Merge branch 'master' into test/chr

.appveyor.yml

 version: 1.0.{build}
-os: Visual Studio 2015
+image: 
+  - Visual Studio 2015
+  - macos
 environment:
   matrix:
     - ARCH: amd64
     - ARCH: x86
+matrix:
+  exclude:
+    - image: macos
+      ARCH: x86
+for:
+  - 
+    matrix:
+      only:
+        - image: Visual Studio 2015
+    clone_folder: c:\dev\TDengine
+    clone_depth: 1
 
-clone_folder: c:\dev\TDengine
-clone_depth: 1
+    init:
+      - call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %ARCH%
 
-init:
-  - call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %ARCH%
+    before_build:
+      - cd c:\dev\TDengine
+      - md build
 
-before_build:
-  - cd c:\dev\TDengine
-  - md build
-
-build_script:
-  - cd build
-  - cmake -G "NMake Makefiles" ..
-  - nmake install
+    build_script:
+      - cd build
+      - cmake -G "NMake Makefiles" ..
+      - nmake install
+  -
+    matrix:
+      only:
+        - image: macos
+    clone_depth: 1
 
+    build_script:
+      - mkdir debug
+      - cd debug
+      - cmake .. > /dev/null
+      - make > /dev/null
 notifications:
 - provider: Email
   to:
   - sangshuduo@gmail.com
-  
   on_build_success: true
   on_build_failure: true
   on_build_status_changed: true

.drone.yml

+---
+kind: pipeline
+name: test_amd64
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: gcc
+  commands:
+  - apt-get update
+  - apt-get install -y cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+- name: smoke_test
+  image: python:3.8
+  commands:
+  - pip3 install psutil
+  - pip3 install guppy3
+  - pip3 install src/connector/python/linux/python3/
+  - cd tests
+  - ./test-all.sh smoke
+  when:
+    branch:
+    - develop
+    - master
+
+
+- name: crash_gen
+  image: python:3.8
+  commands:
+  - pip3 install requests
+  - pip3 install src/connector/python/linux/python3/
+  - pip3 install psutil
+  - pip3 install guppy3
+  - cd tests/pytest 
+  - ./crash_gen.sh -a -p -t 4 -s 2000
+  when:
+    branch:
+    - develop
+    - master
+
+
+---
+kind: pipeline
+name: test_arm64
+
+platform:
+  os: linux
+  arch: arm64
+
+steps:
+- name: build
+  image: gcc
+  commands:
+  - apt-get update
+  - apt-get install -y cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. -DCPUTYPE=aarch64 > /dev/null
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+---
+kind: pipeline
+name: test_arm
+
+platform:
+  os: linux
+  arch: arm
+
+steps:
+- name: build
+  image: arm32v7/ubuntu:bionic
+  commands:
+  - apt-get update
+  - apt-get install -y cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. -DCPUTYPE=aarch32 > /dev/null
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: build_trusty
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: ubuntu:trusty
+  commands:
+  - apt-get update
+  - apt-get install -y gcc cmake3 build-essential git binutils-2.26
+ 
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: build_xenial
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: ubuntu:xenial
+  commands:
+  - apt-get update
+  - apt-get install -y gcc cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: build_bionic
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: ubuntu:bionic
+  commands:
+  - apt-get update
+  - apt-get install -y gcc cmake build-essential
+  - mkdir debug
+  - cd debug
+  - cmake .. 
+  - make 
+  when:
+    branch:
+    - develop
+    - master
+
+---
+kind: pipeline
+name: goodbye
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: 64-bit
+  image: alpine
+  commands:
+  - echo 64-bit is good.
+  when:
+    branch:
+    - develop
+    - master
+
+
+depends_on:
+- test_arm64
+- test_amd64
\ No newline at end of file

.travis.yml

@@ -13,7 +13,7 @@ branches:
 
 matrix:
   - os: linux
-    dist: focal
+    dist: bionic
     language: c
 
     git:
@@ -28,8 +28,8 @@ matrix:
           - build-essential
           - cmake
           - net-tools
-          - python3-pip
-          - python3-setuptools
+          - python3.8
+          - libc6-dbg
           - valgrind
           - psmisc
           - unixodbc
@@ -39,6 +39,8 @@ matrix:
     before_script:
       - export TZ=Asia/Harbin
       - date
+      - curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py && python3.8 get-pip.py
+      - python3.8 -m pip install --upgrade pip setuptools
       - cd ${TRAVIS_BUILD_DIR}
       - mkdir debug
       - cd debug

README.md

-[![Build Status](https://travis-ci.org/taosdata/TDengine.svg?branch=master)](https://travis-ci.org/taosdata/TDengine)
+[![Build Status](https://cloud.drone.io/api/badges/taosdata/TDengine/status.svg?ref=refs/heads/master)](https://cloud.drone.io/taosdata/TDengine)
 [![Build status](https://ci.appveyor.com/api/projects/status/kf3pwh2or5afsgl9/branch/master?svg=true)](https://ci.appveyor.com/project/sangshuduo/tdengine-2n8ge/branch/master)
 [![Coverage Status](https://coveralls.io/repos/github/taosdata/TDengine/badge.svg?branch=develop)](https://coveralls.io/github/taosdata/TDengine?branch=develop)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/4201/badge)](https://bestpractices.coreinfrastructure.org/projects/4201)

cmake/install.inc

@@ -32,7 +32,7 @@ ELSEIF (TD_WINDOWS)
   #INSTALL(TARGETS taos RUNTIME DESTINATION driver)
   #INSTALL(TARGETS shell RUNTIME DESTINATION .)
   IF (TD_MVN_INSTALLED)
-    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.25-dist.jar DESTINATION connector/jdbc)
+    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.28-dist.jar DESTINATION connector/jdbc)
   ENDIF ()
 ELSEIF (TD_DARWIN)
   SET(TD_MAKE_INSTALL_SH "${TD_COMMUNITY_DIR}/packaging/tools/make_install.sh")

cmake/version.inc

@@ -4,7 +4,7 @@ PROJECT(TDengine)
 IF (DEFINED VERNUMBER)
   SET(TD_VER_NUMBER ${VERNUMBER})
 ELSE ()
-  SET(TD_VER_NUMBER "2.0.20.0")
+  SET(TD_VER_NUMBER "2.0.20.2")
 ENDIF ()
 
 IF (DEFINED VERCOMPATIBLE)

snap/snapcraft.yaml

 name: tdengine
 base: core18
-version: '2.0.20.0'
+version: '2.0.20.2'
 icon: snap/gui/t-dengine.svg
 summary: an open-source big data platform designed and optimized for IoT. 
 description: |
@@ -72,7 +72,7 @@ parts:
       - usr/bin/taosd
       - usr/bin/taos
       - usr/bin/taosdemo
-      - usr/lib/libtaos.so.2.0.20.0
+      - usr/lib/libtaos.so.2.0.20.2
       - usr/lib/libtaos.so.1
       - usr/lib/libtaos.so
 

src/client/inc/tscUtil.h

@@ -168,7 +168,8 @@ void    tscFieldInfoClear(SFieldInfo* pFieldInfo);
 
 static FORCE_INLINE int32_t tscNumOfFields(SQueryInfo* pQueryInfo) { return pQueryInfo->fieldsInfo.numOfOutput; }
 
-int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2);
+int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2, int32_t *diffSize);
+int32_t tscFieldInfoSetSize(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2);
 
 void addExprParams(SSqlExpr* pExpr, char* argument, int32_t type, int32_t bytes);
 

src/client/src/tscSQLParser.c

@@ -642,17 +642,25 @@ int32_t tscToSQLCmd(SSqlObj* pSql, struct SSqlInfo* pInfo) {
       // set the command/global limit parameters from the first subclause to the sqlcmd object
       SQueryInfo* pQueryInfo1 = tscGetQueryInfoDetail(pCmd, 0);
       pCmd->command = pQueryInfo1->command;
-
+      int32_t diffSize = 0;
+      
       // if there is only one element, the limit of clause is the limit of global result.
       for (int32_t i = 1; i < pCmd->numOfClause; ++i) {
         SQueryInfo* pQueryInfo2 = tscGetQueryInfoDetail(pCmd, i);
 
-        int32_t ret = tscFieldInfoCompare(&pQueryInfo1->fieldsInfo, &pQueryInfo2->fieldsInfo);
+        int32_t ret = tscFieldInfoCompare(&pQueryInfo1->fieldsInfo, &pQueryInfo2->fieldsInfo, &diffSize);
         if (ret != 0) {
           return invalidSqlErrMsg(tscGetErrorMsgPayload(pCmd), msg1);
         }
       }
 
+      if (diffSize) {
+        for (int32_t i = 1; i < pCmd->numOfClause; ++i) {
+          SQueryInfo* pQueryInfo2 = tscGetQueryInfoDetail(pCmd, i);        
+          tscFieldInfoSetSize(&pQueryInfo1->fieldsInfo, &pQueryInfo2->fieldsInfo);
+        }
+      }
+
       pCmd->parseFinished = 1;
       return TSDB_CODE_SUCCESS;  // do not build query message here
     }
@@ -1606,6 +1614,22 @@ bool isValidDistinctSql(SQueryInfo* pQueryInfo) {
   return false;
 }
 
+static bool hasNoneUserDefineExpr(SQueryInfo* pQueryInfo) {
+  size_t numOfExprs = taosArrayGetSize(pQueryInfo->exprList);
+  for (int32_t i = 0; i < numOfExprs; ++i) {
+    SSqlExpr* pExpr = taosArrayGetP(pQueryInfo->exprList, i);
+
+    if (TSDB_COL_IS_UD_COL(pExpr->colInfo.flag)) {
+      continue;
+    }
+
+    return true;
+  }
+
+  return false;
+}
+
+
 int32_t parseSelectClause(SSqlCmd* pCmd, int32_t clauseIndex, SArray* pSelectList, bool isSTable, bool joinQuery, bool timeWindowQuery) {
   assert(pSelectList != NULL && pCmd != NULL);
   const char* msg1 = "too many columns in selection clause";
@@ -1670,7 +1694,7 @@ int32_t parseSelectClause(SSqlCmd* pCmd, int32_t clauseIndex, SArray* pSelectLis
   
   // there is only one user-defined column in the final result field, add the timestamp column.
   size_t numOfSrcCols = taosArrayGetSize(pQueryInfo->colList);
-  if (numOfSrcCols <= 0 && !tscQueryTags(pQueryInfo) && !tscQueryBlockInfo(pQueryInfo)) {
+  if ((numOfSrcCols <= 0 || !hasNoneUserDefineExpr(pQueryInfo)) && !tscQueryTags(pQueryInfo) && !tscQueryBlockInfo(pQueryInfo)) {
     addPrimaryTsColIntoResult(pQueryInfo);
   }
 

src/client/src/tscUtil.c

@@ -1098,7 +1098,7 @@ int16_t tscFieldInfoGetOffset(SQueryInfo* pQueryInfo, int32_t index) {
   return pInfo->pSqlExpr->offset;
 }
 
-int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2) {
+int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2, int32_t *diffSize) {
   assert(pFieldInfo1 != NULL && pFieldInfo2 != NULL);
 
   if (pFieldInfo1->numOfOutput != pFieldInfo2->numOfOutput) {
@@ -1110,15 +1110,36 @@ int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFi
     TAOS_FIELD* pField2 = tscFieldInfoGetField((SFieldInfo*) pFieldInfo2, i);
 
     if (pField1->type != pField2->type ||
-        pField1->bytes != pField2->bytes ||
         strcasecmp(pField1->name, pField2->name) != 0) {
       return 1;
     }
+
+    if (pField1->bytes != pField2->bytes) {
+      *diffSize = 1;
+
+      if (pField2->bytes > pField1->bytes) {
+        pField1->bytes = pField2->bytes;
+      }
+    }
+  }
+
+  return 0;
+}
+
+int32_t tscFieldInfoSetSize(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2) {
+  assert(pFieldInfo1 != NULL && pFieldInfo2 != NULL);
+
+  for (int32_t i = 0; i < pFieldInfo1->numOfOutput; ++i) {
+    TAOS_FIELD* pField1 = tscFieldInfoGetField((SFieldInfo*) pFieldInfo1, i);
+    TAOS_FIELD* pField2 = tscFieldInfoGetField((SFieldInfo*) pFieldInfo2, i);
+
+    pField2->bytes = pField1->bytes;
   }
 
   return 0;
 }
 
+
 int32_t tscGetResRowLength(SArray* pExprList) {
   size_t num = taosArrayGetSize(pExprList);
   if (num == 0) {
@@ -2682,7 +2703,13 @@ void tscTryQueryNextClause(SSqlObj* pSql, __async_cb_func_t fp) {
 
   //backup the total number of result first
   int64_t num = pRes->numOfTotal + pRes->numOfClauseTotal;
+
+
+  // DON't free final since it may be recoreded and used later in APP
+  TAOS_FIELD* finalBk = pRes->final;
+  pRes->final = NULL;
   tscFreeSqlResult(pSql);
+  pRes->final = finalBk;
   
   pRes->numOfTotal = num;
   

src/connector/jdbc/CMakeLists.txt

@@ -8,7 +8,7 @@ IF (TD_MVN_INSTALLED)
   ADD_CUSTOM_COMMAND(OUTPUT ${JDBC_CMD_NAME}
     POST_BUILD
     COMMAND mvn -Dmaven.test.skip=true install -f ${CMAKE_CURRENT_SOURCE_DIR}/pom.xml
-    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.25-dist.jar ${LIBRARY_OUTPUT_PATH}
+    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.28-dist.jar ${LIBRARY_OUTPUT_PATH}
     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})

src/connector/jdbc/deploy-pom.xml

@@ -5,7 +5,7 @@
 
   <groupId>com.taosdata.jdbc</groupId>
   <artifactId>taos-jdbcdriver</artifactId>
-  <version>2.0.25</version>
+  <version>2.0.28</version>
   <packaging>jar</packaging>
 
   <name>JDBCDriver</name>

src/connector/jdbc/pom.xml

@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.taosdata.jdbc</groupId>
     <artifactId>taos-jdbcdriver</artifactId>
-    <version>2.0.25</version>
+    <version>2.0.28</version>
     <packaging>jar</packaging>
     <name>JDBCDriver</name>
     <url>https://github.com/taosdata/TDengine/tree/master/src/connector/jdbc</url>

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

@@ -4,13 +4,23 @@ import java.sql.*;
 import java.util.Enumeration;
 import java.util.Map;
 import java.util.Properties;
+import java.util.Set;
 import java.util.concurrent.*;
 
 public abstract class AbstractConnection extends WrapperImpl implements Connection {
 
     protected volatile boolean isClosed;
     protected volatile String catalog;
-    protected volatile Properties clientInfoProps = new Properties();
+    protected final Properties clientInfoProps = new Properties();
+
+    protected AbstractConnection(Properties properties) {
+        Set<String> propNames = properties.stringPropertyNames();
+        for (String propName : propNames) {
+            clientInfoProps.setProperty(propName, properties.getProperty(propName));
+        }
+        String timestampFormat = properties.getProperty(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT, "STRING");
+        clientInfoProps.setProperty(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT, timestampFormat);
+    }
 
     @Override
     public abstract Statement createStatement() throws SQLException;
@@ -35,7 +45,6 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
     }
 
 
-
     @Override
     public void setAutoCommit(boolean autoCommit) throws SQLException {
         if (isClosed())
@@ -441,9 +450,8 @@ public abstract class AbstractConnection extends WrapperImpl implements Connecti
         if (isClosed)
             throw (SQLClientInfoException) TSDBError.createSQLException(TSDBErrorNumbers.ERROR_SQLCLIENT_EXCEPTION_ON_CONNECTION_CLOSED);
 
-        if (clientInfoProps == null)
-            clientInfoProps = new Properties();
-        clientInfoProps.setProperty(name, value);
+        if (clientInfoProps != null)
+            clientInfoProps.setProperty(name, value);
     }
 
     @Override

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

@@ -10,6 +10,7 @@ import java.util.Map;
 
 public abstract class AbstractResultSet extends WrapperImpl implements ResultSet {
     private int fetchSize;
+    protected boolean wasNull;
 
     protected void checkAvailability(int columnIndex, int bounds) throws SQLException {
         if (isClosed())
@@ -28,7 +29,7 @@ public abstract class AbstractResultSet extends WrapperImpl implements ResultSet
 
     @Override
     public boolean wasNull() throws SQLException {
-        return false;
+        return wasNull;
     }
 
     @Override

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

@@ -28,6 +28,7 @@ public class TSDBConnection extends AbstractConnection {
     }
 
     public TSDBConnection(Properties info, TSDBDatabaseMetaData meta) throws SQLException {
+        super(info);
         this.databaseMetaData = meta;
         connect(info.getProperty(TSDBDriver.PROPERTY_KEY_HOST),
                 Integer.parseInt(info.getProperty(TSDBDriver.PROPERTY_KEY_PORT, "0")),

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

@@ -95,11 +95,16 @@ public class TSDBDriver extends AbstractDriver {
      */
     public static final String PROPERTY_KEY_BATCH_LOAD = "batchfetch";
 
+    /**
+     * timestamp format for JDBC-RESTful,should one of the options: string or timestamp or utc
+     */
+    public static final String PROPERTY_KEY_TIMESTAMP_FORMAT = "timestampFormat";
+
     private TSDBDatabaseMetaData dbMetaData = null;
 
     static {
         try {
-            java.sql.DriverManager.registerDriver(new TSDBDriver());
+            DriverManager.registerDriver(new TSDBDriver());
         } catch (SQLException e) {
             throw TSDBError.createRuntimeException(TSDBErrorNumbers.ERROR_CANNOT_REGISTER_JNI_DRIVER, e);
         }

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

@@ -14,11 +14,12 @@
  *****************************************************************************/
 package com.taosdata.jdbc;
 
+import com.taosdata.jdbc.utils.Utils;
+
 import java.io.InputStream;
 import java.io.Reader;
 import java.math.BigDecimal;
 import java.net.URL;
-import java.nio.charset.Charset;
 import java.sql.*;
 import java.util.ArrayList;
 import java.util.Calendar;
@@ -33,17 +34,9 @@ import java.util.regex.Pattern;
 public class TSDBPreparedStatement extends TSDBStatement implements PreparedStatement {
 
     private String rawSql;
-    private String sql;
-    //    private ArrayList<Object> parameters = new ArrayList<>();
     private Object[] parameters;
     private boolean isPrepared;
 
-    //start with insert or import and is case-insensitive
-    private static Pattern savePattern = Pattern.compile("(?i)^\\s*(insert|import)");
-    // is insert or import
-    private boolean isSaved;
-
-    //    private SavedPreparedStatement savedPreparedStatement;
     private volatile TSDBParameterMetaData parameterMetaData;
 
     TSDBPreparedStatement(TSDBConnection connection, TSDBJNIConnector connecter, String sql) {
@@ -65,35 +58,11 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     private void init(String sql) {
         this.rawSql = sql;
         preprocessSql();
-//        this.isSaved = isSavedSql(this.rawSql);
-//        if (this.isSaved) {
-//            try {
-//                this.savedPreparedStatement = new SavedPreparedStatement(this.rawSql, this);
-//            } catch (SQLException e) {
-//                e.printStackTrace();
-//            }
-//        }
-
-    }
-
-    /**
-     * if the precompiled sql is insert or import
-     *
-     * @param sql
-     * @return
-     */
-    private boolean isSavedSql(String sql) {
-        Matcher matcher = savePattern.matcher(sql);
-        return matcher.find();
     }
 
     @Override
     public int[] executeBatch() throws SQLException {
-//        if (isSaved) {
-//            return this.savedPreparedStatement.executeBatch();
-//        } else {
         return super.executeBatch();
-//        }
     }
 
     /*
@@ -157,152 +126,64 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
      *
      * @return a string of the native sql statement for TSDB
      */
-//    private String getNativeSql(String rawSql) {
-//        for (int i = 0; i < parameters.length; i++) {
-//            Object para = parameters[i];
-//            if (para != null) {
-//                String paraStr = para.toString();
-//                if (para instanceof Timestamp || para instanceof String) {
-//                    paraStr = "'" + paraStr + "'";
-//                }
-//                this.sql = this.sql.replaceFirst("[?]", paraStr);
-//            } else {
-//                this.sql = this.sql.replaceFirst("[?]", "NULL");
-//            }
-//        }
-//        parameters = new Object[parameters.length];
-//        return sql;
-//    }
-
     private String getNativeSql(String rawSql) throws SQLException {
-        String sql = rawSql;
-        for (int i = 0; i < parameters.length; ++i) {
-            Object para = parameters[i];
-            if (para != null) {
-                String paraStr;
-                if (para instanceof byte[]) {
-                    paraStr = new String((byte[]) para, Charset.forName("UTF-8"));
-                } else {
-                    paraStr = para.toString();
-                }
-                // if para is timestamp or String or byte[] need to translate ' character
-                if (para instanceof Timestamp || para instanceof String || para instanceof byte[]) {
-                    paraStr = paraStr.replaceAll("'", "\\\\\\\\'");
-                    paraStr = "'" + paraStr + "'";
-                }
-                sql = sql.replaceFirst("[?]", paraStr);
-            } else {
-                sql = sql.replaceFirst("[?]", "NULL");
-            }
-        }
-        clearParameters();
-        return sql;
+        return Utils.getNativeSql(rawSql, this.parameters);
     }
 
     @Override
     public ResultSet executeQuery() throws SQLException {
-//        if (isSaved) {
-//            this.savedPreparedStatement.executeBatchInternal();
-//            return null;
-//        } else {
-
         if (!isPrepared)
             return executeQuery(this.rawSql);
 
         final String sql = getNativeSql(this.rawSql);
         return executeQuery(sql);
-//        }
     }
 
     @Override
     public int executeUpdate() throws SQLException {
-//        if (isSaved) {
-//            return this.savedPreparedStatement.executeBatchInternal();
-//        } else {
         if (!isPrepared)
             return executeUpdate(this.rawSql);
         String sql = getNativeSql(this.rawSql);
         return executeUpdate(sql);
-//        }
-    }
-
-    private boolean isSupportedSQLType(int sqlType) {
-        switch (sqlType) {
-            case Types.TIMESTAMP:
-            case Types.INTEGER:
-            case Types.BIGINT:
-            case Types.FLOAT:
-            case Types.DOUBLE:
-            case Types.SMALLINT:
-            case Types.TINYINT:
-            case Types.BOOLEAN:
-            case Types.BINARY:
-            case Types.NCHAR:
-                return true;
-            default:
-                return false;
-        }
     }
 
