diff --git a/cmake/cmake.install b/cmake/cmake.install
index 27edd8e27a3abd89cfe2cdc23a830292b4428764..d9f759217acb35d2fb9318391aac2f15d3c8b25c 100644
--- a/cmake/cmake.install
+++ b/cmake/cmake.install
@@ -10,7 +10,9 @@ ELSEIF (TD_WINDOWS)
   # INSTALL(DIRECTORY ${TD_SOURCE_DIR}/src/connector/python DESTINATION connector)
   # INSTALL(DIRECTORY ${TD_SOURCE_DIR}/src/connector/C\# DESTINATION connector)
   # INSTALL(DIRECTORY ${TD_SOURCE_DIR}/examples DESTINATION .)
-  INSTALL(FILES ${TD_SOURCE_DIR}/packaging/cfg/taos.cfg DESTINATION cfg)
+  INSTALL(CODE "IF (NOT EXISTS ${CMAKE_INSTALL_PREFIX}/cfg/taos.cfg)
+    execute_process(COMMAND ${CMAKE_COMMAND} -E copy ${TD_SOURCE_DIR}/packaging/cfg/taos.cfg ${CMAKE_INSTALL_PREFIX}/cfg/taos.cfg)
+  ENDIF ()")
   INSTALL(FILES ${TD_SOURCE_DIR}/include/client/taos.h DESTINATION include)
   INSTALL(FILES ${TD_SOURCE_DIR}/include/util/taoserror.h DESTINATION include)
   INSTALL(FILES ${TD_SOURCE_DIR}/include/libs/function/taosudf.h DESTINATION include)
diff --git a/cmake/taostools_CMakeLists.txt.in b/cmake/taostools_CMakeLists.txt.in
index 620faa636b8caef4de240a3a54415eb937658436..9ee0ea526c2697ffba0de90738f92a6d4fdf3efa 100644
--- a/cmake/taostools_CMakeLists.txt.in
+++ b/cmake/taostools_CMakeLists.txt.in
@@ -2,7 +2,7 @@
 # taos-tools
 ExternalProject_Add(taos-tools
         GIT_REPOSITORY https://github.com/taosdata/taos-tools.git
-        GIT_TAG 8a5e336
+        GIT_TAG 3c7dafe
         SOURCE_DIR "${TD_SOURCE_DIR}/tools/taos-tools"
         BINARY_DIR ""
         #BUILD_IN_SOURCE TRUE
diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index b4e8825431475c09fbf925671e6d7f691c700b15..de7b75a24520430d74aca7d1a7506acd2e5d7784 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -27,6 +27,10 @@ else ()
     cat("${TD_SUPPORT_DIR}/taosadapter_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
 endif()
 
+if(TD_LINUX_64 AND JEMALLOC_ENABLED)
+    cat("${TD_SUPPORT_DIR}/jemalloc_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
+endif()
+
 # pthread
 if(${BUILD_PTHREAD})
     cat("${TD_SUPPORT_DIR}/pthread_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
@@ -392,6 +396,19 @@ if(${BUILD_WITH_SQLITE})
     endif(NOT TD_WINDOWS)
 endif(${BUILD_WITH_SQLITE})
 
+# jemalloc
+IF (TD_LINUX_64 AND JEMALLOC_ENABLED)
+    include(ExternalProject)
+    ExternalProject_Add(jemalloc
+        PREFIX        "jemalloc"
+        SOURCE_DIR    ${CMAKE_CURRENT_SOURCE_DIR}/jemalloc
+        BUILD_IN_SOURCE     1
+        CONFIGURE_COMMAND   ./autogen.sh COMMAND ./configure --prefix=${CMAKE_BINARY_DIR}/build/
+        BUILD_COMMAND       ${MAKE}
+        )
+    INCLUDE_DIRECTORIES(${CMAKE_BINARY_DIR}/build/include)
+ENDIF ()
+
 # addr2line
 if(${BUILD_ADDR2LINE})
     if(NOT ${TD_WINDOWS})    
diff --git a/docs/examples/go/connect/afconn/main.go b/docs/examples/go/connect/afconn/main.go
index 3c16212a453eef9482159f5f32c406e07f657ef5..bb2574a01b0f16f75f6ae42ad7b1085a28cb525e 100644
--- a/docs/examples/go/connect/afconn/main.go
+++ b/docs/examples/go/connect/afconn/main.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"log"
 
 	"github.com/taosdata/driver-go/v3/af"
 )
@@ -10,7 +11,7 @@ func main() {
 	conn, err := af.Open("localhost", "root", "taosdata", "", 6030)
 	defer conn.Close()
 	if err != nil {
-		fmt.Println("failed to connect, err:", err)
+		log.Fatalln("failed to connect, err:", err)
 	} else {
 		fmt.Println("connected")
 	}
diff --git a/docs/examples/go/connect/cgoexample/main.go b/docs/examples/go/connect/cgoexample/main.go
index 57b8d5d91f0d8f5e5b3d5890906f388f96fd1126..881cf15ee3098d0582efffcb0cb9168224126c04 100644
--- a/docs/examples/go/connect/cgoexample/main.go
+++ b/docs/examples/go/connect/cgoexample/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"database/sql"
 	"fmt"
+	"log"
 
 	_ "github.com/taosdata/driver-go/v3/taosSql"
 )
@@ -11,7 +12,7 @@ func main() {
 	var taosDSN = "root:taosdata@tcp(localhost:6030)/"
 	taos, err := sql.Open("taosSql", taosDSN)
 	if err != nil {
-		fmt.Println("failed to connect TDengine, err:", err)
+		log.Fatalln("failed to connect TDengine, err:", err)
 		return
 	}
 	fmt.Println("Connected")
diff --git a/docs/examples/go/connect/restexample/main.go b/docs/examples/go/connect/restexample/main.go
index f10151f04fc0b4b213a235be1bef17a8fab49e4c..67a129bf9c6d934a5fee3666d3f180a5efe56fc9 100644
--- a/docs/examples/go/connect/restexample/main.go
+++ b/docs/examples/go/connect/restexample/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"database/sql"
 	"fmt"
+	"log"
 
 	_ "github.com/taosdata/driver-go/v3/taosRestful"
 )
@@ -11,7 +12,7 @@ func main() {
 	var taosDSN = "root:taosdata@http(localhost:6041)/"
 	taos, err := sql.Open("taosRestful", taosDSN)
 	if err != nil {
-		fmt.Println("failed to connect TDengine, err:", err)
+		log.Fatalln("failed to connect TDengine, err:", err)
 		return
 	}
 	fmt.Println("Connected")
diff --git a/docs/examples/go/connect/wrapper/main.go b/docs/examples/go/connect/wrapper/main.go
deleted file mode 100644
index a459539db34ae7e37f619712cd8e142580116d8f..0000000000000000000000000000000000000000
--- a/docs/examples/go/connect/wrapper/main.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package main
-
-import (
-	"fmt"
-
-	"github.com/taosdata/driver-go/v3/wrapper"
-)
-
-func main() {
-	conn, err := wrapper.TaosConnect("localhost", "root", "taosdata", "", 6030)
-	defer wrapper.TaosClose(conn)
-	if err != nil {
-		fmt.Println("fail to connect, err:", err)
-	} else {
-		fmt.Println("connected")
-	}
-}
diff --git a/docs/examples/go/insert/json/main.go b/docs/examples/go/insert/json/main.go
index 805c123342ef6564239d5e7122bb9a7960f5c95e..e470cc6bd463327f9805caaa996e968c29af48a7 100644
--- a/docs/examples/go/insert/json/main.go
+++ b/docs/examples/go/insert/json/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"fmt"
+	"log"
 
 	"github.com/taosdata/driver-go/v3/af"
 )
@@ -20,7 +20,7 @@ func prepareDatabase(conn *af.Connector) {
 func main() {
 	conn, err := af.Open("localhost", "root", "taosdata", "", 6030)
 	if err != nil {
-		fmt.Println("fail to connect, err:", err)
+		log.Fatalln("fail to connect, err:", err)
 	}
 	defer conn.Close()
 	prepareDatabase(conn)
@@ -32,6 +32,6 @@ func main() {
 
 	err = conn.OpenTSDBInsertJsonPayload(payload)
 	if err != nil {
-		fmt.Println("insert error:", err)
+		log.Fatalln("insert error:", err)
 	}
 }
diff --git a/docs/examples/go/insert/line/main.go b/docs/examples/go/insert/line/main.go
index 1a09edc40cc6e600190c781d7df2c1c6f4fad5cf..a270ab2633d1afc41c62d0f6adb74fd879fc9c7d 100644
--- a/docs/examples/go/insert/line/main.go
+++ b/docs/examples/go/insert/line/main.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"fmt"
+	"log"
 
 	"github.com/taosdata/driver-go/v3/af"
 )
@@ -33,6 +34,6 @@ func main() {
 
 	err = conn.InfluxDBInsertLines(lines, "ms")
 	if err != nil {
-		fmt.Println("insert error:", err)
+		log.Fatalln("insert error:", err)
 	}
 }
diff --git a/docs/examples/go/insert/sql/main.go b/docs/examples/go/insert/sql/main.go
index a493ef5fb0a6418b30aa55911a713cf64ce75def..57f881314c87de1e16106ec707106b1159b2b9a0 100644
--- a/docs/examples/go/insert/sql/main.go
+++ b/docs/examples/go/insert/sql/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"database/sql"
 	"fmt"
+	"log"
 
 	_ "github.com/taosdata/driver-go/v3/taosRestful"
 )
@@ -10,28 +11,26 @@ import (
 func createStable(taos *sql.DB) {
 	_, err := taos.Exec("CREATE DATABASE power")
 	if err != nil {
-		fmt.Println("failed to create database, err:", err)
+		log.Fatalln("failed to create database, err:", err)
 	}
 	_, err = taos.Exec("CREATE STABLE power.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)")
 	if err != nil {
-		fmt.Println("failed to create stable, err:", err)
+		log.Fatalln("failed to create stable, err:", err)
 	}
 }
 
 func insertData(taos *sql.DB) {
-	sql := `INSERT INTO power.d1001 USING power.meters TAGS(California.SanFrancisco, 2) VALUES ('2018-10-03 14:38:05.000', 10.30000, 219, 0.31000) ('2018-10-03 14:38:15.000', 12.60000, 218, 0.33000) ('2018-10-03 14:38:16.800', 12.30000, 221, 0.31000)
-	power.d1002 USING power.meters TAGS(California.SanFrancisco, 3) VALUES ('2018-10-03 14:38:16.650', 10.30000, 218, 0.25000)
-	power.d1003 USING power.meters TAGS(California.LosAngeles, 2) VALUES ('2018-10-03 14:38:05.500', 11.80000, 221, 0.28000) ('2018-10-03 14:38:16.600', 13.40000, 223, 0.29000)
-	power.d1004 USING power.meters TAGS(California.LosAngeles, 3) VALUES ('2018-10-03 14:38:05.000', 10.80000, 223, 0.29000) ('2018-10-03 14:38:06.500', 11.50000, 221, 0.35000)`
+	sql := `INSERT INTO power.d1001 USING power.meters TAGS('California.SanFrancisco', 2) VALUES ('2018-10-03 14:38:05.000', 10.30000, 219, 0.31000) ('2018-10-03 14:38:15.000', 12.60000, 218, 0.33000) ('2018-10-03 14:38:16.800', 12.30000, 221, 0.31000)
+	power.d1002 USING power.meters TAGS('California.SanFrancisco', 3) VALUES ('2018-10-03 14:38:16.650', 10.30000, 218, 0.25000)
+	power.d1003 USING power.meters TAGS('California.LosAngeles', 2) VALUES ('2018-10-03 14:38:05.500', 11.80000, 221, 0.28000) ('2018-10-03 14:38:16.600', 13.40000, 223, 0.29000)
+	power.d1004 USING power.meters TAGS('California.LosAngeles', 3) VALUES ('2018-10-03 14:38:05.000', 10.80000, 223, 0.29000) ('2018-10-03 14:38:06.500', 11.50000, 221, 0.35000)`
 	result, err := taos.Exec(sql)
 	if err != nil {
-		fmt.Println("failed to insert, err:", err)
-		return
+		log.Fatalln("failed to insert, err:", err)
 	}
 	rowsAffected, err := result.RowsAffected()
 	if err != nil {
-		fmt.Println("failed to get affected rows, err:", err)
-		return
+		log.Fatalln("failed to get affected rows, err:", err)
 	}
 	fmt.Println("RowsAffected", rowsAffected)
 }
@@ -40,8 +39,7 @@ func main() {
 	var taosDSN = "root:taosdata@http(localhost:6041)/"
 	taos, err := sql.Open("taosRestful", taosDSN)
 	if err != nil {
-		fmt.Println("failed to connect TDengine, err:", err)
-		return
+		log.Fatalln("failed to connect TDengine, err:", err)
 	}
 	defer taos.Close()
 	createStable(taos)
diff --git a/docs/examples/go/insert/stmt/main.go b/docs/examples/go/insert/stmt/main.go
index d23a6e345c6c14f6cfeb8a21a81be296fb19f70e..bcbb8e632bd476a45e869d22d8e818273b214139 100644
--- a/docs/examples/go/insert/stmt/main.go
+++ b/docs/examples/go/insert/stmt/main.go
@@ -5,8 +5,8 @@ import (
 	"time"
 
 	"github.com/taosdata/driver-go/v3/af"
-	"github.com/taosdata/driver-go/v3/af/param"
 	"github.com/taosdata/driver-go/v3/common"
+	"github.com/taosdata/driver-go/v3/common/param"
 )
 
 func checkErr(err error, prompt string) {
diff --git a/docs/examples/go/insert/telnet/main.go b/docs/examples/go/insert/telnet/main.go
index 4cf4375db5be6c4cca53bbcce877bf598ac326e7..63e9a56dbf1c9546199fa91a477303b934c5ac19 100644
--- a/docs/examples/go/insert/telnet/main.go
+++ b/docs/examples/go/insert/telnet/main.go
@@ -1,7 +1,7 @@
 package main
 
 import (
-	"fmt"
+	"log"
 
 	"github.com/taosdata/driver-go/v3/af"
 )
@@ -20,7 +20,7 @@ func prepareDatabase(conn *af.Connector) {
 func main() {
 	conn, err := af.Open("localhost", "root", "taosdata", "", 6030)
 	if err != nil {
-		fmt.Println("fail to connect, err:", err)
+		log.Fatalln("fail to connect, err:", err)
 	}
 	defer conn.Close()
 	prepareDatabase(conn)
@@ -37,6 +37,6 @@ func main() {
 
 	err = conn.OpenTSDBInsertTelnetLines(lines)
 	if err != nil {
-		fmt.Println("insert error:", err)
+		log.Fatalln("insert error:", err)
 	}
 }
diff --git a/docs/examples/go/query/sync/main.go b/docs/examples/go/query/sync/main.go
index add422e3859bee88febef83ad5666550e67adf5b..e37164f47fc0d877c420cea812ec45c124222d93 100644
--- a/docs/examples/go/query/sync/main.go
+++ b/docs/examples/go/query/sync/main.go
@@ -2,7 +2,7 @@ package main
 
 import (
 	"database/sql"
-	"fmt"
+	"log"
 	"time"
 
 	_ "github.com/taosdata/driver-go/v3/taosRestful"
@@ -12,14 +12,12 @@ func main() {
 	var taosDSN = "root:taosdata@http(localhost:6041)/power"
 	taos, err := sql.Open("taosRestful", taosDSN)
 	if err != nil {
-		fmt.Println("failed to connect TDengine, err:", err)
-		return
+		log.Fatalln("failed to connect TDengine, err:", err)
 	}
 	defer taos.Close()
 	rows, err := taos.Query("SELECT ts, current FROM meters LIMIT 2")
 	if err != nil {
-		fmt.Println("failed to select from table, err:", err)
-		return
+		log.Fatalln("failed to select from table, err:", err)
 	}
 
 	defer rows.Close()
@@ -30,9 +28,9 @@ func main() {
 		}
 		err := rows.Scan(&r.ts, &r.current)
 		if err != nil {
-			fmt.Println("scan error:\n", err)
+			log.Fatalln("scan error:\n", err)
 			return
 		}
-		fmt.Println(r.ts, r.current)
+		log.Fatalln(r.ts, r.current)
 	}
 }
diff --git a/docs/examples/node/nativeexample/async_query_example.js b/docs/examples/node/nativeexample/async_query_example.js
index 25b78bc48a82454cc0f9db69b77323a00f3852b4..432d8b8f6c1e89ebe35adac55d4f97376d205cb6 100644
--- a/docs/examples/node/nativeexample/async_query_example.js
+++ b/docs/examples/node/nativeexample/async_query_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 const conn = taos.connect({ host: "localhost", database: "power" });
 const cursor = conn.cursor();
 
@@ -18,4 +18,3 @@ try {
     conn.close();
   }, 2000);
 }
-// bug here: jira 14506
diff --git a/docs/examples/node/nativeexample/connect.js b/docs/examples/node/nativeexample/connect.js
index da791c566e3aa40315b6f35cfeca704040cd8107..bb027d4fe85f35e5a7047b1517caee00314e2153 100644
--- a/docs/examples/node/nativeexample/connect.js
+++ b/docs/examples/node/nativeexample/connect.js
@@ -1,13 +1,20 @@
-const taos = require("td2.0-connector");
+const { options, connect } = require("@tdengine/rest");
 
-var conn = taos.connect({
-  host: "localhost",
-  port: 6030,
-  user: "root",
-  password: "taosdata",
-});
-conn.close();
+async function test() {
+  options.path = "/rest/sql";
+  options.host = "localhost";
+  let conn = connect(options);
+  let cursor = conn.cursor();
+  try {
+    let res = await cursor.query("SELECT server_version()");
+    res.toString();
+  } catch (err) {
+    console.log(err);
+  }
+}
+test();
 
-// run with: node connect.js
 // output:
-// Successfully connected to TDengine
+// server_version() |
+// ===================
+// 3.0.0.0          |
diff --git a/docs/examples/node/nativeexample/influxdb_line_example.js b/docs/examples/node/nativeexample/influxdb_line_example.js
index 2050bee54506a3ee6fe7d89de97b3b41334dd4a6..57170770d8f128b034236b71d8ff7d46f31b3199 100644
--- a/docs/examples/node/nativeexample/influxdb_line_example.js
+++ b/docs/examples/node/nativeexample/influxdb_line_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({
   host: "localhost",
diff --git a/docs/examples/node/nativeexample/insert_example.js b/docs/examples/node/nativeexample/insert_example.js
index ade9d83158362cbf00a856b43a973de31def7601..42050fa251f3da5e5a4a28aed232aef418ff8f7e 100644
--- a/docs/examples/node/nativeexample/insert_example.js
+++ b/docs/examples/node/nativeexample/insert_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({
   host: "localhost",
@@ -11,11 +11,11 @@ try {
   cursor.execute(
     "CREATE STABLE meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)"
   );
-  var sql = `INSERT INTO power.d1001 USING power.meters TAGS(California.SanFrancisco, 2) VALUES ('2018-10-03 14:38:05.000', 10.30000, 219, 0.31000) ('2018-10-03 14:38:15.000', 12.60000, 218, 0.33000) ('2018-10-03 14:38:16.800', 12.30000, 221, 0.31000)
-power.d1002 USING power.meters TAGS(California.SanFrancisco, 3) VALUES ('2018-10-03 14:38:16.650', 10.30000, 218, 0.25000)
-power.d1003 USING power.meters TAGS(California.LosAngeles, 2) VALUES ('2018-10-03 14:38:05.500', 11.80000, 221, 0.28000) ('2018-10-03 14:38:16.600', 13.40000, 223, 0.29000)
-power.d1004 USING power.meters TAGS(California.LosAngeles, 3) VALUES ('2018-10-03 14:38:05.000', 10.80000, 223, 0.29000) ('2018-10-03 14:38:06.500', 11.50000, 221, 0.35000)`;
-  cursor.execute(sql);
+  var sql = `INSERT INTO power.d1001 USING power.meters TAGS('California.SanFrancisco', 2) VALUES ('2018-10-03 14:38:05.000', 10.30000, 219, 0.31000) ('2018-10-03 14:38:15.000', 12.60000, 218, 0.33000) ('2018-10-03 14:38:16.800', 12.30000, 221, 0.31000)
+power.d1002 USING power.meters TAGS('California.SanFrancisco', 3) VALUES ('2018-10-03 14:38:16.650', 10.30000, 218, 0.25000)
+power.d1003 USING power.meters TAGS('California.LosAngeles', 2) VALUES ('2018-10-03 14:38:05.500', 11.80000, 221, 0.28000) ('2018-10-03 14:38:16.600', 13.40000, 223, 0.29000)
+power.d1004 USING power.meters TAGS('California.LosAngeles', 3) VALUES ('2018-10-03 14:38:05.000', 10.80000, 223, 0.29000) ('2018-10-03 14:38:06.500', 11.50000, 221, 0.35000)`;
+  cursor.execute(sql,{'quiet':false});
 } finally {
   cursor.close();
   conn.close();
diff --git a/docs/examples/node/nativeexample/multi_bind_example.js b/docs/examples/node/nativeexample/multi_bind_example.js
index 6ef8b30c097393fef8c6a2837f8683c736b363f1..6cc3993397990af9bb9c01e1b5bf844f8a242201 100644
--- a/docs/examples/node/nativeexample/multi_bind_example.js
+++ b/docs/examples/node/nativeexample/multi_bind_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({
   host: "localhost",
@@ -24,10 +24,10 @@ function insertData() {
   );
 
