbWarn("no last cached for table %s, uid:%" PRIu64 ",tid:%d", pTable->name->data, pTable->tableId.uid, pTable->tableId.tid);
       continue;
     }
     

tests/pytest/dbmgmt/nanoSecondCheck.py

@@ -29,13 +29,14 @@ class TDTestCase:
 
     def run(self):
         tdSql.prepare()
-
         tdSql.execute('reset query cache')
         tdSql.execute('drop database if exists db')
         tdSql.execute('create database db precision "ns";')
         tdSql.query('show databases;')
         tdSql.checkData(0,16,'ns')
         tdSql.execute('use db')
+
+        tdLog.debug('testing nanosecond support in 1st timestamp')
         tdSql.execute('create table tb (ts timestamp, speed int)')
         tdSql.execute('insert into tb values(\'2021-06-10 0:00:00.100000001\', 1);')
         tdSql.execute('insert into tb values(1623254400150000000, 2);')
@@ -47,8 +48,6 @@ class TDTestCase:
         tdSql.execute('insert into tb values(1623254400999999999, 7);')
 
 
-        #TODO: after the connector is updated, run the following commented code
-        #TODO: due to the precision limit of double, spread currently cannot be tested since ns timestampe cannot be accurately represented
         tdSql.query('select * from tb;')
         tdSql.checkData(0,0,'2021-06-10 0:00:00.100000001')
         tdSql.checkData(1,0,'2021-06-10 0:00:00.150000000')
@@ -75,7 +74,7 @@ class TDTestCase:
         # os.system('sudo timedatectl set-ntp off')
         # os.system('sudo timedatectl set-time 2021-06-10')
         tdSql.query('select count(*) from tb where ts > now + 400000000b;')
-        tdSql.checkData(0,0,0)
+        tdSql.checkRows(0)
 
         tdSql.query('select count(*) from tb where ts >= \'2021-06-10 0:00:00.100000001\';')
         tdSql.checkData(0,0,6)
@@ -84,7 +83,7 @@ class TDTestCase:
         tdSql.checkData(0,0,4)
 
         tdSql.query('select count(*) from tb where ts = \'2021-06-10 0:00:00.000000000\';')
-        tdSql.checkData(0,0,0)
+        tdSql.checkRows(0)
 
         tdSql.query('select count(*) from tb where ts = 1623254400150000000;')
         tdSql.checkData(0,0,1)
@@ -119,6 +118,7 @@ class TDTestCase:
         tdSql.query('select * from tb;')
         tdSql.checkRows(7)
 
+        tdLog.debug('testing nanosecond support in other timestamps')
         tdSql.execute('create table tb2 (ts timestamp, speed int, ts2 timestamp);')
         tdSql.execute('insert into tb2 values(\'2021-06-10 0:00:00.100000001\', 1, \'2021-06-11 0:00:00.100000001\');')
         tdSql.execute('insert into tb2 values(1623254400150000000, 2, 1623340800150000000);')
@@ -150,7 +150,7 @@ class TDTestCase:
         # os.system('sudo timedatectl set-ntp off')
         # os.system('sudo timedatectl set-time 2021-06-11')
         tdSql.query('select count(*) from tb2 where ts2 > now + 400000000b;')
-        tdSql.checkData(0,0,0)
+        tdSql.checkRows(0)
 
 
         tdSql.query('select count(*) from tb2 where ts2 >= \'2021-06-11 0:00:00.100000001\';')
@@ -160,7 +160,7 @@ class TDTestCase:
         tdSql.checkData(0,0,5)
 
         tdSql.query('select count(*) from tb2 where ts2 = \'2021-06-11 0:00:00.000000000\';')
-        tdSql.checkData(0,0,0)
+        tdSql.checkRows(0)
 
         tdSql.query('select count(*) from tb2 where ts2 = \'2021-06-11 0:00:00.300000001\';')
         tdSql.checkData(0,0,1)
@@ -190,6 +190,7 @@ class TDTestCase:
         tdSql.query('select * from tb2;')
         tdSql.checkRows(7)
 
+        tdLog.debug('testing ill nanosecond format handling')
         tdSql.execute('create table tb3 (ts timestamp, speed int);')
 
         tdSql.error('insert into tb3 values(16232544001500000, 2);')

tests/pytest/fulltest.sh

@@ -25,6 +25,8 @@ python3 ./test.py -f insert/special_character_show.py
 python3 bug2265.py
 python3 ./test.py -f insert/bug3654.py
 python3 ./test.py -f insert/insertDynamicColBeforeVal.py
+python3 ./test.py -f insert/in_function.py
+python3 ./test.py -f insert/modify_column.py
 
 #table
 python3 ./test.py -f table/alter_wal0.py
@@ -73,6 +75,7 @@ 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/nanoSecondCheck.py
 
 python3 ./test.py -f import_merge/importBlock1HO.py
 python3 ./test.py -f import_merge/importBlock1HPO.py

tests/pytest/functions/function_derivative.py

@@ -130,6 +130,13 @@ class TDTestCase:
         tdSql.prepare()        
         self.insertAndCheckData()
 