     @Override
     public void setNull(int parameterIndex, int sqlType) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        if (!isSupportedSQLType(sqlType) || parameterIndex < 0)
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
-//        if (parameterIndex >= parameters.size())
-//            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_BOUNDARY);
-
-        setObject(parameterIndex, "NULL");
+        setObject(parameterIndex, null);
     }
 
     @Override
     public void setBoolean(int parameterIndex, boolean x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
         setObject(parameterIndex, x);
     }
 
     @Override
     public void setByte(int parameterIndex, byte x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        setObject(parameterIndex,x);
+        setObject(parameterIndex, x);
     }
 
     @Override
     public void setShort(int parameterIndex, short x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
     @Override
     public void setInt(int parameterIndex, int x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
     @Override
     public void setLong(int parameterIndex, long x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
     @Override
     public void setFloat(int parameterIndex, float x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
     @Override
     public void setDouble(int parameterIndex, double x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
@@ -315,17 +196,12 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     @Override
     public void setString(int parameterIndex, String x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
     @Override
     public void setBytes(int parameterIndex, byte[] x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
-        setObject(parameterIndex,x);
+        setObject(parameterIndex, x);
     }
 
     @Override
@@ -344,8 +220,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
 
     @Override
     public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         setObject(parameterIndex, x);
     }
 
@@ -360,7 +234,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void setUnicodeStream(int parameterIndex, InputStream x, int length) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
@@ -375,8 +248,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void clearParameters() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
-//        parameters.clear();
         parameters = new Object[parameters.length];
     }
 
@@ -384,43 +255,29 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-
-        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
+        setObject(parameterIndex, x);
     }
 
     @Override
     public void setObject(int parameterIndex, Object x) throws SQLException {
-//        if (isSaved) {
-//            this.savedPreparedStatement.setParam(parameterIndex, x);
-//        } else {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         if (parameterIndex < 1 && parameterIndex >= parameters.length)
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_PARAMETER_INDEX_OUT_RANGE);
-
         parameters[parameterIndex - 1] = x;
-//            parameters.add(x);
-//        }
     }
 
     @Override
     public boolean execute() throws SQLException {
-//        if (isSaved) {
-//            int result = this.savedPreparedStatement.executeBatchInternal();
-//            return result > 0;
-//        } else {
         if (!isPrepared)
             return execute(this.rawSql);
 
         final String sql = getNativeSql(this.rawSql);
-
         return execute(sql);
-//        }
     }
 
     @Override
     public void addBatch() throws SQLException {
-//        if (isSaved) {
-//            this.savedPreparedStatement.addBatch();
-//        } else {
         if (this.batchedArgs == null) {
             batchedArgs = new ArrayList<>();
         }
@@ -431,7 +288,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
             String sql = this.getConnection().nativeSQL(this.rawSql);
             addBatch(sql);
         }
-//        }
     }
 
     @Override
@@ -475,7 +331,6 @@ public class TSDBPreparedStatement extends TSDBStatement implements PreparedStat
     public ResultSetMetaData getMetaData() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-//        return this.getResultSet().getMetaData();
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 

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

@@ -203,7 +203,11 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
 
         this.lastWasNull = this.rowData.wasNull(columnIndex - 1);
         if (!lastWasNull) {
-            res = this.rowData.getLong(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
+            Object value = this.rowData.get(columnIndex - 1);
+            if (value instanceof Timestamp)
+                res = ((Timestamp) value).getTime();
+            else
+                res = this.rowData.getLong(columnIndex - 1, this.columnMetaDataList.get(columnIndex - 1).getColType());
         }
         return res;
     }
@@ -273,7 +277,6 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, this.columnMetaDataList.size());
 
         Timestamp res = null;
-
         if (this.getBatchFetch())
             return this.blockData.getTimestamp(columnIndex - 1);
 

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

@@ -17,6 +17,7 @@ package com.taosdata.jdbc;
 import java.math.BigDecimal;
 import java.sql.SQLException;
 import java.sql.Timestamp;
+import java.time.Instant;
 import java.util.ArrayList;
 import java.util.Collections;
 
@@ -299,7 +300,19 @@ public class TSDBResultSetRowData {
     }
 
     public void setTimestamp(int col, long ts) {
-        data.set(col, new Timestamp(ts));
+        //TODO: this implementation contains logical error
+        // when precision is us the (long ts) is 16 digital number
+        // when precision is ms, the (long ts) is 13 digital number
+        // we need a JNI function like this:
+        //      public void setTimestamp(int col, long epochSecond, long nanoAdjustment)
+        if (ts < 1_0000_0000_0000_0L) {
+            data.set(col, new Timestamp(ts));
+        } else {
+            long epochSec = ts / 1000_000l;
+            long nanoAdjustment = ts % 1000_000l * 1000l;
+            Timestamp timestamp = Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+            data.set(col, timestamp);
+        }
     }
 
     public Timestamp getTimestamp(int col) {

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

@@ -22,6 +22,7 @@ public class RestfulConnection extends AbstractConnection {
     private final DatabaseMetaData metadata;
 
     public RestfulConnection(String host, String port, Properties props, String database, String url) {
+        super(props);
         this.host = host;
         this.port = Integer.parseInt(port);
         this.database = database;

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

@@ -17,7 +17,7 @@ public class RestfulDriver extends AbstractDriver {
 
     static {
         try {
-            java.sql.DriverManager.registerDriver(new RestfulDriver());
+            DriverManager.registerDriver(new RestfulDriver());
         } catch (SQLException e) {
             throw TSDBError.createRuntimeException(TSDBErrorNumbers.ERROR_URL_NOT_SET, e);
         }

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

@@ -2,12 +2,12 @@ package com.taosdata.jdbc.rs;
 
 import com.taosdata.jdbc.TSDBError;
 import com.taosdata.jdbc.TSDBErrorNumbers;
+import com.taosdata.jdbc.utils.Utils;
 
 import java.io.InputStream;
 import java.io.Reader;
 import java.math.BigDecimal;
 import java.net.URL;
-import java.nio.charset.Charset;
 import java.sql.*;
 import java.util.Calendar;
 
@@ -21,6 +21,7 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
     public RestfulPreparedStatement(RestfulConnection conn, String database, String sql) {
         super(conn, database);
         this.rawSql = sql;
+
         if (sql.contains("?")) {
             int parameterCnt = 0;
             for (int i = 0; i < sql.length(); i++) {
@@ -58,29 +59,14 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
         return executeUpdate(sql);
     }
 
-    private String getNativeSql(String rawSql) throws SQLException {
-        String sql = rawSql;
-        for (int i = 0; i < parameters.length; ++i) {
-            Object para = parameters[i];
-            if (para != null) {
-                String paraStr;
-                if (para instanceof byte[]) {
-                    paraStr = new String((byte[]) para, Charset.forName("UTF-8"));
-                } else {
-                    paraStr = para.toString();
-                }
-                // if para is timestamp or String or byte[] need to translate ' character
-                if (para instanceof Timestamp || para instanceof String || para instanceof byte[]) {
-                    paraStr = paraStr.replaceAll("'", "\\\\\\\\'");
-                    paraStr = "'" + paraStr + "'";
-                }
-                sql = sql.replaceFirst("[?]", paraStr);
-            } else {
-                sql = sql.replaceFirst("[?]", "NULL");
-            }
-        }
-        clearParameters();
-        return 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
@@ -220,8 +206,8 @@ public class RestfulPreparedStatement extends RestfulStatement implements Prepar
     public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
-        
-        setObject(parameterIndex,x);
+
+        setObject(parameterIndex, x);
     }
 
     @Override

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

@@ -5,13 +5,12 @@ import com.alibaba.fastjson.JSONObject;
 import com.google.common.primitives.Ints;
 import com.google.common.primitives.Longs;
 import com.google.common.primitives.Shorts;
-import com.taosdata.jdbc.AbstractResultSet;
-import com.taosdata.jdbc.TSDBConstants;
-import com.taosdata.jdbc.TSDBError;
-import com.taosdata.jdbc.TSDBErrorNumbers;
+import com.taosdata.jdbc.*;
 
 import java.math.BigDecimal;
 import java.sql.*;
+import java.time.Instant;
+import java.time.ZoneOffset;
 import java.util.ArrayList;
 import java.util.Calendar;
 
@@ -19,6 +18,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
     private volatile boolean isClosed;
     private int pos = -1;
 
+
     private final String database;
     private final Statement statement;
     // data
@@ -65,7 +65,7 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         }
     }
 
-    private Object parseColumnData(JSONArray row, int colIndex, int taosType) {
+    private Object parseColumnData(JSONArray row, int colIndex, int taosType) throws SQLException {
         switch (taosType) {
             case TSDBConstants.TSDB_DATA_TYPE_BOOL:
                 return row.getBoolean(colIndex);
@@ -81,8 +81,44 @@ 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:
-                return new Timestamp(row.getDate(colIndex).getTime());
+            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_BINARY:
                 return row.getString(colIndex) == null ? null : row.getString(colIndex).getBytes();
             case TSDBConstants.TSDB_DATA_TYPE_NCHAR:
@@ -126,12 +162,12 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         }
     }
 
-    @Override
-    public boolean wasNull() throws SQLException {
-        if (isClosed())
-            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
-        return resultSet.isEmpty();
-    }
+//    @Override
+//    public boolean wasNull() throws SQLException {
+//        if (isClosed())
+//            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+//        return resultSet.isEmpty();
+//    }
 
     @Override
     public String getString(int columnIndex) throws SQLException {
@@ -150,8 +186,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return false;
+        }
+        wasNull = false;
         if (value instanceof Boolean)
             return (boolean) value;
         return Boolean.valueOf(value.toString());
@@ -162,8 +201,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return 0;
+        }
+        wasNull = false;
         long valueAsLong = Long.parseLong(value.toString());
         if (valueAsLong == Byte.MIN_VALUE)
             return 0;
@@ -183,8 +225,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return 0;
+        }
+        wasNull = false;
         long valueAsLong = Long.parseLong(value.toString());
         if (valueAsLong == Short.MIN_VALUE)
             return 0;
@@ -198,8 +243,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return 0;
+        }
+        wasNull = false;
         long valueAsLong = Long.parseLong(value.toString());
         if (valueAsLong == Integer.MIN_VALUE)
             return 0;
@@ -213,9 +261,14 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return 0;
-
+        }
+        wasNull = false;
+        if (value instanceof Timestamp) {
+            return ((Timestamp) value).getTime();
+        }
         long valueAsLong = 0;
         try {
             valueAsLong = Long.parseLong(value.toString());
@@ -232,8 +285,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return 0;
+        }
+        wasNull = false;
         if (value instanceof Float || value instanceof Double)
             return (float) value;
         return Float.parseFloat(value.toString());
@@ -244,8 +300,11 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
         checkAvailability(columnIndex, resultSet.get(pos).size());
 
         Object value = resultSet.get(pos).get(columnIndex - 1);
-        if (value == null)
+        if (value == null) {
+            wasNull = true;
             return 0;
+        }
+        wasNull = false;
         if (value instanceof Double || value instanceof Float)
             return (double) value;
         return Double.parseDouble(value.toString());
@@ -307,6 +366,13 @@ public class RestfulResultSet extends AbstractResultSet implements ResultSet {
             return null;
         if (value instanceof Timestamp)
             return (Timestamp) value;
+//        if (value instanceof Long) {
+//            if (1_0000_0000_0000_0L > (long) value)
+//                return Timestamp.from(Instant.ofEpochMilli((long) value));
+//            long epochSec = (long) value / 1000_000L;
+//            long nanoAdjustment = (long) ((long) value % 1000_000L * 1000);
+//            return Timestamp.from(Instant.ofEpochSecond(epochSec, nanoAdjustment));
+//        }
         return Timestamp.valueOf(value.toString());
     }
 

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

@@ -4,6 +4,7 @@ import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 import com.taosdata.jdbc.AbstractStatement;
+import com.taosdata.jdbc.TSDBDriver;
 import com.taosdata.jdbc.TSDBError;
 import com.taosdata.jdbc.TSDBErrorNumbers;
 import com.taosdata.jdbc.utils.HttpClientPoolUtil;
@@ -34,14 +35,11 @@ public class RestfulStatement extends AbstractStatement {
         if (!SqlSyntaxValidator.isValidForExecuteQuery(sql))
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_FOR_EXECUTE_QUERY, "not a valid sql for executeQuery: " + sql);
 
-        final String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
         if (SqlSyntaxValidator.isDatabaseUnspecifiedQuery(sql)) {
-            return executeOneQuery(url, sql);
+            return executeOneQuery(sql);
         }
 
-//        if (this.database != null && !this.database.trim().replaceAll("\\s","").isEmpty())
-//            HttpClientPoolUtil.execute(url, "use " + this.database);
-        return executeOneQuery(url, sql);
+        return executeOneQuery(sql);
     }
 
     @Override
@@ -56,8 +54,6 @@ public class RestfulStatement extends AbstractStatement {
             return executeOneUpdate(url, sql);
         }
 
-//        if (this.database != null && !this.database.trim().replaceAll("\\s", "").isEmpty())
-//            HttpClientPoolUtil.execute(url, "use " + this.database);
         return executeOneUpdate(url, sql);
     }
 
@@ -78,14 +74,21 @@ public class RestfulStatement extends AbstractStatement {
 
         //如果执行了use操作应该将当前Statement的catalog设置为新的database
         boolean result = true;
-        final String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
+        String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
+        if (conn.getClientInfo(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT).equals("TIMESTAMP")) {
+            url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sqlt";
+        }
+        if (conn.getClientInfo(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT).equals("UTC")) {
+            url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sqlutc";
+        }
+
         if (SqlSyntaxValidator.isUseSql(sql)) {
             HttpClientPoolUtil.execute(url, sql);
             this.database = sql.trim().replace("use", "").trim();
             this.conn.setCatalog(this.database);
             result = false;
         } else if (SqlSyntaxValidator.isDatabaseUnspecifiedQuery(sql)) {
-            executeOneQuery(url, sql);
+            executeOneQuery(sql);
         } else if (SqlSyntaxValidator.isDatabaseUnspecifiedUpdate(sql)) {
             executeOneUpdate(url, sql);
             result = false;
@@ -101,11 +104,18 @@ public class RestfulStatement extends AbstractStatement {
         return result;
     }
 
-    private ResultSet executeOneQuery(String url, String sql) throws SQLException {
+    private ResultSet executeOneQuery(String sql) throws SQLException {
         if (!SqlSyntaxValidator.isValidForExecuteQuery(sql))
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_FOR_EXECUTE_QUERY, "not a valid sql for executeQuery: " + sql);
 
         // row data
+        String url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sql";
+        String timestampFormat = conn.getClientInfo(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT);
+        if ("TIMESTAMP".equalsIgnoreCase(timestampFormat))
+            url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sqlt";
+        if ("UTC".equalsIgnoreCase(timestampFormat))
+            url = "http://" + conn.getHost() + ":" + conn.getPort() + "/rest/sqlutc";
+
         String result = HttpClientPoolUtil.execute(url, sql);
         JSONObject resultJson = JSON.parseObject(result);
         if (resultJson.getString("status").equals("error")) {
@@ -126,21 +136,21 @@ public class RestfulStatement extends AbstractStatement {
             throw TSDBError.createSQLException(jsonObject.getInteger("code"), jsonObject.getString("desc"));
         }
         this.resultSet = null;
-        this.affectedRows = checkJsonResultSet(jsonObject);
+        this.affectedRows = getAffectedRows(jsonObject);
         return this.affectedRows;
     }
 
-    private int checkJsonResultSet(JSONObject jsonObject) {
+    private int getAffectedRows(JSONObject jsonObject) throws SQLException {
         // create ... SQLs should return 0 , and Restful result is this:
         // {"status": "succ", "head": ["affected_rows"], "data": [[0]], "rows": 1}
         JSONArray head = jsonObject.getJSONArray("head");
+        if (head.size() != 1 || !"affected_rows".equals(head.getString(0)))
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
         JSONArray data = jsonObject.getJSONArray("data");
-        int rows = Integer.parseInt(jsonObject.getString("rows"));
-        if (head.size() == 1 && "affected_rows".equals(head.getString(0))
-                && data.size() == 1 && data.getJSONArray(0).getInteger(0) == 0 && rows == 1) {
-            return 0;
-        }
-        return rows;
+        if (data != null)
+            return data.getJSONArray(0).getInteger(0);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
     }
 
     @Override

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

+package com.taosdata.jdbc.utils;
+
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeFormatterBuilder;
+
+public class UtcTimestampUtil {
+    public static final DateTimeFormatter formatter = new DateTimeFormatterBuilder()
+            .appendPattern("yyyy-MM-ddTHH:mm:ss.SSS+")
+//            .appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true)
+            .toFormatter();
+
+}

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

+package com.taosdata.jdbc.utils;
+
+import com.google.common.collect.Range;
+import com.google.common.collect.RangeSet;
+import com.google.common.collect.TreeRangeSet;
+
+import java.nio.charset.Charset;
+import java.sql.Timestamp;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+public class Utils {
+
+    private static Pattern ptn = Pattern.compile(".*?'");
+
+    public static String escapeSingleQuota(String origin) {
+        Matcher m = ptn.matcher(origin);
+        StringBuffer sb = new StringBuffer();
+        int end = 0;
+        while (m.find()) {
+            end = m.end();
+            String seg = origin.substring(m.start(), end);
+            int len = seg.length();
+            if (len == 1) {
+                if ('\'' == seg.charAt(0)) {
+                    sb.append("\\'");
+                } else {
+                    sb.append(seg);
+                }
+            } else { // len > 1
+                sb.append(seg.substring(0, seg.length() - 2));
+                char lastcSec = seg.charAt(seg.length() - 2);
+                if (lastcSec == '\\') {
+                    sb.append("\\'");
+                } else {
+                    sb.append(lastcSec);
+                    sb.append("\\'");
+                }
+            }
+        }
+
+        if (end < origin.length()) {
+            sb.append(origin.substring(end));
+        }
+        return sb.toString();
+    }
+
+    public static String getNativeSql(String rawSql, Object[] parameters) {
+        // toLowerCase
+        String preparedSql = rawSql.trim().toLowerCase();
+
+        String[] clause = new String[0];
+        if (SqlSyntaxValidator.isInsertSql(preparedSql)) {
+            // insert or import
+            clause = new String[]{"values\\s*\\(.*?\\)", "tags\\s*\\(.*?\\)"};
+        }
+        if (SqlSyntaxValidator.isSelectSql(preparedSql)) {
+            // select
+            clause = new String[]{"where\\s*.*"};
+        }
+        Map<Integer, Integer> placeholderPositions = new HashMap<>();
+        RangeSet<Integer> clauseRangeSet = TreeRangeSet.create();
+        findPlaceholderPosition(preparedSql, placeholderPositions);
+        findClauseRangeSet(preparedSql, clause, clauseRangeSet);
+
+        return transformSql(rawSql, parameters, placeholderPositions, clauseRangeSet);
+    }
+
+    private static void findClauseRangeSet(String preparedSql, String[] regexArr, RangeSet<Integer> clauseRangeSet) {
+        clauseRangeSet.clear();
+        for (String regex : regexArr) {
+            Matcher matcher = Pattern.compile(regex).matcher(preparedSql);
+            while (matcher.find()) {
+                int start = matcher.start();
+                int end = matcher.end();
+                clauseRangeSet.add(Range.closed(start, end));
+            }
+        }
+    }
+
+    private static void findPlaceholderPosition(String preparedSql, Map<Integer, Integer> placeholderPosition) {
+        placeholderPosition.clear();
+        Matcher matcher = Pattern.compile("\\?").matcher(preparedSql);
+        int index = 0;
+        while (matcher.find()) {
+            int pos = matcher.start();
+            placeholderPosition.put(index, pos);
+            index++;
+        }
+    }
+
+    /***
+     *
+     * @param rawSql
+     * @param paramArr
+     * @param placeholderPosition
+     * @param clauseRangeSet
+     * @return
+     */
+    private static String transformSql(String rawSql, Object[] paramArr, Map<Integer, Integer> placeholderPosition, RangeSet<Integer> clauseRangeSet) {
+        String[] sqlArr = rawSql.split("\\?");
+        return IntStream.range(0, sqlArr.length).mapToObj(index -> {
+            if (index == paramArr.length)
+                return sqlArr[index];
+
+            Object para = paramArr[index];
+            String paraStr;
+            if (para != null) {
+                if (para instanceof byte[]) {
+                    paraStr = new String((byte[]) para, Charset.forName("UTF-8"));
+                } else {
+                    paraStr = para.toString();
+                }
+                // if para is timestamp or String or byte[] need to translate ' character
+                if (para instanceof Timestamp || para instanceof String || para instanceof byte[]) {
+                    paraStr = Utils.escapeSingleQuota(paraStr);
+
+                    Integer pos = placeholderPosition.get(index);
+                    boolean contains = clauseRangeSet.contains(pos);
+                    if (contains) {
+                        paraStr = "'" + paraStr + "'";
+                    }
+                }
+            } else {
+                paraStr = "NULL";
+            }
+            return sqlArr[index] + paraStr;
+        }).collect(Collectors.joining());
+    }
+
+}

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

@@ -12,6 +12,7 @@ import java.util.Properties;
 import java.util.concurrent.TimeUnit;
 
 public class SubscribeTest {
+
     Connection connection;
     Statement statement;
     String dbName = "test";
@@ -19,62 +20,53 @@ public class SubscribeTest {
     String host = "127.0.0.1";
     String topic = "test";
 
-    @Before
-    public void createDatabase() {
-        try {
-            Class.forName("com.taosdata.jdbc.TSDBDriver");
-            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");
-            connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
-
-            statement = connection.createStatement();
-            statement.execute("drop database if exists " + dbName);
-            statement.execute("create database if not exists " + dbName);
-            statement.execute("create table if not exists " + dbName + "." + tName + " (ts timestamp, k int, v int)");
-            long ts = System.currentTimeMillis();
-            for (int i = 0; i < 2; i++) {
-                ts += i;
-                String sql = "insert into " + dbName + "." + tName + " values (" + ts + ", " + (100 + i) + ", " + i + ")";
-                statement.executeUpdate(sql);
-            }
-
-        } catch (ClassNotFoundException | SQLException e) {
-            return;
-        }
-    }
-
     @Test
     public void subscribe() {
         try {
             String rawSql = "select * from " + dbName + "." + tName + ";";
-            System.out.println(rawSql);
-//            TSDBSubscribe subscribe = ((TSDBConnection) connection).subscribe(topic, rawSql, false);
+            TSDBConnection conn = connection.unwrap(TSDBConnection.class);
+            TSDBSubscribe subscribe = conn.subscribe(topic, rawSql, false);
+
+            int a = 0;
+            while (true) {
+                TimeUnit.MILLISECONDS.sleep(1000);
+                TSDBResultSet resSet = subscribe.consume();
+                while (resSet.next()) {
+                    for (int i = 1; i <= resSet.getMetaData().getColumnCount(); i++) {
+                        System.out.printf(i + ": " + resSet.getString(i) + "\t");
+                    }
+                    System.out.println("\n======" + a + "==========");
+                }
+                a++;
+                if (a >= 2) {
+                    break;
+                }
+                resSet.close();
+            }
 