   // bind table name and tags
-  let tagBind = new taos.TaosBind(2);
-  tagBind.bindBinary("California.SanFrancisco");
-  tagBind.bindInt(2);
-  cursor.stmtSetTbnameTags("d1001", tagBind.getBind());
+  let tagBind = new taos.TaosMultiBindArr(2);
+  tagBind.multiBindBinary(["California.SanFrancisco"]);
+  tagBind.multiBindInt([2]);
+  cursor.stmtSetTbnameTags("d1001", tagBind.getMultiBindArr());
 
   // bind values
   let valueBind = new taos.TaosMultiBindArr(4);
diff --git a/docs/examples/node/nativeexample/opentsdb_json_example.js b/docs/examples/node/nativeexample/opentsdb_json_example.js
index 2d78444a3f805bc77ab5e11925a28dd18fe221fe..4ea36ca68be042bd6c114d44b70f390bf4e503e2 100644
--- a/docs/examples/node/nativeexample/opentsdb_json_example.js
+++ b/docs/examples/node/nativeexample/opentsdb_json_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({
   host: "localhost",
diff --git a/docs/examples/node/nativeexample/opentsdb_telnet_example.js b/docs/examples/node/nativeexample/opentsdb_telnet_example.js
index 7f80f558838e18f07ad79e580e7d08638b74e940..8f5d17822b0feb9da06fbd7f419dbf1d8369e6a0 100644
--- a/docs/examples/node/nativeexample/opentsdb_telnet_example.js
+++ b/docs/examples/node/nativeexample/opentsdb_telnet_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({
   host: "localhost",
diff --git a/docs/examples/node/nativeexample/param_bind_example.js b/docs/examples/node/nativeexample/param_bind_example.js
index c7e04c71a0d19ff8666f3d43fe09109009741266..efe422586fb75734073311d24f03e6c50d18ab28 100644
--- a/docs/examples/node/nativeexample/param_bind_example.js
+++ b/docs/examples/node/nativeexample/param_bind_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({
   host: "localhost",
@@ -23,25 +23,22 @@ function insertData() {
   );
 
   // bind table name and tags
-  let tagBind = new taos.TaosBind(2);
-  tagBind.bindBinary("California.SanFrancisco");
-  tagBind.bindInt(2);
-  cursor.stmtSetTbnameTags("d1001", tagBind.getBind());
+  let tagBind = new taos.TaosMultiBindArr(2);
+  tagBind.multiBindBinary(["California.SanFrancisco"]);
+  tagBind.multiBindInt([2]);
+  cursor.stmtSetTbnameTags("d1001", tagBind.getMultiBindArr());
 
   // bind values
-  let rows = [
-    [1648432611249, 10.3, 219, 0.31],
-    [1648432611749, 12.6, 218, 0.33],
-  ];
-  for (let row of rows) {
-    let valueBind = new taos.TaosBind(4);
-    valueBind.bindTimestamp(row[0]);
-    valueBind.bindFloat(row[1]);
-    valueBind.bindInt(row[2]);
-    valueBind.bindFloat(row[3]);
-    cursor.stmtBindParam(valueBind.getBind());
-    cursor.stmtAddBatch();
-  }
+  let rows = [[1648432611249, 1648432611749], [10.3, 12.6], [219, 218], [0.31, 0.33]];
+
+  let valueBind = new taos.TaosMultiBindArr(4);
+  valueBind.multiBindTimestamp(rows[0]);
+  valueBind.multiBindFloat(rows[1]);
+  valueBind.multiBindInt(rows[2]);
+  valueBind.multiBindFloat(rows[3]);
+  cursor.stmtBindParamBatch(valueBind.getMultiBindArr());
+  cursor.stmtAddBatch();
+
 
   // execute
   cursor.stmtExecute();
diff --git a/docs/examples/node/nativeexample/query_example.js b/docs/examples/node/nativeexample/query_example.js
index a51bc939ae8dc458f019ac3bf006d9320dfdee81..11cfd9a6057eb8d645282a4f0cab945ba46f4a9b 100644
--- a/docs/examples/node/nativeexample/query_example.js
+++ b/docs/examples/node/nativeexample/query_example.js
@@ -1,4 +1,4 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({ host: "localhost", database: "power" });
 const cursor = conn.cursor();
@@ -9,8 +9,6 @@ query.execute().then(function (result) {
 
 // output:
 // Successfully connected to TDengine
-// Query OK, 2 row(s) in set (0.00317767s)
-
 //            ts             |         current          |
 // =======================================================
 // 2018-10-03 14:38:05.000   | 10.3                     |
diff --git a/docs/examples/node/nativeexample/subscribe_demo.js b/docs/examples/node/nativeexample/subscribe_demo.js
index bdf0c98687c359ba20664e869a25690dffbabd29..c4f7e6df84933f8f8541814cabd231fcf5c2db68 100644
--- a/docs/examples/node/nativeexample/subscribe_demo.js
+++ b/docs/examples/node/nativeexample/subscribe_demo.js
@@ -1,4 +1,51 @@
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 
 const conn = taos.connect({ host: "localhost", database: "power" });
-// 未完成
\ No newline at end of file
+var cursor = conn.cursor();
+
+function runConsumer() {
+
+    // create topic 
+    cursor.execute("create topic topic_name_example as select * from meters");
+
+    let consumer = taos.consumer({
+        'group.id': 'tg2',
+        'td.connect.user': 'root',
+        'td.connect.pass': 'taosdata',
+        'msg.with.table.name': 'true',
+        'enable.auto.commit': 'true'
+    });
+    
+    // subscribe the topic just created.
+    consumer.subscribe("topic_name_example");
+
+    // get subscribe topic list
+    let topicList = consumer.subscription();
+    console.log(topicList);
+
+    for (let i = 0; i < 5; i++) {
+        let msg = consumer.consume(100);
+        console.log(msg.topicPartition);
+        console.log(msg.block);
+        console.log(msg.fields)
+        consumer.commit(msg);
+        console.log(`=======consumer ${i} done`)
+    }
+
+    consumer.unsubscribe();
+    consumer.close();
+
+    // drop topic
+    cursor.execute("drop topic topic_name_example");
+}
+
+
+try {
+    runConsumer();
+} finally {
+
+    setTimeout(() => {
+        cursor.close();
+        conn.close();
+    }, 2000);
+}
\ No newline at end of file
diff --git a/docs/examples/node/package.json b/docs/examples/node/package.json
index f56196d2e5011b1c56e59d78d2ce5fdda98205e9..36d3f016b5262472d5c63a2c98cc9704e57a59fe 100644
--- a/docs/examples/node/package.json
+++ b/docs/examples/node/package.json
@@ -4,7 +4,7 @@
   "main": "index.js",
   "license": "MIT",
   "dependencies": {
-    "td2.0-connector": "^2.0.12",
-    "td2.0-rest-connector": "^1.0.0"
+    "@tdengine/client": "^3.0.0",
+    "@tdengine/rest": "^3.0.0"
   }
 }
diff --git a/docs/examples/node/restexample/connect.js b/docs/examples/node/restexample/connect.js
index b84ce2fadf9177983701582b05200986ea9d5ba7..132e284ce9fe6e684a18f1c175256659ae1ebe77 100644
--- a/docs/examples/node/restexample/connect.js
+++ b/docs/examples/node/restexample/connect.js
@@ -1,4 +1,4 @@
-const { options, connect } = require("td2.0-rest-connector");
+const { options, connect } = require("@tdengine/rest");
 
 async function test() {
   options.path = "/rest/sqlt";
@@ -17,4 +17,4 @@ test();
 // output:
 // server_version() |
 // ===================
-// 2.4.0.12         |
+// 3.0.0.0          |
diff --git a/docs/zh/05-get-started/03-package.md b/docs/zh/05-get-started/03-package.md
index 6dbf74f8bcc3442018d259c9781999182fdc579d..1cdfe20c8d8cd5b2d6c39fec68ebf7acabb06266 100644
--- a/docs/zh/05-get-started/03-package.md
+++ b/docs/zh/05-get-started/03-package.md
@@ -11,7 +11,7 @@ import TabItem from "@theme/TabItem";
 
 :::
 
-TDengine 开源版本提供 deb 和 rpm 格式安装包，用户可以根据自己的运行环境选择合适的安装包。其中 deb 支持 Debian/Ubuntu 及衍生系统，rpm 支持 CentOS/RHEL/SUSE 及衍生系统。同时我们也为企业用户提供 tar.gz 格式安装包。
+TDengine 开源版本提供 deb 和 rpm 格式安装包，用户可以根据自己的运行环境选择合适的安装包。其中 deb 支持 Debian/Ubuntu 及衍生系统，rpm 支持 CentOS/RHEL/SUSE 及衍生系统。同时我们也为企业用户提供 tar.gz 格式安装包。也支持通过 `apt-get` 工具从线上进行安装。
 
 ## 安装
 
@@ -293,4 +293,4 @@ taos> select avg(current), max(voltage), min(phase) from test.meters where group
 
 ```sql
 taos> select avg(current), max(voltage), min(phase) from test.d10 interval(10s);
-```
\ No newline at end of file
+```
diff --git a/docs/zh/07-develop/03-insert-data/_go_stmt.mdx b/docs/zh/07-develop/03-insert-data/_go_stmt.mdx
index d65a96549fbef3cd14b47853f765d557447dde1d..db4e227c438180637c0b17850a9a80e96edf91ed 100644
--- a/docs/zh/07-develop/03-insert-data/_go_stmt.mdx
+++ b/docs/zh/07-develop/03-insert-data/_go_stmt.mdx
@@ -3,6 +3,6 @@
 ```
 
 :::tip
-driver-go 的模块 `github.com/taosdata/driver-go/v2/wrapper` 是 C 接口的底层封装。使用这个模块也可以实现参数绑定写入。
+driver-go 的模块 `github.com/taosdata/driver-go/v3/wrapper` 是 C 接口的底层封装。使用这个模块也可以实现参数绑定写入。
 
 :::
diff --git a/docs/zh/07-develop/04-query-data/index.mdx b/docs/zh/07-develop/04-query-data/index.mdx
index 824f36ef2f98aac227bdcaf2016d7be0a2e59328..eecda92744e12934f09ea8c66218f78da9a66146 100644
--- a/docs/zh/07-develop/04-query-data/index.mdx
+++ b/docs/zh/07-develop/04-query-data/index.mdx
@@ -25,6 +25,7 @@ TDengine 采用 SQL 作为查询语言。应用程序可以通过 REST API 或
 - 单列、多列数据查询
 - 标签和数值的多种过滤条件：>, <, =, <\>, like 等
 - 聚合结果的分组（Group by）、排序（Order by）、约束输出（Limit/Offset）
+- 时间窗口（Interval）、会话窗口（Session）和状态窗口（State_window）等窗口切分聚合查询
 - 数值列及聚合结果的四则运算
 - 时间戳对齐的连接查询（Join Query: 隐式连接）操作
 - 多种聚合/计算函数: count, max, min, avg, sum, twa, stddev, leastsquares, top, bottom, first, last, percentile, apercentile, last_row, spread, diff 等
@@ -40,7 +41,7 @@ taos> select * from d1001 where voltage > 215 order by ts desc limit 2;
 Query OK, 2 row(s) in set (0.001100s)
 ```
 
-为满足物联网场景的需求，TDengine 支持几个特殊的函数，比如 twa(时间加权平均)，spread (最大值与最小值的差)，last_row(最后一条记录)等，更多与物联网场景相关的函数将添加进来。TDengine 还支持连续查询。
+为满足物联网场景的需求，TDengine 支持几个特殊的函数，比如 twa(时间加权平均)，spread (最大值与最小值的差)，last_row(最后一条记录)等，更多与物联网场景相关的函数将添加进来。
 
 具体的查询语法请看 [TAOS SQL 的数据查询](/taos-sql/select) 章节。
 
@@ -73,7 +74,7 @@ taos> SELECT count(*), max(current) FROM meters where groupId = 2 and ts > now -
 Query OK, 1 row(s) in set (0.002136s)
 ```
 
-TDengine 仅容许对属于同一个超级表的表之间进行聚合查询，不同超级表之间的聚合查询不支持。在 [TAOS SQL 的数据查询](/taos-sql/select) 一章，查询类操作都会注明是否支持超级表。
+在 [TAOS SQL 的数据查询](/taos-sql/select) 一章，查询类操作都会注明是否支持超级表。
 
 ## 降采样查询、插值
 
diff --git a/docs/zh/07-develop/07-tmq.md b/docs/zh/07-develop/07-tmq.md
index 358c824ffa0330b469938a6cee75cd125ddb25c2..459b88085f9910bca4840192223595a47a0bf2b9 100644
--- a/docs/zh/07-develop/07-tmq.md
+++ b/docs/zh/07-develop/07-tmq.md
@@ -1,14 +1,20 @@
 ---
-sidebar_label: 消息队列
-description: "数据订阅与推送服务。连续写入到 TDengine 中的时序数据能够被自动推送到订阅客户端。"
-title: 消息队列
+sidebar_label: 数据订阅
+description: "数据订阅与推送服务。写入到 TDengine 中的时序数据能够被自动推送到订阅客户端。"
+title: 数据订阅
 ---
 
-基于数据天然的时间序列特性，TDengine 的数据写入（insert）与消息系统的数据发布（pub）逻辑上一致，均可视为系统中插入一条带时间戳的新记录。同时，TDengine 在内部严格按照数据时间序列单调递增的方式保存数据。本质上来说，TDengine 中每一张表均可视为一个标准的消息队列。
+为了帮助应用实时获取写入 TDengine 的数据，或者以事件到达顺序处理数据，TDengine提供了类似消息队列产品的数据订阅、消费接口。这样在很多场景下，采用 TDengine 的时序数据处理系统不再需要集成消息队列产品，比如 kafka, 从而简化系统设计的复杂度，降低运营维护成本。
 
-TDengine 内嵌支持消息订阅与推送服务（下文都简称TMQ）。使用系统提供的 API，用户可使用普通查询语句订阅数据库中的一张或多张表，或整个库。客户端启动订阅后，定时或按需轮询服务器是否有新的记录到达，有新的记录到达就会将结果反馈到客户。
+与 kafka 一样，你需要定义 topic, 但 TDengine 的 topic 是基于一个已经存在的超级表、子表或普通表的查询条件，即一个 SELECT 语句。你可以使用 SQL 对标签、表名、列、表达式等条件进行过滤，以及对数据进行标量函数与 UDF 计算（不包括数据聚合）。与其他消息队列软件相比，这是 TDengine 数据订阅功能的最大的优势，它提供了更大的灵活性，数据的颗粒度可以由应用随时调整，而且数据的过滤与预处理交给 TDengine，而不是应用完成，有效的减少传输的数据量与应用的复杂度。
 
-TMQ提供了提交机制来保证消息队列的可靠性和正确性。在调用方法上，支持自动提交和手动提交。
+消费者订阅 topic 后，可以实时获得最新的数据。多个消费者可以组成一个消费者组 (consumer group), 一个消费者组里的多个消费者共享消费进度，便于多线程、分布式地消费数据，提高消费速度。但不同消费者组中的消费者即使消费同一个topic, 并不共享消费进度。一个消费者可以订阅多个 topic。如果订阅的是超级表，数据可能会分布在多个不同的 vnode 上，也就是多个 shard 上，这样一个消费组里有多个消费者可以提高消费效率。TDengine 的消息队列提供了消息的ACK机制，在宕机、重启等复杂环境下确保 at least once 消费。
+
+为了实现上述功能，TDengine 会为 WAL (Write-Ahead-Log) 文件自动创建索引以支持快速随机访问，并提供了灵活可配置的文件切换与保留机制：用户可以按需指定 WAL 文件保留的时间以及大小（详见 create database 语句）。通过以上方式将 WAL 改造成了一个保留事件到达顺序的、可持久化的存储引擎（但由于 TSDB 具有远比 WAL 更高的压缩率，我们不推荐保留太长时间，一般来说，不超过几天）。 对于以 topic 形式创建的查询，TDengine 将对接 WAL 而不是 TSDB 作为其存储引擎。在消费时，TDengine 根据当前消费进度从 WAL 直接读取数据，并使用统一的查询引擎实现过滤、变换等操作，将数据推送给消费者。
+
+本文档不对消息队列本身的基础知识做介绍，如果需要了解，请自行搜索。
+
+## 主要数据结构和API
 
 TMQ 的 API 中，与订阅相关的主要数据结构和API如下：
 
@@ -47,7 +53,9 @@ DLL_EXPORT void           tmq_conf_set_auto_commit_cb(tmq_conf_t *conf, tmq_comm
 
 这些 API 的文档请见 [C/C++ Connector](/reference/connector/cpp)，下面介绍一下它们的具体用法（超级表和子表结构请参考“数据建模”一节），完整的示例代码可以在 [tmq.c](https://github.com/taosdata/TDengine/blob/3.0/examples/c/tmq.c) 看到。
 
-一、首先完成建库、建一张超级表和多张子表，并每个子表插入若干条数据记录：
+## 写入数据
+
+首先完成建库、建一张超级表和多张子表操作，然后就可以写入数据了，比如：
 
 ```sql
 drop database if exists tmqdb;
@@ -63,14 +71,15 @@ insert into tmqdb.ctb2 values(now, 2, 2, 'a1')(now+1s, 22, 22, 'a22');
 insert into tmqdb.ctb3 values(now, 3, 3, 'a1')(now+1s, 33, 33, 'a33');
 ```
 
-二、创建topic：
+## 创建topic：
 
 ```sql
 create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
 ```
 
-注：TMQ支持多种订阅类型：
-1、列订阅
+TMQ支持多种订阅类型：
+
+### 列订阅
 
 语法：CREATE TOPIC topic_name as subquery
 通过select语句订阅（包括select *，或select ts, c1等指定列描述订阅，可以带条件过滤、标量函数计算，但不支持聚合函数、不支持时间窗口聚合）
@@ -79,25 +88,18 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
 - 被订阅或用于计算的column和tag不可被删除、修改
 - 若发生schema变更，新增的column不出现在结果中
 
-2、超级表订阅
+### 超级表订阅
 语法：CREATE TOPIC topic_name AS STABLE stbName
 
-- 订阅某超级表的全部数据，schema变更不受限，schema变更后写入的数据将以最新schema返回
-- 在tmq的返回消息中schema是块级别的，每块的schema可能不一样
-- 列变更后写入的数据若未落盘，将以写入时的schema返回
-- 列变更后写入的数据若已落盘，将以落盘时的schema返回
-
-3、db订阅
-语法：CREATE TOPIC topic_name AS DATABASE db_name
-
-- 订阅某一db的全部数据，schema变更不受限
-- 在tmq的返回消息中schema是块级别的，每块的schema可能不一样
-- 列变更后写入的数据若未落盘，将以写入时的schema返回
-- 列变更后写入的数据若已落盘，将以落盘时的schema返回
+与select * from stbName订阅的区别是：
+- 不会限制用户的schema变更
+- 返回的是非结构化的数据：返回数据的schema会随之超级表的schema变化而变化
+- 用户对于要处理的每一个数据块都可能有不同的schema，因此，必须重新获取schema
+- 返回数据不带有tag
 
-三、创建consumer
+## 创建 consumer 以及consumer group
 
-目前支持的config：
+对于consumer, 目前支持的config包括：
 
 | 参数名称                     | 参数值                         | 备注                                                   |
 | ---------------------------- | ------------------------------ | ------------------------------------------------------ |
@@ -121,7 +123,7 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
   tmq_conf_set(conf, "group.id", "cgrpName");
   tmq_conf_set(conf, "td.connect.user", "root");
   tmq_conf_set(conf, "td.connect.pass", "taosdata");
-  tmq_conf_set(conf, "auto.offset.reset", "earliest");  
+  tmq_conf_set(conf, "auto.offset.reset", "earliest");
   tmq_conf_set(conf, "experimental.snapshot.enable", "true");
   tmq_conf_set(conf, "msg.with.table.name", "true");
   tmq_conf_set_auto_commit_cb(conf, tmq_commit_cb_print, NULL);
@@ -131,7 +133,12 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
   return tmq;
 ```
 
-四、创建订阅主题列表
+上述配置中包括consumer group ID，如果多个 consumer 指定的 consumer group ID一样，则自动形成一个consumer group，共享消费进度。
+
+
+## 创建 topic 列表
+
+单个consumer支持同时订阅多个topic。
 
