Merge branch 'develop' of github.com:taosdata/TDengine into dev/chr

packaging/check_package.sh

+#!/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
\ No newline at end of file

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/src/tscPrepare.c

@@ -906,7 +906,7 @@ static int insertStmtBindParam(STscStmt* stmt, TAOS_BIND* bind) {
 
     int code = doBindParam(pBlock, data, param, &bind[param->idx], 1);
     if (code != TSDB_CODE_SUCCESS) {
-      tscDebug("0x%"PRIx64" bind column %d: type mismatch or invalid", pStmt->pSql->self, param->idx);      
+      tscDebug("0x%"PRIx64" bind column %d: type mismatch or invalid", pStmt->pSql->self, param->idx);
       return invalidOperationMsg(tscGetErrorMsgPayload(&stmt->pSql->cmd), "bind column type mismatch or invalid");
     }
   }
@@ -1256,7 +1256,7 @@ int stmtParseInsertTbTags(SSqlObj* pSql, STscStmt* pStmt) {
       return TSDB_CODE_SUCCESS;
     }
 
-    if (sToken.n <= 0 || sToken.type != TK_USING) {      
+    if (sToken.n <= 0 || sToken.type != TK_USING) {
       tscError("keywords USING is expected, sql:%s", pCmd->insertParam.sql);
       return tscSQLSyntaxErrMsg(pCmd->payload, "keywords USING is expected", sToken.z ? sToken.z : pCmd->insertParam.sql);
     }
@@ -1403,7 +1403,7 @@ int stmtGenInsertStatement(SSqlObj* pSql, STscStmt* pStmt, const char* name, TAO
   } else {
     tfree(pSql->sqlstr);
   }
-  
+
   pSql->sqlstr = str;
 
   return TSDB_CODE_SUCCESS;
@@ -1415,7 +1415,7 @@ int stmtGenInsertStatement(SSqlObj* pSql, STscStmt* pStmt, const char* name, TAO
 TAOS_STMT* taos_stmt_init(TAOS* taos) {
   STscObj* pObj = (STscObj*)taos;
   STscStmt* pStmt = NULL;
-  
+
   if (pObj == NULL || pObj->signature != pObj) {
     terrno = TSDB_CODE_TSC_DISCONNECTED;
     tscError("connection disconnected");
@@ -1469,7 +1469,7 @@ int taos_stmt_prepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
     tscError("sql is NULL");
     STMT_RET(invalidOperationMsg(tscGetErrorMsgPayload(&pStmt->pSql->cmd), "sql is NULL"));
   }
-  
+
   if (pStmt->last != STMT_INIT) {
     tscError("prepare status error, last:%d", pStmt->last);
     STMT_RET(invalidOperationMsg(tscGetErrorMsgPayload(&pStmt->pSql->cmd), "prepare status error"));

src/client/src/tscSQLParser.c

@@ -147,57 +147,57 @@ int16_t getNewResColId(SSqlCmd* pCmd) {
   return pCmd->resColumnId--;
 }
 
-// serialize expr in exprlist to binary 
+// serialize expr in exprlist to binary
 // formate  "type | size | value"
 bool serializeExprListToVariant(SArray* pList, tVariant **dst, int16_t colType) {
   bool ret = false;
   if (!pList || pList->size <= 0 || colType < 0) {
     return ret;
-  }  
-  
-  tSqlExprItem* item = (tSqlExprItem *)taosArrayGet(pList, 0); 
-  int32_t firstTokenType = item->pNode->token.type; 
+  }
+
+  tSqlExprItem* item = (tSqlExprItem *)taosArrayGet(pList, 0);
+  int32_t firstTokenType = item->pNode->token.type;
   int32_t type  = firstTokenType;
 
-  //nchar to binary and  
-  toTSDBType(type);  
+  //nchar to binary and
+  toTSDBType(type);
   if (type != colType && (type != TSDB_DATA_TYPE_BINARY || colType != TSDB_DATA_TYPE_NCHAR)) {
-    return false;  
-  }    
-  type = colType; 
- 
+    return false;
+  }
+  type = colType;
+
   SBufferWriter bw = tbufInitWriter( NULL, false );
   tbufEnsureCapacity(&bw, 512);
 
   int32_t size = (int32_t)(pList->size);
-  tbufWriteUint32(&bw, type);  
+  tbufWriteUint32(&bw, type);
   tbufWriteInt32(&bw,  size);
-   
+
   for (int32_t i = 0; i < size; i++) {
     tSqlExpr* pSub = ((tSqlExprItem*)(taosArrayGet(pList, i)))->pNode;
 
     // check all the token type in expr list same or not
     if (firstTokenType != pSub->token.type) {
       break;
-    }  
+    }
 
-    toTSDBType(pSub->token.type);  
+    toTSDBType(pSub->token.type);
 
-    tVariant var;  
-    tVariantCreate(&var, &pSub->token); 
-    if (type == TSDB_DATA_TYPE_BOOL || type == TSDB_DATA_TYPE_TINYINT || type == TSDB_DATA_TYPE_SMALLINT 
+    tVariant var;
+    tVariantCreate(&var, &pSub->token);
+    if (type == TSDB_DATA_TYPE_BOOL || type == TSDB_DATA_TYPE_TINYINT || type == TSDB_DATA_TYPE_SMALLINT
          || type == TSDB_DATA_TYPE_BIGINT || type == TSDB_DATA_TYPE_INT) {
-      tbufWriteInt64(&bw, var.i64);        
+      tbufWriteInt64(&bw, var.i64);
     } else if (type == TSDB_DATA_TYPE_DOUBLE || type == TSDB_DATA_TYPE_FLOAT) {
       tbufWriteDouble(&bw, var.dKey);
     } else if (type == TSDB_DATA_TYPE_BINARY){
       tbufWriteBinary(&bw, var.pz, var.nLen);
     } else if (type == TSDB_DATA_TYPE_NCHAR) {
-      char   *buf = (char *)calloc(1, (var.nLen + 1)*TSDB_NCHAR_SIZE);       
+      char   *buf = (char *)calloc(1, (var.nLen + 1)*TSDB_NCHAR_SIZE);
       if (tVariantDump(&var, buf, type, false) != TSDB_CODE_SUCCESS) {
         free(buf);
         tVariantDestroy(&var);
-        break;  
+        break;
       }
       tbufWriteBinary(&bw, buf, twcslen((wchar_t *)buf) * TSDB_NCHAR_SIZE);
       free(buf);
@@ -209,21 +209,21 @@ bool serializeExprListToVariant(SArray* pList, tVariant **dst, int16_t colType)
 