+        tdSql.execute("create table st(ts timestamp, c1 int, c2 int) tags(id int)")
+        tdSql.execute("insert into dev1(ts, c1) using st tags(1) values(now, 1)")
+
+        tdSql.error("select derivative(c1, 10s, 0) from (select c1 from st)")
+        tdSql.query("select diff(c1) from (select derivative(c1, 1s, 0) c1 from dev1)")
+        tdSql.checkRows(0)
+              
     def stop(self):
         tdSql.close()
         tdLog.success("%s successfully executed" % __file__)

tests/pytest/insert/in_function.py

@@ -0,0 +1,726 @@
+###################################################################
+#           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 datetime
+
+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(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        # test case for https://jira.taosdata.com:18080/browse/TD-4568
+
+        tdLog.info("=============== step1,check bool and tinyint data type")    
+
+        tdLog.info("=============== step1.1,drop table && create table")    
+        cmd1 = 'drop table if exists in_bool_tinyint_1 ;'
+        cmd2 = 'drop table if exists in_bool_tinyint_2 ;'
+        cmd3 = 'drop table if exists in_bool_tinyint_3 ;'
+        cmd10 = 'drop table if exists in_stable_1 ;'
+        cmd11 = 'create stable in_stable_1(ts timestamp,in_bool bool,in_tinyint tinyint) tags (tin_bool bool,tin_tinyint tinyint) ;'
+        cmd12 = 'create table in_bool_tinyint_1 using in_stable_1 tags(\'true\',\'127\') ; '
+        cmd13 = 'create table in_bool_tinyint_2 using in_stable_1 tags(\'false\',\'-127\') ; '
+        cmd14 = 'create table in_bool_tinyint_3 using in_stable_1 tags(\'false\',\'0\') ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)
+        tdLog.info(cmd10)
+        tdSql.execute(cmd10)        
+        tdLog.info(cmd11)
+        tdSql.execute(cmd11)
+        tdLog.info(cmd12)
+        tdSql.execute(cmd12)
+        tdLog.info(cmd13)
+        tdSql.execute(cmd13)
+        tdLog.info(cmd14)
+        tdSql.execute(cmd14)        
+
+        tdLog.info("=============== step1.2,insert stable right data and check in function") 
+        cmd1 = 'insert into in_bool_tinyint_1 values(now,\'true\',\'-127\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from in_stable_1 where in_bool in (true) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')
+        tdSql.checkData(0,3,'True') 
+        tdSql.checkData(0,4,'127')  
+        tdSql.query('select * from in_stable_1 where in_tinyint in (-127) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')
+        tdSql.checkData(0,3,'True') 
+        tdSql.checkData(0,4,'127')     
+        tdSql.query('select * from in_stable_1 where tin_bool in (true) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')
+        tdSql.checkData(0,3,'True') 
+        tdSql.checkData(0,4,'127')  
+        tdSql.query('select * from in_stable_1 where tin_tinyint in (127) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')
+        tdSql.checkData(0,3,'True') 
+        tdSql.checkData(0,4,'127')  
+        tdSql.query('select * from in_bool_tinyint_1 where in_bool in (true) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')
+        tdSql.query('select * from in_bool_tinyint_1 where in_tinyint in (-127) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')                
+
+        cmd2 = 'insert into in_bool_tinyint_2 values(now,\'false\',\'127\') ;'
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)         
+        tdSql.query('select * from in_stable_1 where in_bool in (false) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')
+        tdSql.checkData(0,3,'False') 
+        tdSql.checkData(0,4,'-127') 
+        tdSql.query('select * from in_stable_1 where in_tinyint in (127) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')
+        tdSql.checkData(0,3,'False') 
+        tdSql.checkData(0,4,'-127')   
+        tdSql.query('select * from in_stable_1 where tin_bool in (false) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')
+        tdSql.checkData(0,3,'False') 
+        tdSql.checkData(0,4,'-127') 
+        tdSql.query('select * from in_stable_1 where tin_tinyint in (-127) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')
+        tdSql.checkData(0,3,'False') 
+        tdSql.checkData(0,4,'-127') 
+        tdSql.query('select * from in_bool_tinyint_2 where in_bool in (false) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')
+        tdSql.query('select * from in_bool_tinyint_2 where in_tinyint in (127) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')         
+
+        cmd3 = 'insert into in_bool_tinyint_3 values(now,\'true\',\'0\') ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)         
+        tdSql.query('select * from in_stable_1 where in_tinyint in (0) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'False') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.query('select * from in_stable_1 where tin_tinyint in (0) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'False') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.query('select * from in_bool_tinyint_3 where in_bool in (true) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'0')
+        tdSql.query('select * from in_bool_tinyint_3 where in_tinyint in (0) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'0')
+
+
+        tdLog.info("=============== step1.3,drop normal table && create table") 
+        cmd1 = 'drop table if exists normal_in_bool_tinyint_1 ;'
+        cmd2 = 'create table normal_in_bool_tinyint_1 (ts timestamp,in_bool bool,in_tinyint tinyint) ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+      
+
+        tdLog.info("=============== step1.4,insert normal table right data and check in function") 
+        cmd1 = 'insert into normal_in_bool_tinyint_1 values(now,\'true\',\'-127\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from normal_in_bool_tinyint_1 where in_bool in (true) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')         
+        tdSql.query('select * from normal_in_bool_tinyint_1 where in_tinyint in (-127) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'-127')  
+
+        cmd2 = 'insert into normal_in_bool_tinyint_1 values(now,\'false\',\'127\') ;'
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)         
+        tdSql.query('select * from normal_in_bool_tinyint_1 where in_bool in (false) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127') 
+        tdSql.query('select * from normal_in_bool_tinyint_1 where in_tinyint in (127) order by ts desc')
+        tdSql.checkData(0,1,'False') 
+        tdSql.checkData(0,2,'127')        
+
+        cmd3 = 'insert into normal_in_bool_tinyint_1 values(now,\'true\',\'0\') ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)         