 ```sql
   tmq_list_t* topicList = tmq_list_new();
@@ -139,9 +146,7 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
   return topicList;
 ```
 
-单个consumer支持同时订阅多个topic。
-
-五、启动订阅并开始消费
+## 启动订阅并开始消费
 
 ```sql
   /* 启动订阅 */
@@ -151,9 +156,9 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
   /* 循环poll消息 */
   int32_t totalRows = 0;
   int32_t msgCnt = 0;
-  int32_t consumeDelay = 5000;
+  int32_t timeOut = 5000;
   while (running) {
-    TAOS_RES* tmqmsg = tmq_consumer_poll(tmq, consumeDelay);
+    TAOS_RES* tmqmsg = tmq_consumer_poll(tmq, timeOut);
     if (tmqmsg) {
       msgCnt++;
       totalRows += msg_process(tmqmsg);
@@ -190,7 +195,7 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
     int32_t*    length      = taos_fetch_lengths(msg);
     int32_t     precision   = taos_result_precision(msg);
     const char* tbName      = tmq_get_table_name(msg);
-	rows++; 
+    rows++; 
     taos_print_row(buf, row, fields, numOfFields);
     printf("row content from %s: %s\n", (tbName != NULL ? tbName : "null table"), buf);
   }
@@ -199,7 +204,7 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
 }
 ```
 
-五、结束消费
+## 结束消费
 
 ```sql
   /* 取消订阅 */
@@ -209,7 +214,7 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
   tmq_consumer_close(tmq);
 ```
 
-六、删除topic
+## 删除topic
 
 如果不再需要，可以删除创建topic，但注意：只有没有被订阅的topic才能别删除。
 
@@ -218,7 +223,7 @@ create topic topicName as select ts, c1, c2, c3 from tmqdb.stb where c1 > 1;
   drop topic topicName;
 ```
 
-七、状态查看
+## 状态查看
 
 1、topics：查询已经创建的topic
 
diff --git a/docs/zh/14-reference/03-connector/node.mdx b/docs/zh/14-reference/03-connector/node.mdx
index 9f2bed9e97cb33aeabfce3d69dc3774931b426c0..b089da99d26d0d671641fd0b50119853a04000a9 100644
--- a/docs/zh/14-reference/03-connector/node.mdx
+++ b/docs/zh/14-reference/03-connector/node.mdx
@@ -15,11 +15,11 @@ import NodeOpenTSDBTelnet from "../../07-develop/03-insert-data/_js_opts_telnet.
 import NodeOpenTSDBJson from "../../07-develop/03-insert-data/_js_opts_json.mdx";
 import NodeQuery from "../../07-develop/04-query-data/_js.mdx";
 
-`td2.0-connector` 和 `td2.0-rest-connector` 是 TDengine 的官方 Node.js 语言连接器。Node.js 开发人员可以通过它开发可以存取 TDengine 集群数据的应用软件。
+`@tdengine/client` 和 `@tdengine/rest` 是 TDengine 的官方 Node.js 语言连接器。 Node.js 开发人员可以通过它开发可以存取 TDengine 集群数据的应用软件。注意：从 TDengine 3.0 开始 Node.js 原生连接器的包名由 `td2.0-connector` 改名为 `@tdengine/client` 而 rest 连接器的包名由 `td2.0-rest-connector` 改为 `@tdengine/rest`。并且不与 TDengine 2.x 兼容。
 
-`td2.0-connector` 是**原生连接器**，它通过 TDengine 客户端驱动程序（taosc）连接 TDengine 运行实例，支持数据写入、查询、订阅、schemaless 接口和参数绑定接口等功能。`td2.0-rest-connector` 是 **REST 连接器**，它通过 taosAdapter 提供的 REST 接口连接 TDengine 的运行实例。REST 连接器可以在任何平台运行，但性能略为下降，接口实现的功能特性集合和原生接口有少量不同。
+`@tdengine/client` 是**原生连接器**，它通过 TDengine 客户端驱动程序（taosc）连接 TDengine 运行实例，支持数据写入、查询、订阅、schemaless 接口和参数绑定接口等功能。`@tdengine/rest` 是 **REST 连接器**，它通过 taosAdapter 提供的 REST 接口连接 TDengine 的运行实例。REST 连接器可以在任何平台运行，但性能略为下降，接口实现的功能特性集合和原生接口有少量不同。
 
-Node.js 连接器源码托管在 [GitHub](https://github.com/taosdata/taos-connector-node)。
+Node.js 连接器源码托管在 [GitHub](https://github.com/taosdata/taos-connector-node/tree/3.0)。
 
 ## 支持的平台
 
@@ -58,7 +58,7 @@ REST 连接器支持所有能运行 Node.js 的平台。
 <TabItem value="Linux" label="Linux 系统安装依赖工具">
 
 - `python` (建议`v2.7` , `v3.x.x` 目前还不支持)
-- `td2.0-connector` 2.0.6 支持 Node.js LTS v10.9.0 或更高版本, Node.js LTS v12.8.0 或更高版本；2.0.5 及更早版本支持 Node.js LTS v10.x 版本。其他版本可能存在包兼容性的问题
+- `@tdengine/client` 3.0.0 支持 Node.js LTS v10.9.0 或更高版本, Node.js LTS v12.8.0 或更高版本；其他版本可能存在包兼容性的问题
 - `make`
 - C 语言编译器，[GCC](https://gcc.gnu.org) v4.8.5 或更高版本
 
@@ -90,14 +90,14 @@ REST 连接器支持所有能运行 Node.js 的平台。
 <TabItem value="install_native" label="安装原生连接器">
 
 ```bash
-npm install td2.0-connector
+npm install @tdengine/client
 ```
 
 </TabItem>
 <TabItem value="install_rest" label="安装 REST 连接器">
 
 ```bash
-npm i td2.0-rest-connector
+npm install @tdengine/rest
 ```
 
 </TabItem>
@@ -109,13 +109,13 @@ npm i td2.0-rest-connector
 
 验证方法：
 
-- 新建安装验证目录，例如：`~/tdengine-test`，下载 GitHub 上 [nodejsChecker.js 源代码](https://github.com/taosdata/TDengine/tree/develop/examples/nodejs/nodejsChecker.js)到本地。
+- 新建安装验证目录，例如：`~/tdengine-test`，下载 GitHub 上 [nodejsChecker.js 源代码](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/nodejsChecker.js)到本地。
 
 - 在命令行中执行以下命令。
 
 ```bash
 npm init -y
-npm install td2.0-connector
+npm install @tdengine/client
 node nodejsChecker.js host=localhost
 ```
 
@@ -128,11 +128,11 @@ node nodejsChecker.js host=localhost
 <Tabs defaultValue="native">
 <TabItem value="native" label="原生连接">
 
-安装并引用 `td2.0-connector` 包。
+安装并引用 `@tdengine/client` 包。
 
 ```javascript
 //A cursor also needs to be initialized in order to interact with TDengine from Node.js.
-const taos = require("td2.0-connector");
+const taos = require("@tdengine/client");
 var conn = taos.connect({
   host: "127.0.0.1",
   user: "root",
@@ -149,12 +149,12 @@ conn.close();
 </TabItem>
 <TabItem value="rest" label="REST 连接">
 
-安装并引用 `td2.0-rest-connector` 包。
+安装并引用 `@tdengine/rest` 包。
 
 ```javascript
 //A cursor also needs to be initialized in order to interact with TDengine from Node.js.
-import { options, connect } from "td2.0-rest-connector";
-options.path = "/rest/sqlt";
+import { options, connect } from "@tdengine/rest";
+options.path = "/rest/sql";
 // set host
 options.host = "localhost";
 // set other options like user/passwd
@@ -190,26 +190,23 @@ let cursor = conn.cursor();
 
 <NodeQuery />
 
+
 ## 更多示例程序
 
 | 示例程序                                                                                                                                   | 示例程序描述                           |
 | ------------------------------------------------------------------------------------------------------------------------------------------ | -------------------------------------- |
-| [connection](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/cursorClose.js)                                  | 建立连接的示例。                       |
-| [stmtBindBatch](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/stmtBindParamBatchSample.js)                  | 绑定多行参数插入的示例。               |
-| [stmtBind](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/stmtBindParamSample.js)                            | 一行一行绑定参数插入的示例。           |
-| [stmtBindSingleParamBatch](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/stmtBindSingleParamBatchSample.js) | 按列绑定参数插入的示例。               |
-| [stmtUseResult](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/stmtUseResultSample.js)                       | 绑定参数查询的示例。                   |
-| [json tag](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/testJsonTag.js)                                    | Json tag 的使用示例。                  |
-| [Nanosecond](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/testNanoseconds.js)                              | 时间戳为纳秒精度的使用的示例。         |
-| [Microsecond](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/testMicroseconds.js)                            | 时间戳为微秒精度的使用的示例。         |
-| [schemless insert](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/testSchemalessInsert.js)                   | schemless 插入的示例。                 |
-| [subscribe](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/testSubscribe.js)                                 | 订阅的使用示例。                       |
-| [asyncQuery](https://github.com/taosdata/taos-connector-node/tree/develop/nodejs/examples/tset.js)                                         | 异步查询的使用示例。                   |
-| [REST](https://github.com/taosdata/taos-connector-node/blob/develop/typescript-rest/example/example.ts)                                    | 使用 REST 连接的 TypeScript 使用示例。 |
+| [basicUse](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/queryExample.js)                                  | 基本的使用如如建立连接，执行 SQL 等操作。                       |
+| [stmtBindBatch](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/bindParamBatch.js)                  | 绑定多行参数插入的示例。               | |
+| [stmtBindSingleParamBatch](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/bindSingleParamBatch.js) | 按列绑定参数插入的示例。               |
+| [stmtQuery](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/stmtQuery.js)                       | 绑定参数查询的示例。                   |
+| [schemless insert](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/schemaless.js)                   | schemless 插入的示例。                 |
+| [TMQ](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/tmq.js)                                 | 订阅的使用示例。                       |
+| [asyncQuery](https://github.com/taosdata/taos-connector-node/blob/3.0/nodejs/examples/asyncQueryExample.js)                                         | 异步查询的使用示例。                   |
+| [REST](https://github.com/taosdata/taos-connector-node/blob/3.0/typescript-rest/example/example.ts)                                    | 使用 REST 连接的 TypeScript 使用示例。 |
 
 ## 使用限制
 
-Node.js 连接器 >= v2.0.6 目前支持 node 的版本为：支持 >=v12.8.0 <= v12.9.1 || >=v10.20.0 <= v10.9.0 ；2.0.5 及更早版本支持 v10.x 版本，其他版本可能存在包兼容性的问题。
+native 连接器（`@tdengine/client`） >= v3.0.0 目前支持 node 的版本为：支持 >=v12.8.0 <= v12.9.1 || >=v10.20.0 <= v10.9.0 ；2.0.5 及更早版本支持 v10.x 版本，其他版本可能存在包兼容性的问题。
 
 ## 其他说明
 
@@ -225,7 +222,7 @@ Node.js 连接器的使用参见[视频教程](https://www.taosdata.com/blog/202
 
 2. Node.js 版本
 
-  连接器 >v2.0.6 目前兼容的 Node.js 版本为：>=v10.20.0 <= v10.9.0 || >=v12.8.0 <= v12.9.1
+   原生连接器 `@tdengine/client` 目前兼容的 Node.js 版本为：>=v10.20.0 <= v10.9.0 || >=v12.8.0 <= v12.9.1
 
 3. "Unable to establish connection"，"Unable to resolve FQDN"
 
@@ -235,18 +232,22 @@ Node.js 连接器的使用参见[视频教程](https://www.taosdata.com/blog/202
 
 ### 原生连接器
 
-| td2.0-connector 版本 | 说明                                                             |
-| -------------------- | ---------------------------------------------------------------- |
-| 2.0.12               | 修复 cursor.close() 报错的 bug。                                 |
-| 2.0.11               | 支持绑定参数、json tag、schemaless 接口等功能。                  |
-| 2.0.10               | 支持连接管理，普通查询、连续查询、获取系统信息、订阅功能等功能。 |
-
+| package name     | version | TDengine version    | 说明                                                             |
+|------------------|---------|---------------------|------------------------------------------------------------------|
+| @tdengine/client | 3.0.0   | 3.0.0               | 支持TDengine 3.0 且不与2.x 兼容。                                                          |
+| td2.0-connector  | 2.0.12  | 2.4.x；2.5.x；2.6.x | 修复 cursor.close() 报错的 bug。                                 |
+| td2.0-connector  | 2.0.11  | 2.4.x；2.5.x；2.6.x | 支持绑定参数、json tag、schemaless 接口等功能。                  |
+| td2.0-connector  | 2.0.10  | 2.4.x；2.5.x；2.6.x | 支持连接管理，普通查询、连续查询、获取系统信息、订阅功能等功能。 |
 ### REST 连接器
 
-| td2.0-rest-connector 版本 | 说明                                                             |
-| ------------------------- | ---------------------------------------------------------------- |
-| 1.0.3                     | 支持连接管理、普通查询、获取系统信息、错误信息、连续查询等功能。 |
+| package name         | version | TDengine version    | 说明                                                                      |
+|----------------------|---------|---------------------|---------------------------------------------------------------------------|
+| @tdengine/rest       | 3.0.0   | 3.0.0               | 支持 TDegnine 3.0，且不与2.x 兼容。                                               |
+| td2.0-rest-connector | 1.0.7   | 2.4.x；2.5.x；2.6.x | 移除默认端口 6041。                                                       |
+| td2.0-rest-connector | 1.0.6   | 2.4.x；2.5.x；2.6.x | 修复create，insert，update，alter 等SQL 执行返回的 affectRows 错误的bug。 |
+| td2.0-rest-connector | 1.0.5   | 2.4.x；2.5.x；2.6.x | 支持云服务 cloud Token；                                                  |
+| td2.0-rest-connector | 1.0.3   | 2.4.x；2.5.x；2.6.x | 支持连接管理、普通查询、获取系统信息、错误信息、连续查询等功能。          |
 
 ## API 参考
 
-[API 参考](https://docs.taosdata.com/api/td2.0-connector/)
+[API 参考](https://docs.taosdata.com/api/td2.0-connector/)
\ No newline at end of file
diff --git a/docs/zh/14-reference/11-docker/index.md b/docs/zh/14-reference/11-docker/index.md
index d0b7f1420420655909f6ceec5b249d2dad16dd3c..e40f0dbd359c64ba36e841cdfa92841211180837 100644
--- a/docs/zh/14-reference/11-docker/index.md
+++ b/docs/zh/14-reference/11-docker/index.md
@@ -147,7 +147,7 @@ import (
     "fmt"
     "time"
 
-    _ "github.com/taosdata/driver-go/v2/taosSql"
+    _ "github.com/taosdata/driver-go/v3/taosSql"
 )
 
 type config struct {
diff --git a/include/common/tcommon.h b/include/common/tcommon.h
index 7d78c2dc2fe1e514e4b7b31809a4c3688fbaf82b..be18ef1fc0d9516db76067e3fbc3a48c2ea7d581 100644
--- a/include/common/tcommon.h
+++ b/include/common/tcommon.h
@@ -104,6 +104,7 @@ typedef struct SDataBlockInfo {
   uint32_t    capacity;
   // TODO: optimize and remove following
   int64_t     version;  // used for stream, and need serialization
+  int64_t     ts;       // used for stream, and need serialization
   int32_t     childId;  // used for stream, do not serialize
   EStreamType type;     // used for stream, do not serialize
   STimeWindow calWin;   // used for stream, do not serialize
diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 3c3071c8df67ef8ec47dc20792bd90f4016909b1..9e46d4e693e20cd2b3195864dae6666fc41f22bf 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -2657,6 +2657,34 @@ typedef struct {
   SEpSet  epSet;
 } SVgEpSet;
 
+typedef struct {
+  int64_t refId;
+  int64_t suid;
+  int8_t  level;
+} SRSmaFetchMsg;
+
+static FORCE_INLINE int32_t tEncodeSRSmaFetchMsg(SEncoder* pCoder, const SRSmaFetchMsg* pReq) {
+  if (tStartEncode(pCoder) < 0) return -1;
+
+  if (tEncodeI64(pCoder, pReq->refId) < 0) return -1;
+  if (tEncodeI64(pCoder, pReq->suid) < 0) return -1;
+  if (tEncodeI8(pCoder, pReq->level) < 0) return -1;
+
+  tEndEncode(pCoder);
+  return 0;
+}
+
+static FORCE_INLINE int32_t tDecodeSRSmaFetchMsg(SDecoder* pCoder, SRSmaFetchMsg* pReq) {
+  if (tStartDecode(pCoder) < 0) return -1;
+
+  if (tDecodeI64(pCoder, &pReq->refId) < 0) return -1;
+  if (tDecodeI64(pCoder, &pReq->suid) < 0) return -1;
+  if (tDecodeI8(pCoder, &pReq->level) < 0) return -1;
+
+  tEndDecode(pCoder);
+  return 0;
+}
+
 typedef struct {
   int8_t         version;       // for compatibility(default 0)
   int8_t         intervalUnit;  // MACRO: TIME_UNIT_XXX
@@ -3075,7 +3103,7 @@ typedef struct {
   void*   msg;
 } SBatchRsp;
 
-static FORCE_INLINE void tFreeSBatchRsp(void *p) {
+static FORCE_INLINE void tFreeSBatchRsp(void* p) {
   if (NULL == p) {
     return;
   }
diff --git a/include/libs/function/functionMgt.h b/include/libs/function/functionMgt.h
index f6f2ceb9579b3f5f9e5d3355b87d6b17aa0a66bd..479432eebed40d75bdd8e260bd5a44d7d64ded62 100644
--- a/include/libs/function/functionMgt.h
+++ b/include/libs/function/functionMgt.h
@@ -202,6 +202,7 @@ bool fmIsForbidStreamFunc(int32_t funcId);
 bool fmIsIntervalInterpoFunc(int32_t funcId);
 bool fmIsInterpFunc(int32_t funcId);
 bool fmIsLastRowFunc(int32_t funcId);
+bool fmIsNotNullOutputFunc(int32_t funcId);
 bool fmIsSelectValueFunc(int32_t funcId);
 bool fmIsSystemInfoFunc(int32_t funcId);
 bool fmIsImplicitTsFunc(int32_t funcId);
diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 103ca6a4f0e421e65d3664d7894706e3c7476e2b..842e656b9ded148534e1cc488dff53071eb95ae1 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -17,6 +17,7 @@
 #include "os.h"
 #include "query.h"
 #include "tdatablock.h"
+#include "tdbInt.h"
 #include "tmsg.h"
 #include "tmsgcb.h"
 #include "tqueue.h"
@@ -85,6 +86,12 @@ enum {
   TASK_OUTPUT__FETCH,
 };
 
+enum {
+  STREAM_QUEUE__SUCESS = 1,
+  STREAM_QUEUE__FAILED,
+  STREAM_QUEUE__PROCESSING,
+};
+
 typedef struct {
   int8_t type;
 } SStreamQueueItem;
@@ -123,12 +130,6 @@ typedef struct {
   SSDataBlock* pBlock;
 } SStreamTrigger;
 
-enum {
-  STREAM_QUEUE__SUCESS = 1,
-  STREAM_QUEUE__FAILED,
-  STREAM_QUEUE__PROCESSING,
-};
-
 typedef struct {
   STaosQueue* queue;
   STaosQall*  qall;
@@ -233,6 +234,7 @@ typedef struct {
 typedef struct SStreamTask {
   int64_t streamId;
   int32_t taskId;
+  int32_t totalLevel;
   int8_t  taskLevel;
   int8_t  outputType;
   int16_t dispatchMsgType;
@@ -458,13 +460,26 @@ int32_t streamProcessRetrieveRsp(SStreamTask* pTask, SStreamRetrieveRsp* pRsp);
 int32_t streamTryExec(SStreamTask* pTask);
 int32_t streamSchedExec(SStreamTask* pTask);
 
-typedef struct SStreamMeta SStreamMeta;
+typedef int32_t FTaskExpand(void* ahandle, SStreamTask* pTask);
+
+typedef struct SStreamMeta {
+  char*        path;
+  TDB*         db;
+  TTB*         pTaskDb;
+  TTB*         pStateDb;
+  SHashObj*    pTasks;
+  void*        ahandle;
+  TXN          txn;
+  FTaskExpand* expandFunc;
+} SStreamMeta;
 
-SStreamMeta* streamMetaOpen();
+SStreamMeta* streamMetaOpen(const char* path, void* ahandle, FTaskExpand expandFunc);
 void         streamMetaClose(SStreamMeta* streamMeta);
 