   if (ret == true) {
     if ((*dst = calloc(1, sizeof(tVariant))) != NULL) {
-      tVariantCreateFromBinary(*dst, tbufGetData(&bw, false), tbufTell(&bw), TSDB_DATA_TYPE_BINARY);    
+      tVariantCreateFromBinary(*dst, tbufGetData(&bw, false), tbufTell(&bw), TSDB_DATA_TYPE_BINARY);
     } else {
       ret = false;
     }
   }
-  tbufCloseWriter(&bw); 
+  tbufCloseWriter(&bw);
   return ret;
 }
 
 static int32_t validateParamOfRelationIn(tVariant *pVar, int32_t colType) {
   if (pVar->nType != TSDB_DATA_TYPE_BINARY) {
-    return -1; 
+    return -1;
   }
-  SBufferReader br = tbufInitReader(pVar->pz, pVar->nLen, false); 
-  return colType == TSDB_DATA_TYPE_NCHAR ?  0 : (tbufReadUint32(&br) == colType ? 0: -1);     
+  SBufferReader br = tbufInitReader(pVar->pz, pVar->nLen, false);
+  return colType == TSDB_DATA_TYPE_NCHAR ?  0 : (tbufReadUint32(&br) == colType ? 0: -1);
 }
 
 static uint8_t convertOptr(SStrToken *pToken) {
@@ -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);
@@ -507,7 +495,7 @@ int32_t tscValidateSqlInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
 
       break;
     }
-  
+
     case TSDB_SQL_CREATE_DNODE: {
       const char* msg = "invalid host name (ip address)";
 
@@ -772,8 +760,9 @@ int32_t tscValidateSqlInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
       pCmd->active = pCmd->pQueryInfo;
       pCmd->command = pCmd->pQueryInfo->command;
 
-      if (pTableMetaInfo->pTableMeta != NULL) {
-        pSql->res.precision = tscGetTableInfo(pTableMetaInfo->pTableMeta).precision;
+      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
@@ -807,12 +796,12 @@ int32_t tscValidateSqlInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
       }
       break;
     }
-    case TSDB_SQL_COMPACT_VNODE:{ 
+    case TSDB_SQL_COMPACT_VNODE:{
       const char* msg = "invalid compact";
       if (setCompactVnodeInfo(pSql, pInfo) != TSDB_CODE_SUCCESS) {
         return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg);
-      }                            
-      break;                             
+      }
+      break;
     }
     default:
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), "not support sql expression");
@@ -960,20 +949,22 @@ 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) {
-    return TSDB_CODE_SUCCESS; 
-  } 
+    return TSDB_CODE_SUCCESS;
+  }
 
   if (pQueryInfo->colList == NULL) {
     pQueryInfo->colList = taosArrayInit(4, POINTER_BYTES);
   }
   if (pQueryInfo->groupbyExpr.numOfGroupCols > 0) {
     return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg3);
-  } 
+  }
   pQueryInfo->groupbyExpr.numOfGroupCols = 1;
 
   //TODO(dengyihao): check tag column
@@ -984,23 +975,27 @@ static int32_t validateStateWindowNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SS
   SColumnIndex index = COLUMN_INDEX_INITIALIZER;
   if (getColumnIndexByName(pCmd, col, pQueryInfo, &index) !=  TSDB_CODE_SUCCESS) {
     return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg1);
-  } 
+  }
 
   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;
   if (pGroupExpr->columnInfo == NULL) {
     pGroupExpr->columnInfo = taosArrayInit(4, sizeof(SColIndex));
   }
-  
+
   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) {
-    return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg1);
+  if (pSchema->type == TSDB_DATA_TYPE_TIMESTAMP || pSchema->type == TSDB_DATA_TYPE_FLOAT 
+      || 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);
@@ -1049,7 +1044,7 @@ int32_t validateSessionNode(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SSqlNode * pS
   }
   if (index.columnIndex != PRIMARYKEY_TIMESTAMP_COL_INDEX) {
     return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg3);
-  } 
+  }
 
   pQueryInfo->sessionWindow.primaryColId = PRIMARYKEY_TIMESTAMP_COL_INDEX;
 
@@ -2026,8 +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);
@@ -2341,7 +2338,7 @@ int32_t addExprAndResultField(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, int32_t col
           tickPerSec /= 1000000;
         } else if (info.precision == TSDB_TIME_PRECISION_MICRO) {
           tickPerSec /= 1000;
-	} 
+	}
 
         if (tickPerSec <= 0 || tickPerSec < TSDB_TICK_PER_SECOND(info.precision)) {
           return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg10);
@@ -2978,7 +2975,7 @@ int32_t setKillInfo(SSqlObj* pSql, struct SSqlInfo* pInfo, int32_t killType) {
 static int32_t setCompactVnodeInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
   SSqlCmd* pCmd = &pSql->cmd;
   pCmd->command = pInfo->type;
-  
+
   return TSDB_CODE_SUCCESS;
 }
 bool validateIpAddress(const char* ip, size_t size) {
@@ -3066,8 +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* msg2 = "TWA/Diff only support group by tbname for super table query";
+  const char* msg1 = "TWA/Diff/Derivative/Irate not allowed to apply to super table directly";
+  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.
@@ -3080,7 +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;
@@ -3098,7 +3095,7 @@ bool hasUnsupportFunctionsForSTableQuery(SSqlCmd* pCmd, SQueryInfo* pQueryInfo)
     }
   } else if (tscIsSessionWindowQuery(pQueryInfo)) {
     invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg3);
-    return true; 
+    return true;
   }
 
   return false;
@@ -3340,24 +3337,24 @@ static int32_t doExtractColumnFilterInfo(SSqlCmd* pCmd, SQueryInfo* pQueryInfo,
 