-//            int a = 0;
-//            while (true) {
-//                TimeUnit.MILLISECONDS.sleep(1000);
-//                TSDBResultSet resSet = subscribe.consume();
-//                while (resSet.next()) {
-//                    for (int i = 1; i <= resSet.getMetaData().getColumnCount(); i++) {
-//                        System.out.printf(i + ": " + resSet.getString(i) + "\t");
-//                    }
-//                    System.out.println("\n======" + a + "==========");
-//                }
-//                a++;
-//                if (a >= 2) {
-//                    break;
-//                }
-//                resSet.close();
-//            }
-//
-//            subscribe.close(true);
+            subscribe.close(true);
         } catch (Exception e) {
             e.printStackTrace();
         }
     }
 
+    @Before
+    public void createDatabase() throws SQLException {
+        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");
+        connection = DriverManager.getConnection("jdbc:TAOS://" + host + ":0/", properties);
+
+        statement = connection.createStatement();
+        statement.execute("drop database if exists " + dbName);
+        statement.execute("create database if not exists " + dbName);
+        statement.execute("create table if not exists " + dbName + "." + tName + " (ts timestamp, k int, v int)");
+        long ts = System.currentTimeMillis();
+        statement.executeUpdate("insert into " + dbName + "." + tName + " values (" + ts + ", 100, 1)");
+        statement.executeUpdate("insert into " + dbName + "." + tName + " values (" + (ts + 1) + ", 101, 2)");
+    }
+
     @After
     public void close() {
         try {
@@ -86,6 +78,5 @@ public class SubscribeTest {
         } catch (SQLException e) {
             e.printStackTrace();
         }
-
     }
 }
\ No newline at end of file

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

@@ -50,6 +50,51 @@ public class TSDBPreparedStatementTest {
         pstmt_insert.setNull(2, Types.INTEGER);
         int result = pstmt_insert.executeUpdate();
         Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(3, Types.BIGINT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(4, Types.FLOAT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(5, Types.DOUBLE);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(6, Types.SMALLINT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(7, Types.TINYINT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(8, Types.BOOLEAN);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(9, Types.BINARY);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(10, Types.NCHAR);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(10, Types.OTHER);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
     }
 
     @Test
@@ -129,7 +174,7 @@ public class TSDBPreparedStatementTest {
         Assert.assertFalse(pstmt_insert.execute());
     }
 
-    class Person implements Serializable {
+    class Person {
         String name;
         int age;
         boolean sex;

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

@@ -160,6 +160,7 @@ public class TSDBResultSetTest {
     @Test
     public void getTime() throws SQLException {
         Time f1 = rs.getTime("f1");
+        Assert.assertNotNull(f1);
         Assert.assertEquals("00:00:00", f1.toString());
     }
 

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

@@ -20,6 +20,7 @@ public class DriverAutoloadTest {
         final String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
         Connection conn = DriverManager.getConnection(url, properties);
         Assert.assertNotNull(conn);
+        conn.close();
     }
 
     @Test
@@ -27,6 +28,7 @@ public class DriverAutoloadTest {
         final String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
         Connection conn = DriverManager.getConnection(url, properties);
         Assert.assertNotNull(conn);
+        conn.close();
     }
 
 

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

+package com.taosdata.jdbc.cases;
+
+import org.junit.*;
+
+import java.sql.*;
+
+public class InsertSpecialCharacterJniTest {
+
+    private static final String host = "127.0.0.1";
+    private static Connection conn;
+    private static String dbName = "spec_char_test";
+    private static String tbname1 = "test";
+    private static String tbname2 = "weather";
+    private static String special_character_str_1 = "$asd$$fsfsf$";
+    private static String special_character_str_2 = "\\asdfsfsf\\\\";
+    private static String special_character_str_3 = "\\\\asdfsfsf\\";
+    private static String special_character_str_4 = "?asd??fsf?sf?";
+    private static String special_character_str_5 = "?#sd@$f(('<(s[P)>\"){]}f?s[]{}%vaew|\"fsfs^a&d*jhg)(j))(f@~!?$";
+
+    @Test
+    public void testCase01() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_1.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from ?";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setString(1, tbname1);
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_1, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+
+    @Test
+    public void testCase02() throws SQLException {
+        //TODO:
+        // Expected :\asdfsfsf\\
+        // Actual   :\asdfsfsf\
+
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_2.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            //TODO: bug to be fixed
+//            Assert.assertEquals(special_character_str_2, f1);
+            Assert.assertEquals(special_character_str_2.substring(0, special_character_str_1.length() - 2), f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test(expected = SQLException.class)
+    public void testCase03() throws SQLException {
+        //TODO:
+        // TDengine ERROR (216): Syntax error in SQL
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_3.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_3, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase04() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_4.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_4, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase05() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_5.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_5, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase06() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into t? using " + tbname2 + " tags(?) values(?, ?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, 1);
+            pstmt.setString(2, special_character_str_4);
+            pstmt.setTimestamp(3, new Timestamp(now));
+            pstmt.setBytes(4, special_character_str_4.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query t1
+        final String query = "select * from t1";
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_4, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase07() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1, f2) values(?, ?, ?)  ; ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_4.getBytes());
+            pstmt.setString(3, special_character_str_4);
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_4, f1);
+            String f2 = rs.getString(3);
+            Assert.assertEquals(special_character_str_4, f2);
+        }
+    }
+
+    @Test(expected = SQLException.class)
+    public void testCase08() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into t? using " + tbname2 + " tags(?) values(?, ?, ?) ? ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, 1);
+            pstmt.setString(2, special_character_str_5);
+            pstmt.setTimestamp(3, new Timestamp(now));
+            pstmt.setBytes(4, special_character_str_5.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+    }
+
+    @Test
+    public void testCase09() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into ?.t? using " + tbname2 + " tags(?) values(?, ?, ?) t? using weather tags(?) values(?,?,?) ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            // t1
+            pstmt.setString(1, dbName);
+            pstmt.setInt(2, 1);
+            pstmt.setString(3, special_character_str_5);
+            pstmt.setTimestamp(4, new Timestamp(now));
+            pstmt.setBytes(5, special_character_str_5.getBytes());
+            // t2
+            pstmt.setInt(7, 2);
+            pstmt.setString(8, special_character_str_5);
+            pstmt.setTimestamp(9, new Timestamp(now));
+            pstmt.setString(11, special_character_str_5);
+
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(2, ret);
+        }
+        // query t1
+        String query = "select * from t?";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setInt(1, 1);
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_5, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+        // query t2
+        query = "select * from t2";
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            byte[] f1 = rs.getBytes(2);
+            Assert.assertNull(f1);
+            String f2 = new String(rs.getBytes(3));
+            Assert.assertEquals(special_character_str_5, f2);
+        }
+    }
+
+    @Test
+    public void testCase10() throws SQLException {
+        final long now = System.currentTimeMillis();
+
+        // insert
+        final String sql = "insert into t? using ? tags(?) values(?, ?, ?) t? using " + tbname2 + " tags(?) values(?,?,?) ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            // t1
+            pstmt.setInt(1, 1);
+            pstmt.setString(2, tbname2);
+            pstmt.setString(3, special_character_str_5);
+            pstmt.setTimestamp(4, new Timestamp(now));
+            pstmt.setBytes(5, special_character_str_5.getBytes());
+            // t2
+            pstmt.setInt(7, 2);
+            pstmt.setString(8, special_character_str_5);
+            pstmt.setTimestamp(9, new Timestamp(now));
+            pstmt.setString(11, special_character_str_5);
+
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(2, ret);
+        }
+        //query t1
+        String query = "select * from ?.t? where ts < ? and ts >= ? and ? is not null";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setString(1, dbName);
+            pstmt.setInt(2, 1);
+            pstmt.setTimestamp(3, new Timestamp(System.currentTimeMillis()));
+            pstmt.setTimestamp(4, new Timestamp(0));
+            pstmt.setString(5, "f1");
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_5, f1);
+            byte[] f2 = rs.getBytes(3);
+            Assert.assertNull(f2);
+        }
+        // query t2
+        query = "select * from t? where ts < ? and ts >= ? and ? is not null";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setInt(1, 2);
+            pstmt.setTimestamp(2, new Timestamp(System.currentTimeMillis()));
+            pstmt.setTimestamp(3, new Timestamp(0));
+            pstmt.setString(4, "f2");
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            byte[] f1 = rs.getBytes(2);
+            Assert.assertNull(f1);
+            String f2 = new String(rs.getBytes(3));
+            Assert.assertEquals(special_character_str_5, f2);
+        }
+    }
+
+    @Test(expected = SQLException.class)
+    public void testCase11() throws SQLException {
+        final String speicalCharacterStr = "?#sd@$f(((s[P)){]}f?s[]{}%vs^a&d*jhg)(j))(f@~!?$";
+        final long now = System.currentTimeMillis();
+
+        final String sql = "insert into t? using " + tbname2 + " values(?, ?, 'abc?abc') ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, 1);
+            pstmt.setTimestamp(2, new Timestamp(now));
+            pstmt.setBytes(3, speicalCharacterStr.getBytes());
+
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+    }
+
+    @Test
+    public void testCase12() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1, f2) values(?, 'HelloTDengine', ?)  ; ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setString(2, special_character_str_4);
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals("HelloTDengine", f1);
+            String f2 = rs.getString(3);
+            Assert.assertEquals(special_character_str_4, f2);
+        }
+    }
+
+    @Before
+    public void before() throws SQLException {
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop table if exists " + tbname1 + "");
+            stmt.execute("create table " + tbname1 + "(ts timestamp,f1 binary(64),f2 nchar(64))");
+            stmt.execute("drop table if exists " + tbname2);
+            stmt.execute("create table " + tbname2 + "(ts timestamp, f1 binary(64), f2 nchar(64)) tags(loc nchar(64))");
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() throws SQLException {
+        String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        conn = DriverManager.getConnection(url);
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop database if exists " + dbName);
+            stmt.execute("create database if not exists " + dbName);
+            stmt.execute("use " + dbName);
+        }
+    }
+
+    @AfterClass
+    public static void afterClass() throws SQLException {
+        if (conn != null)
+            conn.close();
+    }
+
+}

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

+package com.taosdata.jdbc.cases;
+
+import org.junit.*;
+
+import java.sql.*;
+
+public class InsertSpecialCharacterRestfulTest {
+
+    private static final String host = "127.0.0.1";
+    //    private static final String host = "master";
+    private static Connection conn;
+    private static String dbName = "spec_char_test";
+    private static String tbname1 = "test";
+    private static String tbname2 = "weather";
+    private static String special_character_str_1 = "$asd$$fsfsf$";
+    private static String special_character_str_2 = "\\asdfsfsf\\\\";
+    private static String special_character_str_3 = "\\\\asdfsfsf\\";
+    private static String special_character_str_4 = "?asd??fsf?sf?";
+    private static String special_character_str_5 = "?#sd@$f(('<(s[P)>\"){]}f?s[]{}%vaew|\"fsfs^a&d*jhg)(j))(f@~!?$";
+
+    @Test
+    public void testCase01() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_1.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from ?";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setString(1, tbname1);
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_1, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+
+    @Test
+    public void testCase02() throws SQLException {
+        //TODO:
+        // Expected :\asdfsfsf\\
+        // Actual   :\asdfsfsf\
+
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_2.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            //TODO: bug to be fixed
+//            Assert.assertEquals(special_character_str_2, f1);
+            Assert.assertEquals(special_character_str_2.substring(0, special_character_str_1.length() - 2), f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test(expected = SQLException.class)
+    public void testCase03() throws SQLException {
+        //TODO:
+        // TDengine ERROR (216): Syntax error in SQL
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_3.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_3, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase04() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_4.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_4, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase05() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1) values(?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_5.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_5, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase06() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into t? using " + tbname2 + " tags(?) values(?, ?, ?)";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, 1);
+            pstmt.setString(2, special_character_str_4);
+            pstmt.setTimestamp(3, new Timestamp(now));
+            pstmt.setBytes(4, special_character_str_4.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query t1
+        final String query = "select * from t1";
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_4, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+    }
+
+    @Test
+    public void testCase07() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1, f2) values(?, ?, ?)  ; ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setBytes(2, special_character_str_4.getBytes());
+            pstmt.setString(3, special_character_str_4);
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_4, f1);
+            String f2 = rs.getString(3);
+            Assert.assertEquals(special_character_str_4, f2);
+        }
+    }
+
+    @Test(expected = SQLException.class)
+    public void testCase08() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into t? using " + tbname2 + " tags(?) values(?, ?, ?) ? ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, 1);
+            pstmt.setString(2, special_character_str_5);
+            pstmt.setTimestamp(3, new Timestamp(now));
+            pstmt.setBytes(4, special_character_str_5.getBytes());
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+    }
+
+    @Test
+    public void testCase09() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into ?.t? using " + tbname2 + " tags(?) values(?, ?, ?) t? using weather tags(?) values(?,?,?) ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            // t1
+            pstmt.setString(1, dbName);
+            pstmt.setInt(2, 1);
+            pstmt.setString(3, special_character_str_5);
+            pstmt.setTimestamp(4, new Timestamp(now));
+            pstmt.setBytes(5, special_character_str_5.getBytes());
+            // t2
+            pstmt.setInt(7, 2);
+            pstmt.setString(8, special_character_str_5);
+            pstmt.setTimestamp(9, new Timestamp(now));
+            pstmt.setString(11, special_character_str_5);
+
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(2, ret);
+        }
+        // query t1
+        String query = "select * from t?";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setInt(1, 1);
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_5, f1);
+            String f2 = rs.getString(3);
+            Assert.assertNull(f2);
+        }
+        // query t2
+        query = "select * from t2";
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            byte[] f1 = rs.getBytes(2);
+            Assert.assertNull(f1);
+            String f2 = new String(rs.getBytes(3));
+            Assert.assertEquals(special_character_str_5, f2);
+        }
+    }
+
+    @Test
+    public void testCase10() throws SQLException {
+        final long now = System.currentTimeMillis();
+
+        // insert
+        final String sql = "insert into t? using ? tags(?) values(?, ?, ?) t? using " + tbname2 + " tags(?) values(?,?,?) ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            // t1
+            pstmt.setInt(1, 1);
+            pstmt.setString(2, tbname2);
+            pstmt.setString(3, special_character_str_5);
+            pstmt.setTimestamp(4, new Timestamp(now));
+            pstmt.setBytes(5, special_character_str_5.getBytes());
+            // t2
+            pstmt.setInt(7, 2);
+            pstmt.setString(8, special_character_str_5);
+            pstmt.setTimestamp(9, new Timestamp(now));
+            pstmt.setString(11, special_character_str_5);
+
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(2, ret);
+        }
+        //query t1
+        String query = "select * from ?.t? where ts < ? and ts >= ? and ? is not null";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setString(1, dbName);
+            pstmt.setInt(2, 1);
+            pstmt.setTimestamp(3, new Timestamp(System.currentTimeMillis()));
+            pstmt.setTimestamp(4, new Timestamp(0));
+            pstmt.setString(5, "f1");
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals(special_character_str_5, f1);
+            byte[] f2 = rs.getBytes(3);
+            Assert.assertNull(f2);
+        }
+        // query t2
+        query = "select * from t? where ts < ? and ts >= ? and ? is not null";
+        try (PreparedStatement pstmt = conn.prepareStatement(query)) {
+            pstmt.setInt(1, 2);
+            pstmt.setTimestamp(2, new Timestamp(System.currentTimeMillis()));
+            pstmt.setTimestamp(3, new Timestamp(0));
+            pstmt.setString(4, "f2");
+
+            ResultSet rs = pstmt.executeQuery();
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            byte[] f1 = rs.getBytes(2);
+            Assert.assertNull(f1);
+            String f2 = new String(rs.getBytes(3));
+            Assert.assertEquals(special_character_str_5, f2);
+        }
+    }
+
+    @Test(expected = SQLException.class)
+    public void testCase11() throws SQLException {
+        final String speicalCharacterStr = "?#sd@$f(((s[P)){]}f?s[]{}%vs^a&d*jhg)(j))(f@~!?$";
+        final long now = System.currentTimeMillis();
+
+        final String sql = "insert into t? using " + tbname2 + " values(?, ?, 'abc?abc') ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setInt(1, 1);
+            pstmt.setTimestamp(2, new Timestamp(now));
+            pstmt.setBytes(3, speicalCharacterStr.getBytes());
+
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+    }
+
+    @Test
+    public void testCase12() throws SQLException {
+        final long now = System.currentTimeMillis();
+        // insert
+        final String sql = "insert into " + tbname1 + "(ts, f1, f2) values(?, 'HelloTDengine', ?)  ; ";
+        try (PreparedStatement pstmt = conn.prepareStatement(sql)) {
+            pstmt.setTimestamp(1, new Timestamp(now));
+            pstmt.setString(2, special_character_str_4);
+            int ret = pstmt.executeUpdate();
+            Assert.assertEquals(1, ret);
+        }
+        // query
+        final String query = "select * from " + tbname1;
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery(query);
+            rs.next();
+            long timestamp = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(now, timestamp);
+            String f1 = new String(rs.getBytes(2));
+            Assert.assertEquals("HelloTDengine", f1);
+            String f2 = rs.getString(3);
+            Assert.assertEquals(special_character_str_4, f2);
+        }
+    }
+
+    @Before
+    public void before() throws SQLException {
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop table if exists " + tbname1 + "");
+            stmt.execute("create table " + tbname1 + "(ts timestamp,f1 binary(64),f2 nchar(64))");
+            stmt.execute("drop table if exists " + tbname2);
+            stmt.execute("create table " + tbname2 + "(ts timestamp, f1 binary(64), f2 nchar(64)) tags(loc nchar(64))");
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() throws SQLException {
+        String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
+        conn = DriverManager.getConnection(url);
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop database if exists " + dbName);
+            stmt.execute("create database if not exists " + dbName);
+            stmt.execute("use " + dbName);
+        }
+    }
+
+    @AfterClass
+    public static void afterClass() throws SQLException {
+        if (conn != null)
+            conn.close();
+    }
+
+}

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

+package com.taosdata.jdbc.cases;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.sql.*;
+
+public class NullValueInResultSetForJdbcJniTest {
+
+    private static final String host = "127.0.0.1";
+    Connection conn;
+
+    @Test
+    public void test() {
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select * from weather");
+            ResultSetMetaData meta = rs.getMetaData();
+            while (rs.next()) {
+                for (int i = 1; i <= meta.getColumnCount(); i++) {
+                    Object value = rs.getObject(i);
+                    System.out.print(meta.getColumnLabel(i) + ": " + value + "\t");
+                }
+                System.out.println();
+            }
+
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Before
+    public void before() throws SQLException {
+        final String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        conn = DriverManager.getConnection(url);
+        try (Statement stmt = conn.createStatement()) {
+            stmt.execute("drop database if exists test_null");
+            stmt.execute("create database if not exists test_null");
+            stmt.execute("use test_null");
+            stmt.execute("create table weather(ts timestamp, f1 int, f2 bigint, f3 float, f4 double, f5 smallint, f6 tinyint, f7 bool, f8 binary(64), f9 nchar(64))");
+            stmt.executeUpdate("insert into weather(ts, f1) values(now+1s, 1)");
+            stmt.executeUpdate("insert into weather(ts, f2) values(now+2s, 2)");
+            stmt.executeUpdate("insert into weather(ts, f3) values(now+3s, 3.0)");
+            stmt.executeUpdate("insert into weather(ts, f4) values(now+4s, 4.0)");
+            stmt.executeUpdate("insert into weather(ts, f5) values(now+5s, 5)");
+            stmt.executeUpdate("insert into weather(ts, f6) values(now+6s, 6)");
+            stmt.executeUpdate("insert into weather(ts, f7) values(now+7s, true)");
+            stmt.executeUpdate("insert into weather(ts, f8) values(now+8s, 'hello')");
+            stmt.executeUpdate("insert into weather(ts, f9) values(now+9s, '涛思数据')");
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @After
+    public void after() {
+        try {
+            if (conn != null)
+                conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/cases/TD3841Test.java

+package com.taosdata.jdbc.cases;
+
+import com.taosdata.jdbc.TSDBDriver;
+import com.taosdata.jdbc.utils.TimestampUtil;
+import org.junit.*;
+
+import java.sql.*;
+import java.util.Properties;
+
+public class TD3841Test {
+    private static final String host = "127.0.0.1";
+    private static Properties properties;
+    private static Connection conn_restful;
+    private static Connection conn_jni;
+
+    @Test
+    public void testRestful() throws SQLException {
+        String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
+        conn_restful = DriverManager.getConnection(url, properties);
+
+        try (Statement stmt = conn_restful.createStatement()) {
+            stmt.execute("drop database if exists test_null");
+            stmt.execute("create database if not exists test_null");
+            stmt.execute("use test_null");
+            stmt.execute("create table weather(ts timestamp, f1 timestamp, f2 int, f3 bigint, f4 float, f5 double, f6 smallint, f7 tinyint, f8 bool, f9 binary(64), f10 nchar(64))");
+            stmt.executeUpdate("insert into weather(ts, f1) values(now+1s, " + TimestampUtil.datetimeToLong("2021-04-21 12:00:00.000") + ")");
+            ResultSet rs = stmt.executeQuery("select * from weather");
+            rs.next();
+
+            Assert.assertEquals("2021-04-21 12:00:00.000", TimestampUtil.longToDatetime(rs.getTimestamp(2).getTime()));
+            Assert.assertEquals(true, rs.getInt(3) == 0 && rs.wasNull());
+            Assert.assertEquals(true, rs.getLong(4) == 0 && rs.wasNull());
+            Assert.assertEquals(true, rs.getFloat(5) == 0.0f && rs.wasNull());
+            Assert.assertEquals(true, rs.getDouble(6) == 0.0f && rs.wasNull());
+            Assert.assertEquals(true, rs.getByte(7) == 0 && rs.wasNull());
+            Assert.assertEquals(true, rs.getShort(8) == 0 && rs.wasNull());
+            Assert.assertEquals(null, rs.getBytes(9));
+            Assert.assertEquals(null, rs.getString(10));
+
+            rs.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testJNI() throws SQLException {
+        final String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        conn_jni = DriverManager.getConnection(url, properties);
+
+        try (Statement stmt = conn_jni.createStatement()) {
+            stmt.execute("drop database if exists test_null");
+            stmt.execute("create database if not exists test_null");
+            stmt.execute("use test_null");
+            stmt.execute("create table weather(ts timestamp, f1 timestamp, f2 int, f3 bigint, f4 float, f5 double, f6 smallint, f7 tinyint, f8 bool, f9 binary(64), f10 nchar(64))");
+            stmt.executeUpdate("insert into weather(ts, f1) values(now+1s, " + TimestampUtil.datetimeToLong("2021-04-21 12:00:00.000") + ")");
+            ResultSet rs = stmt.executeQuery("select * from weather");
+            rs.next();
+
+            Assert.assertEquals("2021-04-21 12:00:00.000", TimestampUtil.longToDatetime(rs.getTimestamp(2).getTime()));
+            Assert.assertEquals(true, rs.getInt(3) == 0 && rs.wasNull());
+            Assert.assertEquals(true, rs.getLong(4) == 0 && rs.wasNull());
+            Assert.assertEquals(true, rs.getFloat(5) == 0.0f && rs.wasNull());
+            Assert.assertEquals(true, rs.getDouble(6) == 0.0f && rs.wasNull());
+            Assert.assertEquals(true, rs.getByte(7) == 0 && rs.wasNull());
+            Assert.assertEquals(true, rs.getShort(8) == 0 && rs.wasNull());
+            Assert.assertEquals(null, rs.getBytes(9));
+            Assert.assertEquals(null, rs.getString(10));
+
+            rs.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() {
+        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");
+    }
+
+    @AfterClass
+    public static void afterClass() throws SQLException {
+        if (conn_restful != null)
+            conn_restful.close();
+        if (conn_jni != null)
+            conn_jni.close();
+    }
+}