-int32_t streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask);
-int32_t streamMetaRemoveTask(SStreamMeta* pMeta, int32_t taskId);
+int32_t      streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask);
+int32_t      streamMetaAddSerializedTask(SStreamMeta* pMeta, char* msg, int32_t msgLen);
+int32_t      streamMetaRemoveTask(SStreamMeta* pMeta, int32_t taskId);
+SStreamTask* streamMetaGetTask(SStreamMeta* pMeta, int32_t taskId);
 
 int32_t streamMetaBegin(SStreamMeta* pMeta);
 int32_t streamMetaCommit(SStreamMeta* pMeta);
diff --git a/include/libs/transport/trpc.h b/include/libs/transport/trpc.h
index 50f995917708204bde3b442832a07f02d7157ab3..467f0a9ff02b14842306d4b5b2e6a201babeff40 100644
--- a/include/libs/transport/trpc.h
+++ b/include/libs/transport/trpc.h
@@ -41,12 +41,13 @@ typedef struct {
 
 typedef struct SRpcHandleInfo {
   // rpc info
-  void    *handle;         // rpc handle returned to app
-  int64_t  refId;          // refid, used by server
-  int32_t  noResp;         // has response or not(default 0, 0: resp, 1: no resp);
-  int32_t  persistHandle;  // persist handle or not
+  void   *handle;         // rpc handle returned to app
+  int64_t refId;          // refid, used by server
+  int8_t  noResp;         // has response or not(default 0, 0: resp, 1: no resp)
+  int8_t  persistHandle;  // persist handle or not
+  int8_t  hasEpSet;
+
   STraceId traceId;
-  int8_t   hasEpSet;
 
   // app info
   void *ahandle;  // app handle set by client
@@ -69,8 +70,9 @@ typedef struct SRpcMsg {
   SRpcHandleInfo info;
 } SRpcMsg;
 
-typedef void (*RpcCfp)(void *parent, SRpcMsg *, SEpSet *rf);
+typedef void (*RpcCfp)(void *parent, SRpcMsg *, SEpSet *epset);
 typedef bool (*RpcRfp)(int32_t code, tmsg_t msgType);
+typedef bool (*RpcTfp)(int32_t code, tmsg_t msgType);
 
 typedef struct SRpcInit {
   char     localFqdn[TSDB_FQDN_LEN];
@@ -84,12 +86,15 @@ typedef struct SRpcInit {
   // the following is for client app ecurity only
   char *user;  // user name
 
-  // call back to process incoming msg, code shall be ignored by server app
+  // call back to process incoming msg
   RpcCfp cfp;
 
-  // user defined retry func
+  // retry not not for particular msg
   RpcRfp rfp;
 
+  // set up timeout for particular msg
+  RpcTfp tfp;
+
   void *parent;
 } SRpcInit;
 
diff --git a/include/os/osDef.h b/include/os/osDef.h
index 14f38eb7ffbe15dbf07ca5e57f6963f1624a7352..be8689398dacc44a262de53c597f8ec103b49923 100644
--- a/include/os/osDef.h
+++ b/include/os/osDef.h
@@ -57,7 +57,7 @@ extern "C" {
 
 #if defined(WINDOWS)
   char *stpcpy (char *dest, const char *src);
-  char *stpncpy (char *dest, const char *src, size_t n);
+  char *stpncpy (char *dest, const char *src, int n);
 
   // specific
 #ifndef __COMPAR_FN_T
@@ -77,7 +77,7 @@ extern "C" {
 
   char *     strsep(char **stringp, const char *delim);
   char *     getpass(const char *prefix);
-  char *     strndup(const char *s, size_t n);
+  char *     strndup(const char *s, int n);
 
   // for send function in tsocket.c
   #define MSG_NOSIGNAL             0
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 97a664d776790a0d3391f99ae213ac6ad74cf90a..27fb057b44371032bda52de7be3f6f35da2ea917 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -46,6 +46,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_RPC_FQDN_ERROR                TAOS_DEF_ERROR_CODE(0, 0x0015)
 #define TSDB_CODE_RPC_PORT_EADDRINUSE           TAOS_DEF_ERROR_CODE(0, 0x0017)
 #define TSDB_CODE_RPC_BROKEN_LINK               TAOS_DEF_ERROR_CODE(0, 0x0018)
+#define TSDB_CODE_RPC_TIMEOUT                   TAOS_DEF_ERROR_CODE(0, 0x0019)
 
 //common & util
 #define TSDB_CODE_TIME_UNSYNCED                 TAOS_DEF_ERROR_CODE(0, 0x0013) 
diff --git a/include/util/tlockfree.h b/include/util/tlockfree.h
index 8db6be88609baff3d95b63410ad694ca833a4418..82dd5a0e8bcdc440b0b44f920f5ede02de7f07f2 100644
--- a/include/util/tlockfree.h
+++ b/include/util/tlockfree.h
@@ -25,9 +25,9 @@ extern "C" {
 // reference counting
 typedef void (*_ref_fn_t)(const void *pObj);
 
-#define T_REF_DECLARE() \
-  struct {              \
-    int32_t val;        \
+#define T_REF_DECLARE()   \
+  struct {                \
+    volatile int32_t val; \
   } _ref;
 
 #define T_REF_REGISTER_FUNC(s, e) \
diff --git a/packaging/release.bat b/packaging/release.bat
index c1cf7875a505852ce3f8c0b78029fedf481aed8f..d58e19cece44dddb8466edeb301a5ed8d636e4c2 100644
--- a/packaging/release.bat
+++ b/packaging/release.bat
@@ -2,61 +2,78 @@
 
 set internal_dir=%~dp0\..\..\
 set community_dir=%~dp0\..
-cd %community_dir%
-git checkout -- .
-cd %community_dir%\packaging
+set package_dir=%cd%
 
 :: %1 name %2 version
 if !%1==! GOTO USAGE
 if !%2==! GOTO USAGE
-if %1 == taos GOTO TAOS
-if %1 == power GOTO POWER
-if %1 == tq GOTO TQ
-if %1 == pro GOTO PRO
-if %1 == kh GOTO KH
-if %1 == jh GOTO JH
-GOTO USAGE
-
-:TAOS
-goto RELEASE
-
-:POWER
-call sed_power.bat %community_dir%
-goto RELEASE
-
-:TQ
-call sed_tq.bat %community_dir%
-goto RELEASE
-
-:PRO
-call sed_pro.bat %community_dir%
-goto RELEASE
-
-:KH
-call sed_kh.bat %community_dir%
-goto RELEASE
-
-:JH
-call sed_jh.bat %community_dir%
-goto RELEASE
-
-:RELEASE
-echo release windows-client-64 for %1, version: %2
-if not exist %internal_dir%\debug\ver-%2-64bit-%1 (
-	md %internal_dir%\debug\ver-%2-64bit-%1
+
+if "%1" == "cluster" (
+	set work_dir=%internal_dir%
+	set packagServerName_x64=TDengine-enterprise-server-%2-beta-Windows-x64
+	set packagServerName_x86=TDengine-enterprise-server-%2-beta-Windows-x86
+	set packagClientName_x64=TDengine-enterprise-client-%2-beta-Windows-x64
+	set packagClientName_x86=TDengine-enterprise-client-%2-beta-Windows-x86
+) else (
+	set work_dir=%community_dir%
+	set packagServerName_x64=TDengine-server-%2-Windows-x64
+	set packagServerName_x86=TDengine-server-%2-Windows-x86
+	set packagClientName_x64=TDengine-client-%2-Windows-x64
+	set packagClientName_x86=TDengine-client-%2-Windows-x86
+)
+
+echo release windows-client for %1, version: %2
+if not exist %work_dir%\debug (
+	md %work_dir%\debug
+)
+if not exist %work_dir%\debug\ver-%2-x64 (
+	md %work_dir%\debug\ver-%2-x64
 ) else (
-	rd /S /Q %internal_dir%\debug\ver-%2-64bit-%1
-	md %internal_dir%\debug\ver-%2-64bit-%1
+	rd /S /Q %work_dir%\debug\ver-%2-x64
+	md %work_dir%\debug\ver-%2-x64
 )
-cd %internal_dir%\debug\ver-%2-64bit-%1
-call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64
-cmake ../../ -G "NMake Makefiles" -DVERNUMBER=%2 -DCPUTYPE=x64
-set CL=/MP4
-nmake install
+if not exist %work_dir%\debug\ver-%2-x86 (
+	md %work_dir%\debug\ver-%2-x86
+) else (
+	rd /S /Q %work_dir%\debug\ver-%2-x86
+	md %work_dir%\debug\ver-%2-x86
+)
+cd %work_dir%\debug\ver-%2-x64
+call vcvarsall.bat x64
+cmake ../../ -G "NMake Makefiles JOM" -DCMAKE_MAKE_PROGRAM=jom -DBUILD_TOOLS=true -DBUILD_HTTP=false -DVERNUMBER=%2 -DCPUTYPE=x64
+cmake --build .
+rd /s /Q C:\TDengine
+cmake --install .
+if not %errorlevel% == 0  ( call :RUNFAILED build x64 failed & exit /b 1)
+cd %package_dir%
+iscc /DMyAppInstallName="%packagServerName_x64%" /DMyAppVersion="%2" /DMyAppExcludeSource="" tools\tdengine.iss /O..\release
+if not %errorlevel% == 0  ( call :RUNFAILED package %packagServerName_x64% failed & exit /b 1)
+iscc /DMyAppInstallName="%packagClientName_x64%" /DMyAppVersion="%2" /DMyAppExcludeSource="taosd.exe" tools\tdengine.iss /O..\release
+if not %errorlevel% == 0  ( call :RUNFAILED package %packagClientName_x64% failed & exit /b 1)
+
+cd %work_dir%\debug\ver-%2-x86
+call vcvarsall.bat x86
+cmake ../../ -G "NMake Makefiles JOM" -DCMAKE_MAKE_PROGRAM=jom -DBUILD_TOOLS=true -DBUILD_HTTP=false -DVERNUMBER=%2 -DCPUTYPE=x86
+cmake --build .
+rd /s /Q C:\TDengine
+cmake --install .
+if not %errorlevel% == 0  ( call :RUNFAILED build x86 failed & exit /b 1)
+cd %package_dir%
+iscc /DMyAppInstallName="%packagServerName_x86%" /DMyAppVersion="%2" /DMyAppExcludeSource="" tools\tdengine.iss /O..\release
+if not %errorlevel% == 0  ( call :RUNFAILED package %packagServerName_x86% failed & exit /b 1)
+iscc /DMyAppInstallName="%packagClientName_x86%" /DMyAppVersion="%2" /DMyAppExcludeSource="taosd.exe" tools\tdengine.iss /O..\release
+if not %errorlevel% == 0  ( call :RUNFAILED package %packagClientName_x86% failed & exit /b 1)
+
 goto EXIT0
 
 :USAGE
-echo Usage: release.bat $productName $version
+echo Usage: release.bat $verMode $version
 goto EXIT0
 
-:EXIT0
\ No newline at end of file
+:EXIT0
+exit /b
+
+:RUNFAILED
+echo %*
+cd %package_dir%
+goto :eof
\ No newline at end of file
diff --git a/packaging/release.sh b/packaging/release.sh
index 3426c2856d03573cb6ed6ec6078c38dfa6371cb0..2452ee18134027aa31ef0963294dc162c6ec82ed 100755
--- a/packaging/release.sh
+++ b/packaging/release.sh
@@ -26,7 +26,7 @@ soMode=dynamic  # [static | dynamic]
 dbName=taos     # [taos | ...]
 allocator=glibc # [glibc | jemalloc]
 verNumber=""
-verNumberComp="2.0.0.0"
+verNumberComp="3.0.0.0"
 httpdBuild=false
 
 while getopts "hv:V:c:o:l:s:d:a:n:m:H:" arg; do
@@ -216,7 +216,7 @@ else
 fi
 
 # check support cpu type
-if [[ "$cpuType" == "x64" ]] || [[ "$cpuType" == "aarch64" ]] || [[ "$cpuType" == "aarch32" ]] || [[ "$cpuType" == "mips64" ]]; then
+if [[ "$cpuType" == "x64" ]] || [[ "$cpuType" == "aarch64" ]] || [[ "$cpuType" == "aarch32" ]] || [[ "$cpuType" == "arm64" ]] || [[ "$cpuType" == "arm32" ]] || [[ "$cpuType" == "mips64" ]]; then
   if [ "$verMode" != "cluster" ]; then
     # community-version compile
     cmake ../ -DCPUTYPE=${cpuType} -DOSTYPE=${osType} -DSOMODE=${soMode} -DDBNAME=${dbName} -DVERTYPE=${verType} -DVERDATE="${build_time}" -DGITINFO=${gitinfo} -DGITINFOI=${gitinfoOfInternal} -DVERNUMBER=${verNumber} -DVERCOMPATIBLE=${verNumberComp} -DPAGMODE=${pagMode} -DBUILD_HTTP=${BUILD_HTTP} -DBUILD_TOOLS=${BUILD_TOOLS} ${allocator_macro}
diff --git a/packaging/tools/favicon.ico b/packaging/tools/favicon.ico
new file mode 100644
index 0000000000000000000000000000000000000000..20b8026d1d2efd6d77b013a1b94cee7aaed11772
Binary files /dev/null and b/packaging/tools/favicon.ico differ
diff --git a/packaging/tools/install.sh b/packaging/tools/install.sh
index 2c3b70f5ed6ed39fd2066638db498415ff7f7dcc..beb0718987a013ea85f570f8dd864b113901b1c6 100755
--- a/packaging/tools/install.sh
+++ b/packaging/tools/install.sh
@@ -30,7 +30,6 @@ configDir="/etc/taos"
 installDir="/usr/local/taos"
 adapterName="taosadapter"
 benchmarkName="taosBenchmark"
-tmqName="tmq_sim"
 dumpName="taosdump"
 demoName="taosdemo"
 
diff --git a/packaging/tools/makepkg.sh b/packaging/tools/makepkg.sh
index a3f4c3584261582215de088bb9aef0fc24ee0fb7..6103ce170ce646665ed0d97ef85dad46b2473ed6 100755
--- a/packaging/tools/makepkg.sh
+++ b/packaging/tools/makepkg.sh
@@ -60,7 +60,7 @@ if [ "$pagMode" == "lite" ]; then
   strip ${build_dir}/bin/${serverName}
   strip ${build_dir}/bin/${clientName}
   # lite version doesn't include taosadapter,  which will lead to no restful interface
-  bin_files="${build_dir}/bin/${serverName} ${build_dir}/bin/${clientName} ${script_dir}/remove.sh ${script_dir}/startPre.sh ${build_dir}/bin/taosBenchmark  ${build_dir}/bin/tmq_sim"
+  bin_files="${build_dir}/bin/${serverName} ${build_dir}/bin/${clientName} ${script_dir}/remove.sh ${script_dir}/startPre.sh ${build_dir}/bin/taosBenchmark "
   taostools_bin_files=""
 else
 
@@ -78,7 +78,6 @@ else
 
   taostools_bin_files=" ${build_dir}/bin/taosdump \
       ${build_dir}/bin/taosBenchmark \
-      ${build_dir}/bin/tmq_sim \
       ${build_dir}/bin/TDinsight.sh \
       $tdinsight_caches"
 
diff --git a/packaging/tools/taos.bat b/packaging/tools/taos.bat
new file mode 100644
index 0000000000000000000000000000000000000000..c3fe625e16f295d78fc3ffcb3c3af2e36d9d8839
--- /dev/null
+++ b/packaging/tools/taos.bat
@@ -0,0 +1,6 @@
+@echo off
+cd C:\TDengine
+if not "%1" == "" (
+    %1 --help 
+    @cmd /k
+)
\ No newline at end of file
diff --git a/packaging/tools/tdengine.iss b/packaging/tools/tdengine.iss
new file mode 100644
index 0000000000000000000000000000000000000000..73102018159b3d37dca8531cadc2a388a2843651
--- /dev/null
+++ b/packaging/tools/tdengine.iss
@@ -0,0 +1,81 @@
+#define MyAppName "TDengine"
+#define MyAppPublisher "taosdata"
+#define MyAppURL "http://www.taosdata.com/"
+#define MyAppBeforeInstallTxt "windows_before_install.txt"
+#define MyAppIco "favicon.ico"
+#define MyAppInstallDir "C:\TDengine"
+#define MyAppOutputDir "./"
+#define MyAppSourceDir "C:\TDengine"
+;#define MyAppAllFile "\*"
+#define MyAppCfgName "\cfg\*"
+#define MyAppDriverName "\driver\*"
+#define MyAppConnectorName "\connector\*"
+#define MyAppExamplesName "\examples\*"
+#define MyAppIncludeName "\include\*"
+#define MyAppExeName "\*.exe"
+#define MyAppTaosExeName "\taos.bat"
+#define MyAppTaosdemoExeName "\taosBenchmark.exe"
+#define MyAppDLLName "\driver\taos.dll"
+;#define MyAppVersion "3.0"
+;#define MyAppInstallName "TDengine"
+
+[Setup]
+VersionInfoVersion={#MyAppVersion}
+AppId={{A0F7A93C-79C4-485D-B2B8-F0D03DF42FAB}
+AppName={#MyAppName}
+AppVersion={#MyAppVersion}
+;AppVerName={#MyAppName} {#MyAppVersion}
+AppPublisher={#MyAppPublisher}
+AppPublisherURL={#MyAppURL}
+AppSupportURL={#MyAppURL}
+AppUpdatesURL={#MyAppURL}
+DefaultDirName={#MyAppInstallDir}
+DefaultGroupName={#MyAppName}
+DisableProgramGroupPage=yes
+InfoBeforeFile={#MyAppBeforeInstallTxt}
+OutputDir={#MyAppOutputDir}
+OutputBaseFilename={#MyAppInstallName}
+SetupIconFile={#MyAppIco}
+Compression=lzma
+SolidCompression=yes
+DisableDirPage=yes
+Uninstallable=yes
+
+[Languages]
+Name: "chinesesimp"; MessagesFile: "compiler:Default.isl"
+;Name: "english"; MessagesFile: "compiler:Languages\English.isl"
+
+[Files]
+;Source: {#MyAppSourceDir}{#MyAppAllFile}; DestDir: "{app}"; Flags: igNoreversion recursesubdirs createallsubdirs 
+Source: taos.bat; DestDir: "{app}\include"; Flags: igNoreversion;
+;Source: taosdemo.png; DestDir: "{app}\include"; Flags: igNoreversion;
+;Source: taosShell.png; DestDir: "{app}\include"; Flags: igNoreversion;
+Source: favicon.ico; DestDir: "{app}\include"; Flags: igNoreversion;
+Source: {#MyAppSourceDir}{#MyAppDLLName}; DestDir: "{win}\System32"; Flags: igNoreversion;
+Source: {#MyAppSourceDir}{#MyAppCfgName}; DestDir: "{app}\cfg"; Flags: igNoreversion recursesubdirs createallsubdirs onlyifdoesntexist uninsneveruninstall
+Source: {#MyAppSourceDir}{#MyAppDriverName}; DestDir: "{app}\driver"; Flags: igNoreversion recursesubdirs createallsubdirs
+;Source: {#MyAppSourceDir}{#MyAppConnectorName}; DestDir: "{app}\connector"; Flags: igNoreversion recursesubdirs createallsubdirs
+;Source: {#MyAppSourceDir}{#MyAppExamplesName}; DestDir: "{app}\examples"; Flags: igNoreversion recursesubdirs createallsubdirs
+Source: {#MyAppSourceDir}{#MyAppIncludeName}; DestDir: "{app}\include"; Flags: igNoreversion recursesubdirs createallsubdirs
+Source: {#MyAppSourceDir}{#MyAppExeName}; DestDir: "{app}"; Excludes: {#MyAppExcludeSource} ; Flags: igNoreversion recursesubdirs createallsubdirs
+Source: {#MyAppSourceDir}{#MyAppTaosdemoExeName}; DestDir: "{app}"; Flags: igNoreversion recursesubdirs createallsubdirs
+
+[UninstallDelete]
+Name: {app}\driver; Type: filesandordirs 
+Name: {app}\connector; Type: filesandordirs
+Name: {app}\examples; Type: filesandordirs
+Name: {app}\include; Type: filesandordirs
+
+[Tasks]
+Name: "desktopicon";Description: "{cm:CreateDesktopIcon}"; GroupDescription:"{cm:AdditionalIcons}"; Flags: checkablealone
+
+[Icons]
+Name:"{group}\Taos Shell"; Filename: "{app}\include\{#MyAppTaosExeName}" ; Parameters: "taos.exe" ; IconFilename: "{app}\include\{#MyAppIco}" 
+Name:"{group}\Open TDengine Directory"; Filename: "{app}\" 
+Name:"{group}\Taosdemo"; Filename: "{app}\include\{#MyAppTaosExeName}" ; Parameters: "taosdemo.exe" ; IconFilename: "{app}\include\{#MyAppIco}" 
+Name: "{group}\{cm:UninstallProgram,{#MyAppName}}"; Filename: "{uninstallexe}" ; IconFilename: "{app}\include\{#MyAppIco}" 
+Name:"{commondesktop}\Taos Shell"; Filename: "{app}\include\{#MyAppTaosExeName}" ; Parameters: "taos.exe" ; Tasks: desktopicon; WorkingDir: "{app}" ; IconFilename: "{app}\include\{#MyAppIco}" 
+
+
+[Messages]
+ConfirmUninstall=Do you really want to uninstall TDengine from your computer?%n%nPress [Y] to completely delete %1 and all its components;%nPress [N] to keep the software on your computer.
diff --git a/packaging/tools/windows_before_install.txt b/packaging/tools/windows_before_install.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b793a3e8014493b374c3b7bd79d7f535ca14f555
--- /dev/null
+++ b/packaging/tools/windows_before_install.txt
@@ -0,0 +1,3 @@
+TDengine is a high-efficient, scalable, high-available distributed time-series database, which makes a lot of optimizations on inserting and querying data, which is far more efficient than normal regular databases. So TDengine can meet the high requirements of IOT and other areas on storing and querying a large amount of data. 
+
+TDengine will be installed under C:\TDengine, users can modify configuration file C:\TDengine\cfg\taos.cfg, set the log file path or other parameters.
\ No newline at end of file
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index d88a587f6ae49954c5e8213f2e3f4d765b32ea34..812351e2080cc031e996e415bc1c3690db11abd2 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -60,7 +60,7 @@ static int32_t registerRequest(SRequestObj *pRequest, STscObj *pTscObj) {
 }
 
 static void deregisterRequest(SRequestObj *pRequest) {
-  const static int64_t SLOW_QUERY_INTERVAL = 3000000L; // todo configurable
+  const static int64_t SLOW_QUERY_INTERVAL = 3000000L;  // todo configurable
   assert(pRequest != NULL);
 