   // TK_GT,TK_GE,TK_EQ,TK_NE are based on the pColumn->lowerBndd
   } else if (pExpr->tokenId == TK_IN) {
-    tVariant *pVal; 
+    tVariant *pVal;
     if (pRight->tokenId != TK_SET || !serializeExprListToVariant(pRight->pParam, &pVal, colType) || colType == TSDB_DATA_TYPE_TIMESTAMP) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg);
-    }         
+    }
     if (validateParamOfRelationIn(pVal, colType) != TSDB_CODE_SUCCESS) {
-      tVariantDestroy(pVal); 
+      tVariantDestroy(pVal);
       free(pVal);
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg);
     }
     pColumnFilter->pz  = (int64_t)calloc(1, pVal->nLen + 1);
     pColumnFilter->len = pVal->nLen;
     pColumnFilter->filterstr = 1;
-    memcpy((char *)(pColumnFilter->pz), (char *)(pVal->pz), pVal->nLen);  
+    memcpy((char *)(pColumnFilter->pz), (char *)(pVal->pz), pVal->nLen);
     //retVal = tVariantDump(pVal, (char *)(pColumnFilter->pz), TSDB_DATA_TYPE_BINARY, false);
 
-    tVariantDestroy(pVal); 
+    tVariantDestroy(pVal);
     free(pVal);
-     
+
   } else if (colType == TSDB_DATA_TYPE_BINARY) {
     pColumnFilter->pz = (int64_t)calloc(1, bufLen * TSDB_NCHAR_SIZE);
     pColumnFilter->len = pRight->value.nLen;
@@ -4884,7 +4881,7 @@ int32_t getTimeRange(STimeWindow* win, tSqlExpr* pRight, int32_t optr, int16_t t
     if (pRight->flags & (1 << EXPR_FLAG_NS_TIMESTAMP)) {
       pRight->value.i64 = convertTimePrecision(pRight->value.i64, TSDB_TIME_PRECISION_NANO, timePrecision);
     }
-    
+
     tVariantDump(&pRight->value, (char*)&val, TSDB_DATA_TYPE_BIGINT, true);
   }
 
@@ -5542,7 +5539,7 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
     if (pItem->type != TSDB_DATA_TYPE_BINARY && pItem->type != TSDB_DATA_TYPE_NCHAR) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg21);
     }
-    
+
     SColumnIndex columnIndex = COLUMN_INDEX_INITIALIZER;
     SStrToken    name = {.type = TK_STRING, .z = pItem->name, .n = (uint32_t)strlen(pItem->name)};
     if (getColumnIndexByName(pCmd, &name, pQueryInfo, &columnIndex) != TSDB_CODE_SUCCESS) {
@@ -5563,11 +5560,11 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         (pItem->type == TSDB_DATA_TYPE_NCHAR && (pItem->bytes <= 0 || pItem->bytes > TSDB_MAX_NCHAR_LEN))) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg24);
     }
-        
+
     if (pItem->bytes <= pColSchema->bytes) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg22);
     }
-    
+
     TAOS_FIELD f = tscCreateField(pColSchema->type, name.z, pItem->bytes);
     tscFieldInfoAppend(&pQueryInfo->fieldsInfo, &f);
   }else if (pAlterSQL->type == TSDB_ALTER_TABLE_MODIFY_TAG_COLUMN) {
@@ -5579,7 +5576,7 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
     if (pItem->type != TSDB_DATA_TYPE_BINARY && pItem->type != TSDB_DATA_TYPE_NCHAR) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg21);
     }
-    
+
     SColumnIndex columnIndex = COLUMN_INDEX_INITIALIZER;
     SStrToken    name = {.type = TK_STRING, .z = pItem->name, .n = (uint32_t)strlen(pItem->name)};
     if (getColumnIndexByName(pCmd, &name, pQueryInfo, &columnIndex) != TSDB_CODE_SUCCESS) {
@@ -5604,11 +5601,11 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
         (pItem->type == TSDB_DATA_TYPE_NCHAR && (pItem->bytes <= 0 || pItem->bytes > TSDB_MAX_NCHAR_LEN))) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg24);
     }
-        
+
     if (pItem->bytes <= pColSchema->bytes) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg22);
     }
-    
+
     TAOS_FIELD f = tscCreateField(pColSchema->type, name.z, pItem->bytes);
     tscFieldInfoAppend(&pQueryInfo->fieldsInfo, &f);
   }
@@ -5974,7 +5971,7 @@ static int32_t setKeepOption(SSqlCmd* pCmd, SCreateDbMsg* pMsg, SCreateDbInfo* p
     tVariantListItem* p0 = taosArrayGet(pKeep, 0);
     tVariantListItem* p1 = (s > 1) ? taosArrayGet(pKeep, 1) : p0;
     tVariantListItem* p2 = (s > 2) ? taosArrayGet(pKeep, 2) : p1;
-    
+
     if ((int32_t)p0->pVar.i64 <= 0 || (int32_t)p1->pVar.i64 <= 0 || (int32_t)p2->pVar.i64 <= 0) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg2);
     }
@@ -7068,7 +7065,7 @@ int32_t doCheckForStream(SSqlObj* pSql, SSqlInfo* pInfo) {
   } else {
     if (pQueryInfo->interval.interval == 0) {
       return invalidOperationMsg(tscGetErrorMsgPayload(pCmd), msg7);
-    }  
+    }
   }
 