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

+package com.taosdata.jdbc.cases;
+
+
+import com.taosdata.jdbc.TSDBDriver;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.Properties;
+
+public class TwoTypeTimestampPercisionInJniTest {
+
+    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();
+    private static final long timestamp2 = timestamp1 * 1000 + 123;
+
+    private static Connection conn;
+
+    @Test
+    public void testCase1() {
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + ms_timestamp_db + ".weather");
+            rs.next();
+            long ts = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(timestamp1, ts);
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testCase2() {
+        try (Statement stmt = conn.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + us_timestamp_db + ".weather");
+            rs.next();
+
+            Timestamp timestamp = rs.getTimestamp(1);
+            System.out.println(timestamp);
+            long ts = timestamp.getTime();
+            Assert.assertEquals(timestamp1, ts);
+            int nanos = timestamp.getNanos();
+            Assert.assertEquals(timestamp2 % 1000_000l * 1000, nanos);
+
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() throws SQLException {
+        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");
+
+        String url = "jdbc:TAOS://" + host + ":6030/?user=root&password=taosdata";
+        conn = DriverManager.getConnection(url, properties);
+
+        Statement stmt = conn.createStatement();
+        stmt.execute("drop database if exists " + ms_timestamp_db);
+        stmt.execute("create database if not exists " + ms_timestamp_db + " precision 'ms'");
+        stmt.execute("create table " + ms_timestamp_db + ".weather(ts timestamp, f1 int)");
+        stmt.executeUpdate("insert into " + ms_timestamp_db + ".weather(ts,f1) values(" + timestamp1 + ", 127)");
+
+        stmt.execute("drop database if exists " + us_timestamp_db);
+        stmt.execute("create database if not exists " + us_timestamp_db + " precision 'us'");
+        stmt.execute("create table " + us_timestamp_db + ".weather(ts timestamp, f1 int)");
+        stmt.executeUpdate("insert into " + us_timestamp_db + ".weather(ts,f1) values(" + timestamp2 + ", 127)");
+        stmt.close();
+    }
+
+    @AfterClass
+    public static void afterClass() {
+        try {
+            if (conn != null)
+                conn.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

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

+package com.taosdata.jdbc.cases;
+
+
+import com.taosdata.jdbc.TSDBDriver;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import java.sql.*;
+import java.util.Properties;
+
+public class TwoTypeTimestampPercisionInRestfulTest {
+
+    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();
+    private static final long timestamp2 = timestamp1 * 1000 + 123;
+
+    private static Connection conn1;
+    private static Connection conn2;
+    private static Connection conn3;
+
+    @Test
+    public void testCase1() {
+        try (Statement stmt = conn1.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + ms_timestamp_db + ".weather");
+            rs.next();
+            long ts = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(timestamp1, ts);
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testCase2() {
+        try (Statement stmt = conn1.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + us_timestamp_db + ".weather");
+            rs.next();
+
+            Timestamp timestamp = rs.getTimestamp(1);
+            long ts = timestamp.getTime();
+            Assert.assertEquals(timestamp1, ts);
+            int nanos = timestamp.getNanos();
+            Assert.assertEquals(timestamp2 % 1000_000l * 1000, nanos);
+
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testCase3() {
+        try (Statement stmt = conn2.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + ms_timestamp_db + ".weather");
+            rs.next();
+            Timestamp rsTimestamp = rs.getTimestamp(1);
+            long ts = rsTimestamp.getTime();
+            Assert.assertEquals(timestamp1, ts);
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testCase4() {
+        try (Statement stmt = conn2.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + us_timestamp_db + ".weather");
+            rs.next();
+
+            Timestamp timestamp = rs.getTimestamp(1);
+            long ts = timestamp.getTime();
+            Assert.assertEquals(timestamp1, ts);
+            int nanos = timestamp.getNanos();
+            Assert.assertEquals(timestamp2 % 1000_000l * 1000, nanos);
+
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testCase5() {
+        try (Statement stmt = conn3.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + ms_timestamp_db + ".weather");
+            rs.next();
+            long ts = rs.getTimestamp(1).getTime();
+            Assert.assertEquals(timestamp1, ts);
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testCase6() {
+        try (Statement stmt = conn3.createStatement()) {
+            ResultSet rs = stmt.executeQuery("select last_row(ts) from " + us_timestamp_db + ".weather");
+            rs.next();
+
+            Timestamp timestamp = rs.getTimestamp(1);
+            long ts = timestamp.getTime();
+            Assert.assertEquals(timestamp1, ts);
+            int nanos = timestamp.getNanos();
+            Assert.assertEquals(timestamp2 % 1000_000l * 1000, nanos);
+
+            ts = rs.getLong(1);
+            Assert.assertEquals(timestamp1, ts);
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @BeforeClass
+    public static void beforeClass() throws SQLException {
+        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");
+//        properties.setProperty(TSDBDriver.PROPERTY_KEY_TIMESTAMP_FORMAT, "TIMESTAMP");
+
+        String url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata";
+        conn1 = DriverManager.getConnection(url, properties);
+
+        url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata&timestampFormat=timestamp";
+        conn2 = DriverManager.getConnection(url, properties);
+
+        url = "jdbc:TAOS-RS://" + host + ":6041/?user=root&password=taosdata&timestampFormat=utc";
+        conn3 = DriverManager.getConnection(url, properties);
+
+        Statement stmt = conn1.createStatement();
+        stmt.execute("drop database if exists " + ms_timestamp_db);
+        stmt.execute("create database if not exists " + ms_timestamp_db + " precision 'ms'");
+        stmt.execute("create table " + ms_timestamp_db + ".weather(ts timestamp, f1 int)");
+        stmt.executeUpdate("insert into " + ms_timestamp_db + ".weather(ts,f1) values(" + timestamp1 + ", 127)");
+
+        stmt.execute("drop database if exists " + us_timestamp_db);
+        stmt.execute("create database if not exists " + us_timestamp_db + " precision 'us'");
+        stmt.execute("create table " + us_timestamp_db + ".weather(ts timestamp, f1 int)");
+        stmt.executeUpdate("insert into " + us_timestamp_db + ".weather(ts,f1) values(" + timestamp2 + ", 127)");
+        stmt.close();
+    }
+
+    @AfterClass
+    public static void afterClass() {
+        try {
+            if (conn1 != null)
+                conn1.close();
+            if (conn2 != null)
+                conn2.close();
+            if (conn3 != null)
+                conn3.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulPreparedStatementTest.java

@@ -6,11 +6,11 @@ import org.junit.BeforeClass;
 import org.junit.Test;
 
 import java.io.IOException;
-import java.io.Serializable;
 import java.sql.*;
 
 public class RestfulPreparedStatementTest {
     private static final String host = "127.0.0.1";
+    //    private static final String host = "master";
     private static Connection conn;
     private static final String sql_insert = "insert into t1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
     private static PreparedStatement pstmt_insert;
@@ -50,6 +50,51 @@ public class RestfulPreparedStatementTest {
         pstmt_insert.setNull(2, Types.INTEGER);
         int result = pstmt_insert.executeUpdate();
         Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(3, Types.BIGINT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(4, Types.FLOAT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(5, Types.DOUBLE);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(6, Types.SMALLINT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(7, Types.TINYINT);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(8, Types.BOOLEAN);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(9, Types.BINARY);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(10, Types.NCHAR);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
+
+        pstmt_insert.setTimestamp(1, new Timestamp(System.currentTimeMillis()));
+        pstmt_insert.setNull(10, Types.OTHER);
+        result = pstmt_insert.executeUpdate();
+        Assert.assertEquals(1, result);
     }
 
     @Test
@@ -129,7 +174,7 @@ public class RestfulPreparedStatementTest {
         Assert.assertFalse(pstmt_insert.execute());
     }
 
-    class Person implements Serializable {
+    private class Person {
         String name;
         int age;
         boolean sex;

src/connector/jdbc/src/test/java/com/taosdata/jdbc/rs/RestfulResultSetTest.java

@@ -160,6 +160,7 @@ public class RestfulResultSetTest {
     @Test
     public void getTime() throws SQLException {
         Time f1 = rs.getTime("f1");
+        Assert.assertNotNull(f1);
         Assert.assertEquals("00:00:00", f1.toString());
     }
 

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

+package com.taosdata.jdbc.utils;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class UtilsTest {
+
+    @Test
+    public void escapeSingleQuota() {
+        String s = "'''''a\\'";
+        String news = Utils.escapeSingleQuota(s);
+        Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
+
+        s = "\'''''a\\'";
+        news = Utils.escapeSingleQuota(s);
+        Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
+
+        s = "\'\'\'\''a\\'";
+        news = Utils.escapeSingleQuota(s);
+        Assert.assertEquals("\\'\\'\\'\\'\\'a\\'", news);
+    }
+}
\ No newline at end of file

src/kit/taosdemo/taosdemo.c

@@ -81,7 +81,7 @@ enum QUERY_MODE {
 #define MAX_DB_NAME_SIZE   64
 #define MAX_HOSTNAME_SIZE  64
 #define MAX_TB_NAME_SIZE   64
-#define MAX_DATA_SIZE      (16*1024)
+#define MAX_DATA_SIZE      (16*1024)+20     // max record len: 16*1024, timestamp string and ,('') need extra space
 #define MAX_NUM_DATATYPE   10
 #define OPT_ABORT          1 /* –abort */
 #define STRING_LEN         60000
@@ -188,7 +188,7 @@ typedef struct {
 /* Used by main to communicate with parse_opt. */
 typedef struct SArguments_S {
   char *   metaFile;
-  int      test_mode;
+  uint32_t test_mode;
   char *   host;
   uint16_t port;
   char *   user;
@@ -205,31 +205,31 @@ typedef struct SArguments_S {
   bool     verbose_print;
   bool     performance_print;
   char *   output_file;
-  int      query_mode;
+  uint32_t query_mode;
   char *   datatype[MAX_NUM_DATATYPE + 1];
-  int      len_of_binary;
-  int      num_of_CPR;
-  int      num_of_threads;
-  int64_t  insert_interval;
+  uint32_t len_of_binary;
+  uint32_t num_of_CPR;
+  uint32_t num_of_threads;
+  uint64_t insert_interval;
   int64_t  query_times;
-  int64_t  interlace_rows;
-  int64_t  num_of_RPR;                  // num_of_records_per_req
-  int64_t  max_sql_len;
-  int64_t  num_of_tables;
-  int64_t  num_of_DPT;
+  uint64_t interlace_rows;
+  uint64_t num_of_RPR;                  // num_of_records_per_req
+  uint64_t max_sql_len;
+  uint64_t num_of_tables;
+  uint64_t num_of_DPT;
   int      abort;
   int      disorderRatio;               // 0: no disorder, >0: x%
   int      disorderRange;               // ms or us by database precision
-  int      method_of_delete;
+  uint32_t method_of_delete;
   char **  arg_list;
-  int64_t  totalInsertRows;
-  int64_t  totalAffectedRows;
+  uint64_t totalInsertRows;
+  uint64_t totalAffectedRows;
 } SArguments;
 
 typedef struct SColumn_S {
-  char  field[TSDB_COL_NAME_LEN + 1];
-  char  dataType[MAX_TB_NAME_SIZE];
-  int   dataLen;
+  char      field[TSDB_COL_NAME_LEN + 1];
+  char      dataType[MAX_TB_NAME_SIZE];
+  uint32_t  dataLen;
   char  note[128];
 } StrColumn;
 
@@ -237,50 +237,50 @@ typedef struct SSuperTable_S {
   char         sTblName[MAX_TB_NAME_SIZE+1];
   int64_t      childTblCount;
   bool         childTblExists;          // 0: no, 1: yes
-  int64_t      batchCreateTableNum;     // 0: no batch,  > 0: batch table number in one sql
-  int8_t       autoCreateTable;         // 0: create sub table, 1: auto create sub table
+  uint64_t     batchCreateTableNum;     // 0: no batch,  > 0: batch table number in one sql
+  uint8_t      autoCreateTable;         // 0: create sub table, 1: auto create sub table
   char         childTblPrefix[MAX_TB_NAME_SIZE];
   char         dataSource[MAX_TB_NAME_SIZE+1];  // rand_gen or sample
-  char         insertMode[MAX_TB_NAME_SIZE];    // taosc, restful
+  char         insertMode[MAX_TB_NAME_SIZE];    // taosc, rest
   int64_t      childTblLimit;
-  int64_t      childTblOffset;
+  uint64_t      childTblOffset;
 
 //  int          multiThreadWriteOneTbl;  // 0: no, 1: yes
-  int64_t      interlaceRows;           //
+  uint64_t     interlaceRows;           //
   int          disorderRatio;           // 0: no disorder, >0: x%
   int          disorderRange;           // ms or us by database precision
-  int64_t      maxSqlLen;               //
+  uint64_t     maxSqlLen;               //
 
-  int64_t      insertInterval;          // insert interval, will override global insert interval
-  int64_t      insertRows;
+  uint64_t     insertInterval;          // insert interval, will override global insert interval
+  uint64_t     insertRows;
   int64_t      timeStampStep;
   char         startTimestamp[MAX_TB_NAME_SIZE];
   char         sampleFormat[MAX_TB_NAME_SIZE];  // csv, json
   char         sampleFile[MAX_FILE_NAME_LEN+1];
   char         tagsFile[MAX_FILE_NAME_LEN+1];
 
-  int          columnCount;
+  uint32_t     columnCount;
   StrColumn    columns[MAX_COLUMN_COUNT];
-  int          tagCount;
+  uint32_t          tagCount;
   StrColumn    tags[MAX_TAG_COUNT];
 
   char*        childTblName;
   char*        colsOfCreateChildTable;
-  int64_t      lenOfOneRow;
-  int64_t      lenOfTagOfOneRow;
+  uint64_t     lenOfOneRow;
+  uint64_t     lenOfTagOfOneRow;
 
   char*        sampleDataBuf;
   //int          sampleRowCount;
   //int          sampleUsePos;
 
-  int          tagSource;    // 0: rand, 1: tag sample
+  uint32_t     tagSource;    // 0: rand, 1: tag sample
   char*        tagDataBuf;
-  int          tagSampleCount;
-  int          tagUsePos;
+  uint32_t     tagSampleCount;
+  uint32_t     tagUsePos;
 
   // statistics
-  int64_t       totalInsertRows;
-  int64_t       totalAffectedRows;
+  uint64_t     totalInsertRows;
+  uint64_t     totalAffectedRows;
 } SSuperTable;
 
 typedef struct {
@@ -307,8 +307,8 @@ typedef struct {
 
 typedef struct SDbCfg_S {
 //  int       maxtablesPerVnode;
-  int       minRows;
-  int       maxRows;
+  uint32_t  minRows;        // 0 means default
+  uint32_t  maxRows;        // 0 means default
   int       comp;
   int       walLevel;
   int       cacheLast;
@@ -327,13 +327,15 @@ typedef struct SDataBase_S {
   char         dbName[MAX_DB_NAME_SIZE];
   bool         drop;  // 0: use exists, 1: if exists, drop then new create
   SDbCfg       dbCfg;
-  int64_t      superTblCount;
+  uint64_t     superTblCount;
   SSuperTable  superTbls[MAX_SUPER_TABLE_COUNT];
 } SDataBase;
 
 typedef struct SDbs_S {
   char         cfgDir[MAX_FILE_NAME_LEN+1];
   char         host[MAX_HOSTNAME_SIZE];
+  struct sockaddr_in serv_addr;
+
   uint16_t     port;
   char         user[MAX_USERNAME_SIZE];
   char         password[MAX_PASSWORD_SIZE];
@@ -343,104 +345,105 @@ typedef struct SDbs_S {
   bool         do_aggreFunc;
   bool         queryMode;
 
-  int          threadCount;
-  int          threadCountByCreateTbl;
-  int          dbCount;
+  uint32_t     threadCount;
+  uint32_t     threadCountByCreateTbl;
+  uint32_t     dbCount;
   SDataBase    db[MAX_DB_COUNT];
 
   // statistics
-  int64_t       totalInsertRows;
-  int64_t       totalAffectedRows;
+  uint64_t     totalInsertRows;
+  uint64_t     totalAffectedRows;
 
 } SDbs;
 
 typedef struct SpecifiedQueryInfo_S {
-  int64_t      queryInterval;  // 0: unlimit  > 0   loop/s
-  int64_t      concurrent;
-  int64_t      sqlCount;
-  int          mode; // 0: sync, 1: async
-  int64_t      subscribeInterval; // ms
-  int64_t      queryTimes;
+  uint64_t     queryInterval;  // 0: unlimit  > 0   loop/s
+  uint64_t     concurrent;
+  uint64_t     sqlCount;
+  uint32_t     mode; // 0: sync, 1: async
+  uint64_t     subscribeInterval; // ms
+  uint64_t     queryTimes;
   int          subscribeRestart;
   int          subscribeKeepProgress;
   char         sql[MAX_QUERY_SQL_COUNT][MAX_QUERY_SQL_LENGTH+1];
   char         result[MAX_QUERY_SQL_COUNT][MAX_FILE_NAME_LEN+1];
   TAOS_SUB*    tsub[MAX_QUERY_SQL_COUNT];
-  int64_t      totalQueried;
+  uint64_t     totalQueried;
 } SpecifiedQueryInfo;
 
 typedef struct SuperQueryInfo_S {
   char         sTblName[MAX_TB_NAME_SIZE+1];
-  int64_t      queryInterval;  // 0: unlimit  > 0   loop/s
-  int          threadCnt;
-  int          mode; // 0: sync, 1: async
-  int64_t      subscribeInterval; // ms
+  uint64_t     queryInterval;  // 0: unlimit  > 0   loop/s
+  uint32_t     threadCnt;
+  uint32_t     mode; // 0: sync, 1: async
+  uint64_t     subscribeInterval; // ms
   int          subscribeRestart;
   int          subscribeKeepProgress;
-  int64_t      queryTimes;
-  int64_t      childTblCount;
+  uint64_t     queryTimes;
+  uint64_t     childTblCount;
   char         childTblPrefix[MAX_TB_NAME_SIZE];
-  int64_t      sqlCount;
+  uint64_t     sqlCount;
   char         sql[MAX_QUERY_SQL_COUNT][MAX_QUERY_SQL_LENGTH+1];
   char         result[MAX_QUERY_SQL_COUNT][MAX_FILE_NAME_LEN+1];
   TAOS_SUB*    tsub[MAX_QUERY_SQL_COUNT];
 
   char*        childTblName;
-  int64_t      totalQueried;
+  uint64_t     totalQueried;
 } SuperQueryInfo;
 
 typedef struct SQueryMetaInfo_S {
   char         cfgDir[MAX_FILE_NAME_LEN+1];
   char         host[MAX_HOSTNAME_SIZE];
   uint16_t     port;
+  struct       sockaddr_in serv_addr;
   char         user[MAX_USERNAME_SIZE];
   char         password[MAX_PASSWORD_SIZE];
   char         dbName[MAX_DB_NAME_SIZE+1];
-  char         queryMode[MAX_TB_NAME_SIZE];  // taosc, restful
+  char         queryMode[MAX_TB_NAME_SIZE];  // taosc, rest
 
   SpecifiedQueryInfo  specifiedQueryInfo;
   SuperQueryInfo    superQueryInfo;
-  int64_t      totalQueried;
+  uint64_t     totalQueried;
 } SQueryMetaInfo;
 
 typedef struct SThreadInfo_S {
-  TAOS *taos;
-  int threadID;
-  char db_name[MAX_DB_NAME_SIZE+1];
-  uint32_t time_precision;
-  char fp[4096];
-  char tb_prefix[MAX_TB_NAME_SIZE];
-  int64_t start_table_from;
-  int64_t end_table_to;
-  int64_t ntables;
-  int64_t data_of_rate;
-  int64_t start_time;
-  char* cols;
-  bool  use_metric;
+  TAOS *    taos;
+  int       threadID;
+  char      db_name[MAX_DB_NAME_SIZE+1];
+  uint32_t  time_precision;
+  char      fp[4096];
+  char      tb_prefix[MAX_TB_NAME_SIZE];
+  uint64_t  start_table_from;
+  uint64_t  end_table_to;
+  uint64_t  ntables;
+  uint64_t  data_of_rate;
+  int64_t   start_time;
+  char*     cols;
+  bool      use_metric;
   SSuperTable* superTblInfo;
 
   // for async insert
-  tsem_t lock_sem;
-  int64_t  counter;
+  tsem_t    lock_sem;
+  int64_t   counter;
   uint64_t  st;
   uint64_t  et;
-  int64_t  lastTs;
+  uint64_t  lastTs;
 