   STscObj            *pTscObj = pRequest->pTscObj;
@@ -77,13 +77,13 @@ static void deregisterRequest(SRequestObj *pRequest) {
   if (QUERY_NODE_VNODE_MODIF_STMT == pRequest->stmtType) {
     atomic_add_fetch_64((int64_t *)&pActivity->insertElapsedTime, duration);
   } else if (QUERY_NODE_SELECT_STMT == pRequest->stmtType) {
-    atomic_add_fetch_64((int64_t *)&pActivity->queryElapsedTime, duration);           
+    atomic_add_fetch_64((int64_t *)&pActivity->queryElapsedTime, duration);
   }
-  
+
   if (duration >= SLOW_QUERY_INTERVAL) {
     atomic_add_fetch_64((int64_t *)&pActivity->numOfSlowQueries, 1);
   }
-  
+
   releaseTscObj(pTscObj->id);
 }
 
@@ -109,6 +109,14 @@ static bool clientRpcRfp(int32_t code, tmsg_t msgType) {
   }
 }
 
+// start timer for particular msgType
+static bool clientRpcTfp(int32_t code, tmsg_t msgType) {
+  if (msgType == TDMT_VND_SUBMIT || msgType == TDMT_VND_CREATE_TABLE) {
+    return true;
+  }
+  return false;
+}
+
 // TODO refactor
 void *openTransporter(const char *user, const char *auth, int32_t numOfThread) {
   SRpcInit rpcInit;
@@ -118,6 +126,7 @@ void *openTransporter(const char *user, const char *auth, int32_t numOfThread) {
   rpcInit.numOfThreads = numOfThread;
   rpcInit.cfp = processMsgFromServer;
   rpcInit.rfp = clientRpcRfp;
+  rpcInit.tfp = clientRpcTfp;
   rpcInit.sessions = 1024;
   rpcInit.connType = TAOS_CONN_CLIENT;
   rpcInit.user = (char *)user;
@@ -375,7 +384,7 @@ void taos_init_imp(void) {
   initQueryModuleMsgHandle();
 
   taosConvInit();
-  
+
   rpcInit();
 
   SCatalogCfg cfg = {.maxDBCacheNum = 100, .maxTblCacheNum = 100};
diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index 06bd3f388741edd21e69dc5f1128937f1739feea..7031a1ebcab1adcb146f4b4b6c2e63ea8fcbf8f2 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -286,6 +286,7 @@ static int32_t hbAsyncCallBack(void *param, SDataBuf *pMsg, int32_t code) {
   if (pInst == NULL || NULL == *pInst) {
     taosThreadMutexUnlock(&appInfo.mutex);
     tscError("cluster not exist, key:%s", key);
+    taosMemoryFree(pMsg->pData);
     tFreeClientHbBatchRsp(&pRsp);
     return -1;
   }
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index f7d45dc6ff965bfa18693a5a1f21855c3540516a..30b0820713dfc438164b9ab666af9ab7d30e96e6 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -1007,7 +1007,7 @@ int32_t tmqPollCb(void* param, SDataBuf* pMsg, int32_t code) {
   taosMemoryFree(pParam);
   if (code != 0) {
     tscWarn("msg discard from vgId:%d, epoch %d, code:%x", vgId, epoch, code);
-    if (pMsg->pData) taosMemoryFree(pMsg->pData);
+    if (pMsg->pData) taosMemoryFreeClear(pMsg->pData);
     if (code == TSDB_CODE_TQ_NO_COMMITTED_OFFSET) {
       SMqPollRspWrapper* pRspWrapper = taosAllocateQitem(sizeof(SMqPollRspWrapper), DEF_QITEM);
       if (pRspWrapper == NULL) {
@@ -1699,7 +1699,8 @@ int32_t tmq_consumer_close(tmq_t* tmq) {
 
     tmq_list_destroy(lst);
 
-    return rsp;
+    /*return rsp;*/
+    return 0;
   }
   // TODO: free resources
   return 0;
diff --git a/source/common/src/systable.c b/source/common/src/systable.c
index 675d3bbfdd6bb51e5ec7bc430acd4c996df2cde9..11faaaad97cbf00d042fa736775df713be6f93f8 100644
--- a/source/common/src/systable.c
+++ b/source/common/src/systable.c
@@ -16,15 +16,15 @@
 #include "systable.h"
 #include "taos.h"
 #include "tdef.h"
-#include "types.h"
 #include "tgrant.h"
+#include "types.h"
 
 #define SYSTABLE_SCH_TABLE_NAME_LEN ((TSDB_TABLE_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
 #define SYSTABLE_SCH_DB_NAME_LEN    ((TSDB_DB_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
 #define SYSTABLE_SCH_COL_NAME_LEN   ((TSDB_COL_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
 
 static const SSysDbTableSchema dnodesSchema[] = {
-    {.name = "id", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
+    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_SMALLINT},
     {.name = "endpoint", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
     {.name = "vnodes", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
     {.name = "support_vnodes", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
@@ -66,7 +66,7 @@ static const SSysDbTableSchema bnodesSchema[] = {
 };
 
 static const SSysDbTableSchema clusterSchema[] = {
-    {.name = "id", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
+    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_BIGINT},
     {.name = "name", .bytes = TSDB_CLUSTER_ID_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
     {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
 };
@@ -97,7 +97,7 @@ static const SSysDbTableSchema userDBSchema[] = {
     {.name = "wal_retention_period", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
     {.name = "wal_retention_size", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
     {.name = "wal_roll_period", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "wal_seg_size", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
+    {.name = "wal_segment_size", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
 };
 
 static const SSysDbTableSchema userFuncSchema[] = {
@@ -243,8 +243,8 @@ static const SSysTableMeta infosMeta[] = {
     {TSDB_INS_TABLE_MNODES, mnodesSchema, tListLen(mnodesSchema)},
     {TSDB_INS_TABLE_MODULES, modulesSchema, tListLen(modulesSchema)},
     {TSDB_INS_TABLE_QNODES, qnodesSchema, tListLen(qnodesSchema)},
-//    {TSDB_INS_TABLE_SNODES, snodesSchema, tListLen(snodesSchema)},
-//    {TSDB_INS_TABLE_BNODES, bnodesSchema, tListLen(bnodesSchema)},
+    //    {TSDB_INS_TABLE_SNODES, snodesSchema, tListLen(snodesSchema)},
+    //    {TSDB_INS_TABLE_BNODES, bnodesSchema, tListLen(bnodesSchema)},
     {TSDB_INS_TABLE_CLUSTER, clusterSchema, tListLen(clusterSchema)},
     {TSDB_INS_TABLE_DATABASES, userDBSchema, tListLen(userDBSchema)},
     {TSDB_INS_TABLE_FUNCTIONS, userFuncSchema, tListLen(userFuncSchema)},
@@ -354,11 +354,19 @@ static const SSysTableMeta perfsMeta[] = {
     {TSDB_PERFS_TABLE_APPS, appSchema, tListLen(appSchema)}};
 
 void getInfosDbMeta(const SSysTableMeta** pInfosTableMeta, size_t* size) {
-  *pInfosTableMeta = infosMeta;
-  *size = tListLen(infosMeta);
+  if (pInfosTableMeta) {
+    *pInfosTableMeta = infosMeta;
+  }
+  if (size) {
+    *size = tListLen(infosMeta);
+  }
 }
 
 void getPerfDbMeta(const SSysTableMeta** pPerfsTableMeta, size_t* size) {
-  *pPerfsTableMeta = perfsMeta;
-  *size = tListLen(perfsMeta);
+  if (pPerfsTableMeta) {
+    *pPerfsTableMeta = perfsMeta;
+  }
+  if (size) {
+    *size = tListLen(perfsMeta);
+  }
 }
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index f836cd76acb25e4aa93e7e47bcc4176ddf9788ca..a0f02d96f91913bbe127b992052ecd03a2008b61 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -401,7 +401,8 @@ static int32_t taosAddServerCfg(SConfig *pCfg) {
   tsNumOfVnodeWriteThreads = TMAX(tsNumOfVnodeWriteThreads, 1);
   if (cfgAddInt32(pCfg, "numOfVnodeWriteThreads", tsNumOfVnodeWriteThreads, 1, 1024, 0) != 0) return -1;
 
-  tsNumOfVnodeSyncThreads = tsNumOfCores;
+  // tsNumOfVnodeSyncThreads = tsNumOfCores;
+  tsNumOfVnodeSyncThreads = 32;
   tsNumOfVnodeSyncThreads = TMAX(tsNumOfVnodeSyncThreads, 1);
   if (cfgAddInt32(pCfg, "numOfVnodeSyncThreads", tsNumOfVnodeSyncThreads, 1, 1024, 0) != 0) return -1;
 
diff --git a/source/dnode/mnode/impl/inc/mndDef.h b/source/dnode/mnode/impl/inc/mndDef.h
index 06c64dcea6aed0cf0b563e858df110a6b4be8266..c4da9b5c3d5a282c7b80136fdf8421edb53edf9e 100644
--- a/source/dnode/mnode/impl/inc/mndDef.h
+++ b/source/dnode/mnode/impl/inc/mndDef.h
@@ -604,11 +604,11 @@ typedef struct {
   int64_t createTime;
   int64_t updateTime;
   int32_t version;
+  int32_t totalLevel;
   int64_t smaId;  // 0 for unused
   // info
   int64_t uid;
   int8_t  status;
-  int8_t  isDistributed;
   // config
   int8_t  igExpired;
   int8_t  trigger;
@@ -647,7 +647,6 @@ typedef struct {
 typedef struct {
   int64_t uid;
   int64_t streamId;
-  int8_t  isDistributed;
   int8_t  status;
   int8_t  stage;
 } SStreamRecoverObj;
diff --git a/source/dnode/mnode/impl/src/mndDb.c b/source/dnode/mnode/impl/src/mndDb.c
index 0120e1146d99dab97946445b9b28f425e56a4090..66f81a3dba4945ce06490f432ebe509f483cbd29 100644
--- a/source/dnode/mnode/impl/src/mndDb.c
+++ b/source/dnode/mnode/impl/src/mndDb.c
@@ -1691,13 +1691,17 @@ static int32_t mndRetrieveDbs(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBloc
   if (!pShow->sysDbRsp) {
     SDbObj infoschemaDb = {0};
     setInformationSchemaDbCfg(&infoschemaDb);
-    dumpDbInfoData(pBlock, &infoschemaDb, pShow, numOfRows, 14, true, 0, 1);
+    size_t numOfTables = 0;
+    getInfosDbMeta(NULL, &numOfTables);
+    dumpDbInfoData(pBlock, &infoschemaDb, pShow, numOfRows, numOfTables, true, 0, 1);
 
     numOfRows += 1;
 
     SDbObj perfschemaDb = {0};
     setPerfSchemaDbCfg(&perfschemaDb);
-    dumpDbInfoData(pBlock, &perfschemaDb, pShow, numOfRows, 3, true, 0, 1);
+    numOfTables = 0;
+    getPerfDbMeta(NULL, &numOfTables);
+    dumpDbInfoData(pBlock, &perfschemaDb, pShow, numOfRows, numOfTables, true, 0, 1);
 
     numOfRows += 1;
     pShow->sysDbRsp = true;
diff --git a/source/dnode/mnode/impl/src/mndDef.c b/source/dnode/mnode/impl/src/mndDef.c
index abac0573da0eea96a047b5163d3aedc09858d153..08ce161409037316478b083750187fd10a7f8b9e 100644
--- a/source/dnode/mnode/impl/src/mndDef.c
+++ b/source/dnode/mnode/impl/src/mndDef.c
@@ -23,11 +23,11 @@ int32_t tEncodeSStreamObj(SEncoder *pEncoder, const SStreamObj *pObj) {
   if (tEncodeI64(pEncoder, pObj->createTime) < 0) return -1;
   if (tEncodeI64(pEncoder, pObj->updateTime) < 0) return -1;
   if (tEncodeI32(pEncoder, pObj->version) < 0) return -1;
+  if (tEncodeI32(pEncoder, pObj->totalLevel) < 0) return -1;
   if (tEncodeI64(pEncoder, pObj->smaId) < 0) return -1;
 
   if (tEncodeI64(pEncoder, pObj->uid) < 0) return -1;
   if (tEncodeI8(pEncoder, pObj->status) < 0) return -1;
-  if (tEncodeI8(pEncoder, pObj->isDistributed) < 0) return -1;
 
   if (tEncodeI8(pEncoder, pObj->igExpired) < 0) return -1;
   if (tEncodeI8(pEncoder, pObj->trigger) < 0) return -1;
@@ -69,11 +69,11 @@ int32_t tDecodeSStreamObj(SDecoder *pDecoder, SStreamObj *pObj) {
   if (tDecodeI64(pDecoder, &pObj->createTime) < 0) return -1;
   if (tDecodeI64(pDecoder, &pObj->updateTime) < 0) return -1;
   if (tDecodeI32(pDecoder, &pObj->version) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pObj->totalLevel) < 0) return -1;
   if (tDecodeI64(pDecoder, &pObj->smaId) < 0) return -1;
 
   if (tDecodeI64(pDecoder, &pObj->uid) < 0) return -1;
   if (tDecodeI8(pDecoder, &pObj->status) < 0) return -1;
-  if (tDecodeI8(pDecoder, &pObj->isDistributed) < 0) return -1;
 
   if (tDecodeI8(pDecoder, &pObj->igExpired) < 0) return -1;
   if (tDecodeI8(pDecoder, &pObj->trigger) < 0) return -1;
diff --git a/source/dnode/mnode/impl/src/mndScheduler.c b/source/dnode/mnode/impl/src/mndScheduler.c
index 218f82df180caf2b7d6628b97b1d8172fa9bbcef..a24b7ef4597ceb1d5aba35efe907e9a7e12cb0a8 100644
--- a/source/dnode/mnode/impl/src/mndScheduler.c
+++ b/source/dnode/mnode/impl/src/mndScheduler.c
@@ -307,10 +307,9 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
     terrno = TSDB_CODE_QRY_INVALID_INPUT;
     return -1;
   }
-  int32_t totLevel = LIST_LENGTH(pPlan->pSubplans);
-  ASSERT(totLevel <= 2);
-  pStream->tasks = taosArrayInit(totLevel, sizeof(void*));
-  pStream->isDistributed = totLevel == 2;
+  int32_t planTotLevel = LIST_LENGTH(pPlan->pSubplans);
+  ASSERT(planTotLevel <= 2);
+  pStream->tasks = taosArrayInit(planTotLevel, sizeof(void*));
 
   bool    hasExtraSink = false;
   bool    externalTargetDB = strcmp(pStream->sourceDb, pStream->targetDb) != 0;
@@ -320,7 +319,7 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
 
   bool multiTarget = pDbObj->cfg.numOfVgroups > 1;
 
-  if (totLevel == 2 || externalTargetDB || multiTarget) {
+  if (planTotLevel == 2 || externalTargetDB || multiTarget) {
     /*if (true) {*/
     SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
     taosArrayPush(pStream->tasks, &taskOneLevel);
@@ -338,8 +337,9 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
       }
     }
   }
+  pStream->totalLevel = planTotLevel + hasExtraSink;
 
-  if (totLevel > 1) {
+  if (planTotLevel > 1) {
     SStreamTask* pInnerTask;
     // inner level
     {
@@ -371,13 +371,6 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
         return -1;
       }
 
-#if 0
-      SDbObj* pSourceDb = mndAcquireDb(pMnode, pStream->sourceDb);
-      ASSERT(pDbObj != NULL);
-      sdbRelease(pSdb, pSourceDb);
-      pInnerTask->numOfVgroups = pSourceDb->cfg.numOfVgroups;
-#endif
-
       if (tsSchedStreamToSnode) {
         SSnodeObj* pSnode = mndSchedFetchOneSnode(pMnode);
         if (pSnode == NULL) {
@@ -464,7 +457,7 @@ int32_t mndScheduleStream(SMnode* pMnode, SStreamObj* pStream) {
     }
   }
 
-  if (totLevel == 1) {
+  if (planTotLevel == 1) {
     SArray* taskOneLevel = taosArrayInit(0, sizeof(void*));
     taosArrayPush(pStream->tasks, &taskOneLevel);
 
diff --git a/source/dnode/mnode/impl/src/mndSma.c b/source/dnode/mnode/impl/src/mndSma.c
index 6411d06081539007d2cc275ca4a67d9cfcd184fb..006d9e749cfd273f4f112e84e435d495f29125b1 100644
--- a/source/dnode/mnode/impl/src/mndSma.c
+++ b/source/dnode/mnode/impl/src/mndSma.c
@@ -489,7 +489,7 @@ static int32_t mndCreateSma(SMnode *pMnode, SRpcMsg *pReq, SMCreateSmaReq *pCrea
   smaObj.uid = mndGenerateUid(pCreate->name, TSDB_TABLE_FNAME_LEN);
   ASSERT(smaObj.uid != 0);
   char resultTbName[TSDB_TABLE_FNAME_LEN + 16] = {0};
-  snprintf(resultTbName, TSDB_TABLE_FNAME_LEN + 16, "td.tsma.rst.tb.%s", pCreate->name);
+  snprintf(resultTbName, TSDB_TABLE_FNAME_LEN + 16, "%s_td_tsma_rst_tb",pCreate->name);
   memcpy(smaObj.dstTbName, resultTbName, TSDB_TABLE_FNAME_LEN);
   smaObj.dstTbUid = mndGenerateUid(smaObj.dstTbName, TSDB_TABLE_FNAME_LEN);
   smaObj.stbUid = pStb->uid;
@@ -603,6 +603,9 @@ static int32_t mndCreateSma(SMnode *pMnode, SRpcMsg *pReq, SMCreateSmaReq *pCrea
   if (mndPersistStream(pMnode, pTrans, &streamObj) != 0) goto _OVER;
   if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
 
+  mDebug("mndSma: create sma index %s %" PRIi64 " on stb:%" PRIi64 ", dstSuid:%" PRIi64 " dstTb:%s dstVg:%d",
+         pCreate->name, smaObj.uid, smaObj.stbUid, smaObj.dstTbUid, smaObj.dstTbName, smaObj.dstVgId);
+
   code = 0;
 