   // set the created table[stream] name
@@ -7791,7 +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);
 
@@ -7884,7 +7881,7 @@ int32_t validateSqlNode(SSqlObj* pSql, SSqlNode* pSqlNode, SQueryInfo* pQueryInf
         TSDB_CODE_SUCCESS) {
       return TSDB_CODE_TSC_INVALID_OPERATION;
     }
-    // parse the window_state 
+    // parse the window_state
     if (validateStateWindowNode(pCmd, pQueryInfo, pSqlNode, isSTable) != TSDB_CODE_SUCCESS) {
       return TSDB_CODE_TSC_INVALID_OPERATION;
     }
@@ -8099,7 +8096,7 @@ int32_t exprTreeFromSqlExpr(SSqlCmd* pCmd, tExprNode **pExpr, const tSqlExpr* pS
         SColIndex* idx = taosArrayGet(pCols, 0);
         SSchema* pSchema = tscGetTableColumnSchema(pTableMeta, idx->colIndex);
         if (pSchema != NULL) {
-          colType = pSchema->type; 
+          colType = pSchema->type;
         }
       }
 

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/tscSubquery.c

@@ -109,7 +109,7 @@ bool subAndCheckDone(SSqlObj *pSql, SSqlObj *pParentSql, int idx) {
 //    pthread_mutex_unlock(&subState->mutex);
 //    return false;
 //  }
-  
+
   tscDebug("0x%"PRIx64" subquery:0x%"PRIx64", index:%d state set to 1", pParentSql->self, pSql->self, idx);
   subState->states[idx] = 1;
 
@@ -622,7 +622,7 @@ static int32_t tscLaunchRealSubqueries(SSqlObj* pSql) {
       int16_t colId = tscGetJoinTagColIdByUid(&pQueryInfo->tagCond, pTableMetaInfo->pTableMeta->id.uid);
 
       // set the tag column id for executor to extract correct tag value
-#ifndef _TD_NINGSI_60      
+#ifndef _TD_NINGSI_60
       pExpr->base.param[0] = (tVariant) {.i64 = colId, .nType = TSDB_DATA_TYPE_BIGINT, .nLen = sizeof(int64_t)};
 #else
       pExpr->base.param[0].i64 = colId;
@@ -1843,7 +1843,7 @@ int32_t tscCreateJoinSubquery(SSqlObj *pSql, int16_t tableIndex, SJoinSupporter
     // refactor as one method
     SQueryInfo *pNewQueryInfo = tscGetQueryInfo(&pNew->cmd);
     assert(pNewQueryInfo != NULL);
-    
+
     pSupporter->colList = pNewQueryInfo->colList;
     pNewQueryInfo->colList = NULL;
     
@@ -3158,7 +3158,7 @@ int32_t tscHandleMultivnodeInsert(SSqlObj *pSql) {
       pRes->code = TSDB_CODE_TSC_APP_ERROR;
       return pRes->code;
     }
-    
+
     for(int32_t i = 0; i < pSql->subState.numOfSub; ++i) {
       SSqlObj* pSub = pSql->pSubs[i];
       SInsertSupporter* pSup = calloc(1, sizeof(SInsertSupporter));

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/CMakeLists.txt

@@ -12,4 +12,4 @@ IF (TD_MVN_INSTALLED)
     COMMAND mvn -Dmaven.test.skip=true clean -f ${CMAKE_CURRENT_SOURCE_DIR}/pom.xml
     COMMENT "build jdbc driver")
   ADD_CUSTOM_TARGET(${JDBC_TARGET_NAME} ALL WORKING_DIRECTORY ${EXECUTABLE_OUTPUT_PATH} DEPENDS ${JDBC_CMD_NAME})
-ENDIF ()
+ENDIF ()
\ No newline at end of file

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

 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/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)
-            return executeQuery(this.rawSql);
-
-        final String sql = getNativeSql(this.rawSql);
+        final String sql = Utils.getNativeSql(this.rawSql, this.parameters);
         return executeQuery(sql);
     }
 
     @Override
     public int executeUpdate() throws SQLException {
-        if (!isPrepared)
-            return executeUpdate(this.rawSql);
-        String sql = getNativeSql(this.rawSql);
+        String sql = Utils.getNativeSql(this.rawSql, this.parameters);
         return executeUpdate(sql);
     }
 
@@ -282,25 +259,14 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     @Override
     public boolean execute() throws SQLException {
-        if (!isPrepared)
-            return execute(this.rawSql);
-
-        final String sql = getNativeSql(this.rawSql);
+        final String sql = Utils.getNativeSql(this.rawSql, this.parameters);
         return execute(sql);
     }
 
     @Override
     public void addBatch() throws SQLException {
-        if (this.batchedArgs == null) {
-            batchedArgs = new ArrayList<>();
-        }
-
-        if (!isPrepared) {
-            addBatch(this.rawSql);
-        } else {
-            String sql = this.getConnection().nativeSQL(this.rawSql);
-            addBatch(sql);
-        }
+        String sql = Utils.getNativeSql(this.rawSql, this.parameters);
+        addBatch(sql);
     }
 