+        tdSql.query('select * from normal_in_bool_tinyint_1 where in_tinyint in (0) order by ts desc')
+        tdSql.checkData(0,1,'True') 
+        tdSql.checkData(0,2,'0')
+
+
+ 
+        tdLog.info("=============== step2,check int、smallint and bigint data type")  
+
+        tdLog.info("=============== step2.1,drop table && create table")    
+        cmd1 = 'drop table if exists in_int_smallint_bigint_1 ;'
+        cmd2 = 'drop table if exists in_int_smallint_bigint_2 ;'
+        cmd3 = 'drop table if exists in_int_smallint_bigint_3 ;'
+        cmd10 = 'drop table if exists in_stable_2 ;'
+        cmd11 = 'create stable in_stable_2(ts timestamp,in_int int,in_small smallint , in_big bigint) tags (tin_int int,tin_small smallint , tin_big bigint) ;'
+        cmd12 = 'create table in_int_smallint_bigint_1 using in_stable_2 tags(\'2147483647\',\'-32767\',\'0\') ; '
+        cmd13 = 'create table in_int_smallint_bigint_2 using in_stable_2 tags(\'-2147483647\',\'0\',\'9223372036854775807\') ; '
+        cmd14 = 'create table in_int_smallint_bigint_3 using in_stable_2 tags(\'0\',\'32767\',\'-9223372036854775807\') ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)
+        tdLog.info(cmd10)
+        tdSql.execute(cmd10)        
+        tdLog.info(cmd11)
+        tdSql.execute(cmd11)
+        tdLog.info(cmd12)
+        tdSql.execute(cmd12)
+        tdLog.info(cmd13)
+        tdSql.execute(cmd13)
+        tdLog.info(cmd14)
+        tdSql.execute(cmd14)        
+
+        tdLog.info("=============== step2.2,insert stable right data and check in function") 
+        cmd1 = 'insert into in_int_smallint_bigint_1 values(now,\'2147483647\',\'-32767\',\'0\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from in_stable_2 where in_int in (2147483647) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'2147483647')  
+        tdSql.checkData(0,5,'-32767') 
+        tdSql.checkData(0,6,'0')  
+        tdSql.query('select * from in_stable_2 where in_small in (-32767) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'2147483647')  
+        tdSql.checkData(0,5,'-32767') 
+        tdSql.checkData(0,6,'0')    
+        tdSql.query('select * from in_stable_2 where in_big in (0) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'2147483647')  
+        tdSql.checkData(0,5,'-32767') 
+        tdSql.checkData(0,6,'0')  
+        tdSql.query('select * from in_stable_2 where tin_int in (2147483647) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'2147483647')  
+        tdSql.checkData(0,5,'-32767') 
+        tdSql.checkData(0,6,'0')  
+        tdSql.query('select * from in_stable_2 where tin_small in (-32767) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'2147483647')  
+        tdSql.checkData(0,5,'-32767') 
+        tdSql.checkData(0,6,'0')    
+        tdSql.query('select * from in_stable_2 where tin_big in (0) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'2147483647')  
+        tdSql.checkData(0,5,'-32767') 
+        tdSql.checkData(0,6,'0')     
+        tdSql.query('select * from in_int_smallint_bigint_1 where in_int in (2147483647) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0') 
+        tdSql.query('select * from in_int_smallint_bigint_1 where in_small in (-32767) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0')  
+        tdSql.query('select * from in_int_smallint_bigint_1 where in_big in (0) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0')      
+
+        cmd2 = 'insert into in_int_smallint_bigint_2 values(now,\'-2147483647\',\'0\',\'9223372036854775807\') ;'
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)         
+        tdSql.query('select * from in_stable_2 where in_int in (-2147483647) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807') 
+        tdSql.checkData(0,4,'-2147483647')  
+        tdSql.checkData(0,5,'0') 
+        tdSql.checkData(0,6,'9223372036854775807')  
+        tdSql.query('select * from in_stable_2 where in_small in (0) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807') 
+        tdSql.checkData(0,4,'-2147483647')  
+        tdSql.checkData(0,5,'0') 
+        tdSql.checkData(0,6,'9223372036854775807')     
+        tdSql.query('select * from in_stable_2 where in_big in (9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807') 
+        tdSql.checkData(0,4,'-2147483647')  
+        tdSql.checkData(0,5,'0') 
+        tdSql.checkData(0,6,'9223372036854775807')    
+        tdSql.query('select * from in_stable_2 where tin_int in (-2147483647) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807') 
+        tdSql.checkData(0,4,'-2147483647')  
+        tdSql.checkData(0,5,'0') 
+        tdSql.checkData(0,6,'9223372036854775807') 
+        tdSql.query('select * from in_stable_2 where tin_small in (0) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807') 
+        tdSql.checkData(0,4,'-2147483647')  
+        tdSql.checkData(0,5,'0') 
+        tdSql.checkData(0,6,'9223372036854775807')   
+        tdSql.query('select * from in_stable_2 where tin_big in (9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807') 
+        tdSql.checkData(0,4,'-2147483647')  
+        tdSql.checkData(0,5,'0') 
+        tdSql.checkData(0,6,'9223372036854775807')  
+        tdSql.query('select * from in_int_smallint_bigint_2 where in_int in (-2147483647) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807')  
+        tdSql.query('select * from in_int_smallint_bigint_2 where in_small in (0) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807')     
+        tdSql.query('select * from in_int_smallint_bigint_2 where in_big in (9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807')             
+
+        cmd3 = 'insert into in_int_smallint_bigint_3 values(now,\'0\',\'32767\',\'-9223372036854775807\') ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)         
+        tdSql.query('select * from in_stable_2 where in_int in (0) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.checkData(0,5,'32767') 
+        tdSql.checkData(0,6,'-9223372036854775807')  
+        tdSql.query('select * from in_stable_2 where in_small in (32767) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.checkData(0,5,'32767') 
+        tdSql.checkData(0,6,'-9223372036854775807')    
+        tdSql.query('select * from in_stable_2 where in_big in (-9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.checkData(0,5,'32767') 
+        tdSql.checkData(0,6,'-9223372036854775807')    
+        tdSql.query('select * from in_stable_2 where tin_int in (0) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.checkData(0,5,'32767') 
+        tdSql.checkData(0,6,'-9223372036854775807')  
+        tdSql.query('select * from in_stable_2 where tin_small in (32767) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.checkData(0,5,'32767') 