 _OVER:
diff --git a/source/dnode/mnode/impl/src/mndStream.c b/source/dnode/mnode/impl/src/mndStream.c
index 902879701cfefb6b169b3732214abbffae8f8458..ba9bb2982f88c82ffff59648c6f988a9a163204c 100644
--- a/source/dnode/mnode/impl/src/mndStream.c
+++ b/source/dnode/mnode/impl/src/mndStream.c
@@ -36,7 +36,7 @@ static int32_t mndStreamActionDelete(SSdb *pSdb, SStreamObj *pStream);
 static int32_t mndStreamActionUpdate(SSdb *pSdb, SStreamObj *pStream, SStreamObj *pNewStream);
 static int32_t mndProcessCreateStreamReq(SRpcMsg *pReq);
 static int32_t mndProcessDropStreamReq(SRpcMsg *pReq);
-static int32_t mndProcessRecoverStreamReq(SRpcMsg *pReq);
+/*static int32_t mndProcessRecoverStreamReq(SRpcMsg *pReq);*/
 static int32_t mndProcessStreamMetaReq(SRpcMsg *pReq);
 static int32_t mndGetStreamMeta(SRpcMsg *pReq, SShowObj *pShow, STableMetaRsp *pMeta);
 static int32_t mndRetrieveStream(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
@@ -55,7 +55,7 @@ int32_t mndInitStream(SMnode *pMnode) {
 
   mndSetMsgHandle(pMnode, TDMT_MND_CREATE_STREAM, mndProcessCreateStreamReq);
   mndSetMsgHandle(pMnode, TDMT_MND_DROP_STREAM, mndProcessDropStreamReq);
-  mndSetMsgHandle(pMnode, TDMT_MND_RECOVER_STREAM, mndProcessRecoverStreamReq);
+  /*mndSetMsgHandle(pMnode, TDMT_MND_RECOVER_STREAM, mndProcessRecoverStreamReq);*/
 
   mndSetMsgHandle(pMnode, TDMT_STREAM_TASK_DEPLOY_RSP, mndTransProcessRsp);
   mndSetMsgHandle(pMnode, TDMT_STREAM_TASK_DROP_RSP, mndTransProcessRsp);
@@ -540,6 +540,7 @@ static int32_t mndPersistTaskRecoverReq(STrans *pTrans, SStreamTask *pTask) {
   return 0;
 }
 
+#if 0
 int32_t mndRecoverStreamTasks(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream) {
   if (pStream->isDistributed) {
     int32_t lv = taosArrayGetSize(pStream->tasks);
@@ -573,6 +574,7 @@ int32_t mndRecoverStreamTasks(SMnode *pMnode, STrans *pTrans, SStreamObj *pStrea
   }
   return 0;
 }
+#endif
 
 int32_t mndDropStreamTasks(SMnode *pMnode, STrans *pTrans, SStreamObj *pStream) {
   int32_t lv = taosArrayGetSize(pStream->tasks);
@@ -755,6 +757,7 @@ static int32_t mndProcessDropStreamReq(SRpcMsg *pReq) {
   return TSDB_CODE_ACTION_IN_PROGRESS;
 }
 
+#if 0
 static int32_t mndProcessRecoverStreamReq(SRpcMsg *pReq) {
   SMnode     *pMnode = pReq->info.node;
   SStreamObj *pStream = NULL;
@@ -817,6 +820,7 @@ static int32_t mndProcessRecoverStreamReq(SRpcMsg *pReq) {
 
   return TSDB_CODE_ACTION_IN_PROGRESS;
 }
+#endif
 
 int32_t mndDropStreamByDb(SMnode *pMnode, STrans *pTrans, SDbObj *pDb) {
   SSdb *pSdb = pMnode->pSdb;
diff --git a/source/dnode/vnode/src/inc/sma.h b/source/dnode/vnode/src/inc/sma.h
index 1aee08027c50402d2329bfcec75e4811fb558d3d..944d7759b28c41a901d7ed0f666eca2ffef30b6a 100644
--- a/source/dnode/vnode/src/inc/sma.h
+++ b/source/dnode/vnode/src/inc/sma.h
@@ -115,24 +115,29 @@ struct SSmaStat {
 #define RSMA_FS_LOCK(r)       (&(r)->lock)
 
 struct SRSmaInfoItem {
-  void   *taskInfo;  // qTaskInfo_t
-  int64_t refId;
-  tmr_h   tmrId;
-  int32_t maxDelay;
   int8_t  level;
   int8_t  triggerStat;
+  int32_t maxDelay;
+  tmr_h   tmrId;
 };
 
 struct SRSmaInfo {
   STSchema *pTSchema;
   int64_t   suid;
+  int64_t   refId;  // refId of SRSmaStat
   int8_t    delFlag;
   T_REF_DECLARE()
   SRSmaInfoItem items[TSDB_RETENTION_L2];
+  void         *taskInfo[TSDB_RETENTION_L2];   // qTaskInfo_t
+  void         *iTaskInfo[TSDB_RETENTION_L2];  // immutable
 };
-#define RSMA_INFO_HEAD_LEN   24
-#define RSMA_INFO_IS_DEL(r)  ((r)->delFlag == 1)
-#define RSMA_INFO_SET_DEL(r) ((r)->delFlag = 1)
+
+#define RSMA_INFO_HEAD_LEN     32
+#define RSMA_INFO_IS_DEL(r)    ((r)->delFlag == 1)
+#define RSMA_INFO_SET_DEL(r)   ((r)->delFlag = 1)
+#define RSMA_INFO_QTASK(r, i)  ((r)->taskInfo[i])
+#define RSMA_INFO_IQTASK(r, i) ((r)->iTaskInfo[i])
+#define RSMA_INFO_ITEM(r, i)   (&(r)->items[i])
 
 enum {
   TASK_TRIGGER_STAT_INIT = 0,
@@ -168,8 +173,8 @@ int32_t tdUnRefSmaStat(SSma *pSma, SSmaStat *pStat);
 int32_t tdRefRSmaInfo(SSma *pSma, SRSmaInfo *pRSmaInfo);
 int32_t tdUnRefRSmaInfo(SSma *pSma, SRSmaInfo *pRSmaInfo);
 
-void   *tdAcquireSmaRef(int32_t rsetId, int64_t refId, const char *tags, int32_t ln);
-int32_t tdReleaseSmaRef(int32_t rsetId, int64_t refId, const char *tags, int32_t ln);
+void   *tdAcquireSmaRef(int32_t rsetId, int64_t refId);
+int32_t tdReleaseSmaRef(int32_t rsetId, int64_t refId);
 
 int32_t tdCheckAndInitSmaEnv(SSma *pSma, int8_t smaType);
 
@@ -223,12 +228,11 @@ static FORCE_INLINE void tdSmaStatSetDropped(STSmaStat *pTStat) {
 
 void           tdRSmaQTaskInfoGetFileName(int32_t vid, int64_t version, char *outputName);
 void           tdRSmaQTaskInfoGetFullName(int32_t vid, int64_t version, const char *path, char *outputName);
-int32_t        tdCloneRSmaInfo(SSma *pSma, SRSmaInfo *pDest, SRSmaInfo *pSrc);
+int32_t        tdCloneRSmaInfo(SSma *pSma, SRSmaInfo **pDest, SRSmaInfo *pSrc);
 void           tdFreeQTaskInfo(qTaskInfo_t *taskHandle, int32_t vgId, int32_t level);
 static int32_t tdDestroySmaState(SSmaStat *pSmaStat, int8_t smaType);
 void          *tdFreeSmaState(SSmaStat *pSmaStat, int8_t smaType);
 void          *tdFreeRSmaInfo(SSma *pSma, SRSmaInfo *pInfo, bool isDeepFree);
-void           tdRemoveRSmaInfoBySuid(SSma *pSma, int64_t suid);
 int32_t        tdRSmaPersistExecImpl(SRSmaStat *pRSmaStat, SHashObj *pInfoHash);
 
 int32_t tdProcessRSmaCreateImpl(SSma *pSma, SRSmaParam *param, int64_t suid, const char *tbName);
diff --git a/source/dnode/vnode/src/inc/tq.h b/source/dnode/vnode/src/inc/tq.h
index c093b2cd5d1eb6142dc33d0d2f4fa4693debdce7..a1dba41c941f9baf8a28304b80eb12530e929e9d 100644
--- a/source/dnode/vnode/src/inc/tq.h
+++ b/source/dnode/vnode/src/inc/tq.h
@@ -117,10 +117,9 @@ typedef struct {
 struct STQ {
   SVnode*   pVnode;
   char*     path;
-  SHashObj* pushMgr;       // consumerId -> STqHandle*
-  SHashObj* handles;       // subKey -> STqHandle
-  SHashObj* pStreamTasks;  // taksId -> SStreamTask
-  SHashObj* pAlterInfo;    // topic -> SAlterCheckInfo
+  SHashObj* pushMgr;     // consumerId -> STqHandle*
+  SHashObj* handles;     // subKey -> STqHandle
+  SHashObj* pAlterInfo;  // topic -> SAlterCheckInfo
 
   STqOffsetStore* pOffsetStore;
 
@@ -129,9 +128,7 @@ struct STQ {
 
   TTB* pAlterInfoStore;
 
-  TDB* pStreamStore;
-  TTB* pTaskDb;
-  TTB* pTaskState;
+  SStreamMeta* pStreamMeta;
 };
 
 typedef struct {
@@ -188,6 +185,9 @@ static FORCE_INLINE void tqOffsetResetToLog(STqOffsetVal* pOffsetVal, int64_t ve
   pOffsetVal->version = ver;
 }
 
+// tqStream
+int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index fdf2da5558d36af12dda1a3143ab27550bc3d633..7427f79509d863bf9b16c7d9cbc10b4f5f8fecc6 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -381,6 +381,8 @@ int metaCreateTable(SMeta *pMeta, int64_t version, SVCreateTbReq *pReq) {
     terrno = TSDB_CODE_TDB_TABLE_ALREADY_EXIST;
     metaReaderClear(&mr);
     return -1;
+  } else if (terrno == TSDB_CODE_PAR_TABLE_NOT_EXIST) {
+    terrno = TSDB_CODE_SUCCESS;
   }
   metaReaderClear(&mr);
 
diff --git a/source/dnode/vnode/src/sma/smaCommit.c b/source/dnode/vnode/src/sma/smaCommit.c
index 3c88b6f5cb6ee9f7f2c4a071236134a55f877e68..373cfdfb47a47ceaba6be6ca0e5e9531f61e2441 100644
--- a/source/dnode/vnode/src/sma/smaCommit.c
+++ b/source/dnode/vnode/src/sma/smaCommit.c
@@ -308,12 +308,12 @@ static int32_t tdProcessRSmaSyncPostCommitImpl(SSma *pSma) {
  * @return int32_t
  */
 static int32_t tdProcessRSmaAsyncPreCommitImpl(SSma *pSma) {
-  SSmaEnv *pSmaEnv = SMA_RSMA_ENV(pSma);
-  if (!pSmaEnv) {
+  SSmaEnv *pEnv = SMA_RSMA_ENV(pSma);
+  if (!pEnv) {
     return TSDB_CODE_SUCCESS;
   }
 
-  SSmaStat  *pStat = SMA_ENV_STAT(pSmaEnv);
+  SSmaStat  *pStat = SMA_ENV_STAT(pEnv);
   SRSmaStat *pRSmaStat = SMA_RSMA_STAT(pStat);
 
   // step 1: set rsma stat
@@ -337,18 +337,26 @@ static int32_t tdProcessRSmaAsyncPreCommitImpl(SSma *pSma) {
   }
 
   // step 3:  swap rsmaInfoHash and iRsmaInfoHash
-  ASSERT(!RSMA_IMU_INFO_HASH(pRSmaStat));
+  // lock
+  taosWLockLatch(SMA_ENV_LOCK(pEnv));
+
   ASSERT(RSMA_INFO_HASH(pRSmaStat));
+  ASSERT(!RSMA_IMU_INFO_HASH(pRSmaStat));
 
   RSMA_IMU_INFO_HASH(pRSmaStat) = RSMA_INFO_HASH(pRSmaStat);
   RSMA_INFO_HASH(pRSmaStat) =
       taosHashInit(RSMA_TASK_INFO_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, HASH_ENTRY_LOCK);
 
   if (!RSMA_INFO_HASH(pRSmaStat)) {
+    // unlock
+    taosWUnLockLatch(SMA_ENV_LOCK(pEnv));
     smaError("vgId:%d, rsma async commit failed since %s", SMA_VID(pSma), terrstr());
     return TSDB_CODE_FAILED;
   }
 
+  // unlock
+  taosWUnLockLatch(SMA_ENV_LOCK(pEnv));
+
   // step 4: others
   pRSmaStat->commitAppliedVer = pSma->pVnode->state.applied;
 
@@ -383,26 +391,52 @@ static int32_t tdProcessRSmaAsyncCommitImpl(SSma *pSma) {
  * @return int32_t
  */
 static int32_t tdProcessRSmaAsyncPostCommitImpl(SSma *pSma) {
-  SSmaEnv *pSmaEnv = SMA_RSMA_ENV(pSma);
-  if (!pSmaEnv) {
+  SSmaEnv *pEnv = SMA_RSMA_ENV(pSma);
+  if (!pEnv) {
     return TSDB_CODE_SUCCESS;
   }
 
-  SSmaStat  *pStat = SMA_ENV_STAT(pSmaEnv);
+  SSmaStat  *pStat = SMA_ENV_STAT(pEnv);
   SRSmaStat *pRSmaStat = SMA_RSMA_STAT(pStat);
 
   // step 1: merge rsmaInfoHash and iRsmaInfoHash
-  taosWLockLatch(SMA_ENV_LOCK(pSmaEnv));
-
+  // lock
+  taosWLockLatch(SMA_ENV_LOCK(pEnv));
+#if 0
   if (taosHashGetSize(RSMA_INFO_HASH(pRSmaStat)) <= 0) {
-    // TODO: optimization - just switch the hash pointer if rsmaInfoHash is empty
-  }
-
+    // just switch the hash pointer if rsmaInfoHash is empty
+    if (taosHashGetSize(RSMA_IMU_INFO_HASH(pRSmaStat)) > 0) {
+      SHashObj *infoHash = RSMA_INFO_HASH(pRSmaStat);
+      RSMA_INFO_HASH(pRSmaStat) = RSMA_IMU_INFO_HASH(pRSmaStat);
+      RSMA_IMU_INFO_HASH(pRSmaStat) = infoHash;
+    }
+  } else {
+#endif
+#if 1
   void *pIter = taosHashIterate(RSMA_IMU_INFO_HASH(pRSmaStat), NULL);
   while (pIter) {
     tb_uid_t *pSuid = (tb_uid_t *)taosHashGetKey(pIter, NULL);
 
     if (!taosHashGet(RSMA_INFO_HASH(pRSmaStat), pSuid, sizeof(tb_uid_t))) {
+      SRSmaInfo *pRSmaInfo = *(SRSmaInfo **)pIter;
+      if (RSMA_INFO_IS_DEL(pRSmaInfo)) {
+        int32_t refVal = T_REF_VAL_GET(pRSmaInfo);
+        if (refVal == 0) {
+          tdFreeRSmaInfo(pSma, pRSmaInfo, true);
+          smaDebug(
+              "vgId:%d, rsma async post commit, free rsma info since already deleted and ref is 0 for "
+              "table:%" PRIi64,
+              SMA_VID(pSma), *pSuid);
+        } else {
+          smaDebug(
+              "vgId:%d, rsma async post commit, not free rsma info since ref is %d although already deleted for "
+              "table:%" PRIi64,
+              SMA_VID(pSma), refVal, *pSuid);
+        }
+
+        pIter = taosHashIterate(RSMA_IMU_INFO_HASH(pRSmaStat), pIter);
+        continue;
+      }
       taosHashPut(RSMA_INFO_HASH(pRSmaStat), pSuid, sizeof(tb_uid_t), pIter, sizeof(pIter));
       smaDebug("vgId:%d, rsma async post commit, migrated from iRsmaInfoHash for table:%" PRIi64, SMA_VID(pSma),
                *pSuid);
@@ -416,11 +450,14 @@ static int32_t tdProcessRSmaAsyncPostCommitImpl(SSma *pSma) {
 
     pIter = taosHashIterate(RSMA_IMU_INFO_HASH(pRSmaStat), pIter);
   }
+#endif
+  // }
 
   taosHashCleanup(RSMA_IMU_INFO_HASH(pRSmaStat));
   RSMA_IMU_INFO_HASH(pRSmaStat) = NULL;
 
-  taosWUnLockLatch(SMA_ENV_LOCK(pSmaEnv));
+  // unlock
+  taosWUnLockLatch(SMA_ENV_LOCK(pEnv));
 
   // step 2: cleanup outdated qtaskinfo files
   tdCleanupQTaskInfoFiles(pSma, pRSmaStat);
diff --git a/source/dnode/vnode/src/sma/smaEnv.c b/source/dnode/vnode/src/sma/smaEnv.c
index 4b831225bc73725a417f07ce029a5d541e406208..ccb6ad3a72c2358772b652d04709d5eebc2fd2fb 100644
--- a/source/dnode/vnode/src/sma/smaEnv.c
+++ b/source/dnode/vnode/src/sma/smaEnv.c
@@ -17,7 +17,7 @@
 
 typedef struct SSmaStat SSmaStat;
 
-#define SMA_MGMT_REF_NUM         10240
+#define SMA_MGMT_REF_NUM 10240
 
 extern SSmaMgmt smaMgmt;
 
@@ -171,7 +171,7 @@ int32_t tdUnRefSmaStat(SSma *pSma, SSmaStat *pStat) {
 
 int32_t tdRefRSmaInfo(SSma *pSma, SRSmaInfo *pRSmaInfo) {
   if (!pRSmaInfo) return 0;
-
+  
   int ref = T_REF_INC(pRSmaInfo);
   smaDebug("vgId:%d, ref rsma info:%p, val:%d", SMA_VID(pSma), pRSmaInfo, ref);
   return 0;
@@ -183,9 +183,6 @@ int32_t tdUnRefRSmaInfo(SSma *pSma, SRSmaInfo *pRSmaInfo) {
   int ref = T_REF_DEC(pRSmaInfo);
   smaDebug("vgId:%d, unref rsma info:%p, val:%d", SMA_VID(pSma), pRSmaInfo, ref);
 
-  if (ref == 0) {
-    tdRemoveRSmaInfoBySuid(pSma, pRSmaInfo->suid);
-  }
   return 0;
 }
 
diff --git a/source/dnode/vnode/src/sma/smaRollup.c b/source/dnode/vnode/src/sma/smaRollup.c
index 1c6d65c4d82f0b3903ecbd3c2930602f98dd10ea..fd2222c5e4e7aa2c38ffd9788446f4f025cab71f 100644
--- a/source/dnode/vnode/src/sma/smaRollup.c
+++ b/source/dnode/vnode/src/sma/smaRollup.c
@@ -32,12 +32,14 @@ static int32_t    tdUidStorePut(STbUidStore *pStore, tb_uid_t suid, tb_uid_t *ui
 static int32_t    tdUpdateTbUidListImpl(SSma *pSma, tb_uid_t *suid, SArray *tbUids);
 static int32_t    tdSetRSmaInfoItemParams(SSma *pSma, SRSmaParam *param, SRSmaStat *pStat, SRSmaInfo *pRSmaInfo,
                                           int8_t idx);
-static int32_t    tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int32_t inputType, SRSmaInfoItem *rsmaItem,
-                                    STSchema *pTSchema, tb_uid_t suid, int8_t level);
-static SRSmaInfo *tdGetRSmaInfoBySuid(SSma *pSma, int64_t suid);
-static int32_t    tdRSmaFetchAndSubmitResult(SRSmaInfoItem *pItem, STSchema *pTSchema, int64_t suid, SRSmaStat *pStat,
-                                             int8_t blkType);
-static void       tdRSmaFetchTrigger(void *param, void *tmrId);
+static int32_t    tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int32_t inputType, SRSmaInfo *pInfo, tb_uid_t suid,
+                                    int8_t level);
+static SRSmaInfo *tdAcquireRSmaInfoBySuid(SSma *pSma, int64_t suid);
+static void       tdReleaseRSmaInfo(SSma *pSma, SRSmaInfo *pInfo);
+
+static int32_t tdRSmaFetchAndSubmitResult(qTaskInfo_t taskInfo, SRSmaInfoItem *pItem, STSchema *pTSchema, int64_t suid,
+                                          SRSmaStat *pStat, int8_t blkType);
+static void    tdRSmaFetchTrigger(void *param, void *tmrId);
 
 static int32_t tdRSmaQTaskInfoIterInit(SRSmaQTaskInfoIter *pIter, STFile *pTFile);
 static int32_t tdRSmaQTaskInfoIterNextBlock(SRSmaQTaskInfoIter *pIter, bool *isFinish);
@@ -115,17 +117,26 @@ void *tdFreeRSmaInfo(SSma *pSma, SRSmaInfo *pInfo, bool isDeepFree) {
   if (pInfo) {
     for (int32_t i = 0; i < TSDB_RETENTION_L2; ++i) {
       SRSmaInfoItem *pItem = &pInfo->items[i];
-      if (pItem->taskInfo) {
-        if (isDeepFree && pItem->tmrId) {
-          smaDebug("vgId:%d, stop fetch timer %p for table %" PRIi64 " level %d", SMA_VID(pSma), pInfo->suid,
-                   pItem->tmrId, i + 1);
-          taosTmrStopA(&pItem->tmrId);
-        }
-        tdFreeQTaskInfo(&pItem->taskInfo, SMA_VID(pSma), i + 1);
+
+      if (isDeepFree && pItem->tmrId) {
+        smaDebug("vgId:%d, stop fetch timer %p for table %" PRIi64 " level %d", SMA_VID(pSma), pInfo->suid,
+                 pItem->tmrId, i + 1);
+        taosTmrStopA(&pItem->tmrId);
+      }
+
+      if (isDeepFree && pInfo->taskInfo[i]) {
+        tdFreeQTaskInfo(&pInfo->taskInfo[i], SMA_VID(pSma), i + 1);
       } else {
         smaDebug("vgId:%d, table %" PRIi64 " no need to destroy rsma info level %d since empty taskInfo", SMA_VID(pSma),
                  pInfo->suid, i + 1);
       }
+
+      if (pInfo->iTaskInfo[i]) {
+        tdFreeQTaskInfo(&pInfo->iTaskInfo[i], SMA_VID(pSma), i + 1);
+      } else {
+        smaDebug("vgId:%d, table %" PRIi64 " no need to destroy rsma info level %d since empty iTaskInfo",
+                 SMA_VID(pSma), pInfo->suid, i + 1);
+      }
     }
     if (isDeepFree) {
       taosMemoryFreeClear(pInfo->pTSchema);
@@ -155,7 +166,12 @@ static int32_t tdUpdateTbUidListImpl(SSma *pSma, tb_uid_t *suid, SArray *tbUids)
     return TSDB_CODE_FAILED;
   }
 