     @Override

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: {
-                Byte value = (byte) obj;
-                if (value < 0)
-                    throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_NUMERIC_VALUE_OUT_OF_RANGE);
-                return value;
-            }
-            case TSDBConstants.TSDB_DATA_TYPE_USMALLINT: {
-                short value = (short) 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_UTINYINT:
+                return parseUnsignedTinyIntToInt(obj);
+            case TSDBConstants.TSDB_DATA_TYPE_USMALLINT:
+                return parseUnsignedSmallIntToInt(obj);
+            case TSDBConstants.TSDB_DATA_TYPE_UINT:
+                return parseUnsignedIntegerToInt(obj);
+            case TSDBConstants.TSDB_DATA_TYPE_UBIGINT:
+                return parseUnsignedBigIntToInt(obj);
             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;

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

+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())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
-        final String sql = getNativeSql(this.rawSql);
+        final String sql = Utils.getNativeSql(rawSql, this.parameters);
         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: {
-                if (row.get(colIndex) == null)
-                    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_TIMESTAMP:
+                return parseTimestampColumnData(row, colIndex);
             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

+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();
-//                    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();
+                    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()
-            .appendPattern("yyyy-MM-dd HH:mm:ss.SSS").toFormatter();
-    private static final DateTimeFormatter formatter2 = new DateTimeFormatterBuilder()
-            .appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSS").toFormatter();
+    private static final DateTimeFormatter milliSecFormatter = new DateTimeFormatterBuilder().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 nanoSecFormatter = new DateTimeFormatterBuilder().appendPattern("yyyy-MM-dd HH:mm:ss.SSSSSSSSS").toFormatter();
 
     public static Time parseTime(String timestampStr) throws DateTimeParseException {
-        LocalTime time;
-        try {
-            time = LocalTime.parse(timestampStr, formatter);
-        } catch (DateTimeParseException e) {
-            time = LocalTime.parse(timestampStr, formatter2);
-        }
-        return Time.valueOf(time);
+        LocalDateTime dateTime = parseLocalDateTime(timestampStr);
+        return dateTime != null ? Time.valueOf(dateTime.toLocalTime()) : null;
     }
 
-    public static Date parseDate(String timestampStr) throws DateTimeParseException {
-        LocalDate date;
-        try {
-            date = LocalDate.parse(timestampStr, formatter);
-        } catch (DateTimeParseException e) {
-            date = LocalDate.parse(timestampStr, formatter2);
-        }
-        return Date.valueOf(date);
+    public static Date parseDate(String timestampStr) {
+        LocalDateTime dateTime = parseLocalDateTime(timestampStr);
+        return dateTime != null ? Date.valueOf(String.valueOf(dateTime)) : null;
     }
 
     public static Timestamp parseTimestamp(String timeStampStr) {
-        LocalDateTime dateTime;
+        LocalDateTime dateTime = parseLocalDateTime(timeStampStr);
+        return dateTime != null ? Timestamp.valueOf(dateTime) : null;
+    }
+
+    private static LocalDateTime parseLocalDateTime(String timeStampStr) {
         try {
-            dateTime = LocalDateTime.parse(timeStampStr, formatter);
+            return parseMilliSecTimestamp(timeStampStr);
         } catch (DateTimeParseException e) {
-            dateTime = LocalDateTime.parse(timeStampStr, formatter2);
+            try {
+                return parseMicroSecTimestamp(timeStampStr);
+            } catch (DateTimeParseException ee) {
+                try {
+                    return parseNanoSecTimestamp(timeStampStr);
+                } catch (DateTimeParseException eee) {
+                    eee.printStackTrace();
+                }
+            }
         }
-        return Timestamp.valueOf(dateTime);
+        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(formatter);
+            return timestamp.toLocalDateTime().format(microSecFormatter);
+        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/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;
@@ -299,53 +299,53 @@ public class TSDBPreparedStatementTest {
     }
 
     @Test
-    public void executeTest() throws SQLException {   
-        Statement stmt = conn.createStatement();            
+    public void executeTest() throws SQLException {
+        Statement stmt = conn.createStatement();
 
-        int numOfRows = 1000;        
+        int numOfRows = 1000;
 
-        for (int loop = 0; loop < 10; loop++){
+        for (int loop = 0; loop < 10; loop++) {
             stmt.execute("drop table if exists weather_test");
-            stmt.execute("create table weather_test(ts timestamp, f1 nchar(4), f2 float, f3 double, f4 timestamp, f5 int, f6 bool, f7 binary(10))");            
+            stmt.execute("create table weather_test(ts timestamp, f1 nchar(4), f2 float, f3 double, f4 timestamp, f5 int, f6 bool, f7 binary(10))");
 
             TSDBPreparedStatement s = (TSDBPreparedStatement) conn.prepareStatement("insert into ? values(?, ?, ?, ?, ?, ?, ?, ?)");
             Random r = new Random();
             s.setTableName("weather_test");
-            
+
             ArrayList<Long> ts = new ArrayList<Long>();
-            for(int i = 0; i < numOfRows; i++) {
+            for (int i = 0; i < numOfRows; i++) {
                 ts.add(System.currentTimeMillis() + i);
-            }        
+            }
             s.setTimestamp(0, ts);
 
             int random = 10 + r.nextInt(5);
-            ArrayList<String> s2 = new ArrayList<String>();        
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            ArrayList<String> s2 = new ArrayList<String>();
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     s2.add(null);
-                }else{
+                } else {
                     s2.add("分支" + i % 4);
                 }
-            }        
-            s.setNString(1, s2, 4);      
+            }
+            s.setNString(1, s2, 4);
 
             random = 10 + r.nextInt(5);
-            ArrayList<Float> s3 = new ArrayList<Float>();        
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            ArrayList<Float> s3 = new ArrayList<Float>();
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     s3.add(null);
-                }else{
+                } else {
                     s3.add(r.nextFloat());
                 }
-            }        
+            }
             s.setFloat(2, s3);
 