+        tdSql.checkData(0,6,'-9223372036854775807')    
+        tdSql.query('select * from in_stable_2 where tin_big in (-9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.checkData(0,5,'32767') 
+        tdSql.checkData(0,6,'-9223372036854775807')  
+        tdSql.query('select * from in_int_smallint_bigint_3 where in_int in (0) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807') 
+        tdSql.query('select * from in_int_smallint_bigint_3 where in_small in (32767) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807')   
+        tdSql.query('select * from in_int_smallint_bigint_3 where in_big in (-9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807')       
+
+
+        tdLog.info("=============== step2.3,drop normal table && create table") 
+        cmd1 = 'drop table if exists normal_int_smallint_bigint_1 ;'
+        cmd2 = 'create table normal_int_smallint_bigint_1 (ts timestamp,in_int int,in_small smallint , in_big bigint) ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+      
+
+        tdLog.info("=============== step2.4,insert normal table right data and check in function") 
+        cmd1 = 'insert into normal_int_smallint_bigint_1 values(now,\'2147483647\',\'-32767\',\'0\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_int in (2147483647) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0')             
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_small in (-32767) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0')  
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_big in (0) order by ts desc')
+        tdSql.checkData(0,1,'2147483647') 
+        tdSql.checkData(0,2,'-32767')
+        tdSql.checkData(0,3,'0')        
+
+        cmd2 = 'insert into normal_int_smallint_bigint_1 values(now,\'-2147483647\',\'0\',\'9223372036854775807\') ;'
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)         
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_int in (-2147483647) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807')             
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_small in (0) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807')  
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_big in (9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'-2147483647') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'9223372036854775807')          
+
+        cmd3 = 'insert into normal_int_smallint_bigint_1 values(now,\'0\',\'32767\',\'-9223372036854775807\') ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)         
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_int in (0) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807')             
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_small in (32767) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807')  
+        tdSql.query('select * from normal_int_smallint_bigint_1 where in_big in (-9223372036854775807) order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'32767')
+        tdSql.checkData(0,3,'-9223372036854775807')   
+
+         
+        tdLog.info("=============== step3,check binary and nchar data type")    
+
+        tdLog.info("=============== step3.1,drop table && create table")    
+        cmd1 = 'drop table if exists in_binary_nchar_1 ;'
+        cmd2 = 'drop table if exists in_binary_nchar_2 ;'
+        cmd3 = 'drop table if exists in_binary_nchar_3 ;'
+        cmd10 = 'drop table if exists in_stable_3 ;'
+        cmd11 = 'create stable in_stable_3(ts timestamp,in_binary binary(8),in_nchar nchar(12)) tags (tin_binary binary(16),tin_nchar nchar(20)) ;'
+        cmd12 = 'create table in_binary_nchar_1 using in_stable_3 tags(\'0\',\'0\') ; '
+        cmd13 = 'create table in_binary_nchar_2 using in_stable_3 tags(\'TDengine\',\'北京涛思数据科技有限公司\') ; '
+        cmd14 = 'create table in_binary_nchar_3 using in_stable_3 tags(\'taosdataTDengine\',\'北京涛思数据科技有限公司TDengine\') ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)
+        tdLog.info(cmd10)
+        tdSql.execute(cmd10)        
+        tdLog.info(cmd11)
+        tdSql.execute(cmd11)
+        tdLog.info(cmd12)
+        tdSql.execute(cmd12)
+        tdLog.info(cmd13)
+        tdSql.execute(cmd13)
+        tdLog.info(cmd14)
+        tdSql.execute(cmd14)        
+
+        tdLog.info("=============== step3.2,insert stable right data and check in function") 
+        cmd1 = 'insert into in_binary_nchar_1 values(now,\'0\',\'0\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from in_stable_3 where in_binary in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.query('select * from in_stable_3 where in_nchar in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'0')     
+        tdSql.query('select * from in_stable_3 where tin_binary in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'0')  
+        tdSql.query('select * from in_stable_3 where tin_nchar in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')
+        tdSql.checkData(0,3,'0') 
+        tdSql.checkData(0,4,'0') 
+        tdSql.query('select * from in_binary_nchar_1 where in_binary in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')  
+        tdSql.query('select * from in_binary_nchar_1 where in_nchar in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')        
+
+        cmd2 = 'insert into in_binary_nchar_2 values(now,\'TAOS\',\'涛思数据TAOSdata\') ;'
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)         
+        tdSql.query('select * from in_stable_3 where in_binary in (\'TAOS\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')
+        tdSql.checkData(0,3,'TDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司')  
+        tdSql.query('select * from in_stable_3 where in_nchar in (\'涛思数据TAOSdata\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')
+        tdSql.checkData(0,3,'TDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司')      
+        tdSql.query('select * from in_stable_3 where tin_binary in (\'TDengine\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')
+        tdSql.checkData(0,3,'TDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司')  
+        tdSql.query('select * from in_stable_3 where tin_nchar in (\'北京涛思数据科技有限公司\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')
+        tdSql.checkData(0,3,'TDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司') 
+        tdSql.query('select * from in_binary_nchar_2 where in_binary in (\'TAOS\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata') 
+        tdSql.query('select * from in_binary_nchar_2 where in_nchar in (\'涛思数据TAOSdata\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')     
+
+        cmd3 = 'insert into in_binary_nchar_3 values(now,\'TDengine\',\'北京涛思数据科技有限公司\') ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)         
