diff --git a/cmake/install.inc b/cmake/install.inc
index 55b3fa188ff2479b245213ef5dab15cfa2909f02..b0e5c71022c7c30fefd79ed62830db6afeb953f2 100755
--- a/cmake/install.inc
+++ b/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-2.0.15-dist.jar DESTINATION connector/jdbc)
+    INSTALL(FILES ${LIBRARY_OUTPUT_PATH}/taos-jdbcdriver-2.0.16-dist.jar DESTINATION connector/jdbc)
   ENDIF ()
 ELSEIF (TD_DARWIN)
   SET(TD_MAKE_INSTALL_SH "${TD_COMMUNITY_DIR}/packaging/tools/make_install.sh")
diff --git a/src/connector/jdbc/.classpath b/src/connector/jdbc/.classpath
deleted file mode 100644
index a5d95095ccaaf9549ee22ff2fbf684bfa43d31c9..0000000000000000000000000000000000000000
--- a/src/connector/jdbc/.classpath
+++ /dev/null
@@ -1,32 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" output="target/classes" path="src/main/java">
-		<attributes>
-			<attribute name="optional" value="true"/>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
-		<attributes>
-			<attribute name="optional" value="true"/>
-			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="test" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="output" path="target/classes"/>
-</classpath>
diff --git a/src/connector/jdbc/.project b/src/connector/jdbc/.project
deleted file mode 100644
index 656ab58d205bf0e01c151728a75e5ab543facee6..0000000000000000000000000000000000000000
--- a/src/connector/jdbc/.project
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>taos-jdbcdriver</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.m2e.core.maven2Builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-		<nature>org.eclipse.m2e.core.maven2Nature</nature>
-	</natures>
-</projectDescription>
diff --git a/src/connector/jdbc/CMakeLists.txt b/src/connector/jdbc/CMakeLists.txt
index e289f1ae1b4823ad5c6fd580551a9ee3f9800d9e..fda0289a2a7c63d39a3d1732df3d2bac2a2195b5 100644
--- a/src/connector/jdbc/CMakeLists.txt
+++ b/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-2.0.15-dist.jar ${LIBRARY_OUTPUT_PATH}
+    COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_SOURCE_DIR}/target/taos-jdbcdriver-2.0.16-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})
diff --git a/src/connector/jdbc/deploy-pom.xml b/src/connector/jdbc/deploy-pom.xml
index 1a86bc57dcc86c45ef5deb05fc58b39ee0939059..5aa60c0df9311a18d5c849f125b24f6764579bdd 100755
--- a/src/connector/jdbc/deploy-pom.xml
+++ b/src/connector/jdbc/deploy-pom.xml
@@ -5,7 +5,7 @@
 
   <groupId>com.taosdata.jdbc</groupId>
   <artifactId>taos-jdbcdriver</artifactId>
-  <version>2.0.15</version>
+  <version>2.0.16</version>
   <packaging>jar</packaging>
 
   <name>JDBCDriver</name>
diff --git a/src/connector/jdbc/pom.xml b/src/connector/jdbc/pom.xml
index 9865fc7127b39debc965f6be9bad6e8485169416..d18d86258a41ef4420863eddc47c20b24407f49a 100755
--- a/src/connector/jdbc/pom.xml
+++ b/src/connector/jdbc/pom.xml
@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.taosdata.jdbc</groupId>
     <artifactId>taos-jdbcdriver</artifactId>
-    <version>2.0.15</version>
+    <version>2.0.16</version>
     <packaging>jar</packaging>
     <name>JDBCDriver</name>
     <url>https://github.com/taosdata/TDengine/tree/master/src/connector/jdbc</url>
@@ -49,6 +49,7 @@
                 </exclusion>
             </exclusions>
         </dependency>
+
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
@@ -56,12 +57,6 @@
             <scope>test</scope>
         </dependency>
 
-        <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.47</version>
-        </dependency>
-
         <!-- for restful -->
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
@@ -79,12 +74,6 @@
             <version>1.2.58</version>
         </dependency>
 
-        <dependency>
-            <groupId>mysql</groupId>
-            <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.49</version>
-        </dependency>
-
     </dependencies>
 
     <build>
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java
index f4dee67adf03a3474f582dbe662a8c5e988e3fab..7b404c3844c545523f626417879487da13bf69a7 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBDatabaseMetaData.java
@@ -35,12 +35,18 @@ public class TSDBDatabaseMetaData implements java.sql.DatabaseMetaData {
         this.conn = conn;
     }
 
+
+    @Override
     public <T> T unwrap(Class<T> iface) throws SQLException {
-        return null;
+        try {
+            return iface.cast(this);
+        } catch (ClassCastException cce) {
+            throw new SQLException("Unable to unwrap to " + iface.toString());
+        }
     }
 
     public boolean isWrapperFor(Class<?> iface) throws SQLException {
-        return false;
+        return iface.isInstance(this);
     }
 
     public boolean allProceduresAreCallable() throws SQLException {
@@ -80,11 +86,11 @@ public class TSDBDatabaseMetaData implements java.sql.DatabaseMetaData {
     }
 
     public String getDatabaseProductName() throws SQLException {
-        return this.dbProductName;
+        return "TDengine";
     }
 
     public String getDatabaseProductVersion() throws SQLException {
-        return "1.5.1";
+        return "2.0.x.x";
     }
 
     public String getDriverName() throws SQLException {
@@ -92,7 +98,7 @@ public class TSDBDatabaseMetaData implements java.sql.DatabaseMetaData {
     }
 
     public String getDriverVersion() throws SQLException {
-        return "1.0.0";
+        return "2.0.x";
     }
 
     public int getDriverMajorVersion() {