             random = 10 + r.nextInt(5);
             ArrayList<Double> s4 = new ArrayList<Double>();
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     s4.add(null);
-                }else{
+                } else {
                     s4.add(r.nextDouble());
                 }
             }
@@ -353,47 +353,47 @@ public class TSDBPreparedStatementTest {
 
             random = 10 + r.nextInt(5);
             ArrayList<Long> ts2 = new ArrayList<Long>();
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     ts2.add(null);
-                }else{
+                } else {
                     ts2.add(System.currentTimeMillis() + i);
                 }
             }
             s.setTimestamp(4, ts2);
 
             random = 10 + r.nextInt(5);
-            ArrayList<Integer>  vals = new ArrayList<>();
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            ArrayList<Integer> vals = new ArrayList<>();
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     vals.add(null);
-                }else{
+                } else {
                     vals.add(r.nextInt());
-                }                
+                }
             }
             s.setInt(5, vals);
 
             random = 10 + r.nextInt(5);
             ArrayList<Boolean> sb = new ArrayList<>();
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     sb.add(null);
-                }else{
+                } else {
                     sb.add(i % 2 == 0 ? true : false);
                 }
             }
-            s.setBoolean(6, sb);        
+            s.setBoolean(6, sb);
 
             random = 10 + r.nextInt(5);
             ArrayList<String> s5 = new ArrayList<String>();
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     s5.add(null);
-                }else{
+                } else {
                     s5.add("test" + i % 10);
                 }
             }
-            s.setString(7, s5, 10);        
+            s.setString(7, s5, 10);
 
             s.columnDataAddBatch();
             s.columnDataExecuteBatch();
@@ -403,54 +403,54 @@ public class TSDBPreparedStatementTest {
             PreparedStatement statement = conn.prepareStatement(sql);
             ResultSet rs = statement.executeQuery();
             int rows = 0;
-            while(rs.next()) {
+            while (rs.next()) {
                 rows++;
             }
-            Assert.assertEquals(numOfRows, rows);            
+            Assert.assertEquals(numOfRows, rows);
         }
     }
 
     @Test
-    public void bindDataSelectColumnTest() throws SQLException {   
-        Statement stmt = conn.createStatement();            
+    public void bindDataSelectColumnTest() throws SQLException {
+        Statement stmt = conn.createStatement();
 
-        int numOfRows = 1000;        
+        int numOfRows = 1000;
 
-        for (int loop = 0; loop < 10; loop++){
+        for (int loop = 0; loop < 10; loop++) {
             stmt.execute("drop table if exists weather_test");
-            stmt.execute("create table weather_test(ts timestamp, f1 nchar(4), f2 float, f3 double, f4 timestamp, f5 int, f6 bool, f7 binary(10))");            
+            stmt.execute("create table weather_test(ts timestamp, f1 nchar(4), f2 float, f3 double, f4 timestamp, f5 int, f6 bool, f7 binary(10))");
 
             TSDBPreparedStatement s = (TSDBPreparedStatement) conn.prepareStatement("insert into ? (ts, f1, f7) values(?, ?, ?)");
             Random r = new Random();
             s.setTableName("weather_test");
-            
+
             ArrayList<Long> ts = new ArrayList<Long>();
-            for(int i = 0; i < numOfRows; i++) {
+            for (int i = 0; i < numOfRows; i++) {
                 ts.add(System.currentTimeMillis() + i);
-            }        
+            }
             s.setTimestamp(0, ts);
 
             int random = 10 + r.nextInt(5);
-            ArrayList<String> s2 = new ArrayList<String>();        
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            ArrayList<String> s2 = new ArrayList<String>();
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     s2.add(null);
-                }else{
+                } else {
                     s2.add("分支" + i % 4);
                 }
-            }        
-            s.setNString(1, s2, 4);                   
+            }
+            s.setNString(1, s2, 4);
 
             random = 10 + r.nextInt(5);
             ArrayList<String> s3 = new ArrayList<String>();
-            for(int i = 0; i < numOfRows; i++) {
-                if(i % random == 0) {
+            for (int i = 0; i < numOfRows; i++) {
+                if (i % random == 0) {
                     s3.add(null);
-                }else{
+                } else {
                     s3.add("test" + i % 10);
                 }
             }
-            s.setString(2, s3, 10);        
+            s.setString(2, s3, 10);
 
             s.columnDataAddBatch();
             s.columnDataExecuteBatch();
@@ -460,30 +460,30 @@ public class TSDBPreparedStatementTest {
             PreparedStatement statement = conn.prepareStatement(sql);
             ResultSet rs = statement.executeQuery();
             int rows = 0;
-            while(rs.next()) {
+            while (rs.next()) {
                 rows++;
             }
-            Assert.assertEquals(numOfRows, rows);            
+            Assert.assertEquals(numOfRows, rows);
         }
     }
 
     @Test
-    public void bindDataWithSingleTagTest() throws SQLException { 
-        Statement stmt = conn.createStatement();                
+    public void bindDataWithSingleTagTest() throws SQLException {
+        Statement stmt = conn.createStatement();
 