+        tdSql.query('select * from in_stable_3 where in_binary in (\'TDengine\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司')
+        tdSql.checkData(0,3,'taosdataTDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司TDengine')  
+        tdSql.query('select * from in_stable_3 where in_nchar in (\'北京涛思数据科技有限公司\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司')
+        tdSql.checkData(0,3,'taosdataTDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司TDengine')     
+        tdSql.query('select * from in_stable_3 where tin_binary in (\'taosdataTDengine\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司')
+        tdSql.checkData(0,3,'taosdataTDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司TDengine')   
+        tdSql.query('select * from in_stable_3 where tin_nchar in (\'北京涛思数据科技有限公司TDengine\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司')
+        tdSql.checkData(0,3,'taosdataTDengine') 
+        tdSql.checkData(0,4,'北京涛思数据科技有限公司TDengine') 
+        tdSql.query('select * from in_binary_nchar_3 where in_binary in (\'TDengine\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司') 
+        tdSql.query('select * from in_binary_nchar_3 where in_nchar in (\'北京涛思数据科技有限公司\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司') 
+
+
+        tdLog.info("=============== step3.3,drop normal table && create table") 
+        cmd1 = 'drop table if exists normal_in_binary_nchar_1 ;'
+        cmd2 = 'create table normal_in_binary_nchar_1 (ts timestamp,in_binary binary(8),in_nchar nchar(12)) ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+      
+
+        tdLog.info("=============== step3.4,insert normal table right data and check in function") 
+        cmd1 = 'insert into normal_in_binary_nchar_1 values(now,\'0\',\'0\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from normal_in_binary_nchar_1 where in_binary in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')         
+        tdSql.query('select * from normal_in_binary_nchar_1 where in_nchar in (\'0\') order by ts desc')
+        tdSql.checkData(0,1,'0') 
+        tdSql.checkData(0,2,'0')  
+
+        cmd2 = 'insert into normal_in_binary_nchar_1 values(now,\'TAOS\',\'涛思数据TAOSdata\') ;'
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)         
+        tdSql.query('select * from normal_in_binary_nchar_1 where in_binary in (\'TAOS\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')         
+        tdSql.query('select * from normal_in_binary_nchar_1 where in_nchar in (\'涛思数据TAOSdata\') order by ts desc')
+        tdSql.checkData(0,1,'TAOS') 
+        tdSql.checkData(0,2,'涛思数据TAOSdata')       
+
+        cmd3 = 'insert into normal_in_binary_nchar_1 values(now,\'TDengine\',\'北京涛思数据科技有限公司\') ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)         
+        tdSql.query('select * from normal_in_binary_nchar_1 where in_binary in (\'TDengine\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司')         
+        tdSql.query('select * from normal_in_binary_nchar_1 where in_nchar in (\'北京涛思数据科技有限公司\') order by ts desc')
+        tdSql.checkData(0,1,'TDengine') 
+        tdSql.checkData(0,2,'北京涛思数据科技有限公司')   
+
+        tdLog.info("=============== step4,check float and double data type,not support")    
+
+        tdLog.info("=============== step4.1,drop table && create table")    
+        cmd1 = 'drop table if exists in_float_double_1 ;'
+        cmd10 = 'drop table if exists in_stable_4 ;'
+        cmd11 = 'create stable in_stable_4(ts timestamp,in_float float,in_double double) tags (tin_float float,tin_double double) ;'
+        cmd12 = 'create table in_float_double_1 using in_stable_4 tags(\'666\',\'88888\') ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd10)
+        tdSql.execute(cmd10)        
+        tdLog.info(cmd11)
+        tdSql.execute(cmd11)
+        tdLog.info(cmd12)
+        tdSql.execute(cmd12)    
+
+        tdLog.info("=============== step4.2,insert stable right data and check in function") 
+        cmd1 = 'insert into in_float_double_1 values(now,\'888\',\'66666\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        
+        cmd2 = 'select * from in_stable_4 where in_float in (\'888\');'
+        tdLog.info(cmd2)
+        tdSql.error(cmd2)
+        try:
+            tdSql.execute(cmd2)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+        
+        cmd3 = 'select * from in_stable_4 where in_double in (\'66666\');'
+        tdLog.info(cmd3)
+        tdSql.error(cmd3)
+        try:
+            tdSql.execute(cmd3)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+
+        cmd4 = 'select * from in_stable_4 where tin_float in (\'666\');'
+        tdLog.info(cmd4)
+        tdSql.error(cmd4)
+        try:
+            tdSql.execute(cmd4)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+        
+        cmd5 = 'select * from in_stable_4 where tin_double in (\'88888\');'
+        tdLog.info(cmd5)
+        tdSql.error(cmd5)
+        try:
+            tdSql.execute(cmd5)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+
+        cmd6 = 'select * from in_float_double_1 where in_float in (\'888\');'
+        tdLog.info(cmd6)
+        tdSql.error(cmd6)
+        try:
+            tdSql.execute(cmd6)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+        
+        cmd7 = 'select * from in_float_double_1 where in_double in (\'66666\');'
+        tdLog.info(cmd7)
+        tdSql.error(cmd7)
+        try:
+            tdSql.execute(cmd7)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+
+              
+
+        tdLog.info("=============== step4.3,drop normal table && create table") 
+        cmd1 = 'drop table if exists normal_in_float_double_1 ;'
+        cmd2 = 'create table normal_in_float_double_1 (ts timestamp,in_float float,in_double double) ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+      
+
+        tdLog.info("=============== step4.4,insert normal table right data and check in function") 
+        cmd1 = 'insert into normal_in_float_double_1 values(now,\'888\',\'666666\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)   
+
+        cmd2 = 'select * from normal_in_float_double_1 where in_float in (\'888\');'
+        tdLog.info(cmd2)
+        tdSql.error(cmd2)
+        try:
+            tdSql.execute(cmd2)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+        
+        cmd3 = 'select * from normal_in_float_double_1 where in_double in (\'66666\');'
+        tdLog.info(cmd3)
+        tdSql.error(cmd3)
+        try:
+            tdSql.execute(cmd3)
+            tdLog.exit("invalid operation: not supported filter condition")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: not supported filter condition") 
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/pytest/insert/modify_column.py