-  pRSmaInfo = tdGetRSmaInfoBySuid(pSma, *suid);
+  if (!taosArrayGetSize(tbUids)) {
+    smaDebug("vgId:%d, no need to update tbUidList for suid:%" PRIi64 " since Empty tbUids", SMA_VID(pSma), *suid);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  pRSmaInfo = tdAcquireRSmaInfoBySuid(pSma, *suid);
 
   if (!pRSmaInfo) {
     smaError("vgId:%d, failed to get rsma info for uid:%" PRIi64, SMA_VID(pSma), *suid);
@@ -163,26 +179,21 @@ static int32_t tdUpdateTbUidListImpl(SSma *pSma, tb_uid_t *suid, SArray *tbUids)
     return TSDB_CODE_FAILED;
   }
 
-  if (pRSmaInfo->items[0].taskInfo) {
-    if ((qUpdateQualifiedTableId(pRSmaInfo->items[0].taskInfo, tbUids, true) < 0)) {
-      smaError("vgId:%d, update tbUidList failed for uid:%" PRIi64 " since %s", SMA_VID(pSma), *suid, terrstr());
-      return TSDB_CODE_FAILED;
-    } else {
-      smaDebug("vgId:%d, update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 ", uid:%" PRIi64, SMA_VID(pSma),
-               pRSmaInfo->items[0].taskInfo, *suid, *(int64_t *)taosArrayGet(tbUids, 0));
-    }
-  }
-
-  if (pRSmaInfo->items[1].taskInfo) {
-    if ((qUpdateQualifiedTableId(pRSmaInfo->items[1].taskInfo, tbUids, true) < 0)) {
-      smaError("vgId:%d, update tbUidList failed for uid:%" PRIi64 " since %s", SMA_VID(pSma), *suid, terrstr());
-      return TSDB_CODE_FAILED;
-    } else {
-      smaDebug("vgId:%d, update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 ", uid:%" PRIi64, SMA_VID(pSma),
-               pRSmaInfo->items[1].taskInfo, *suid, *(int64_t *)taosArrayGet(tbUids, 0));
+  for (int32_t i = 0; i < TSDB_RETENTION_L2; ++i) {
+    if (pRSmaInfo->taskInfo[i]) {
+      if ((qUpdateQualifiedTableId(pRSmaInfo->taskInfo[i], tbUids, true) < 0)) {
+        tdReleaseRSmaInfo(pSma, pRSmaInfo);
+        smaError("vgId:%d, update tbUidList failed for uid:%" PRIi64 " level %d since %s", SMA_VID(pSma), *suid, i,
+                 terrstr());
+        return TSDB_CODE_FAILED;
+      } else {
+        smaDebug("vgId:%d, update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 " uid:%" PRIi64 " level %d",
+                 SMA_VID(pSma), pRSmaInfo->taskInfo[0], *suid, *(int64_t *)taosArrayGet(tbUids, 0), i);
+      }
     }
   }
 
+  tdReleaseRSmaInfo(pSma, pRSmaInfo);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -267,13 +278,12 @@ static int32_t tdSetRSmaInfoItemParams(SSma *pSma, SRSmaParam *param, SRSmaStat
         .initTqReader = 1,
     };
 
-    SRSmaInfoItem *pItem = &(pRSmaInfo->items[idx]);
-    pItem->refId = RSMA_REF_ID(pStat);
-    pItem->taskInfo = qCreateStreamExecTaskInfo(param->qmsg[idx], &handle);
-    if (!pItem->taskInfo) {
+    pRSmaInfo->taskInfo[idx] = qCreateStreamExecTaskInfo(param->qmsg[idx], &handle);
+    if (!pRSmaInfo->taskInfo[idx]) {
       terrno = TSDB_CODE_RSMA_QTASKINFO_CREATE;
       return TSDB_CODE_FAILED;
     }
+    SRSmaInfoItem *pItem = &(pRSmaInfo->items[idx]);
     pItem->triggerStat = TASK_TRIGGER_STAT_INACTIVE;
     if (param->maxdelay[idx] < TSDB_MIN_ROLLUP_MAX_DELAY) {
       int64_t msInterval =
@@ -342,6 +352,7 @@ int32_t tdProcessRSmaCreateImpl(SSma *pSma, SRSmaParam *param, int64_t suid, con
   }
   pRSmaInfo->pTSchema = pTSchema;
   pRSmaInfo->suid = suid;
+  pRSmaInfo->refId = RSMA_REF_ID(pStat);
   T_REF_INIT_VAL(pRSmaInfo, 1);
 
   if (tdSetRSmaInfoItemParams(pSma, param, pStat, pRSmaInfo, 0) < 0) {
@@ -411,7 +422,7 @@ int32_t tdProcessRSmaDrop(SSma *pSma, SVDropStbReq *pReq) {
   SSmaStat  *pStat = SMA_ENV_STAT(pSmaEnv);
   SRSmaStat *pRSmaStat = SMA_RSMA_STAT(pStat);
 
-  SRSmaInfo *pRSmaInfo = tdGetRSmaInfoBySuid(pSma, pReq->suid);
+  SRSmaInfo *pRSmaInfo = tdAcquireRSmaInfoBySuid(pSma, pReq->suid);
 
   if (!pRSmaInfo) {
     smaWarn("vgId:%d, drop rsma for stable %s %" PRIi64 " failed no rsma in hash", TD_VID(pVnode), pReq->name,
@@ -423,8 +434,10 @@ int32_t tdProcessRSmaDrop(SSma *pSma, SVDropStbReq *pReq) {
   RSMA_INFO_SET_DEL(pRSmaInfo);
   tdUnRefRSmaInfo(pSma, pRSmaInfo);
 
-  // save to file
+  tdReleaseRSmaInfo(pSma, pRSmaInfo);
 
+  // save to file
+  // TODO
   smaDebug("vgId:%d, drop rsma for table %" PRIi64 " succeed", TD_VID(pVnode), pReq->suid);
   return TSDB_CODE_SUCCESS;
 }
@@ -567,8 +580,32 @@ static void tdDestroySDataBlockArray(SArray *pArray) {
   taosArrayDestroy(pArray);
 }
 
-static int32_t tdRSmaFetchAndSubmitResult(SRSmaInfoItem *pItem, STSchema *pTSchema, int64_t suid, SRSmaStat *pStat,
-                                          int8_t blkType) {
+/**
+ * @brief retention of rsma1/rsma2
+ *
+ * @param pSma
+ * @param now
+ * @return int32_t
+ */
+int32_t smaDoRetention(SSma *pSma, int64_t now) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  if (VND_IS_RSMA(pSma->pVnode)) {
+    return code;
+  }
+
+  for (int32_t i = 0; i < TSDB_RETENTION_L2; ++i) {
+    if (pSma->pRSmaTsdb[i]) {
+      code = tsdbDoRetention(pSma->pRSmaTsdb[i], now);
+      if (code) goto _end;
+    }
+  }
+
+_end:
+  return code;
+}
+
+static int32_t tdRSmaFetchAndSubmitResult(qTaskInfo_t taskInfo, SRSmaInfoItem *pItem, STSchema *pTSchema, int64_t suid,
+                                          SRSmaStat *pStat, int8_t blkType) {
   SArray *pResult = NULL;
   SSma   *pSma = pStat->pSma;
 
@@ -576,7 +613,7 @@ static int32_t tdRSmaFetchAndSubmitResult(SRSmaInfoItem *pItem, STSchema *pTSche
     SSDataBlock *output = NULL;
     uint64_t     ts;
 
-    int32_t code = qExecTask(pItem->taskInfo, &output, &ts);
+    int32_t code = qExecTask(taskInfo, &output, &ts);
     if (code < 0) {
       smaError("vgId:%d, qExecTask for rsma table %" PRIi64 " level %" PRIi8 " failed since %s", SMA_VID(pSma), suid,
                pItem->level, terrstr(code));
@@ -637,29 +674,32 @@ _err:
   return TSDB_CODE_FAILED;
 }
 
-static int32_t tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int32_t inputType, SRSmaInfoItem *pItem,
-                                 STSchema *pTSchema, tb_uid_t suid, int8_t level) {
-  if (!pItem || !pItem->taskInfo) {
+static int32_t tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int32_t inputType, SRSmaInfo *pInfo, tb_uid_t suid,
+                                 int8_t level) {
+  int32_t idx = level - 1;
+  if (!pInfo || !RSMA_INFO_QTASK(pInfo, idx)) {
     smaDebug("vgId:%d, no qTaskInfo to execute rsma %" PRIi8 " task for suid:%" PRIu64, SMA_VID(pSma), level, suid);
     return TSDB_CODE_SUCCESS;
   }
-  if (!pTSchema) {
+  if (!pInfo->pTSchema) {
     smaWarn("vgId:%d, no schema to execute rsma %" PRIi8 " task for suid:%" PRIu64, SMA_VID(pSma), level, suid);
     return TSDB_CODE_FAILED;
   }
 
   smaDebug("vgId:%d, execute rsma %" PRIi8 " task for qTaskInfo:%p suid:%" PRIu64, SMA_VID(pSma), level,
-           pItem->taskInfo, suid);
+           RSMA_INFO_QTASK(pInfo, idx), suid);
 
-  if (qSetMultiStreamInput(pItem->taskInfo, pMsg, 1, inputType) < 0) {  // INPUT__DATA_SUBMIT
+  if (qSetMultiStreamInput(RSMA_INFO_QTASK(pInfo, idx), pMsg, 1, inputType) < 0) {  // INPUT__DATA_SUBMIT
     smaError("vgId:%d, rsma %" PRIi8 " qSetStreamInput failed since %s", SMA_VID(pSma), level, tstrerror(terrno));
     return TSDB_CODE_FAILED;
   }
 
-  SSmaEnv   *pEnv = SMA_RSMA_ENV(pSma);
-  SRSmaStat *pStat = SMA_RSMA_STAT(pEnv->pStat);
+  SSmaEnv       *pEnv = SMA_RSMA_ENV(pSma);
+  SRSmaStat     *pStat = SMA_RSMA_STAT(pEnv->pStat);
+  SRSmaInfoItem *pItem = RSMA_INFO_ITEM(pInfo, idx);
 
-  tdRSmaFetchAndSubmitResult(pItem, pTSchema, suid, pStat, STREAM_INPUT__DATA_SUBMIT);
+  tdRSmaFetchAndSubmitResult(RSMA_INFO_QTASK(pInfo, idx), pItem, pInfo->pTSchema, suid, pStat,
+                             STREAM_INPUT__DATA_SUBMIT);
   atomic_store_8(&pItem->triggerStat, TASK_TRIGGER_STAT_ACTIVE);
 
   if (smaMgmt.tmrHandle) {
@@ -678,7 +718,7 @@ static int32_t tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int32_t inputType
  * @param suid
  * @return SRSmaInfo*
  */
-static SRSmaInfo *tdGetRSmaInfoBySuid(SSma *pSma, int64_t suid) {
+static SRSmaInfo *tdAcquireRSmaInfoBySuid(SSma *pSma, int64_t suid) {
   SSmaEnv   *pEnv = SMA_RSMA_ENV(pSma);
   SRSmaStat *pStat = NULL;
   SRSmaInfo *pRSmaInfo = NULL;
@@ -692,94 +732,86 @@ static SRSmaInfo *tdGetRSmaInfoBySuid(SSma *pSma, int64_t suid) {
     return NULL;
   }
 
+  taosRLockLatch(SMA_ENV_LOCK(pEnv));
   pRSmaInfo = taosHashGet(RSMA_INFO_HASH(pStat), &suid, sizeof(tb_uid_t));
   if (pRSmaInfo && (pRSmaInfo = *(SRSmaInfo **)pRSmaInfo)) {
+    if (RSMA_INFO_IS_DEL(pRSmaInfo)) {
+      taosRUnLockLatch(SMA_ENV_LOCK(pEnv));
+      return NULL;
+    }
+    tdRefRSmaInfo(pSma, pRSmaInfo);
+    taosRUnLockLatch(SMA_ENV_LOCK(pEnv));
     return pRSmaInfo;
   }
 
-  if (RSMA_COMMIT_STAT(pStat) == 0) {
+  if (RSMA_COMMIT_STAT(pStat) == 0) {  // return NULL if not in committing stat
+    taosRUnLockLatch(SMA_ENV_LOCK(pEnv));
     return NULL;
   }
+  taosRUnLockLatch(SMA_ENV_LOCK(pEnv));
 
   // clone the SRSmaInfo from iRsmaInfoHash to rsmaInfoHash if in committing stat
   SRSmaInfo *pCowRSmaInfo = NULL;
   // lock
   taosWLockLatch(SMA_ENV_LOCK(pEnv));
-  if (!taosHashGet(RSMA_INFO_HASH(pStat), &suid, sizeof(tb_uid_t))) {  // 2-phase lock
+  if (!(pCowRSmaInfo = taosHashGet(RSMA_INFO_HASH(pStat), &suid, sizeof(tb_uid_t)))) {  // 2-phase lock
     void *iRSmaInfo = taosHashGet(RSMA_IMU_INFO_HASH(pStat), &suid, sizeof(tb_uid_t));
     if (iRSmaInfo) {
       SRSmaInfo *pIRSmaInfo = *(SRSmaInfo **)iRSmaInfo;
-      if (pIRSmaInfo) {
-        if (tdCloneRSmaInfo(pSma, pCowRSmaInfo, pIRSmaInfo) < 0) {
+      if (pIRSmaInfo && !RSMA_INFO_IS_DEL(pIRSmaInfo)) {
+        if (tdCloneRSmaInfo(pSma, &pCowRSmaInfo, pIRSmaInfo) < 0) {
+          // unlock
           taosWUnLockLatch(SMA_ENV_LOCK(pEnv));
           smaError("vgId:%d, clone rsma info failed for suid:%" PRIu64 " since %s", SMA_VID(pSma), suid, terrstr());
           return NULL;
         }
         smaDebug("vgId:%d, clone rsma info succeed for suid:%" PRIu64, SMA_VID(pSma), suid);
         if (taosHashPut(RSMA_INFO_HASH(pStat), &suid, sizeof(tb_uid_t), &pCowRSmaInfo, sizeof(pCowRSmaInfo)) < 0) {
+          // unlock
           taosWUnLockLatch(SMA_ENV_LOCK(pEnv));
+          smaError("vgId:%d, clone rsma info failed for suid:%" PRIu64 " since %s", SMA_VID(pSma), suid, terrstr());
           return NULL;
         }
       }
     }
+  } else {
+    pCowRSmaInfo = *(SRSmaInfo **)pCowRSmaInfo;
+    ASSERT(!pCowRSmaInfo);
+  }
+
+  if(pCowRSmaInfo) {
+    tdRefRSmaInfo(pSma, pCowRSmaInfo);
   }
   // unlock
   taosWUnLockLatch(SMA_ENV_LOCK(pEnv));
   return pCowRSmaInfo;
 }
 
-/**
- * @brief During the drop procedure, only need to delete the object in rsmaInfoHash.
- *
- * @param pSma
- * @param suid
- * @return SRSmaInfo*
- */
-void tdRemoveRSmaInfoBySuid(SSma *pSma, int64_t suid) {
-  SSmaEnv   *pEnv = SMA_RSMA_ENV(pSma);
-  SRSmaStat *pStat = NULL;
-  SRSmaInfo *pRSmaInfo = NULL;
-
-  if (!pEnv) {
-    return;
-  }
-
-  pStat = (SRSmaStat *)SMA_ENV_STAT(pEnv);
-  if (!pStat || !RSMA_INFO_HASH(pStat)) {
-    return;
-  }
-
-  pRSmaInfo = taosHashGet(RSMA_INFO_HASH(pStat), &suid, sizeof(tb_uid_t));
-  if (pRSmaInfo) {
-    if ((pRSmaInfo = *(SRSmaInfo **)pRSmaInfo)) {
-      tdFreeRSmaInfo(pSma, pRSmaInfo, true);
-    }
-    taosHashRemove(RSMA_INFO_HASH(pStat), &suid, sizeof(tb_uid_t));
-    smaDebug("vgId:%d, remove from infoHash for table:%" PRIu64 " succeed", SMA_VID(pSma), suid);
+static FORCE_INLINE void tdReleaseRSmaInfo(SSma *pSma, SRSmaInfo *pInfo) {
+  if (pInfo) {
+    tdUnRefRSmaInfo(pSma, pInfo);
   }
 }
 
 static int32_t tdExecuteRSma(SSma *pSma, const void *pMsg, int32_t inputType, tb_uid_t suid) {
-  SRSmaInfo *pRSmaInfo = tdGetRSmaInfoBySuid(pSma, suid);
+  SRSmaInfo *pRSmaInfo = tdAcquireRSmaInfoBySuid(pSma, suid);
   if (!pRSmaInfo) {
     smaDebug("vgId:%d, execute rsma, no rsma info for suid:%" PRIu64, SMA_VID(pSma), suid);
     return TSDB_CODE_SUCCESS;
   }
 
-  if (!pRSmaInfo->items[0].taskInfo) {
+  if (!RSMA_INFO_QTASK(pRSmaInfo, 0)) {
+    tdReleaseRSmaInfo(pSma, pRSmaInfo);
     smaDebug("vgId:%d, execute rsma, no rsma qTaskInfo for suid:%" PRIu64, SMA_VID(pSma), suid);
     return TSDB_CODE_SUCCESS;
   }
 
   if (inputType == STREAM_INPUT__DATA_SUBMIT) {
-    tdRefRSmaInfo(pSma, pRSmaInfo);
-
-    tdExecuteRSmaImpl(pSma, pMsg, inputType, &pRSmaInfo->items[0], pRSmaInfo->pTSchema, suid, TSDB_RETENTION_L1);
-    tdExecuteRSmaImpl(pSma, pMsg, inputType, &pRSmaInfo->items[1], pRSmaInfo->pTSchema, suid, TSDB_RETENTION_L2);
-
-    tdUnRefRSmaInfo(pSma, pRSmaInfo);
+    tdExecuteRSmaImpl(pSma, pMsg, inputType, pRSmaInfo, suid, TSDB_RETENTION_L1);
+    tdExecuteRSmaImpl(pSma, pMsg, inputType, pRSmaInfo, suid, TSDB_RETENTION_L2);
   }
 
+  tdReleaseRSmaInfo(pSma, pRSmaInfo);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -990,26 +1022,28 @@ static int32_t tdRSmaQTaskInfoItemRestore(SSma *pSma, const SRSmaQTaskInfoItem *
   SRSmaInfo *pRSmaInfo = NULL;
   void      *qTaskInfo = NULL;
 
-  pRSmaInfo = tdGetRSmaInfoBySuid(pSma, pItem->suid);
+  pRSmaInfo = tdAcquireRSmaInfoBySuid(pSma, pItem->suid);
   if (!pRSmaInfo) {
     smaDebug("vgId:%d, no restore as no rsma info for table:%" PRIu64, SMA_VID(pSma), pItem->suid);
     return TSDB_CODE_SUCCESS;
   }
 
   if (pItem->type == TSDB_RETENTION_L1) {
-    qTaskInfo = pRSmaInfo->items[0].taskInfo;
+    qTaskInfo = RSMA_INFO_QTASK(pRSmaInfo, 0);
   } else if (pItem->type == TSDB_RETENTION_L2) {
-    qTaskInfo = pRSmaInfo->items[1].taskInfo;
+    qTaskInfo = RSMA_INFO_QTASK(pRSmaInfo, 1);
   } else {
     ASSERT(0);
   }
 
   if (!qTaskInfo) {
+    tdReleaseRSmaInfo(pSma, pRSmaInfo);
     smaDebug("vgId:%d, no restore as NULL rsma qTaskInfo for table:%" PRIu64, SMA_VID(pSma), pItem->suid);
     return TSDB_CODE_SUCCESS;
   }
 
   if (qDeserializeTaskStatus(qTaskInfo, pItem->qTaskInfo, pItem->len) < 0) {
+    tdReleaseRSmaInfo(pSma, pRSmaInfo);
     smaError("vgId:%d, restore rsma task failed for table:%" PRIi64 " level %d since %s", SMA_VID(pSma), pItem->suid,
              pItem->type, terrstr());
     return TSDB_CODE_FAILED;
@@ -1017,6 +1051,7 @@ static int32_t tdRSmaQTaskInfoItemRestore(SSma *pSma, const SRSmaQTaskInfoItem *
   smaDebug("vgId:%d, restore rsma task success for table:%" PRIi64 " level %d", SMA_VID(pSma), pItem->suid,
            pItem->type);
 