-        String types[] = new String[] {"tinyint", "smallint", "int", "bigint", "bool", "float", "double", "binary(10)", "nchar(10)"};                
+        String types[] = new String[]{"tinyint", "smallint", "int", "bigint", "bool", "float", "double", "binary(10)", "nchar(10)"};
 
         for (String type : types) {
             stmt.execute("drop table if exists weather_test");
             stmt.execute("create table weather_test(ts timestamp, f1 nchar(10), f2 binary(10)) tags (t " + type + ")");
 
             int numOfRows = 1;
-    
+
             TSDBPreparedStatement s = (TSDBPreparedStatement) conn.prepareStatement("insert into ? using weather_test tags(?) values(?, ?, ?)");
             Random r = new Random();
             s.setTableName("w1");
-            
-            switch(type) {
+
+            switch (type) {
                 case "tinyint":
                 case "smallint":
                 case "int":
@@ -508,37 +508,37 @@ public class TSDBPreparedStatementTest {
                 default:
                     break;
             }
-            
-            
+
+
             ArrayList<Long> ts = new ArrayList<Long>();
-            for(int i = 0; i < numOfRows; i++) {
+            for (int i = 0; i < numOfRows; i++) {
                 ts.add(System.currentTimeMillis() + i);
-            }        
+            }
             s.setTimestamp(0, ts);
-    
+
             int random = 10 + r.nextInt(5);
-            ArrayList<String> s2 = new ArrayList<String>();        
-            for(int i = 0; i < numOfRows; i++) {            
-                s2.add("分支" + i % 4);            
-            }        
+            ArrayList<String> s2 = new ArrayList<String>();
+            for (int i = 0; i < numOfRows; i++) {
+                s2.add("分支" + i % 4);
+            }
             s.setNString(1, s2, 10);
-            
+
             random = 10 + r.nextInt(5);
-            ArrayList<String> s3 = new ArrayList<String>();        
-            for(int i = 0; i < numOfRows; i++) {            
-                s3.add("test" + i % 4);            
-            }        
+            ArrayList<String> s3 = new ArrayList<String>();
+            for (int i = 0; i < numOfRows; i++) {
+                s3.add("test" + i % 4);
+            }
             s.setString(2, s3, 10);
-    
+
             s.columnDataAddBatch();
             s.columnDataExecuteBatch();
             s.columnDataCloseBatch();
-    
+
             String sql = "select * from weather_test";
             PreparedStatement statement = conn.prepareStatement(sql);
             ResultSet rs = statement.executeQuery();
             int rows = 0;
-            while(rs.next()) {
+            while (rs.next()) {
                 rows++;
             }
             Assert.assertEquals(numOfRows, rows);
@@ -547,32 +547,32 @@ public class TSDBPreparedStatementTest {
 
 
     @Test
-    public void bindDataWithMultipleTagsTest() throws SQLException { 
-        Statement stmt = conn.createStatement();                
-        
+    public void bindDataWithMultipleTagsTest() throws SQLException {
+        Statement stmt = conn.createStatement();
+
         stmt.execute("drop table if exists weather_test");
         stmt.execute("create table weather_test(ts timestamp, f1 nchar(10), f2 binary(10)) tags (t1 int, t2 binary(10))");
 
         int numOfRows = 1;
 
-        TSDBPreparedStatement s = (TSDBPreparedStatement) conn.prepareStatement("insert into ? using weather_test tags(?,?) (ts, f2) values(?, ?)");        
-        s.setTableName("w2");  
+        TSDBPreparedStatement s = (TSDBPreparedStatement) conn.prepareStatement("insert into ? using weather_test tags(?,?) (ts, f2) values(?, ?)");
+        s.setTableName("w2");
         s.setTagInt(0, 1);
         s.setTagString(1, "test");
-        
-        
+
+
         ArrayList<Long> ts = new ArrayList<Long>();
-        for(int i = 0; i < numOfRows; i++) {
+        for (int i = 0; i < numOfRows; i++) {
             ts.add(System.currentTimeMillis() + i);
-        }        
+        }
         s.setTimestamp(0, ts);
-        
-        ArrayList<String> s2 = new ArrayList<String>();        
-        for(int i = 0; i < numOfRows; i++) {            
+
+        ArrayList<String> s2 = new ArrayList<String>();
+        for (int i = 0; i < numOfRows; i++) {
             s2.add("test" + i % 4);
         }
         s.setString(1, s2, 10);
-    
+
         s.columnDataAddBatch();
         s.columnDataExecuteBatch();
         s.columnDataCloseBatch();
@@ -581,21 +581,20 @@ public class TSDBPreparedStatementTest {
         PreparedStatement statement = conn.prepareStatement(sql);
         ResultSet rs = statement.executeQuery();
         int rows = 0;
-        while(rs.next()) {
+        while (rs.next()) {
             rows++;
         }
         Assert.assertEquals(numOfRows, rows);
-        
     }
-    
-    @Test
+
+    @Test(expected = SQLException.class)
     public void createTwoSameDbTest() throws SQLException {
-        Statement stmt = conn.createStatement();                
-                
+        // when
+        Statement stmt = conn.createStatement();
+        stmt.execute("create database dbtest");
         stmt.execute("create database dbtest");
-        Assert.assertThrows(SQLException.class, () -> stmt.execute("create database dbtest"));                
     }
-    
+
     @Test
     public void setBoolean() throws SQLException {
         // given
@@ -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("create database if not exists test_pstmt_jni");
-                stmt.execute("use test_pstmt_jni");
+                stmt.execute("drop database if exists " + dbname);
+                stmt.execute("create database if not exists " + dbname);
+                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/TD4174Test.java → 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 {
-    private Connection conn;
+public class DoubleQuoteInSqlTest {
     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();
+        JSONObject value = new JSONObject();
+        value.put("name", "John Smith");
+        value.put("age", 20);
+
+        // when
+        int ret = 0;
         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();
-            Assert.assertEquals(1, ret);
+            ret = pstmt.executeUpdate();
         } catch (SQLException e) {
             e.printStackTrace();
         }
-    }
 
-    public static void main(String[] args) {
-        JSONObject value = new JSONObject();
-        value.put("name", "John Smith");
-        value.put("age", 20);
-        System.out.println(value.toJSONString());
+        // then
+        Assert.assertEquals("{\"name\":\"John Smith\",\"age\":20}", value.toJSONString());
+        Assert.assertEquals(1, ret);
     }
 
     @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");
 