@@ -0,0 +1,382 @@
+###################################################################
+#           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 datetime
+
+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(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        # test case for https://jira.taosdata.com:18080/browse/TD-4541
+
+        tdLog.info("=============== step1,check normal table")    
+
+        tdLog.info("=============== step1.1,drop table && create table")    
+        cmd1 = 'drop table if exists length11 ;'
+        cmd2 = 'create table length11 (ts timestamp,lengthbia binary(10),lengthnchar nchar(20));'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+
+        tdLog.info("=============== step1.2,insert table right data") 
+        cmd1 = 'insert into length11 values(now,\'aaaaaaaaaa\',\'bbbbbbbbbbbbbbbbbbbb\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from length11 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb')
+
+        tdLog.info("=============== step1.3,insert table wrong data") 
+        cmd1 = 'insert into length11 values(now,\'aaaaaaaaaa1\',\'bbbbbbbbbbbbbbbbbbbb1\') ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("string data overflow")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("insert wrong data error catched")      
+        tdSql.query('select * from length11 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb')
+
+        tdLog.info("=============== step1.4,modify columu length ") 
+        cmd1 = 'alter table length11 modify column lengthbia binary(10) ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one")   
+
+        cmd2 = 'alter table length11 modify column lengthnchar nchar(20);'
+        tdLog.info(cmd2)
+        tdSql.error(cmd2)
+        try:
+            tdSql.execute(cmd2)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one") 
+
+        cmd3 = 'alter table length11 modify column lengthbia binary(11) ;'
+        cmd4 = 'describe length11 ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3) 
+        tdLog.info(cmd4)
+        tdSql.execute(cmd4) 
+        tdSql.query('describe length11 ;')
+        tdSql.checkData(1,2,11) 
+
+        cmd5 = 'alter table length11 modify column lengthnchar nchar(21);'
+        cmd6 = 'describe length11 ;'
+        tdLog.info(cmd5)
+        tdSql.execute(cmd5) 
+        tdLog.info(cmd6)
+        tdSql.execute(cmd6) 
+        tdSql.query('describe length11 ;')
+        tdSql.checkData(2,2,21) 
+
+        tdSql.query('select * from length11 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb')
+
+
+        tdLog.info("=============== step1.5,insert table right data") 
+        cmd1 = 'insert into length11 values(now,\'aaaaaaaaaa1\',\'bbbbbbbbbbbbbbbbbbbb1\') ;'
+        tdLog.info(cmd1)    
+        tdSql.execute(cmd1)  
+        tdSql.query('select * from length11 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+
+
+
+
+        tdLog.info("=============== step2,check stable table and tag")    
+
+        tdLog.info("=============== step2.1,drop table && create table")    
+        cmd1 = 'drop table if exists length1 ;'
+        cmd2 = 'drop table if exists length2 ;'
+        cmd3 = 'drop table if exists length2 ;'
+        cmd4 = 'drop table if exists lengthsta1 ;'
+        cmd5 = 'create stable lengthsta1(ts timestamp,lengthbia binary(10),lengthnchar nchar(20)) tags (tlengthbia binary(15),tlengthnchar nchar(25)) ;'
+        cmd6 = 'create table length1 using lengthsta1 tags(\'aaaaabbbbbaaaaa\',\'bbbbbaaaaabbbbbaaaaabbbbb\') ; '
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)
+        tdLog.info(cmd2)
+        tdSql.execute(cmd2)
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3)
+        tdLog.info(cmd4)
+        tdSql.execute(cmd4)
+        tdLog.info(cmd5)
+        tdSql.execute(cmd5)
+        tdLog.info(cmd6)
+        tdSql.execute(cmd6)
+
+        tdLog.info("=============== step2.2,insert table right data") 
+        cmd1 = 'insert into length1 values(now,\'aaaaaaaaaa\',\'bbbbbbbbbbbbbbbbbbbb\') ;'
+        tdLog.info(cmd1)
+        tdSql.execute(cmd1)         
+        tdSql.query('select * from length1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb')
+
+        tdLog.info("=============== step2.3,insert table wrong data") 
+        cmd1 = 'insert into length1 values(now,\'aaaaaaaaaa1\',\'bbbbbbbbbbbbbbbbbbbb1\') ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("string data overflow")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("insert wrong data error catched")      
+        tdSql.query('select * from length1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb')
+
+        tdLog.info("=============== step2.4,modify columu length ") 
+        cmd0 = 'alter table length1 modify column lengthbia binary(10) ;'
+        tdLog.info(cmd0)
+        tdSql.error(cmd0)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("invalid operation: column can only be modified by super table")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: column can only be modified by super table")  
+
+        cmd1 = 'alter table lengthsta1 modify column lengthbia binary(10) ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one")   
+
+        cmd2 = 'alter table lengthsta1 modify column lengthnchar nchar(20);'
+        tdLog.info(cmd2)
+        tdSql.error(cmd2)
+        try:
+            tdSql.execute(cmd2)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one") 
+
+        cmd3 = 'alter table lengthsta1 modify column lengthbia binary(11) ;'
+        cmd4 = 'describe lengthsta1 ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3) 
+        tdLog.info(cmd4)
+        tdSql.execute(cmd4) 
+        tdSql.query('describe length1 ;')
+        tdSql.checkData(1,2,11) 
+
+        cmd5 = 'alter table lengthsta1 modify column lengthnchar nchar(21);'