   // sample data
-  int64_t samplePos;
+  int64_t   samplePos;
   // statistics
-  int64_t totalInsertRows;
-  int64_t totalAffectedRows;
+  uint64_t  totalInsertRows;
+  uint64_t  totalAffectedRows;
 
   // insert delay statistics
-  int64_t cntDelay;
-  int64_t totalDelay;
-  int64_t avgDelay;
-  int64_t maxDelay;
-  int64_t minDelay;
+  uint64_t  cntDelay;
+  uint64_t  totalDelay;
+  uint64_t  avgDelay;
+  uint64_t  maxDelay;
+  uint64_t  minDelay;
 
   // query
-  int64_t querySeq;   // sequence number of sql command
+  uint64_t  querySeq;   // sequence number of sql command
 } threadInfo;
 
 #ifdef WINDOWS
@@ -566,7 +569,7 @@ SArguments g_args = {
                      1,               // query_times
                      0,               // interlace_rows;
                      30000,           // num_of_RPR
-                     1024000,         // max_sql_len
+                     (1024*1024),         // max_sql_len
                      10000,           // num_of_tables
                      10000,           // num_of_DPT
                      0,               // abort
@@ -663,11 +666,11 @@ static void printHelp() {
   printf("%s%s%s%s\n", indent, "-q", indent,
           "Query mode -- 0: SYNC, 1: ASYNC. Default is SYNC.");
   printf("%s%s%s%s\n", indent, "-b", indent,
-          "The data_type of columns, default: TINYINT,SMALLINT,INT,BIGINT,FLOAT,DOUBLE,BINARY,NCHAR,BOOL,TIMESTAMP.");
+          "The data_type of columns, default: INT,INT,INT,INT.");
   printf("%s%s%s%s\n", indent, "-w", indent,
           "The length of data_type 'BINARY' or 'NCHAR'. Default is 16");
   printf("%s%s%s%s\n", indent, "-l", indent,
-          "The number of columns per record. Default is 10.");
+          "The number of columns per record. Default is 4.");
   printf("%s%s%s%s\n", indent, "-T", indent,
           "The number of threads. Default is 10.");
   printf("%s%s%s%s\n", indent, "-i", indent,
@@ -722,7 +725,7 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
         errorPrint("%s", "\n\t-c need a valid path following!\n");
         exit(EXIT_FAILURE);
       }
-      tstrncpy(configDir, argv[++i], MAX_FILE_NAME_LEN);
+      tstrncpy(configDir, argv[++i], TSDB_FILENAME_LEN);
 
     } else if (strcmp(argv[i], "-h") == 0) {
       if (argc == i+1) {
@@ -964,9 +967,9 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
       }
     } else if (strcmp(argv[i], "-D") == 0) {
       arguments->method_of_delete = atoi(argv[++i]);
-      if (arguments->method_of_delete < 0
-              || arguments->method_of_delete > 3) {
-        arguments->method_of_delete = 0;
+      if (arguments->method_of_delete > 3) {
+        errorPrint("%s", "\n\t-D need a valud (0~3) number following!\n");
+        exit(EXIT_FAILURE);
       }
     } else if ((strcmp(argv[i], "--version") == 0) ||
         (strcmp(argv[i], "-V") == 0)){
@@ -1001,17 +1004,17 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
                 break;
         printf("\n");
     }
-    printf("# Insertion interval:                %"PRId64"\n",
+    printf("# Insertion interval:                %"PRIu64"\n",
             arguments->insert_interval);
-    printf("# Number of records per req:         %"PRId64"\n",
+    printf("# Number of records per req:         %"PRIu64"\n",
             arguments->num_of_RPR);
-    printf("# Max SQL length:                    %"PRId64"\n",
+    printf("# Max SQL length:                    %"PRIu64"\n",
             arguments->max_sql_len);
     printf("# Length of Binary:                  %d\n", arguments->len_of_binary);
     printf("# Number of Threads:                 %d\n", arguments->num_of_threads);
-    printf("# Number of Tables:                  %"PRId64"\n",
+    printf("# Number of Tables:                  %"PRIu64"\n",
             arguments->num_of_tables);
-    printf("# Number of Data per Table:          %"PRId64"\n",
+    printf("# Number of Data per Table:          %"PRIu64"\n",
             arguments->num_of_DPT);
     printf("# Database name:                     %s\n", arguments->database);
     printf("# Table prefix:                      %s\n", arguments->tb_prefix);
@@ -1188,13 +1191,31 @@ static float rand_float(){
   return randfloat[cursor];
 }
 
+#if 0
+static const char charNum[] = "0123456789";
+
+static void nonrand_string(char *, int) __attribute__ ((unused));   // reserve for debugging purpose
+static void nonrand_string(char *str, int size)
+{
+  str[0] = 0;
+  if (size > 0) {
+    int n;
+    for (n = 0; n < size; n++) {
+      str[n] = charNum[n % 10];
+    }
+    str[n] = 0;
+  }
+}
+#endif
+
 static const char charset[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
+
 static void rand_string(char *str, int size) {
   str[0] = 0;
   if (size > 0) {
     //--size;
     int n;
-    for (n = 0; n < size - 1; n++) {
+    for (n = 0; n < size; n++) {
       int key = abs(rand_tinyint()) % (int)(sizeof(charset) - 1);
       str[n] = charset[key];
     }
@@ -1249,11 +1270,11 @@ static int printfInsertMeta() {
   printf("resultFile:                 \033[33m%s\033[0m\n", g_Dbs.resultFile);
   printf("thread num of insert data:  \033[33m%d\033[0m\n", g_Dbs.threadCount);
   printf("thread num of create table: \033[33m%d\033[0m\n", g_Dbs.threadCountByCreateTbl);
-  printf("top insert interval:        \033[33m%"PRId64"\033[0m\n",
+  printf("top insert interval:        \033[33m%"PRIu64"\033[0m\n",
           g_args.insert_interval);
-  printf("number of records per req:  \033[33m%"PRId64"\033[0m\n",
+  printf("number of records per req:  \033[33m%"PRIu64"\033[0m\n",
           g_args.num_of_RPR);
-  printf("max sql length:             \033[33m%"PRId64"\033[0m\n",
+  printf("max sql length:             \033[33m%"PRIu64"\033[0m\n",
           g_args.max_sql_len);
 
   printf("database count:             \033[33m%d\033[0m\n", g_Dbs.dbCount);
@@ -1315,10 +1336,10 @@ static int printfInsertMeta() {
       }
     }
 
-    printf("  super table count:     \033[33m%"PRId64"\033[0m\n",
+    printf("  super table count:     \033[33m%"PRIu64"\033[0m\n",
         g_Dbs.db[i].superTblCount);
-    for (int64_t j = 0; j < g_Dbs.db[i].superTblCount; j++) {
-      printf("  super table[\033[33m%"PRId64"\033[0m]:\n", j);
+    for (uint64_t j = 0; j < g_Dbs.db[i].superTblCount; j++) {
+      printf("  super table[\033[33m%"PRIu64"\033[0m]:\n", j);
 
       printf("      stbName:           \033[33m%s\033[0m\n",
           g_Dbs.db[i].superTbls[j].sTblName);
@@ -1339,7 +1360,7 @@ static int printfInsertMeta() {
         printf("      childTblExists:    \033[33m%s\033[0m\n",  "error");
       }
 
-      printf("      childTblCount:     \033[33m%"PRId64"\033[0m\n",
+      printf("      childTblCount:     \033[33m%"PRIu64"\033[0m\n",
               g_Dbs.db[i].superTbls[j].childTblCount);
       printf("      childTblPrefix:    \033[33m%s\033[0m\n",
               g_Dbs.db[i].superTbls[j].childTblPrefix);
@@ -1351,11 +1372,11 @@ static int printfInsertMeta() {
         printf("      childTblLimit:     \033[33m%"PRId64"\033[0m\n",
                 g_Dbs.db[i].superTbls[j].childTblLimit);
       }
-      if (g_Dbs.db[i].superTbls[j].childTblOffset >= 0) {
-        printf("      childTblOffset:    \033[33m%"PRId64"\033[0m\n",
+      if (g_Dbs.db[i].superTbls[j].childTblOffset > 0) {
+        printf("      childTblOffset:    \033[33m%"PRIu64"\033[0m\n",
                 g_Dbs.db[i].superTbls[j].childTblOffset);
       }
-      printf("      insertRows:        \033[33m%"PRId64"\033[0m\n",
+      printf("      insertRows:        \033[33m%"PRIu64"\033[0m\n",
               g_Dbs.db[i].superTbls[j].insertRows);
 /*
       if (0 == g_Dbs.db[i].superTbls[j].multiThreadWriteOneTbl) {
@@ -1364,11 +1385,11 @@ static int printfInsertMeta() {
         printf("      multiThreadWriteOneTbl:  \033[33myes\033[0m\n");
       }
       */
-      printf("      interlaceRows:     \033[33m%"PRId64"\033[0m\n",
+      printf("      interlaceRows:     \033[33m%"PRIu64"\033[0m\n",
               g_Dbs.db[i].superTbls[j].interlaceRows);
 
       if (g_Dbs.db[i].superTbls[j].interlaceRows > 0) {
-        printf("      stable insert interval:   \033[33m%"PRId64"\033[0m\n",
+        printf("      stable insert interval:   \033[33m%"PRIu64"\033[0m\n",
             g_Dbs.db[i].superTbls[j].insertInterval);
       }
 
@@ -1376,7 +1397,7 @@ static int printfInsertMeta() {
               g_Dbs.db[i].superTbls[j].disorderRange);
       printf("      disorderRatio:     \033[33m%d\033[0m\n",
               g_Dbs.db[i].superTbls[j].disorderRatio);
-      printf("      maxSqlLen:         \033[33m%"PRId64"\033[0m\n",
+      printf("      maxSqlLen:         \033[33m%"PRIu64"\033[0m\n",
               g_Dbs.db[i].superTbls[j].maxSqlLen);
       printf("      timeStampStep:     \033[33m%"PRId64"\033[0m\n",
               g_Dbs.db[i].superTbls[j].timeStampStep);
@@ -1442,8 +1463,8 @@ static void printfInsertMetaToFile(FILE* fp) {
   fprintf(fp, "resultFile:                 %s\n", g_Dbs.resultFile);
   fprintf(fp, "thread num of insert data:  %d\n", g_Dbs.threadCount);
   fprintf(fp, "thread num of create table: %d\n", g_Dbs.threadCountByCreateTbl);
-  fprintf(fp, "number of records per req:  %"PRId64"\n", g_args.num_of_RPR);
-  fprintf(fp, "max sql length:             %"PRId64"\n", g_args.max_sql_len);
+  fprintf(fp, "number of records per req:  %"PRIu64"\n", g_args.num_of_RPR);
+  fprintf(fp, "max sql length:             %"PRIu64"\n", g_args.max_sql_len);
   fprintf(fp, "database count:          %d\n", g_Dbs.dbCount);
 
   for (int i = 0; i < g_Dbs.dbCount; i++) {
@@ -1500,7 +1521,7 @@ static void printfInsertMetaToFile(FILE* fp) {
       }
     }
 
-    fprintf(fp, "  super table count:     %"PRId64"\n", g_Dbs.db[i].superTblCount);
+    fprintf(fp, "  super table count:     %"PRIu64"\n", g_Dbs.db[i].superTblCount);
     for (int j = 0; j < g_Dbs.db[i].superTblCount; j++) {
       fprintf(fp, "  super table[%d]:\n", j);
 
@@ -1522,7 +1543,7 @@ static void printfInsertMetaToFile(FILE* fp) {
         fprintf(fp, "      childTblExists:    %s\n",  "error");
       }
 
-      fprintf(fp, "      childTblCount:     %"PRId64"\n",
+      fprintf(fp, "      childTblCount:     %"PRIu64"\n",
               g_Dbs.db[i].superTbls[j].childTblCount);
       fprintf(fp, "      childTblPrefix:    %s\n",
               g_Dbs.db[i].superTbls[j].childTblPrefix);
@@ -1530,12 +1551,12 @@ static void printfInsertMetaToFile(FILE* fp) {
               g_Dbs.db[i].superTbls[j].dataSource);
       fprintf(fp, "      insertMode:        %s\n",
               g_Dbs.db[i].superTbls[j].insertMode);
-      fprintf(fp, "      insertRows:        %"PRId64"\n",
+      fprintf(fp, "      insertRows:        %"PRIu64"\n",
               g_Dbs.db[i].superTbls[j].insertRows);
-      fprintf(fp, "      interlace rows:    %"PRId64"\n",
+      fprintf(fp, "      interlace rows:    %"PRIu64"\n",
               g_Dbs.db[i].superTbls[j].interlaceRows);
       if (g_Dbs.db[i].superTbls[j].interlaceRows > 0) {
-        fprintf(fp, "      stable insert interval:   %"PRId64"\n",
+        fprintf(fp, "      stable insert interval:   %"PRIu64"\n",
                 g_Dbs.db[i].superTbls[j].insertInterval);
       }
 /*
@@ -1545,11 +1566,11 @@ static void printfInsertMetaToFile(FILE* fp) {
         fprintf(fp, "      multiThreadWriteOneTbl:  yes\n");
       }
       */
-      fprintf(fp, "      interlaceRows:     %"PRId64"\n",
+      fprintf(fp, "      interlaceRows:     %"PRIu64"\n",
               g_Dbs.db[i].superTbls[j].interlaceRows);
       fprintf(fp, "      disorderRange:     %d\n",  g_Dbs.db[i].superTbls[j].disorderRange);
       fprintf(fp, "      disorderRatio:     %d\n",  g_Dbs.db[i].superTbls[j].disorderRatio);
-      fprintf(fp, "      maxSqlLen:         %"PRId64"\n",
+      fprintf(fp, "      maxSqlLen:         %"PRIu64"\n",
               g_Dbs.db[i].superTbls[j].maxSqlLen);
 
       fprintf(fp, "      timeStampStep:     %"PRId64"\n",
@@ -1610,21 +1631,21 @@ static void printfQueryMeta() {
 
   printf("\n");
   printf("specified table query info:                   \n");
-  printf("query interval: \033[33m%"PRId64" ms\033[0m\n",
+  printf("query interval: \033[33m%"PRIu64" ms\033[0m\n",
       g_queryInfo.specifiedQueryInfo.queryInterval);
-  printf("top query times:\033[33m%"PRId64"\033[0m\n", g_args.query_times);
-  printf("concurrent:     \033[33m%"PRId64"\033[0m\n",
+  printf("top query times:\033[33m%"PRIu64"\033[0m\n", g_args.query_times);
+  printf("concurrent:     \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.specifiedQueryInfo.concurrent);
-  printf("sqlCount:       \033[33m%"PRId64"\033[0m\n",
+  printf("sqlCount:       \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.specifiedQueryInfo.sqlCount);
   printf("specified tbl query times:\n");
-  printf("                \033[33m%"PRId64"\033[0m\n",
+  printf("                \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.specifiedQueryInfo.queryTimes);
 
   if (SUBSCRIBE_TEST == g_args.test_mode) {
     printf("mod:            \033[33m%d\033[0m\n",
         g_queryInfo.specifiedQueryInfo.mode);
-    printf("interval:       \033[33m%"PRId64"\033[0m\n",
+    printf("interval:       \033[33m%"PRIu64"\033[0m\n",
         g_queryInfo.specifiedQueryInfo.subscribeInterval);
     printf("restart:        \033[33m%d\033[0m\n",
         g_queryInfo.specifiedQueryInfo.subscribeRestart);
@@ -1632,27 +1653,27 @@ static void printfQueryMeta() {
         g_queryInfo.specifiedQueryInfo.subscribeKeepProgress);
   }
 
-  for (int64_t i = 0; i < g_queryInfo.specifiedQueryInfo.sqlCount; i++) {
-    printf("  sql[%"PRId64"]: \033[33m%s\033[0m\n",
+  for (uint64_t i = 0; i < g_queryInfo.specifiedQueryInfo.sqlCount; i++) {
+    printf("  sql[%"PRIu64"]: \033[33m%s\033[0m\n",
         i, g_queryInfo.specifiedQueryInfo.sql[i]);
   }
   printf("\n");
   printf("super table query info:\n");
-  printf("query interval: \033[33m%"PRId64"\033[0m\n",
+  printf("query interval: \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.superQueryInfo.queryInterval);
   printf("threadCnt:      \033[33m%d\033[0m\n",
       g_queryInfo.superQueryInfo.threadCnt);
-  printf("childTblCount:  \033[33m%"PRId64"\033[0m\n",
+  printf("childTblCount:  \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.superQueryInfo.childTblCount);
   printf("stable name:    \033[33m%s\033[0m\n",
       g_queryInfo.superQueryInfo.sTblName);
-  printf("stb query times:\033[33m%"PRId64"\033[0m\n",
+  printf("stb query times:\033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.superQueryInfo.queryTimes);
 
   if (SUBSCRIBE_TEST == g_args.test_mode) {
     printf("mod:            \033[33m%d\033[0m\n",
         g_queryInfo.superQueryInfo.mode);
-    printf("interval:       \033[33m%"PRId64"\033[0m\n",
+    printf("interval:       \033[33m%"PRIu64"\033[0m\n",
         g_queryInfo.superQueryInfo.subscribeInterval);
     printf("restart:        \033[33m%d\033[0m\n",
         g_queryInfo.superQueryInfo.subscribeRestart);
@@ -1660,7 +1681,7 @@ static void printfQueryMeta() {
         g_queryInfo.superQueryInfo.subscribeKeepProgress);
   }
 
-  printf("sqlCount:       \033[33m%"PRId64"\033[0m\n",
+  printf("sqlCount:       \033[33m%"PRIu64"\033[0m\n",
       g_queryInfo.superQueryInfo.sqlCount);
   for (int i = 0; i < g_queryInfo.superQueryInfo.sqlCount; i++) {
     printf("  sql[%d]: \033[33m%s\033[0m\n",
@@ -1955,14 +1976,12 @@ static void printfQuerySystemInfo(TAOS * taos) {
   free(dbInfos);
 }
 
-static int postProceSql(char* host, uint16_t port, char* sqlstr)
+static int postProceSql(char *host, struct sockaddr_in *pServAddr, uint16_t port, char* sqlstr)
 {
     char *req_fmt = "POST %s HTTP/1.1\r\nHost: %s:%d\r\nAccept: */*\r\nAuthorization: Basic %s\r\nContent-Length: %d\r\nContent-Type: application/x-www-form-urlencoded\r\n\r\n%s";
 
     char *url = "/rest/sql";
 
-    struct hostent *server;
-    struct sockaddr_in serv_addr;
     int bytes, sent, received, req_str_len, resp_len;
     char *request_buf;
     char response_buf[RESP_BUF_LEN];
@@ -2011,27 +2030,7 @@ static int postProceSql(char* host, uint16_t port, char* sqlstr)
         ERROR_EXIT("ERROR opening socket");
     }
 
-    server = gethostbyname(host);
-    if (server == NULL) {
-        free(request_buf);
-        ERROR_EXIT("ERROR, no such host");
-    }
-
-    debugPrint("h_name: %s\nh_addretype: %s\nh_length: %d\n",
-            server->h_name,
-            (server->h_addrtype == AF_INET)?"ipv4":"ipv6",
-            server->h_length);
-
-    memset(&serv_addr, 0, sizeof(serv_addr));
-    serv_addr.sin_family = AF_INET;
-    serv_addr.sin_port = htons(rest_port);
-#ifdef WINDOWS
-    serv_addr.sin_addr.s_addr = inet_addr(host);
-#else
-    memcpy(&serv_addr.sin_addr.s_addr,server->h_addr,server->h_length);
-#endif
-
-    int retConn = connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(serv_addr));
+    int retConn = connect(sockfd, (struct sockaddr *)pServAddr, sizeof(struct sockaddr));
     debugPrint("%s() LN%d connect() return %d\n", __func__, __LINE__, retConn);
     if (retConn < 0) {
         free(request_buf);
@@ -2291,7 +2290,7 @@ static int calcRowLen(SSuperTable*  superTbls) {
 
 static int getChildNameOfSuperTableWithLimitAndOffset(TAOS * taos,
         char* dbName, char* sTblName, char** childTblNameOfSuperTbl,
-        int64_t* childTblCountOfSuperTbl, int64_t limit, int64_t offset) {
+        uint64_t* childTblCountOfSuperTbl, int64_t limit, uint64_t offset) {
 
   char command[BUFFER_SIZE] = "\0";
   char limitBuf[100] = "\0";
@@ -2302,7 +2301,7 @@ static int getChildNameOfSuperTableWithLimitAndOffset(TAOS * taos,
   char* childTblName = *childTblNameOfSuperTbl;
 
   if (offset >= 0) {
-    snprintf(limitBuf, 100, " limit %"PRId64" offset %"PRId64"",
+    snprintf(limitBuf, 100, " limit %"PRId64" offset %"PRIu64"",
             limit, offset);
   }
 
@@ -2368,11 +2367,11 @@ static int getChildNameOfSuperTableWithLimitAndOffset(TAOS * taos,
 
 static int getAllChildNameOfSuperTable(TAOS * taos, char* dbName,
         char* sTblName, char** childTblNameOfSuperTbl,
-        int64_t* childTblCountOfSuperTbl) {
+        uint64_t* childTblCountOfSuperTbl) {
 
     return getChildNameOfSuperTableWithLimitAndOffset(taos, dbName, sTblName,
             childTblNameOfSuperTbl, childTblCountOfSuperTbl,
-            -1, -1);
+            -1, 0);
 }
 
 static int getSuperTableFromServer(TAOS * taos, char* dbName,
@@ -2708,7 +2707,7 @@ static int createDatabasesAndStables() {
       printf("\ncreate database %s success!\n\n", g_Dbs.db[i].dbName);
     }
 
-    debugPrint("%s() LN%d supertbl count:%"PRId64"\n",
+    debugPrint("%s() LN%d supertbl count:%"PRIu64"\n",
             __func__, __LINE__, g_Dbs.db[i].superTblCount);
 
     int validStbCount = 0;
@@ -2767,15 +2766,15 @@ static void* createTable(void *sarg)
   int len = 0;
   int batchNum = 0;
 
-  verbosePrint("%s() LN%d: Creating table from %"PRId64" to %"PRId64"\n",
+  verbosePrint("%s() LN%d: Creating table from %"PRIu64" to %"PRIu64"\n",
           __func__, __LINE__,
           pThreadInfo->start_table_from, pThreadInfo->end_table_to);
 