-        conn = DriverManager.getConnection(url, properties);
-        try (Statement stmt = conn.createStatement()) {
-            stmt.execute("drop database if exists td4174");
-            stmt.execute("create database if not exists td4174");
-            stmt.execute("use td4174");
+        try {
+            conn = DriverManager.getConnection(url, properties);
+            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 weather(ts timestamp, text binary(64))");
+        } catch (SQLException e) {
+            e.printStackTrace();
         }
     }
 
     @After
-    public void after() throws SQLException {
-        if (conn != null)
+    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/TwoTypeTimestampPercisionInJniTest.java → 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/TwoTypeTimestampPercisionInRestfulTest.java → 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

+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

+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/NullValueInResultSetForJdbcJniTest.java → 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/NullValueInResultSetForJdbcRestfulTest.java → 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/TD3841Test.java → 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

+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

+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

+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

-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);
+
+    }
 }
\ No newline at end of file

src/connector/python/taos/cinterface.py

@@ -15,7 +15,7 @@ def _convert_microsecond_to_datetime(micro):
 
 
 def _convert_nanosecond_to_datetime(nanosec):
-    return datetime.datetime.fromtimestamp(nanosec / 1000000000.0)
+    return nanosec
 
 
 def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, precision=FieldType.C_TIMESTAMP_UNKNOWN):

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/inc/sql.y

@@ -176,7 +176,7 @@ cmd ::= ALTER ACCOUNT ids(X) PASS ids(Y) acct_optr(Z).      { setCreateAcctSql(p
 
 ////////////////////////////// COMPACT STATEMENT //////////////////////////////////////////////
 
-cmd ::= COMPACT VNODES IN LP exprlist(Y) RP.    { setCompactVnodeSql(pInfo, TSDB_SQL_COMPACT_VNODE, Y);}  
+cmd ::= COMPACT VNODES IN LP exprlist(Y) RP.    { setCompactVnodeSql(pInfo, TSDB_SQL_COMPACT_VNODE, Y);}
 
 // An IDENTIFIER can be a generic identifier, or one of several keywords.
 // Any non-standard keyword can also be an identifier.

src/query/src/qAggMain.c

@@ -3613,16 +3613,7 @@ 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;
-  }
+  GET_RES_INFO(pCtx)->numOfRes += notNullElems;
 }
 
 #define DIFF_IMPL(ctx, d, type)                                                              \

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;

tests/pytest/functions/function_derivative.py

@@ -128,7 +128,14 @@ class TDTestCase:
 
     def run(self):
         tdSql.prepare()        
-        self.insertAndCheckData()               
+        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()

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 *
 
 
@@ -134,25 +135,32 @@ class TDSql:
         return self.cursor.istype(col, dataType)
 
     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):
-                tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
+        self.checkRowCol(row, col)
+        if self.queryResult[row][col] != 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
 
             if str(self.queryResult[row][col]) == str(data):
                 tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
-                            (self.sql, row, col, self.queryResult[row][col], data)) 
+                            (self.sql, row, col, self.queryResult[row][col], data))
                 return
-            elif isinstance(data, float) and abs(self.queryResult[row][col] - data) <= 0.000001:                
+            elif isinstance(data, float) and abs(self.queryResult[row][col] - data) <= 0.000001:
                 tdLog.info("sql:%s, row:%d col:%d data:%f == expect:%f" %
-                            (self.sql, row, col, self.queryResult[row][col], data)) 
+                            (self.sql, row, col, self.queryResult[row][col], data))
                 return
             else:
                 caller = inspect.getframeinfo(inspect.stack()[1][0])
                 args = (caller.filename, caller.lineno, self.sql, row, col, self.queryResult[row][col], data)
-                tdLog.exit("%s(%d) failed: sql:%s row:%d col:%d data:%s != expect:%s" % args)        
+                tdLog.exit("%s(%d) failed: sql:%s row:%d col:%d data:%s != expect:%s" % args)
 
         if data is None:
             tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
@@ -162,11 +170,11 @@ class TDSql:
                        (self.sql, row, col, self.queryResult[row][col], data))
         elif isinstance(data, datetime.date):
             tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
-                       (self.sql, row, col, self.queryResult[row][col], data))        
+                       (self.sql, row, col, self.queryResult[row][col], data))
         elif isinstance(data, float):
             tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                        (self.sql, row, col, self.queryResult[row][col], data))
-        else:            
+        else:
             tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%d" %
                        (self.sql, row, col, self.queryResult[row][col], data))
 
@@ -200,7 +208,7 @@ class TDSql:
             tdLog.exit("%s(%d) failed: sql:%s, affectedRows:%d != expect:%d" % args)
 
         tdLog.info("sql:%s, affectedRows:%d == expect:%d" % (self.sql, self.affectedRows, expectAffectedRows))
-    
+
     def taosdStatus(self, state):
         tdLog.sleep(5)
         pstate = 0
@@ -221,7 +229,7 @@ class TDSql:
                 continue
             pstate = 0
             break
-            
+
         args=(pstate,state)
         if pstate == state:
             tdLog.info("taosd state is %d == expect:%d" %args)
@@ -236,11 +244,11 @@ class TDSql:
                     tdLog.exit("dir: %s is empty, expect: not empty" %dir)
                 else:
                     tdLog.info("dir: %s is empty, expect: empty" %dir)
-            else:  
+            else:
                 if state :
                     tdLog.info("dir: %s is not empty, expect: not empty" %dir)
                 else:
-                    tdLog.exit("dir: %s is not empty, expect: empty" %dir)  
+                    tdLog.exit("dir: %s is not empty, expect: empty" %dir)
         else:
             tdLog.exit("dir: %s doesn't exist" %dir)
     def createDir(self, dir):
@@ -250,5 +258,5 @@ class TDSql:
         os.makedirs( dir, 755 )
         tdLog.info("dir: %s is created" %dir)
         pass
-        
+
 tdSql = TDSql()

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);