+        cmd6 = 'describe lengthsta1 ;'
+        tdLog.info(cmd5)
+        tdSql.execute(cmd5) 
+        tdLog.info(cmd6)
+        tdSql.execute(cmd6) 
+        tdSql.query('describe lengthsta1 ;')
+        tdSql.checkData(2,2,21) 
+
+        tdSql.query('select * from lengthsta1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb')
+
+
+        tdLog.info("=============== step2.5,insert table right data") 
+        cmd1 = 'insert into length1 values(now,\'aaaaaaaaaa1\',\'bbbbbbbbbbbbbbbbbbbb1\') ;'
+        tdLog.info(cmd1)    
+        tdSql.execute(cmd1)  
+        tdSql.query('select * from length1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+
+
+
+        tdLog.info("=============== step2.6,create table wrong tag") 
+        cmd1 = 'create table length2 using lengthsta1 tags(\'aaaaabbbbbaaaaa1\',\'bbbbbaaaaabbbbbaaaaabbbbb1\')  ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("invalid operation: tag value too long")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("invalid operation: tag value too long")      
+        tdSql.query('select * from lengthsta1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+
+        tdLog.info("=============== step2.7,modify tag columu length ")  
+        cmd1 = 'alter table lengthsta1 modify tag tlengthbia binary(15) ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one")   
+
+        cmd2 = 'alter table lengthsta1 modify tag tlengthnchar nchar(25);'
+        tdLog.info(cmd2)
+        tdSql.error(cmd2)
+        try:
+            tdSql.execute(cmd2)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one") 
+
+        cmd3 = 'alter table lengthsta1 modify tag tlengthbia binary(16) ;'
+        cmd4 = 'describe lengthsta1 ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3) 
+        tdLog.info(cmd4)
+        tdSql.execute(cmd4) 
+        tdSql.query('describe lengthsta1 ;')
+        tdSql.checkData(3,2,16) 
+
+        cmd5 = 'alter table lengthsta1 modify tag tlengthnchar nchar(26);'
+        cmd6 = 'describe lengthsta1 ;'
+        tdLog.info(cmd5)
+        tdSql.execute(cmd5) 
+        tdLog.info(cmd6)
+        tdSql.execute(cmd6) 
+        tdSql.query('describe lengthsta1 ;')
+        tdSql.checkData(4,2,26) 
+
+        tdSql.query('select * from lengthsta1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+        tdSql.checkData(0,3,'aaaaabbbbbaaaaa') 
+        tdSql.checkData(0,4,'bbbbbaaaaabbbbbaaaaabbbbb')        
+
+
+        tdLog.info("=============== step2.8,creat tag right data and insert data") 
+        cmd1 = 'create table length2 using lengthsta1 tags(\'aaaaabbbbbaaaaa1\',\'bbbbbaaaaabbbbbaaaaabbbbb1\')  ;'
+        tdLog.info(cmd1)    
+        tdSql.execute(cmd1)  
+        tdSql.query('describe length2 ;')
+        tdSql.checkData(3,2,16) 
+        tdSql.checkData(4,2,26) 
+
+        cmd2 = 'insert into length2 values(now,\'aaaaaaaaaa1\',\'bbbbbbbbbbbbbbbbbbbb1\') ;'
+        tdLog.info(cmd2)    
+        tdSql.execute(cmd2)  
+        tdSql.query('select * from length2 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+        tdSql.query('select * from lengthsta1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+        tdSql.checkData(0,3,'aaaaabbbbbaaaaa1') 
+        tdSql.checkData(0,4,'bbbbbaaaaabbbbbaaaaabbbbb1')  
+
+
+        tdLog.info("=============== step2.9,modify tag columu length again ")  
+        cmd1 = 'alter table lengthsta1 modify tag tlengthbia binary(16) ;'
+        tdLog.info(cmd1)
+        tdSql.error(cmd1)
+        try:
+            tdSql.execute(cmd1)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one")   
+
+        cmd2 = 'alter table lengthsta1 modify tag tlengthnchar nchar(26);'
+        tdLog.info(cmd2)
+        tdSql.error(cmd2)
+        try:
+            tdSql.execute(cmd2)
+            tdLog.exit("new column length should be bigger than old one")
+        except Exception as e:
+            tdLog.info(repr(e))
+            tdLog.info("new column length should be bigger than old one") 
+
+        cmd3 = 'alter table lengthsta1 modify tag tlengthbia binary(20) ;'
+        cmd4 = 'describe lengthsta1 ;'
+        tdLog.info(cmd3)
+        tdSql.execute(cmd3) 
+        tdLog.info(cmd4)
+        tdSql.execute(cmd4) 
+        tdSql.query('describe lengthsta1 ;')
+        tdSql.checkData(3,2,20) 
+
+        cmd5 = 'alter table lengthsta1 modify tag tlengthnchar nchar(30);'
+        cmd6 = 'describe lengthsta1 ;'
+        tdLog.info(cmd5)
+        tdSql.execute(cmd5) 
+        tdLog.info(cmd6)
+        tdSql.execute(cmd6) 
+        tdSql.query('describe lengthsta1 ;')
+        tdSql.checkData(4,2,30) 
+
+        tdSql.query('select * from lengthsta1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+        tdSql.checkData(0,3,'aaaaabbbbbaaaaa1') 
+        tdSql.checkData(0,4,'bbbbbaaaaabbbbbaaaaabbbbb1')        
+
+
+        tdLog.info("=============== step2.10,creat tag right data and insert data again") 
+        cmd1 = 'create table length3 using lengthsta1 tags(\'aaaaabbbbbaaaaabbbbb\',\'bbbbbaaaaabbbbbaaaaabbbbbaaaaa\')  ;'
+        tdLog.info(cmd1)    
+        tdSql.execute(cmd1)  
+        tdSql.query('describe length3 ;')
+        tdSql.checkData(3,2,20) 
+        tdSql.checkData(4,2,30) 
+
+        cmd2 = 'insert into length3 values(now,\'aaaaaaaaaa1\',\'bbbbbbbbbbbbbbbbbbbb1\') ;'
+        tdLog.info(cmd2)    
+        tdSql.execute(cmd2)  
+        tdSql.query('select * from length3 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+        tdSql.query('select * from lengthsta1 order by ts desc')
+        tdSql.checkData(0,1,'aaaaaaaaaa1') 
+        tdSql.checkData(0,2,'bbbbbbbbbbbbbbbbbbbb1')
+        tdSql.checkData(0,3,'aaaaabbbbbaaaaabbbbb') 
+        tdSql.checkData(0,4,'bbbbbaaaaabbbbbaaaaabbbbbaaaaa')  
+
+
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())