-  for (int64_t i = pThreadInfo->start_table_from;
+  for (uint64_t i = pThreadInfo->start_table_from;
           i <= pThreadInfo->end_table_to; i++) {
     if (0 == g_Dbs.use_metric) {
       snprintf(buffer, buff_len,
-              "create table if not exists %s.%s%"PRId64" %s;",
+              "create table if not exists %s.%s%"PRIu64" %s;",
               pThreadInfo->db_name,
               g_args.tb_prefix, i,
               pThreadInfo->cols);
@@ -2806,7 +2805,7 @@ static void* createTable(void *sarg)
         }
         len += snprintf(buffer + len,
                 buff_len - len,
-                "if not exists %s.%s%"PRId64" using %s.%s tags %s ",
+                "if not exists %s.%s%"PRIu64" using %s.%s tags %s ",
                 pThreadInfo->db_name, superTblInfo->childTblPrefix,
                 i, pThreadInfo->db_name,
                 superTblInfo->sTblName, tagsValBuf);
@@ -2830,7 +2829,7 @@ static void* createTable(void *sarg)
 
     int64_t  currentPrintTime = taosGetTimestampMs();
     if (currentPrintTime - lastPrintTime > 30*1000) {
-      printf("thread[%d] already create %"PRId64" - %"PRId64" tables\n",
+      printf("thread[%d] already create %"PRIu64" - %"PRIu64" tables\n",
               pThreadInfo->threadID, pThreadInfo->start_table_from, i);
       lastPrintTime = currentPrintTime;
     }
@@ -2898,7 +2897,7 @@ static int startMultiThreadCreateChildTable(
     startFrom = t_info->end_table_to + 1;
     t_info->use_metric = true;
     t_info->cols = cols;
-    t_info->minDelay = INT16_MAX;
+    t_info->minDelay = UINT64_MAX;
     pthread_create(pids + i, NULL, createTable, t_info);
   }
 
@@ -2964,7 +2963,7 @@ static void createChildTables() {
 
       snprintf(tblColsBuf + len, MAX_SQL_SIZE - len, ")");
 
-      verbosePrint("%s() LN%d: dbName: %s num of tb: %"PRId64" schema: %s\n",
+      verbosePrint("%s() LN%d: dbName: %s num of tb: %"PRIu64" schema: %s\n",
               __func__, __LINE__,
               g_Dbs.db[i].dbName, g_args.num_of_tables, tblColsBuf);
       startMultiThreadCreateChildTable(
@@ -3092,7 +3091,7 @@ static int readSampleFromCsvFileToMem(
     }
 
     if (readLen > superTblInfo->lenOfOneRow) {
-      printf("sample row len[%d] overflow define schema len[%"PRId64"], so discard this row\n",
+      printf("sample row len[%d] overflow define schema len[%"PRIu64"], so discard this row\n",
               (int32_t)readLen, superTblInfo->lenOfOneRow);
       continue;
     }
@@ -3335,7 +3334,7 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
   if (threads2 && threads2->type == cJSON_Number) {
     g_Dbs.threadCountByCreateTbl = threads2->valueint;
   } else if (!threads2) {
-    g_Dbs.threadCountByCreateTbl = g_args.num_of_threads;
+    g_Dbs.threadCountByCreateTbl = 1;
   } else {
     errorPrint("%s() LN%d, failed to read json, threads2 not found\n",
             __func__, __LINE__);
@@ -3344,6 +3343,11 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 
   cJSON* gInsertInterval = cJSON_GetObjectItem(root, "insert_interval");
   if (gInsertInterval && gInsertInterval->type == cJSON_Number) {
+    if (gInsertInterval->valueint <0) {
+      errorPrint("%s() LN%d, failed to read json, insert interval input mistake\n",
+            __func__, __LINE__);
+      goto PARSE_OVER;
+    }
     g_args.insert_interval = gInsertInterval->valueint;
   } else if (!gInsertInterval) {
     g_args.insert_interval = 0;
@@ -3355,13 +3359,19 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 
   cJSON* interlaceRows = cJSON_GetObjectItem(root, "interlace_rows");
   if (interlaceRows && interlaceRows->type == cJSON_Number) {
+    if (interlaceRows->valueint < 0) {
+      errorPrint("%s() LN%d, failed to read json, interlace_rows input mistake\n",
+        __func__, __LINE__);
+      goto PARSE_OVER;
+
+    }
     g_args.interlace_rows = interlaceRows->valueint;
 
     // rows per table need be less than insert batch
     if (g_args.interlace_rows > g_args.num_of_RPR) {
-      printf("NOTICE: interlace rows value %"PRId64" > num_of_records_per_req %"PRId64"\n\n",
+      printf("NOTICE: interlace rows value %"PRIu64" > num_of_records_per_req %"PRIu64"\n\n",
               g_args.interlace_rows, g_args.num_of_RPR);
-      printf("        interlace rows value will be set to num_of_records_per_req %"PRId64"\n\n",
+      printf("        interlace rows value will be set to num_of_records_per_req %"PRIu64"\n\n",
               g_args.num_of_RPR);
       printf("        press Enter key to continue or Ctrl-C to stop.");
       (void)getchar();
@@ -3377,9 +3387,14 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 
   cJSON* maxSqlLen = cJSON_GetObjectItem(root, "max_sql_len");
   if (maxSqlLen && maxSqlLen->type == cJSON_Number) {
+    if (maxSqlLen->valueint < 0) {
+      errorPrint("%s() LN%d, failed to read json, max_sql_len input mistake\n",
+        __func__, __LINE__);
+      goto PARSE_OVER;
+    }
     g_args.max_sql_len = maxSqlLen->valueint;
   } else if (!maxSqlLen) {
-    g_args.max_sql_len = 1024000;
+    g_args.max_sql_len = (1024*1024);
   } else {
     errorPrint("%s() LN%d, failed to read json, max_sql_len input mistake\n",
         __func__, __LINE__);
@@ -3388,9 +3403,14 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 
   cJSON* numRecPerReq = cJSON_GetObjectItem(root, "num_of_records_per_req");
   if (numRecPerReq && numRecPerReq->type == cJSON_Number) {
+    if (numRecPerReq->valueint < 0) {
+      errorPrint("%s() LN%d, failed to read json, num_of_records_per_req input mistake\n",
+        __func__, __LINE__);
+      goto PARSE_OVER;
+    }
     g_args.num_of_RPR = numRecPerReq->valueint;
   } else if (!numRecPerReq) {
-    g_args.num_of_RPR = INT64_MAX;
+    g_args.num_of_RPR = UINT64_MAX;
   } else {
     errorPrint("%s() LN%d, failed to read json, num_of_records_per_req not found\n",
         __func__, __LINE__);
@@ -3550,7 +3570,7 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
     if (minRows && minRows->type == cJSON_Number) {
       g_Dbs.db[i].dbCfg.minRows = minRows->valueint;
     } else if (!minRows) {
-      g_Dbs.db[i].dbCfg.minRows = -1;
+      g_Dbs.db[i].dbCfg.minRows = 0;    // 0 means default
     } else {
      printf("ERROR: failed to read json, minRows not found\n");
      goto PARSE_OVER;
@@ -3560,7 +3580,7 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
     if (maxRows && maxRows->type == cJSON_Number) {
       g_Dbs.db[i].dbCfg.maxRows = maxRows->valueint;
     } else if (!maxRows) {
-      g_Dbs.db[i].dbCfg.maxRows = -1;
+      g_Dbs.db[i].dbCfg.maxRows = 0;    // 0 means default
     } else {
      printf("ERROR: failed to read json, maxRows not found\n");
      goto PARSE_OVER;
@@ -3705,7 +3725,7 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 
       cJSON* count = cJSON_GetObjectItem(stbInfo, "childtable_count");
       if (!count || count->type != cJSON_Number || 0 >= count->valueint) {
-        errorPrint("%s() LN%d, failed to read json, childtable_count not found\n",
+        errorPrint("%s() LN%d, failed to read json, childtable_count input mistake\n",
                 __func__, __LINE__);
         goto PARSE_OVER;
       }
@@ -3724,7 +3744,7 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
         goto PARSE_OVER;
       }
 
-      cJSON *insertMode = cJSON_GetObjectItem(stbInfo, "insert_mode"); // taosc , restful
+      cJSON *insertMode = cJSON_GetObjectItem(stbInfo, "insert_mode"); // taosc , rest
       if (insertMode && insertMode->type == cJSON_String
               && insertMode->valuestring != NULL) {
         tstrncpy(g_Dbs.db[i].superTbls[j].insertMode,
@@ -3859,12 +3879,17 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 */
       cJSON* interlaceRows = cJSON_GetObjectItem(stbInfo, "interlace_rows");
       if (interlaceRows && interlaceRows->type == cJSON_Number) {
+        if (interlaceRows->valueint < 0) {
+          errorPrint("%s() LN%d, failed to read json, interlace rows input mistake\n",
+            __func__, __LINE__);
+          goto PARSE_OVER;
+        }
         g_Dbs.db[i].superTbls[j].interlaceRows = interlaceRows->valueint;
         // rows per table need be less than insert batch
         if (g_Dbs.db[i].superTbls[j].interlaceRows > g_args.num_of_RPR) {
-          printf("NOTICE: db[%d].superTbl[%d]'s interlace rows value %"PRId64" > num_of_records_per_req %"PRId64"\n\n",
+          printf("NOTICE: db[%d].superTbl[%d]'s interlace rows value %"PRIu64" > num_of_records_per_req %"PRIu64"\n\n",
                   i, j, g_Dbs.db[i].superTbls[j].interlaceRows, g_args.num_of_RPR);
-          printf("        interlace rows value will be set to num_of_records_per_req %"PRId64"\n\n",
+          printf("        interlace rows value will be set to num_of_records_per_req %"PRIu64"\n\n",
                   g_args.num_of_RPR);
           printf("        press Enter key to continue or Ctrl-C to stop.");
           (void)getchar();
@@ -3907,6 +3932,11 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
 
       cJSON* insertRows = cJSON_GetObjectItem(stbInfo, "insert_rows");
       if (insertRows && insertRows->type == cJSON_Number) {
+        if (insertRows->valueint < 0) {
+          errorPrint("%s() LN%d, failed to read json, insert_rows input mistake\n",
+                __func__, __LINE__);
+          goto PARSE_OVER;
+        }
         g_Dbs.db[i].superTbls[j].insertRows = insertRows->valueint;
       } else if (!insertRows) {
         g_Dbs.db[i].superTbls[j].insertRows = 0x7FFFFFFFFFFFFFFF;
@@ -3919,8 +3949,13 @@ static bool getMetaFromInsertJsonFile(cJSON* root) {
       cJSON* insertInterval = cJSON_GetObjectItem(stbInfo, "insert_interval");
       if (insertInterval && insertInterval->type == cJSON_Number) {
         g_Dbs.db[i].superTbls[j].insertInterval = insertInterval->valueint;
+        if (insertInterval->valueint < 0) {
+          errorPrint("%s() LN%d, failed to read json, insert_interval input mistake\n",
+                __func__, __LINE__);
+          goto PARSE_OVER;
+        }
       } else if (!insertInterval) {
-        verbosePrint("%s() LN%d: stable insert interval be overrided by global %"PRId64".\n",
+        verbosePrint("%s() LN%d: stable insert interval be overrided by global %"PRIu64".\n",
                 __func__, __LINE__, g_args.insert_interval);
         g_Dbs.db[i].superTbls[j].insertInterval = g_args.insert_interval;
       } else {
@@ -4001,6 +4036,11 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
 
   cJSON* gQueryTimes = cJSON_GetObjectItem(root, "query_times");
   if (gQueryTimes && gQueryTimes->type == cJSON_Number) {
+    if (gQueryTimes->valueint < 0) {
+      errorPrint("%s() LN%d, failed to read json, query_times input mistake\n",
+        __func__, __LINE__);
+      goto PARSE_OVER;
+    }
     g_args.query_times = gQueryTimes->valueint;
   } else if (!gQueryTimes) {
     g_args.query_times = 1;
@@ -4028,10 +4068,10 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
     goto PARSE_OVER;
   }
 
-  // super_table_query
+  // specified_table_query
   cJSON *specifiedQuery = cJSON_GetObjectItem(root, "specified_table_query");
   if (!specifiedQuery) {
-    g_queryInfo.specifiedQueryInfo.concurrent = 0;
+    g_queryInfo.specifiedQueryInfo.concurrent = 1;
     g_queryInfo.specifiedQueryInfo.sqlCount = 0;
   } else if (specifiedQuery->type != cJSON_Object) {
     printf("ERROR: failed to read json, super_table_query not found\n");
@@ -4047,6 +4087,12 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
     cJSON* specifiedQueryTimes = cJSON_GetObjectItem(specifiedQuery,
         "query_times");
     if (specifiedQueryTimes && specifiedQueryTimes->type == cJSON_Number) {
+      if (specifiedQueryTimes->valueint < 0) {
+        errorPrint("%s() LN%d, failed to read json, query_times input mistake\n",
+          __func__, __LINE__);
+        goto PARSE_OVER;
+
+      }
       g_queryInfo.specifiedQueryInfo.queryTimes = specifiedQueryTimes->valueint;
     } else if (!specifiedQueryTimes) {
       g_queryInfo.specifiedQueryInfo.queryTimes = g_args.query_times;
@@ -4058,13 +4104,14 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
 
     cJSON* concurrent = cJSON_GetObjectItem(specifiedQuery, "concurrent");
     if (concurrent && concurrent->type == cJSON_Number) {
-      g_queryInfo.specifiedQueryInfo.concurrent = concurrent->valueint;
-      if (g_queryInfo.specifiedQueryInfo.concurrent <= 0) {
-        errorPrint("%s() LN%d, query sqlCount %"PRId64" or concurrent %"PRId64" is not correct.\n",
-              __func__, __LINE__, g_queryInfo.specifiedQueryInfo.sqlCount,
+      if (concurrent->valueint <= 0) {
+        errorPrint("%s() LN%d, query sqlCount %"PRIu64" or concurrent %"PRIu64" is not correct.\n",
+              __func__, __LINE__,
+              g_queryInfo.specifiedQueryInfo.sqlCount,
               g_queryInfo.specifiedQueryInfo.concurrent);
         goto PARSE_OVER;
       }
+      g_queryInfo.specifiedQueryInfo.concurrent = concurrent->valueint;
     } else if (!concurrent) {
       g_queryInfo.specifiedQueryInfo.concurrent = 1;
     }
@@ -4168,7 +4215,7 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
   // sub_table_query
   cJSON *superQuery = cJSON_GetObjectItem(root, "super_table_query");
   if (!superQuery) {
-    g_queryInfo.superQueryInfo.threadCnt = 0;
+    g_queryInfo.superQueryInfo.threadCnt = 1;
     g_queryInfo.superQueryInfo.sqlCount = 0;
   } else if (superQuery->type != cJSON_Object) {
     printf("ERROR: failed to read json, sub_table_query not found\n");
@@ -4184,6 +4231,11 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
 
     cJSON* superQueryTimes = cJSON_GetObjectItem(superQuery, "query_times");
     if (superQueryTimes && superQueryTimes->type == cJSON_Number) {
+      if (superQueryTimes->valueint < 0) {
+        errorPrint("%s() LN%d, failed to read json, query_times input mistake\n",
+          __func__, __LINE__);
+        goto PARSE_OVER;
+      }
       g_queryInfo.superQueryInfo.queryTimes = superQueryTimes->valueint;
     } else if (!superQueryTimes) {
       g_queryInfo.superQueryInfo.queryTimes = g_args.query_times;
@@ -4195,6 +4247,12 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
 
     cJSON* threads = cJSON_GetObjectItem(superQuery, "threads");
     if (threads && threads->type == cJSON_Number) {
+      if (threads->valueint <= 0) {
+        errorPrint("%s() LN%d, failed to read json, threads input mistake\n",
+          __func__, __LINE__);
+        goto PARSE_OVER;
+
+      }
       g_queryInfo.superQueryInfo.threadCnt = threads->valueint;
     } else if (!threads) {
       g_queryInfo.superQueryInfo.threadCnt = 1;
@@ -4234,10 +4292,15 @@ static bool getMetaFromQueryJsonFile(cJSON* root) {
       g_queryInfo.superQueryInfo.mode = SYNC_QUERY_MODE;
     }
 
-    cJSON* subinterval = cJSON_GetObjectItem(superQuery, "interval");
-    if (subinterval && subinterval->type == cJSON_Number) {
-      g_queryInfo.superQueryInfo.subscribeInterval = subinterval->valueint;
-    } else if (!subinterval) {
+    cJSON* superInterval = cJSON_GetObjectItem(superQuery, "interval");
+    if (superInterval && superInterval->type == cJSON_Number) {
+      if (superInterval->valueint < 0) {
+        errorPrint("%s() LN%d, failed to read json, interval input mistake\n",
+            __func__, __LINE__);
+        goto PARSE_OVER;
+      }
+      g_queryInfo.superQueryInfo.subscribeInterval = superInterval->valueint;
+    } else if (!superInterval) {
       //printf("failed to read json, subscribe interval no found\n");
       //goto PARSE_OVER;
       g_queryInfo.superQueryInfo.subscribeInterval = 10000;
@@ -4457,11 +4520,11 @@ static int64_t generateRowData(char* recBuf, int64_t timestamp, SSuperTable* stb
   char  *pstr = recBuf;
   int64_t maxLen = MAX_DATA_SIZE;
 
-  dataLen += snprintf(pstr + dataLen, maxLen - dataLen, "(%" PRId64 ", ", timestamp);
+  dataLen += snprintf(pstr + dataLen, maxLen - dataLen, "(%" PRId64 ",", timestamp);
 
   for (int i = 0; i < stbInfo->columnCount; i++) {
-    if ((0 == strncasecmp(stbInfo->columns[i].dataType, "binary", 6))
-            || (0 == strncasecmp(stbInfo->columns[i].dataType, "nchar", 5))) {
+    if ((0 == strncasecmp(stbInfo->columns[i].dataType, "BINARY", strlen("BINARY")))
+            || (0 == strncasecmp(stbInfo->columns[i].dataType, "NCHAR", strlen("NCHAR")))) {
       if (stbInfo->columns[i].dataLen > TSDB_MAX_BINARY_LEN) {
         errorPrint( "binary or nchar length overflow, max size:%u\n",
                 (uint32_t)TSDB_MAX_BINARY_LEN);
@@ -4474,47 +4537,47 @@ static int64_t generateRowData(char* recBuf, int64_t timestamp, SSuperTable* stb
         return -1;
       }
       rand_string(buf, stbInfo->columns[i].dataLen);
-      dataLen += snprintf(pstr + dataLen, maxLen - dataLen, "\'%s\', ", buf);
+      dataLen += snprintf(pstr + dataLen, maxLen - dataLen, "\'%s\',", buf);
       tmfree(buf);
     } else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-                "int", 3)) {
+                "INT", 3)) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-              "%d, ", rand_int());
+              "%d,", rand_int());
     } else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-                "bigint", 6)) {
+                "BIGINT", 6)) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-              "%"PRId64", ", rand_bigint());
+              "%"PRId64",", rand_bigint());
     }  else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-                "float", 5)) {
+                "FLOAT", 5)) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-              "%f, ", rand_float());
+              "%f,", rand_float());
     }  else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-                "double", 6)) {
+                "DOUBLE", 6)) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-              "%f, ", rand_double());
+              "%f,", rand_double());
     }  else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-                "smallint", 8)) {
+                "SMALLINT", 8)) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-          "%d, ", rand_smallint());
+          "%d,", rand_smallint());
     }  else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-          "tinyint", strlen("tinyint"))) {
+          "TINYINT", strlen("TINYINT"))) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-          "%d, ", rand_tinyint());
+          "%d,", rand_tinyint());
     }  else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-          "bool", strlen("bool"))) {
+          "BOOL", strlen("BOOL"))) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-          "%d, ", rand_bool());
+          "%d,", rand_bool());
     }  else if (0 == strncasecmp(stbInfo->columns[i].dataType,
-          "timestamp", strlen("timestamp"))) {
+          "TIMESTAMP", strlen("TIMESTAMP"))) {
       dataLen += snprintf(pstr + dataLen, maxLen - dataLen,
-          "%"PRId64", ", rand_bigint());
+          "%"PRId64",", rand_bigint());
     }  else {
       errorPrint( "No support data type: %s\n", stbInfo->columns[i].dataType);
       return -1;
     }
   }
 
-  dataLen -= 2;
+  dataLen -= 1;
   dataLen += snprintf(pstr + dataLen, maxLen - dataLen, ")");
 
   verbosePrint("%s() LN%d, recBuf:\n\t%s\n", __func__, __LINE__, recBuf);
@@ -4541,31 +4604,31 @@ static int64_t generateData(char *recBuf, char **data_type,
   }
 
   for (int i = 0; i < c; i++) {
-    if (strcasecmp(data_type[i % c], "tinyint") == 0) {
-      pstr += sprintf(pstr, ", %d", rand_tinyint() );
-    } else if (strcasecmp(data_type[i % c], "smallint") == 0) {
-      pstr += sprintf(pstr, ", %d", rand_smallint());
-    } else if (strcasecmp(data_type[i % c], "int") == 0) {
-      pstr += sprintf(pstr, ", %d", rand_int());
-    } else if (strcasecmp(data_type[i % c], "bigint") == 0) {
-      pstr += sprintf(pstr, ", %" PRId64, rand_bigint());
-    } else if (strcasecmp(data_type[i % c], "float") == 0) {
-      pstr += sprintf(pstr, ", %10.4f", rand_float());
-    } else if (strcasecmp(data_type[i % c], "double") == 0) {
+    if (strcasecmp(data_type[i % c], "TINYINT") == 0) {
+      pstr += sprintf(pstr, ",%d", rand_tinyint() );
+    } else if (strcasecmp(data_type[i % c], "SMALLINT") == 0) {
+      pstr += sprintf(pstr, ",%d", rand_smallint());
+    } else if (strcasecmp(data_type[i % c], "INT") == 0) {
+      pstr += sprintf(pstr, ",%d", rand_int());
+    } else if (strcasecmp(data_type[i % c], "BIGINT") == 0) {
+      pstr += sprintf(pstr, ",%" PRId64, rand_bigint());
+    } else if (strcasecmp(data_type[i % c], "FLOAT") == 0) {
+      pstr += sprintf(pstr, ",%10.4f", rand_float());
+    } else if (strcasecmp(data_type[i % c], "DOUBLE") == 0) {
       double t = rand_double();
-      pstr += sprintf(pstr, ", %20.8f", t);
-    } else if (strcasecmp(data_type[i % c], "bool") == 0) {
+      pstr += sprintf(pstr, ",%20.8f", t);
+    } else if (strcasecmp(data_type[i % c], "BOOL") == 0) {
       bool b = taosRandom() & 1;
-      pstr += sprintf(pstr, ", %s", b ? "true" : "false");
-    } else if (strcasecmp(data_type[i % c], "binary") == 0) {
+      pstr += sprintf(pstr, ",%s", b ? "true" : "false");
+    } else if (strcasecmp(data_type[i % c], "BINARY") == 0) {
       char *s = malloc(lenOfBinary);
       rand_string(s, lenOfBinary);
-      pstr += sprintf(pstr, ", \"%s\"", s);
+      pstr += sprintf(pstr, ",\"%s\"", s);
       free(s);
-    } else if (strcasecmp(data_type[i % c], "nchar") == 0) {
+    } else if (strcasecmp(data_type[i % c], "NCHAR") == 0) {
       char *s = malloc(lenOfBinary);
       rand_string(s, lenOfBinary);
-      pstr += sprintf(pstr, ", \"%s\"", s);
+      pstr += sprintf(pstr, ",\"%s\"", s);
       free(s);
     }
 