tests/pytest/util/sql.py

@@ -18,6 +18,7 @@ import datetime
 import inspect
 import psutil
 import shutil
+import pandas as pd
 from util.log import *
 
 
@@ -136,7 +137,14 @@ class TDSql:
     def checkData(self, row, col, data):
         self.checkRowCol(row, col)
         if self.queryResult[row][col] != data:
-            if self.cursor.istype(col, "TIMESTAMP") and self.queryResult[row][col] == datetime.datetime.fromisoformat(data):
+            if self.cursor.istype(col, "TIMESTAMP"):
+                # suppose user want to check nanosecond timestamp if a longer data passed
+                if (len(data) >= 28):
+                    if pd.to_datetime(self.queryResult[row][col]) == pd.to_datetime(data):
+                        tdLog.info("sql:%s, row:%d col:%d data:%d == expect:%s" %
+                            (self.sql, row, col, self.queryResult[row][col], data))
+                else:
+                    if self.queryResult[row][col] == datetime.datetime.fromisoformat(data):
                         tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                             (self.sql, row, col, self.queryResult[row][col], data))
                 return

tests/script/general/http/grafana_bug.sim

@@ -20,17 +20,22 @@ sql use db
 sql create table tb (ts timestamp, val int, val1 int, val2 int)
 sql create table tb2 (ts timestamp, val int, val1 int, val2 int)
 sql create table t2 (ts timestamp, val int)
+sql create table tb3 (ts timestamp, val int, val1 int, val2 int)
 
 sql insert into tb values('2020-01-01 00:00:00.000', 1, 11, 21)
 sql insert into tb values('2020-01-02 00:00:00.000', 1, 12, 22)
 sql insert into tb values('2020-01-03 00:00:00.000', 2, 13, 23)
 sql insert into tb values('2020-01-04 00:00:00.000', 2, 14, 24)
 
+
 sql insert into tb2 values('2020-01-01 00:00:00.000', 21, 211, 221)
 sql insert into tb2 values('2020-01-02 00:00:00.000', 21, 212, 222)
 sql insert into tb2 values('2020-01-03 00:00:00.000', 22, 213, 223)
 sql insert into tb2 values('2020-01-04 00:00:00.000', 22, 214, 224)
 
+
+sql insert into tb3 values('2020-01-01 00:00:00.000', NULL, NULL, NULL)
+sql insert into tb3 values('2020-01-02 00:00:00.000', NULL, NULL, NULL)
 print ===============  step1 - one query, 1 column, with timestamp
 
 system_content curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d '[ {"refId":"A","alias":"","sql":"select ts from db.tb where ts >= 1577980800000 "} ]' 127.0.0.1:7111/grafana/query
@@ -235,4 +240,11 @@ if $system_content != @[{"refId":"B","target":"BB{val2:223,}","datapoints":[[213
   return -1
 endi
 
+print ===============  step26 - 2 column, no timestamp, NULL
+system_content curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d '[ {"refId":"A","alias":"","sql":"select * from db.tb3 "} ]' 127.0.0.1:7111/grafana/query
+print step1-> $system_content
+if $system_content != @[{"refId":"A","target":"{val1:nil, val2:nil}","datapoints":[[null,1577808000000],[null,1577894400000]]}]@ then
+  return -1
+endi
+
 system sh/exec.sh -n dnode1 -s stop -x SIGINT

tests/script/general/parser/function.sim

@@ -817,6 +817,9 @@ print ====================> TODO stddev + normal column filter
 
 
 print ====================> irate
+sql_error select irate(f1) from st1;
+sql select irate(f1) from  st1 group by tbname;
+
 sql select irate(k) from t1
 if $rows != 1 then
   return -1
@@ -1073,6 +1076,12 @@ sql insert into t0 values('2020-1-1 1:3:9', 9);
 sql insert into t0 values('2020-1-1 1:4:10', 10);
 
 sql insert into t1 values('2020-1-1 1:1:2', 2);
+print ===========================>td-4739
+sql select diff(val) from (select derivative(k, 1s, 0) val from t1);
+if $rows != 0 then
+  return -1
+endi
+
 sql insert into t1 values('2020-1-1 1:1:4', 20);
 sql insert into t1 values('2020-1-1 1:1:6', 200);
 sql insert into t1 values('2020-1-1 1:1:8', 2000);