@@ -4588,7 +4651,7 @@ static int prepareSampleDataForSTable(SSuperTable *superTblInfo) {
   sampleDataBuf = calloc(
             superTblInfo->lenOfOneRow * MAX_SAMPLES_ONCE_FROM_FILE, 1);
   if (sampleDataBuf == NULL) {
-      errorPrint("%s() LN%d, Failed to calloc %"PRId64" Bytes, reason:%s\n",
+      errorPrint("%s() LN%d, Failed to calloc %"PRIu64" Bytes, reason:%s\n",
               __func__, __LINE__,
               superTblInfo->lenOfOneRow * MAX_SAMPLES_ONCE_FROM_FILE,
               strerror(errno));
@@ -4619,14 +4682,18 @@ static int64_t execInsert(threadInfo *pThreadInfo, char *buffer, int k)
   if (superTblInfo) {
     if (0 == strncasecmp(superTblInfo->insertMode, "taosc", strlen("taosc"))) {
       affectedRows = queryDbExec(pThreadInfo->taos, buffer, INSERT_TYPE, false);
-    } else {
-      if (0 != postProceSql(g_Dbs.host, g_Dbs.port, buffer)) {
+    } else if (0 == strncasecmp(superTblInfo->insertMode, "rest", strlen("rest"))) {
+      if (0 != postProceSql(g_Dbs.host, &g_Dbs.serv_addr, g_Dbs.port, buffer)) {
         affectedRows = -1;
         printf("========restful return fail, threadID[%d]\n",
             pThreadInfo->threadID);
       } else {
         affectedRows = k;
       }
+    } else {
+      errorPrint("%s() LN%d: unknown insert mode: %s\n",
+        __func__, __LINE__, superTblInfo->insertMode);
+      affectedRows = 0;
     }
   } else {
     affectedRows = queryDbExec(pThreadInfo->taos, buffer, INSERT_TYPE, false);
@@ -4635,18 +4702,17 @@ static int64_t execInsert(threadInfo *pThreadInfo, char *buffer, int k)
   return affectedRows;
 }
 
-static void getTableName(char *pTblName, threadInfo* pThreadInfo, int64_t tableSeq)
+static void getTableName(char *pTblName, threadInfo* pThreadInfo, uint64_t tableSeq)
 {
   SSuperTable* superTblInfo = pThreadInfo->superTblInfo;
   if (superTblInfo) {
-    if ((superTblInfo->childTblOffset >= 0)
-            && (superTblInfo->childTblLimit > 0)) {
+    if (superTblInfo->childTblLimit > 0) {
         snprintf(pTblName, TSDB_TABLE_NAME_LEN, "%s",
             superTblInfo->childTblName +
             (tableSeq - superTblInfo->childTblOffset) * TSDB_TABLE_NAME_LEN);
     } else {
 
-        verbosePrint("[%d] %s() LN%d: from=%"PRId64" count=%"PRId64" seq=%"PRId64"\n",
+        verbosePrint("[%d] %s() LN%d: from=%"PRIu64" count=%"PRIu64" seq=%"PRIu64"\n",
                 pThreadInfo->threadID, __func__, __LINE__,
                 pThreadInfo->start_table_from,
                 pThreadInfo->ntables, tableSeq);
@@ -4654,31 +4720,31 @@ static void getTableName(char *pTblName, threadInfo* pThreadInfo, int64_t tableS
             superTblInfo->childTblName + tableSeq * TSDB_TABLE_NAME_LEN);
     }
   } else {
-    snprintf(pTblName, TSDB_TABLE_NAME_LEN, "%s%"PRId64"",
+    snprintf(pTblName, TSDB_TABLE_NAME_LEN, "%s%"PRIu64"",
         g_args.tb_prefix, tableSeq);
   }
 }
 
 static int64_t generateDataTail(
         SSuperTable* superTblInfo,
-        int64_t batch, char* buffer, int64_t remainderBufLen, int64_t insertRows,
+        uint64_t batch, char* buffer, int64_t remainderBufLen, int64_t insertRows,
         int64_t startFrom, int64_t startTime, int64_t *pSamplePos, int64_t *dataLen) {
-  int64_t len = 0;
-  int ncols_per_record = 1; // count first col ts
+  uint64_t len = 0;
+  uint32_t ncols_per_record = 1; // count first col ts
 
   char *pstr = buffer;
 
   if (superTblInfo == NULL) {
-    int datatypeSeq = 0;
+    uint32_t datatypeSeq = 0;
     while(g_args.datatype[datatypeSeq]) {
         datatypeSeq ++;
         ncols_per_record ++;
     }
   }
 
-  verbosePrint("%s() LN%d batch=%"PRId64"\n", __func__, __LINE__, batch);
+  verbosePrint("%s() LN%d batch=%"PRIu64"\n", __func__, __LINE__, batch);
 
-  int64_t k = 0;
+  uint64_t k = 0;
   for (k = 0; k < batch;) {
     char data[MAX_DATA_SIZE];
     memset(data, 0, MAX_DATA_SIZE);
@@ -4753,7 +4819,7 @@ static int64_t generateDataTail(
       remainderBufLen -= retLen;
     }
 
-    verbosePrint("%s() LN%d len=%"PRId64" k=%"PRId64" \nbuffer=%s\n",
+    verbosePrint("%s() LN%d len=%"PRIu64" k=%"PRIu64" \nbuffer=%s\n",
             __func__, __LINE__, len, k, buffer);
 
     startFrom ++;
@@ -4835,12 +4901,12 @@ static int generateSQLHead(char *tableName, int32_t tableSeq,
 }
 
 static int64_t generateInterlaceDataBuffer(
-        char *tableName, int64_t batchPerTbl, int64_t i, int64_t batchPerTblTimes,
-        int64_t tableSeq,
+        char *tableName, uint64_t batchPerTbl, uint64_t i, uint64_t batchPerTblTimes,
+        uint64_t tableSeq,
         threadInfo *pThreadInfo, char *buffer,
-        int64_t insertRows,
+        uint64_t insertRows,
         int64_t startTime,
-        int64_t *pRemainderBufLen)
+        uint64_t *pRemainderBufLen)
 {
   assert(buffer);
   char *pstr = buffer;
@@ -4853,7 +4919,7 @@ static int64_t generateInterlaceDataBuffer(
     return 0;
   }
   // generate data buffer
-  verbosePrint("[%d] %s() LN%d i=%"PRId64" buffer:\n%s\n",
+  verbosePrint("[%d] %s() LN%d i=%"PRIu64" buffer:\n%s\n",
             pThreadInfo->threadID, __func__, __LINE__, i, buffer);
 
   pstr += headLen;
@@ -4861,7 +4927,7 @@ static int64_t generateInterlaceDataBuffer(
 
   int64_t dataLen = 0;
 
-  verbosePrint("[%d] %s() LN%d i=%"PRId64" batchPerTblTimes=%"PRId64" batchPerTbl = %"PRId64"\n",
+  verbosePrint("[%d] %s() LN%d i=%"PRIu64" batchPerTblTimes=%"PRIu64" batchPerTbl = %"PRIu64"\n",
             pThreadInfo->threadID, __func__, __LINE__,
             i, batchPerTblTimes, batchPerTbl);
 
@@ -4883,7 +4949,7 @@ static int64_t generateInterlaceDataBuffer(
     pstr += dataLen;
     *pRemainderBufLen -= dataLen;
   } else {
-    debugPrint("%s() LN%d, generated data tail: %"PRId64", not equal batch per table: %"PRId64"\n",
+    debugPrint("%s() LN%d, generated data tail: %"PRIu64", not equal batch per table: %"PRIu64"\n",
             __func__, __LINE__, k, batchPerTbl);
     pstr -= headLen;
     pstr[0] = '\0';
@@ -4978,10 +5044,10 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
   // TODO: prompt tbl count multple interlace rows and batch
   //
 
-  int64_t maxSqlLen = superTblInfo?superTblInfo->maxSqlLen:g_args.max_sql_len;
+  uint64_t maxSqlLen = superTblInfo?superTblInfo->maxSqlLen:g_args.max_sql_len;
   char* buffer = calloc(maxSqlLen, 1);
   if (NULL == buffer) {
-    errorPrint( "%s() LN%d, Failed to alloc %"PRId64" Bytes, reason:%s\n",
+    errorPrint( "%s() LN%d, Failed to alloc %"PRIu64" Bytes, reason:%s\n",
               __func__, __LINE__, maxSqlLen, strerror(errno));
     return NULL;
   }
@@ -4993,18 +5059,18 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
 
   int64_t nTimeStampStep = superTblInfo?superTblInfo->timeStampStep:DEFAULT_TIMESTAMP_STEP;
 
-  int insert_interval =
+  uint64_t insert_interval =
       superTblInfo?superTblInfo->insertInterval:g_args.insert_interval;
-  int64_t st = 0;
-  int64_t et = 0xffffffff;
+  uint64_t st = 0;
+  uint64_t et = UINT64_MAX;
 
-  int64_t lastPrintTime = taosGetTimestampMs();
-  int64_t startTs = taosGetTimestampMs();
-  int64_t endTs;
+  uint64_t lastPrintTime = taosGetTimestampMs();
+  uint64_t startTs = taosGetTimestampMs();
+  uint64_t endTs;
 
-  int64_t tableSeq = pThreadInfo->start_table_from;
+  uint64_t tableSeq = pThreadInfo->start_table_from;
 
-  debugPrint("[%d] %s() LN%d: start_table_from=%"PRId64" ntables=%"PRId64" insertRows=%"PRId64"\n",
+  debugPrint("[%d] %s() LN%d: start_table_from=%"PRIu64" ntables=%"PRIu64" insertRows=%"PRIu64"\n",
           pThreadInfo->threadID, __func__, __LINE__, pThreadInfo->start_table_from,
           pThreadInfo->ntables, insertRows);
 
@@ -5036,7 +5102,7 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
     }
     // generate data
     memset(buffer, 0, maxSqlLen);
-    int64_t remainderBufLen = maxSqlLen;
+    uint64_t remainderBufLen = maxSqlLen;
 
     char *pstr = buffer;
 
@@ -5055,7 +5121,7 @@ static void* syncWriteInterlace(threadInfo *pThreadInfo) {
         return NULL;
       }
 
-      int64_t oldRemainderLen = remainderBufLen;
+      uint64_t oldRemainderLen = remainderBufLen;
       int64_t generated = generateInterlaceDataBuffer(
         tableName, batchPerTbl, i, batchPerTblTimes,
         tableSeq,
@@ -5425,6 +5491,32 @@ static void *asyncWrite(void *sarg) {
   return NULL;
 }
 
+static int convertHostToServAddr(char *host, uint16_t port, struct sockaddr_in *serv_addr)
+{
+  uint16_t rest_port = port + TSDB_PORT_HTTP;
+  struct hostent *server = gethostbyname(host);
+  if ((server == NULL) || (server->h_addr == NULL)) {
+    errorPrint("%s", "ERROR, no such host");
+    return -1;
+  }
+
+  debugPrint("h_name: %s\nh_addr=%p\nh_addretype: %s\nh_length: %d\n",
+            server->h_name,
+            server->h_addr,
+            (server->h_addrtype == AF_INET)?"ipv4":"ipv6",
+            server->h_length);
+
+  memset(serv_addr, 0, sizeof(struct sockaddr_in));
+  serv_addr->sin_family = AF_INET;
+  serv_addr->sin_port = htons(rest_port);
+#ifdef WINDOWS
+  serv_addr->sin_addr.s_addr = inet_addr(host);
+#else
+  memcpy(&(serv_addr->sin_addr.s_addr), server->h_addr, server->h_length);
+#endif
+  return 0;
+}
+
 static void startMultiThreadInsertData(int threads, char* db_name,
         char* precision,SSuperTable* superTblInfo) {
 
@@ -5510,15 +5602,15 @@ static void startMultiThreadInsertData(int threads, char* db_name,
   int startFrom;
 
   if (superTblInfo) {
-    int limit, offset;
+    int64_t limit;
+    uint64_t offset;
 
     if ((NULL != g_args.sqlFile) && (superTblInfo->childTblExists == TBL_NO_EXISTS) &&
             ((superTblInfo->childTblOffset != 0) || (superTblInfo->childTblLimit >= 0))) {
       printf("WARNING: offset and limit will not be used since the child tables not exists!\n");
     }
 
-    if ((superTblInfo->childTblExists == TBL_ALREADY_EXISTS)
-            && (superTblInfo->childTblOffset >= 0)) {
+    if (superTblInfo->childTblExists == TBL_ALREADY_EXISTS) {
       if ((superTblInfo->childTblLimit < 0)
           || ((superTblInfo->childTblOffset + superTblInfo->childTblLimit)
             > (superTblInfo->childTblCount))) {
@@ -5563,7 +5655,7 @@ static void startMultiThreadInsertData(int threads, char* db_name,
       exit(-1);
     }
 
-    int64_t childTblCount;
+    uint64_t childTblCount;
     getChildNameOfSuperTableWithLimitAndOffset(
         taos,
         db_name, superTblInfo->sTblName,
@@ -5588,6 +5680,12 @@ static void startMultiThreadInsertData(int threads, char* db_name,
     b = ntables % threads;
   }
 
+  if ((superTblInfo)
+      && (0 == strncasecmp(superTblInfo->insertMode, "rest", strlen("rest")))) {
+    if (convertHostToServAddr(g_Dbs.host, g_Dbs.port, &(g_Dbs.serv_addr)) != 0)
+      exit(-1);
+  }
+
   for (int i = 0; i < threads; i++) {
     threadInfo *t_info = infos + i;
     t_info->threadID = i;
@@ -5596,7 +5694,7 @@ static void startMultiThreadInsertData(int threads, char* db_name,
     t_info->superTblInfo = superTblInfo;
 
     t_info->start_time = start_time;
-    t_info->minDelay = INT16_MAX;
+    t_info->minDelay = UINT64_MAX;
 
     if ((NULL == superTblInfo) ||
             (0 == strncasecmp(superTblInfo->insertMode, "taosc", 5))) {
@@ -5641,7 +5739,7 @@ static void startMultiThreadInsertData(int threads, char* db_name,
 
   int64_t totalDelay = 0;
   int64_t maxDelay = 0;
-  int64_t minDelay = INT16_MAX;
+  int64_t minDelay = UINT64_MAX;
   int64_t cntDelay = 1;
   double  avgDelay = 0;
 
@@ -5745,11 +5843,11 @@ static void *readTable(void *sarg) {
   printf("%d records:\n", totalData);
   fprintf(fp, "| QFunctions |    QRecords    |   QSpeed(R/s)   |  QLatency(ms) |\n");
 
-  for (int j = 0; j < n; j++) {
+  for (uint64_t j = 0; j < n; j++) {
     double totalT = 0;
-    int count = 0;
-    for (int i = 0; i < num_of_tables; i++) {
-      sprintf(command, "select %s from %s%d where ts>= %" PRId64,
+    uint64_t count = 0;
+    for (uint64_t i = 0; i < num_of_tables; i++) {
+      sprintf(command, "select %s from %s%"PRIu64" where ts>= %" PRIu64,
               aggreFunc[j], tb_prefix, i, sTime);
 
       double t = taosGetTimestampMs();
@@ -5985,8 +6083,8 @@ static void *specifiedTableQuery(void *sarg) {
   int queryTimes = g_queryInfo.specifiedQueryInfo.queryTimes;
 
   int totalQueried = 0;
-  int64_t  lastPrintTime = taosGetTimestampMs();
-  int64_t  startTs = taosGetTimestampMs();
+  uint64_t  lastPrintTime = taosGetTimestampMs();
+  uint64_t  startTs = taosGetTimestampMs();
 
   while(queryTimes --) {
     if (g_queryInfo.specifiedQueryInfo.queryInterval && (et - st) <
@@ -5996,7 +6094,7 @@ static void *specifiedTableQuery(void *sarg) {
 
     st = taosGetTimestampMs();
 
-    if (0 == strncasecmp(g_queryInfo.queryMode, "taosc", 5)) {
+    if (0 == strncasecmp(g_queryInfo.queryMode, "taosc", strlen("taosc"))) {
       int64_t t1 = taosGetTimestampMs();
       char tmpFile[MAX_FILE_NAME_LEN*2] = {0};
       if (g_queryInfo.specifiedQueryInfo.result[pThreadInfo->querySeq][0] != 0) {
@@ -6009,9 +6107,9 @@ static void *specifiedTableQuery(void *sarg) {
       int64_t t2 = taosGetTimestampMs();
       printf("=[taosc] thread[%"PRId64"] complete one sql, Spent %10.3f s\n",
               taosGetSelfPthreadId(), (t2 - t1)/1000.0);
-    } else {
+    } else if (0 == strncasecmp(g_queryInfo.queryMode, "rest", strlen("rest"))) {
       int64_t t1 = taosGetTimestampMs();
-      int retCode = postProceSql(g_queryInfo.host,
+      int retCode = postProceSql(g_queryInfo.host, &(g_queryInfo.serv_addr),
               g_queryInfo.port,
               g_queryInfo.specifiedQueryInfo.sql[pThreadInfo->querySeq]);
       if (0 != retCode) {
@@ -6022,16 +6120,20 @@ static void *specifiedTableQuery(void *sarg) {
       printf("=[restful] thread[%"PRId64"] complete one sql, Spent %10.3f s\n",
               taosGetSelfPthreadId(), (t2 - t1)/1000.0);
 
+    } else {
+      errorPrint("%s() LN%d, unknown query mode: %s\n",
+        __func__, __LINE__, g_queryInfo.queryMode);
+      return NULL;
     }
     totalQueried ++;
     g_queryInfo.specifiedQueryInfo.totalQueried ++;
 
     et = taosGetTimestampMs();
 
-    int64_t  currentPrintTime = taosGetTimestampMs();
-    int64_t  endTs = taosGetTimestampMs();
+    uint64_t  currentPrintTime = taosGetTimestampMs();
+    uint64_t  endTs = taosGetTimestampMs();
     if (currentPrintTime - lastPrintTime > 30*1000) {
-      debugPrint("%s() LN%d, endTs=%"PRId64"ms, startTs=%"PRId64"ms\n",
+      debugPrint("%s() LN%d, endTs=%"PRIu64"ms, startTs=%"PRIu64"ms\n",
           __func__, __LINE__, endTs, startTs);
       printf("thread[%d] has currently completed queries: %d, QPS: %10.6f\n",
                     pThreadInfo->threadID,
@@ -6128,7 +6230,7 @@ static void *superTableQuery(void *sarg) {
       }
     }
     et = taosGetTimestampMs();
-    printf("####thread[%"PRId64"] complete all sqls to allocate all sub-tables[%"PRId64" - %"PRId64"] once queries duration:%.4fs\n\n",
+    printf("####thread[%"PRId64"] complete all sqls to allocate all sub-tables[%"PRIu64" - %"PRIu64"] once queries duration:%.4fs\n\n",
             taosGetSelfPthreadId(),
             pThreadInfo->start_table_from,
             pThreadInfo->end_table_to,
@@ -6171,6 +6273,12 @@ static int queryTestProcess() {
 
   printfQuerySystemInfo(taos);
 
+  if (0 == strncasecmp(g_queryInfo.queryMode, "rest", strlen("rest"))) {
+    if (convertHostToServAddr(
+        g_queryInfo.host, g_queryInfo.port, &g_queryInfo.serv_addr) != 0)
+      exit(-1);
+  }
+
   pthread_t  *pids  = NULL;
   threadInfo *infos = NULL;
   //==== create sub threads for query from specify table
@@ -6388,7 +6496,7 @@ static void *superSubscribe(void *sarg) {
       }
     }
     //et = taosGetTimestampMs();
-    //printf("========thread[%"PRId64"] complete all sqls to super table once queries duration:%.4fs\n", taosGetSelfPthreadId(), (double)(et - st)/1000.0);
+    //printf("========thread[%"PRIu64"] complete all sqls to super table once queries duration:%.4fs\n", taosGetSelfPthreadId(), (double)(et - st)/1000.0);
   } while(0);
 
   // start loop to consume result
@@ -6454,7 +6562,7 @@ static void *specifiedSubscribe(void *sarg) {
   do {
     //if (g_queryInfo.specifiedQueryInfo.queryInterval && (et - st) < g_queryInfo.specifiedQueryInfo.queryInterval) {
     //  taosMsleep(g_queryInfo.specifiedQueryInfo.queryInterval- (et - st)); // ms
-    //  //printf("========sleep duration:%"PRId64 "========inserted rows:%d, table range:%d - %d\n", (1000 - (et - st)), i, pThreadInfo->start_table_from, pThreadInfo->end_table_to);
+    //  //printf("========sleep duration:%"PRIu64 "========inserted rows:%d, table range:%d - %d\n", (1000 - (et - st)), i, pThreadInfo->start_table_from, pThreadInfo->end_table_to);
     //}
 
     //st = taosGetTimestampMs();
@@ -6474,7 +6582,7 @@ static void *specifiedSubscribe(void *sarg) {
       }
     }
     //et = taosGetTimestampMs();
-    //printf("========thread[%"PRId64"] complete all sqls to super table once queries duration:%.4fs\n", taosGetSelfPthreadId(), (double)(et - st)/1000.0);
+    //printf("========thread[%"PRIu64"] complete all sqls to super table once queries duration:%.4fs\n", taosGetSelfPthreadId(), (double)(et - st)/1000.0);
   } while(0);
 
   // start loop to consume result
@@ -6544,8 +6652,9 @@ static int subscribeTestProcess() {
   //==== create sub threads for query from super table
   if ((g_queryInfo.specifiedQueryInfo.sqlCount <= 0) ||
           (g_queryInfo.specifiedQueryInfo.concurrent <= 0)) {
-    errorPrint("%s() LN%d, query sqlCount %"PRId64" or concurrent %"PRId64" is not correct.\n",
-              __func__, __LINE__, g_queryInfo.specifiedQueryInfo.sqlCount,
+    errorPrint("%s() LN%d, query sqlCount %"PRIu64" or concurrent %"PRIu64" is not correct.\n",
+              __func__, __LINE__,
+              g_queryInfo.specifiedQueryInfo.sqlCount,
               g_queryInfo.specifiedQueryInfo.concurrent);
     exit(-1);
   }

src/kit/taosdump/taosdump.c

@@ -99,11 +99,13 @@ enum _describe_table_index {
   TSDB_MAX_DESCRIBE_METRIC
 };
 
+#define COL_NOTE_LEN    128
+
 typedef struct {
   char field[TSDB_COL_NAME_LEN + 1];
   char type[16];
   int length;
-  char note[128];
+  char note[COL_NOTE_LEN];
 } SColDes;
 
 typedef struct {
@@ -523,7 +525,7 @@ int main(int argc, char *argv[]) {
 
   /* Parse our arguments; every option seen by parse_opt will be
      reflected in arguments. */
-  if (argc > 1)
+  if (argc > 2)
     parse_args(argc, argv, &g_args);
 
   argp_parse(&argp, argc, argv, 0, 0, &g_args);
@@ -1188,16 +1190,16 @@ int taosGetTableDes(char* dbName, char *table, STableDef *tableDes, TAOS* taosCo
       case TSDB_DATA_TYPE_BINARY: {
         memset(tableDes->cols[i].note, 0, sizeof(tableDes->cols[i].note));
         tableDes->cols[i].note[0] = '\'';
-        char tbuf[COMMAND_SIZE];
-        converStringToReadable((char *)row[0], length[0], tbuf, COMMAND_SIZE);
+        char tbuf[COL_NOTE_LEN];
+        converStringToReadable((char *)row[0], length[0], tbuf, COL_NOTE_LEN);
         char* pstr = stpcpy(&(tableDes->cols[i].note[1]), tbuf);
         *(pstr++) = '\'';
         break;
       }
       case TSDB_DATA_TYPE_NCHAR: {
         memset(tableDes->cols[i].note, 0, sizeof(tableDes->cols[i].note));
-        char tbuf[COMMAND_SIZE];
-        convertNCharToReadable((char *)row[0], length[0], tbuf, COMMAND_SIZE);
+        char tbuf[COL_NOTE_LEN-2];    // need reserve 2 bytes for ' ' 
+        convertNCharToReadable((char *)row[0], length[0], tbuf, COL_NOTE_LEN);
         sprintf(tableDes->cols[i].note, "\'%s\'", tbuf);
         break;
       }

src/rpc/src/rpcMain.c

@@ -295,7 +295,7 @@ void *rpcOpen(const SRpcInit *pInit) {
       return NULL;
     }
   } else {
-    pRpc->pCache = rpcOpenConnCache(pRpc->sessions, rpcCloseConn, pRpc->tmrCtrl, pRpc->idleTime * 30); 
+    pRpc->pCache = rpcOpenConnCache(pRpc->sessions, rpcCloseConn, pRpc->tmrCtrl, pRpc->idleTime * 20); 
     if ( pRpc->pCache == NULL ) {
       tError("%s failed to init connection cache", pRpc->label);
       rpcClose(pRpc);

src/util/src/tnettest.c

@@ -539,7 +539,7 @@ static void taosNetTestServer(char *host, int32_t startPort, int32_t pkgLen) {
 }
 
 void taosNetTest(char *role, char *host, int32_t port, int32_t pkgLen) {
-//  tscEmbedded = 1;
+  tscEmbedded = 1;
   if (host == NULL) host = tsLocalFqdn;
   if (port == 0) port = tsServerPort;
   if (pkgLen <= 10) pkgLen = 1000;
@@ -550,6 +550,7 @@ void taosNetTest(char *role, char *host, int32_t port, int32_t pkgLen) {
   } else if (0 == strcmp("server", role)) {
     taosNetTestServer(host, port, pkgLen);
   } else if (0 == strcmp("rpc", role)) {
+    tscEmbedded = 0;
     taosNetTestRpc(host, port, pkgLen);
   } else if (0 == strcmp("sync", role)) {
     taosNetCheckSync(host, port);
@@ -559,5 +560,5 @@ void taosNetTest(char *role, char *host, int32_t port, int32_t pkgLen) {
     taosNetTestStartup(host, port);
   }
 
-//  tscEmbedded = 0;
+  tscEmbedded = 0;
 }

tests/pytest/crash_gen/valgrind_taos.supp

@@ -17332,3 +17332,168 @@
    fun:PyVectorcall_Call
    fun:_PyEval_EvalFrameDefault
 }
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:lib_build_and_cache_attr
+   fun:lib_getattr
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyFunction_Vectorcall
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyEval_EvalCodeWithName
+   fun:PyEval_EvalCode
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyVectorcall_Call
+   fun:_PyEval_EvalFrameDefault
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:lib_build_and_cache_attr
+   fun:lib_getattr
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyFunction_Vectorcall
+   fun:_PyEval_EvalFrameDefault
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   fun:PyEval_EvalCode
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyEval_EvalCodeWithName
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:_my_Py_InitModule
+   fun:lib_getattr
+   fun:b_init_cffi_1_0_external_module
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyObject_CallMethod
+   fun:_cffi_init
+   fun:PyInit__bcrypt
+   fun:_PyImport_LoadDynamicModuleWithSpec
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyVectorcall_Call
+   fun:_PyEval_EvalFrameDefault
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:_PyObject_GC_New
+   fun:lib_getattr
+   fun:ffi_internal_new
+   fun:b_init_cffi_1_0_external_module
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyObject_CallMethod
+   fun:_cffi_init
+   fun:PyInit__bcrypt
+   fun:_PyImport_LoadDynamicModuleWithSpec
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyVectorcall_Call
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:lib_build_cpython_func.isra.87
+   fun:lib_build_and_cache_attr
+   fun:lib_getattr
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyFunction_Vectorcall
+   fun:_PyEval_EvalFrameDefault
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:lib_build_and_cache_attr
+   fun:lib_getattr
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyFunction_Vectorcall
+   fun:_PyEval_EvalFrameDefault
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   obj:/usr/bin/python3.8
+   fun:_PyEval_EvalFrameDefault
+   fun:_PyEval_EvalCodeWithName
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:_my_Py_InitModule
+   fun:b_init_cffi_1_0_external_module
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyObject_CallMethod
+   fun:_cffi_init
+   fun:PyInit__bcrypt
+   fun:_PyImport_LoadDynamicModuleWithSpec
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyVectorcall_Call
+   fun:_PyEval_EvalFrameDefault
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:_my_Py_InitModule
+   fun:b_init_cffi_1_0_external_module
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyObject_CallMethod
+   fun:PyInit__openssl
+   fun:_PyImport_LoadDynamicModuleWithSpec
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyVectorcall_Call
+   fun:_PyEval_EvalFrameDefault
+}
+{
+   <insert_a_suppression_name_here>
+   Memcheck:Leak
+   match-leak-kinds: definite
+   fun:malloc
+   fun:_PyObject_GC_New
+   fun:ffi_internal_new
+   fun:b_init_cffi_1_0_external_module
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyObject_CallMethod
+   fun:_cffi_init
+   fun:PyInit__bcrypt
+   fun:_PyImport_LoadDynamicModuleWithSpec
+   obj:/usr/bin/python3.8
+   obj:/usr/bin/python3.8
+   fun:PyVectorcall_Call
+}
\ No newline at end of file

tests/pytest/fulltest.sh

@@ -23,6 +23,7 @@ python3 ./test.py -f insert/insertIntoTwoTables.py
 python3 ./test.py -f insert/before_1970.py
 python3 bug2265.py
 python3 ./test.py -f insert/bug3654.py
+python3 ./test.py -f insert/insertDynamicColBeforeVal.py
 
 #table
 python3 ./test.py -f table/alter_wal0.py
@@ -225,6 +226,7 @@ python3 ./test.py -f query/queryStddevWithGroupby.py
 python3 ./test.py -f query/querySecondtscolumnTowherenow.py
 python3 ./test.py -f query/queryFilterTswithDateUnit.py
 python3 ./test.py -f query/queryTscomputWithNow.py
+python3 ./test.py -f query/computeErrorinWhere.py
 
 
 

tests/pytest/insert/insertDynamicColBeforeVal.py

+###################################################################
+#           Copyright (c) 2016 by TAOS Technologies, Inc.
+#                     All rights reserved.
+#
+#  This file is proprietary and confidential to TAOS Technologies.
+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug("start to execute %s" % __file__)
+        tdSql.init(conn.cursor(), logSql)
+
+    def run(self):
+        tdSql.prepare()
+        tdSql.execute("drop database if exists db")
+        tdSql.execute("create database  if not exists db keep 3650")
+        tdSql.execute("use db")
+
+        tdLog.printNoPrefix("==========step1:create table")
+        tdSql.execute(
+            "create table stb1 (ts timestamp, c11 int, c12 float ) TAGS(t11 int, t12 int )"
+        )
+
+        tdLog.printNoPrefix("==========step2:insert data with new syntax")
+        tdSql.execute(
+            "insert into t1 using stb1(t11, t12) tags(11, 12) (ts, c11, c12) values (now, 10, 20)"
+        )
+
+        # case for tag-value
+        tdSql.execute(
+            "insert into t2 using stb1(t11) tags(21) (ts, c11, c12) values (now-1m, 11, 21)"
+        )
+        tdSql.execute(
+            "insert into t3 using stb1 tags(31, 32) (ts, c11, c12) values (now-2m, 12, 22)"
+        )
+        tdSql.error(
+            "insert into t4 using stb1(t11, t12)  (ts, c11, c12) values (now-3m, 13, 23)"
+        )
+        tdSql.error(
+            "insert into t5 using stb1(t11, t12) tags() (ts, c11, c12) values (now-4m, 14, 24)"
+        )
+        tdSql.error(
+            "insert into t6 using stb1(t11, t12) tags(41) (ts, c11, c12) values (now-5m, 15, 25)"
+        )
+        tdSql.error(
+            "insert into t7 using stb1(t12) tags(51, 52) (ts, c11, c12) values (now-6m, 16, 26)"
+        )
+        tdSql.execute(
+            "insert into t8 using stb1(t11, t12) tags('61', 62) (ts, c11, c12) values (now-7m, 17, 27)"
+        )
+
+
+        # case for col-value
+        tdSql.execute(
+            "insert into t9 using stb1(t11, t12) tags(71, 72) values (now-8m, 18, 28)"
+        )
+        tdSql.error(
+            "insert into t10 using stb1(t11, t12) tags(81, 82) (ts, c11, c12) values ()"
+        )
+        tdSql.error(
+            "insert into t11 using stb1(t11, t12) tags(91, 92) (ts, c11, c12) "
+        )
+        tdSql.error(
+            "insert into t12 using stb1(t11, t12) tags(101, 102) values (now-9m, 19)"
+        )
+        tdSql.error(
+            "insert into t13 using stb1(t11, t12) tags(111, 112) (ts, c11) values (now-10m, 110, 210)"
+        )
+        tdSql.error(
+            "insert into t14 using stb1(t11, t12) tags(121, 122) (ts, c11, c12) values (now-11m, 111)"
+        )
+        tdSql.execute(
+            "insert into t15 using stb1(t11, t12) tags(131, 132) (ts, c11, c12) values (now-12m, NULL , 212)"
+        )
+        tdSql.execute(
+            "insert into t16 using stb1(t11, t12) tags(141, 142) (ts, c11, c12) values (now-13m, 'NULL', 213)"
+        )
+        tdSql.error(
+            "insert into t17 using stb1(t11, t12) tags(151, 152) (ts, c11, c12) values (now-14m, Nan, 214)"
+        )
+        tdSql.error(
+            "insert into t18 using stb1(t11, t12) tags(161, 162) (ts, c11, c12) values (now-15m, 'NaN', 215)"
+        )
+        tdSql.execute(
+            "insert into t19 using stb1(t11, t12) tags(171, 172) (ts, c11) values (now-16m, 216)"
+        )
+        tdSql.error(
+            "insert into t20 using stb1(t11, t12) tags(181, 182) (c11, c12) values (117, 217)"
+        )
+
+        # multi-col_value
+        tdSql.execute(
+            "insert into t21 using stb1(t11, t12) tags(191, 192) (ts, c11, c12) values (now-17m, 118, 218)(now-18m, 119, 219)"
+        )
+        tdSql.execute(
+            "insert into t22 using stb1(t11, t12) tags(201, 202) values (now-19m, 120, 220)(now-19m, 121, 221)"
+        )
+        tdSql.error(
+            "insert into t23 using stb1(t11, t12) tags(211, 212) values (now-20m, 122, 222) (ts, c11, c12) values (now-21m, 123, 223)"
+        )
+        tdSql.error(
+            "insert into t24 using stb1(t11, t12) tags(221, 222) (ts, c11, c12) values (now-22m, 124, 224) (ts, c11, c12) values (now-23m, 125, 225)"
+        )
+        tdSql.execute(
+            "insert into t25 (ts, c11, c12) using stb1(t11, t12) tags(231, 232) values (now-24m, 126, 226)(now-25m, 127, 227)"
+        )
+        tdSql.error(
+            "insert into t26 (ts, c11, c12) values (now-24m, 128, 228)(now-25m, 129, 229) using stb1(t11, t12) tags(241, 242) "
+        )
+        tdSql.error(
+            "insert into t27 (ts, c11, c12) values (now-24m, 130, 230) using stb1(t11, t12) tags(251, 252) "
+        )
+
+        tdSql.query("show tables")
+        tdSql.checkRows(21)
+
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success("%s successfully executed" % __file__)
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file

tests/pytest/query/computeErrorinWhere.py

+#  No part of this file may be reproduced, stored, transmitted,
+#  disclosed or used in any form or by any means other than as
+#  expressly provided by the written permission from Jianhui Tao
+#
+###################################################################
+
+# -*- coding: utf-8 -*-
+
+import sys
+from util.log import *
+from util.cases import *
+from util.sql import *
+from util.dnodes import *
+
+
+class TDTestCase:
+    def init(self, conn, logSql):
+        tdLog.debug(f"start to execute {__file__}")
+        tdSql.init(conn.cursor(), logSql)
+
+    def insertnow(self):
+        tdSql.execute("drop database if exists dbcom")
+        tdSql.execute("create database  if not exists dbcom keep 36500")
+        tdSql.execute("use dbcom")
+
+        tdSql.execute(
+            "create table stbcom (ts timestamp, c1 int, c2 tinyint, c3 smallint, c4 bigint, c5 float, c6 double) TAGS(t1 int)"
+        )
+        tdSql.execute("create table tcom1 using stbcom tags(1)")
+
+        # timestamp list:
+        #   0 -> "1970-01-01 08:00:00" | -28800000 -> "1970-01-01 00:00:00" | -946800000000 -> "1940-01-01 00:00:00"
+        #   -631180800000 -> "1950-01-01 00:00:00"
+
+        tdSql.execute("insert into tcom1 values (now-1d, 1, 11, 21, 31, 41.0, 51.1)")
+        tdSql.execute("insert into tcom1 values (now-2d, 2, 12, 22, 32, 42.0, 52.1)")
+        tdSql.execute("insert into tcom1 values (now-3d, 3, 13, 23, 33, 43.0, 53.1)")
+        tdSql.execute("insert into tcom1 values (now-4d, 4, 14, 24, 34, 44.0, 54.1)")
+
+    def querycom(self):
+        tdSql.query("select * from tcom1 where c1=2-1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c1=-1+2")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c1=1.0*1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c1=1.0/1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c1>1.0/1.0")
+        tdSql.checkRows(3)
+        tdSql.query("select * from tcom1 where c1<1.0/1.0")
+        tdSql.checkRows(0)
+
+        tdSql.query("select * from tcom1 where c2=12-1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c2=-1+12")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c2=11.0*1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c2=11.0/1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c2>11.0/1.0")
+        tdSql.checkRows(3)
+        tdSql.query("select * from tcom1 where c2<11.0/1.0")
+        tdSql.checkRows(0)
+
+        tdSql.query("select * from tcom1 where c3=22-1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c3=-1+22")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c3=21.0*1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c3=21.0/1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c3>21.0/1.0")
+        tdSql.checkRows(3)
+        tdSql.query("select * from tcom1 where c3<21.0/1.0")
+        tdSql.checkRows(0)
+
+        tdSql.query("select * from tcom1 where c4=32-1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c4=-1+32")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c4=31.0*1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c4=31.0/1.0")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c4>31.0/1.0")
+        tdSql.checkRows(3)
+        tdSql.query("select * from tcom1 where c4<31.0/1.0")
+        tdSql.checkRows(0)
+
+        tdSql.query("select * from tcom1 where c5=42-1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c5=-1+42")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c5=41*1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c5=41/1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c5>41/1")
+        tdSql.checkRows(3)
+        tdSql.query("select * from tcom1 where c5<41/1")
+        tdSql.checkRows(0)
+        tdSql.query("select * from tcom1 where c5=42.000000008-1.0000000099999999999999")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c5=42.0008-1.0000099999999999999")
+        tdSql.checkRows(0)
+
+        tdSql.query("select * from tcom1 where c6=52-0.9")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c6=-0.9+52")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c6=51.1*1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c6=51.1/1")
+        tdSql.checkRows(1)
+        tdSql.query("select * from tcom1 where c6>51.1/1")
+        tdSql.checkRows(3)
+        tdSql.query("select * from tcom1 where c6<51.1/1")
+        tdSql.checkRows(0)
+        tdSql.query("select * from tcom1 where c6=52.100000000000008-1.000000000000009")
+        tdSql.checkRows(1)
+
+
+    def run(self):
+        self.insertnow()
+        self.querycom()
+
+    def stop(self):
+        tdSql.close()
+        tdLog.success(f"{__file__} successfully executed")
+
+
+tdCases.addWindows(__file__, TDTestCase())
+tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file

tests/pytest/smoketest.sh

@@ -2,36 +2,36 @@
 ulimit -c unlimited
 
 # insert
-python3 ./test.py $1 -f insert/basic.py
-python3 ./test.py $1 -s && sleep 1
-python3 ./test.py $1 -f insert/bigint.py
-python3 ./test.py $1 -s && sleep 1
-python3 ./test.py $1 -f insert/nchar.py
-python3 ./test.py $1 -s && sleep 1
-python3 ./test.py $1 -f insert/multi.py
-python3 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f insert/basic.py
+python3.8 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f insert/bigint.py
+python3.8 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f insert/nchar.py
+python3.8 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f insert/multi.py
+python3.8 ./test.py $1 -s && sleep 1
 
 # table
-python3 ./test.py $1 -f table/column_name.py
-python3 ./test.py $1 -s && sleep 1
-python3 ./test.py $1 -f table/column_num.py
-python3 ./test.py $1 -s && sleep 1
-python3 ./test.py $1 -f table/db_table.py
-python3 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f table/column_name.py
+python3.8 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f table/column_num.py
+python3.8 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f table/db_table.py
+python3.8 ./test.py $1 -s && sleep 1
 
 # import
-python3 ./test.py $1 -f import_merge/importDataLastSub.py
-python3 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f import_merge/importDataLastSub.py
+python3.8 ./test.py $1 -s && sleep 1
 
 #tag 
-python3 ./test.py $1 -f tag_lite/filter.py
-python3 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f tag_lite/filter.py
+python3.8 ./test.py $1 -s && sleep 1
 
 #query
-python3 ./test.py $1 -f query/filter.py
-python3 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f query/filter.py
+python3.8 ./test.py $1 -s && sleep 1
 
 # client
-python3 ./test.py $1 -f client/client.py
-python3 ./test.py $1 -s && sleep 1
+python3.8 ./test.py $1 -f client/client.py
+python3.8 ./test.py $1 -s && sleep 1
 

tests/pytest/stream/cqSupportBefore1970.py

@@ -75,7 +75,7 @@ class TDTestCase:
         self.insertnow()
         self.cq()
         self.querycq()
-        
+
         # after wal and sync, check again
         tdSql.query("show dnodes")
         index = tdSql.getData(0, 0)

tests/pytest/util/sql.py

@@ -136,6 +136,11 @@ class TDSql:
     def checkData(self, row, col, data):
         self.checkRowCol(row, col) 
         if self.queryResult[row][col] != data:            
+            if self.cursor.istype(col, "TIMESTAMP") and self.queryResult[row][col] == datetime.datetime.fromisoformat(data):
+                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)) 

tests/script/general/parser/constCol.sim

@@ -358,6 +358,13 @@ if $data00 != 0.300000000 then
   return -1
 endi
 
+print =============================> td-3996
+sql select 'abc' as res from t1 where f1 < 0
+if $rows != 0 then
+  return -1
+endi
+
+
 print ======================udc with normal column group by
 
 sql_error select from t1

tests/script/general/parser/union.sim

@@ -139,6 +139,34 @@ if $data10 != 1 then
   return -1
 endi
 
+sql select 'ab' as options from union_tb1 limit 1 union all select 'dd' as options from union_tb0 limit 1;
+if $rows != 2 then
+  return -1
+endi
+
+if $data00 != @ab@ then
+  return -1
+endi
+
+if $data10 != @dd@ then
+  return -1
+endi
+
+
+sql select 'ab' as options from union_tb1 limit 1 union all select '1234567' as options from union_tb0 limit 1;
+if $rows != 2 then
+  return -1
+endi
+
+if $data00 != @ab@ then
+  return -1
+endi
+
+if $data10 != @1234567@ then
+  return -1
+endi
+
+
 # mixed order
 sql select ts, c1 from union_tb1 order by ts asc limit 10 union all select ts, c1 from union_tb0 order by ts desc limit 2 union all select ts, c1 from union_tb2 order by ts asc limit 10
 if $rows != 22 then
@@ -421,8 +449,18 @@ if $data10 != @union_db0@ then
   return -1
 endi
 
+sql select 'aaa' as option from union_tb1 where c1 < 0 limit 1 union all select 'bbb' as option from union_tb0 limit 1
+if $rows != 1 then
+  return -1
+endi
+
+if $data00 != @bbb@ then
+  return -1
+endi
+
+
 sql_error show tables union all show tables
 sql_error show stables union all show stables
 sql_error show databases union all show databases
 
-system sh/exec.sh -n dnode1 -s stop -x SIGINT
+system sh/exec.sh -n dnode1 -s stop -x SIGINT
\ No newline at end of file