+  tdReleaseRSmaInfo(pSma, pRSmaInfo);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -1195,8 +1230,14 @@ int32_t tdRSmaPersistExecImpl(SRSmaStat *pRSmaStat, SHashObj *pInfoHash) {
 
   while (infoHash) {
     SRSmaInfo *pRSmaInfo = *(SRSmaInfo **)infoHash;
+
+    if (RSMA_INFO_IS_DEL(pRSmaInfo)) {
+      infoHash = taosHashIterate(pInfoHash, infoHash);
+      continue;
+    }
+
     for (int32_t i = 0; i < TSDB_RETENTION_L2; ++i) {
-      qTaskInfo_t taskInfo = pRSmaInfo->items[i].taskInfo;
+      qTaskInfo_t taskInfo = RSMA_INFO_QTASK(pRSmaInfo, i);
       if (!taskInfo) {
         smaDebug("vgId:%d, rsma, table %" PRIi64 " level %d qTaskInfo is NULL", vid, pRSmaInfo->suid, i + 1);
         continue;
@@ -1290,11 +1331,17 @@ _err:
 static void tdRSmaFetchTrigger(void *param, void *tmrId) {
   SRSmaInfoItem *pItem = param;
   SSma          *pSma = NULL;
-  SRSmaStat     *pStat = (SRSmaStat *)tdAcquireSmaRef(smaMgmt.rsetId, pItem->refId, __func__, __LINE__);
+  SRSmaInfo     *pRSmaInfo = tdGetRSmaInfoByItem(pItem);
+
+  if (RSMA_INFO_IS_DEL(pRSmaInfo)) {
+    return;
+  }
+
+  SRSmaStat *pStat = (SRSmaStat *)tdAcquireSmaRef(smaMgmt.rsetId, pRSmaInfo->refId);
 
   if (!pStat) {
     smaDebug("rsma fetch task not start since already destroyed, rsetId rsetId:%" PRIi64 " refId:%d)", smaMgmt.rsetId,
-             pItem->refId);
+             pRSmaInfo->refId);
     return;
   }
 
@@ -1305,10 +1352,10 @@ static void tdRSmaFetchTrigger(void *param, void *tmrId) {
   switch (rsmaTriggerStat) {
     case TASK_TRIGGER_STAT_PAUSED:
     case TASK_TRIGGER_STAT_CANCELLED: {
-      tdReleaseSmaRef(smaMgmt.rsetId, pItem->refId, __func__, __LINE__);
+      tdReleaseSmaRef(smaMgmt.rsetId, pRSmaInfo->refId);
       smaDebug("vgId:%d, not fetch rsma level %" PRIi8 " data since stat is %" PRIi8 ", rsetId rsetId:%" PRIi64
                " refId:%d",
-               SMA_VID(pSma), pItem->level, rsmaTriggerStat, smaMgmt.rsetId, pItem->refId);
+               SMA_VID(pSma), pItem->level, rsmaTriggerStat, smaMgmt.rsetId, pRSmaInfo->refId);
       if (rsmaTriggerStat == TASK_TRIGGER_STAT_PAUSED) {
         taosTmrReset(tdRSmaFetchTrigger, pItem->maxDelay > 5000 ? 5000 : pItem->maxDelay, pItem, smaMgmt.tmrHandle,
                      &pItem->tmrId);
@@ -1319,11 +1366,6 @@ static void tdRSmaFetchTrigger(void *param, void *tmrId) {
       break;
   }
 
-  SRSmaInfo *pRSmaInfo = tdGetRSmaInfoByItem(pItem);
-  if (RSMA_INFO_IS_DEL(pRSmaInfo)) {
-    goto _end;
-  }
-
   int8_t fetchTriggerStat =
       atomic_val_compare_exchange_8(&pItem->triggerStat, TASK_TRIGGER_STAT_ACTIVE, TASK_TRIGGER_STAT_INACTIVE);
   switch (fetchTriggerStat) {
@@ -1332,16 +1374,14 @@ static void tdRSmaFetchTrigger(void *param, void *tmrId) {
                pItem->level, pRSmaInfo->suid);
 
       // sync procedure => async process
-      tdRefRSmaInfo(pSma, pRSmaInfo);
 
       SSDataBlock dataBlock = {.info.type = STREAM_GET_ALL};
-      qSetMultiStreamInput(pItem->taskInfo, &dataBlock, 1, STREAM_INPUT__DATA_BLOCK);
-      tdRSmaFetchAndSubmitResult(pItem, pRSmaInfo->pTSchema, pRSmaInfo->suid, pStat, STREAM_INPUT__DATA_BLOCK);
-      tdCleanupStreamInputDataBlock(pItem->taskInfo);
+      qTaskInfo_t taskInfo = pRSmaInfo->taskInfo[pItem->level - 1];
+      qSetMultiStreamInput(taskInfo, &dataBlock, 1, STREAM_INPUT__DATA_BLOCK);
+      tdRSmaFetchAndSubmitResult(taskInfo, pItem, pRSmaInfo->pTSchema, pRSmaInfo->suid, pStat,
+                                 STREAM_INPUT__DATA_BLOCK);
+      tdCleanupStreamInputDataBlock(taskInfo);
 
-      tdUnRefRSmaInfo(pSma, pRSmaInfo);
-      // atomic_store_8(&pItem->triggerStat, TASK_TRIGGER_STAT_ACTIVE);
-      // taosTmrReset(tdRSmaFetchTrigger, 5000, pItem, smaMgmt.tmrHandle, &pItem->tmrId);
     } break;
     case TASK_TRIGGER_STAT_PAUSED: {
       smaDebug("vgId:%d, not fetch rsma level %" PRIi8 " data for table:%" PRIi64 " since stat is paused",
@@ -1362,22 +1402,5 @@ static void tdRSmaFetchTrigger(void *param, void *tmrId) {
   }
 
 _end:
-  tdReleaseSmaRef(smaMgmt.rsetId, pItem->refId, __func__, __LINE__);
+  tdReleaseSmaRef(smaMgmt.rsetId, pRSmaInfo->refId);
 }
-
-int32_t smaDoRetention(SSma *pSma, int64_t now) {
-  int32_t code = TSDB_CODE_SUCCESS;
-  if (VND_IS_RSMA(pSma->pVnode)) {
-    return code;
-  }
-
-  for (int32_t i = 0; i < TSDB_RETENTION_L2; ++i) {
-    if (pSma->pRSmaTsdb[i]) {
-      code = tsdbDoRetention(pSma->pRSmaTsdb[i], now);
-      if (code) goto _end;
-    }
-  }
-
-_end:
-  return code;
-}
\ No newline at end of file
diff --git a/source/dnode/vnode/src/sma/smaTimeRange.c b/source/dnode/vnode/src/sma/smaTimeRange.c
index 6d71f3a250f4b02ae9d1acc2c5b11e5cf8721c56..7f69acc8895df7c921126b368a0cbb092d58daec 100644
--- a/source/dnode/vnode/src/sma/smaTimeRange.c
+++ b/source/dnode/vnode/src/sma/smaTimeRange.c
@@ -116,8 +116,10 @@ int32_t tdProcessTSmaCreateImpl(SSma *pSma, int64_t version, const char *pMsg) {
     }
 
     // create stable to save tsma result in dstVgId
+    SName stbFullName = {0};
+    tNameFromString(&stbFullName, pCfg->dstTbName, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);
     SVCreateStbReq pReq = {0};
-    pReq.name = pCfg->dstTbName;
+    pReq.name = (char*)tNameGetTableName(&stbFullName);
     pReq.suid = pCfg->dstTbUid;
     pReq.schemaRow = pCfg->schemaRow;
     pReq.schemaTag = pCfg->schemaTag;
@@ -125,6 +127,12 @@ int32_t tdProcessTSmaCreateImpl(SSma *pSma, int64_t version, const char *pMsg) {
     if (metaCreateSTable(SMA_META(pSma), version, &pReq) < 0) {
       return -1;
     }
+
+    smaDebug("vgId:%d, success to create sma index %s %" PRIi64 " on stb:%" PRIi64 ", dstSuid:%" PRIi64
+             " dstTb:%s dstVg:%d",
+             SMA_VID(pSma), pCfg->indexName, pCfg->indexUid, pCfg->tableUid, pCfg->dstTbUid, pReq.name, pCfg->dstVgId);
+  } else {
+    ASSERT(0);
   }
 
   return 0;
diff --git a/source/dnode/vnode/src/sma/smaUtil.c b/source/dnode/vnode/src/sma/smaUtil.c
index 9dce166afa8fd43e349b446f1f1f04a05c761b7a..d9f38ffd090fffcb6cf110265f1d2929714da669 100644
--- a/source/dnode/vnode/src/sma/smaUtil.c
+++ b/source/dnode/vnode/src/sma/smaUtil.c
@@ -287,22 +287,22 @@ int32_t tdRemoveTFile(STFile *pTFile) {
 }
 
 // smaXXXUtil ================
-void *tdAcquireSmaRef(int32_t rsetId, int64_t refId, const char *tags, int32_t ln) {
+void *tdAcquireSmaRef(int32_t rsetId, int64_t refId) {
   void *pResult = taosAcquireRef(rsetId, refId);
   if (!pResult) {
-    smaWarn("%s:%d taosAcquireRef for rsetId:%" PRIi64 " refId:%d failed since %s", tags, ln, rsetId, refId, terrstr());
+    smaWarn("rsma acquire ref for rsetId:%" PRIi64 " refId:%d failed since %s", rsetId, refId, terrstr());
   } else {
-    smaDebug("%s:%d taosAcquireRef for rsetId:%" PRIi64 " refId:%d success", tags, ln, rsetId, refId);
+    smaDebug("rsma acquire ref for rsetId:%" PRIi64 " refId:%d success", rsetId, refId);
   }
   return pResult;
 }
 
-int32_t tdReleaseSmaRef(int32_t rsetId, int64_t refId, const char *tags, int32_t ln) {
+int32_t tdReleaseSmaRef(int32_t rsetId, int64_t refId) {
   if (taosReleaseRef(rsetId, refId) < 0) {
-    smaWarn("%s:%d taosReleaseRef for rsetId:%" PRIi64 " refId:%d failed since %s", tags, ln, rsetId, refId, terrstr());
+    smaWarn("rsma release ref for rsetId:%" PRIi64 " refId:%d failed since %s", rsetId, refId, terrstr());
     return TSDB_CODE_FAILED;
   }
-  smaDebug("%s:%d taosReleaseRef for rsetId:%" PRIi64 " refId:%d success", tags, ln, rsetId, refId);
+  smaDebug("rsma release ref for rsetId:%" PRIi64 " refId:%d success", rsetId, refId);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -313,7 +313,7 @@ static int32_t tdCloneQTaskInfo(SSma *pSma, qTaskInfo_t dstTaskInfo, qTaskInfo_t
   char   *pOutput = NULL;
   int32_t len = 0;
 
-  if (qSerializeTaskStatus(srcTaskInfo, &pOutput, &len) < 0) {
+  if ((terrno = qSerializeTaskStatus(srcTaskInfo, &pOutput, &len)) < 0) {
     smaError("vgId:%d, rsma clone, table %" PRIi64 " serialize qTaskInfo failed since %s", TD_VID(pVnode), suid,
              terrstr());
     goto _err;
@@ -337,41 +337,34 @@ static int32_t tdCloneQTaskInfo(SSma *pSma, qTaskInfo_t dstTaskInfo, qTaskInfo_t
     goto _err;
   }
 
-  smaError("vgId:%d, rsma clone, restore rsma task for table:%" PRIi64 " succeed", TD_VID(pVnode), suid);
+  smaDebug("vgId:%d, rsma clone, restore rsma task for table:%" PRIi64 " succeed", TD_VID(pVnode), suid);
 
   taosMemoryFreeClear(pOutput);
   return TSDB_CODE_SUCCESS;
 _err:
   taosMemoryFreeClear(pOutput);
   tdFreeQTaskInfo(dstTaskInfo, TD_VID(pVnode), idx + 1);
+  smaError("vgId:%d, rsma clone, restore rsma task for table:%" PRIi64 " failed since %s", TD_VID(pVnode), suid,
+           terrstr());
   return TSDB_CODE_FAILED;
 }
 
 /**
  * @brief pTSchema is shared
- * 
- * @param pSma 
- * @param pDest 
- * @param pSrc 
- * @return int32_t 
+ *
+ * @param pSma
+ * @param pDest
+ * @param pSrc
+ * @return int32_t
  */
-int32_t tdCloneRSmaInfo(SSma *pSma, SRSmaInfo *pDest, SRSmaInfo *pSrc) {
+int32_t tdCloneRSmaInfo(SSma *pSma, SRSmaInfo **pDest, SRSmaInfo *pSrc) {
   SVnode     *pVnode = pSma->pVnode;
   SRSmaParam *param = NULL;
   if (!pSrc) {
+    *pDest = NULL;
     return TSDB_CODE_SUCCESS;
   }
 
-  if (!pDest) {
-    pDest = taosMemoryCalloc(1, sizeof(SRSmaInfo));
-    if (!pDest) {
-      terrno = TSDB_CODE_OUT_OF_MEMORY;
-      return TSDB_CODE_FAILED;
-    }
-  }
-
-  memcpy(pDest, pSrc, sizeof(SRSmaInfo));
-
   SMetaReader mr = {0};
   metaReaderInit(&mr, SMA_META(pSma), 0);
   smaDebug("vgId:%d, rsma clone, suid is %" PRIi64, TD_VID(pVnode), pSrc->suid);
@@ -384,21 +377,22 @@ int32_t tdCloneRSmaInfo(SSma *pSma, SRSmaInfo *pDest, SRSmaInfo *pSrc) {
   ASSERT(mr.me.uid == pSrc->suid);
   if (TABLE_IS_ROLLUP(mr.me.flags)) {
     param = &mr.me.stbEntry.rsmaParam;
-    for (int i = 0; i < TSDB_RETENTION_L2; ++i) {
-      SRSmaInfoItem *pItem = &pSrc->items[i];
-      if (pItem->taskInfo) {
-        tdCloneQTaskInfo(pSma, pDest->items[i].taskInfo, pItem->taskInfo, param, pSrc->suid, i);
+    for (int32_t i = 0; i < TSDB_RETENTION_L2; ++i) {
+      if (tdCloneQTaskInfo(pSma, pSrc->iTaskInfo[i], pSrc->taskInfo[i], param, pSrc->suid, i) < 0) {
+        goto _err;
       }
     }
     smaDebug("vgId:%d, rsma clone env success for %" PRIi64, TD_VID(pVnode), pSrc->suid);
   }
 
   metaReaderClear(&mr);
+
+  *pDest = pSrc;  // pointer copy
+
   return TSDB_CODE_SUCCESS;
 _err:
+  *pDest = NULL;
   metaReaderClear(&mr);
-  tdFreeRSmaInfo(pSma, pDest, false);
+  smaError("vgId:%d, rsma clone env failed for %" PRIi64 " since %s", TD_VID(pVnode), pSrc->suid, terrstr());
   return TSDB_CODE_FAILED;
-}
-
-// ...
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 62e37f048edcaea1710db79418bf77697f252c5d..c1c680fc56df0ff76f5c1c9c13897bfd233cf34c 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -62,8 +62,6 @@ STQ* tqOpen(const char* path, SVnode* pVnode) {
 
   pTq->handles = taosHashInit(64, MurmurHash3_32, true, HASH_ENTRY_LOCK);
 
-  pTq->pStreamTasks = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
-
   pTq->pushMgr = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, HASH_ENTRY_LOCK);
 
   pTq->pAlterInfo = taosHashInit(64, MurmurHash3_32, true, HASH_ENTRY_LOCK);
@@ -76,6 +74,11 @@ STQ* tqOpen(const char* path, SVnode* pVnode) {
     ASSERT(0);
   }
 
+  pTq->pStreamMeta = streamMetaOpen(path, pTq, (FTaskExpand*)tqExpandTask);
+  if (pTq->pStreamMeta == NULL) {
+    ASSERT(0);
+  }
+
   return pTq;
 }
 
@@ -83,18 +86,11 @@ void tqClose(STQ* pTq) {
   if (pTq) {
     tqOffsetClose(pTq->pOffsetStore);
     taosHashCleanup(pTq->handles);
-    void* pIter = NULL;
-    while (1) {
-      pIter = taosHashIterate(pTq->pStreamTasks, pIter);
-      if (pIter == NULL) break;
-      SStreamTask* pTask = *(SStreamTask**)pIter;
-      tFreeSStreamTask(pTask);
-    }
-    taosHashCleanup(pTq->pStreamTasks);
     taosHashCleanup(pTq->pushMgr);
     taosHashCleanup(pTq->pAlterInfo);
     taosMemoryFree(pTq->path);
     tqMetaClose(pTq);
+    streamMetaClose(pTq->pStreamMeta);
     taosMemoryFree(pTq);
   }
 }
@@ -672,6 +668,9 @@ FAIL:
 }
 
 int32_t tqProcessTaskDeployReq(STQ* pTq, char* msg, int32_t msgLen) {
+  //
+  return streamMetaAddSerializedTask(pTq->pStreamMeta, msg, msgLen);
+#if 0
   SStreamTask* pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
   if (pTask == NULL) {
     return -1;
@@ -695,6 +694,7 @@ int32_t tqProcessTaskDeployReq(STQ* pTq, char* msg, int32_t msgLen) {
 FAIL:
   if (pTask) taosMemoryFree(pTask);
   return -1;
+#endif
 }
 
 int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* pReq, int64_t ver) {
@@ -710,7 +710,7 @@ int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* pReq, int64_t ver) {
   }
 
   while (1) {
-    pIter = taosHashIterate(pTq->pStreamTasks, pIter);
+    pIter = taosHashIterate(pTq->pStreamMeta->pTasks, pIter);
     if (pIter == NULL) break;
     SStreamTask* pTask = *(SStreamTask**)pIter;
     if (pTask->taskLevel != TASK_LEVEL__SOURCE) continue;
@@ -744,9 +744,9 @@ int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg) {
   //
   SStreamTaskRunReq* pReq = pMsg->pCont;
   int32_t            taskId = pReq->taskId;
-  SStreamTask**      ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
-    streamProcessRunReq(*ppTask);
+  SStreamTask*       pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
+    streamProcessRunReq(pTask);
     return 0;
   } else {
     return -1;
@@ -762,14 +762,15 @@ int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg, bool exec) {
   SDecoder           decoder;
   tDecoderInit(&decoder, (uint8_t*)msgBody, msgLen);
   tDecodeStreamDispatchReq(&decoder, &req);
-  int32_t       taskId = req.taskId;
-  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
+  int32_t taskId = req.taskId;
+
+  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
-    streamProcessDispatchReq(*ppTask, &req, &rsp, exec);
+    streamProcessDispatchReq(pTask, &req, &rsp, exec);
     return 0;
   } else {
     return -1;
@@ -779,9 +780,9 @@ int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg, bool exec) {
 int32_t tqProcessTaskRecoverReq(STQ* pTq, SRpcMsg* pMsg) {
   SStreamTaskRecoverReq* pReq = pMsg->pCont;
   int32_t                taskId = pReq->taskId;
-  SStreamTask**          ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
-    streamProcessRecoverReq(*ppTask, pReq, pMsg);
+  SStreamTask*           pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
+    streamProcessRecoverReq(pTask, pReq, pMsg);
     return 0;
   } else {
     return -1;
@@ -791,9 +792,9 @@ int32_t tqProcessTaskRecoverReq(STQ* pTq, SRpcMsg* pMsg) {
 int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
   SStreamDispatchRsp* pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
   int32_t             taskId = pRsp->taskId;
-  SStreamTask**       ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
-    streamProcessDispatchRsp(*ppTask, pRsp);
+  SStreamTask*        pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
+    streamProcessDispatchRsp(pTask, pRsp);
     return 0;
   } else {
     return -1;
@@ -803,9 +804,10 @@ int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
 int32_t tqProcessTaskRecoverRsp(STQ* pTq, SRpcMsg* pMsg) {
   SStreamTaskRecoverRsp* pRsp = pMsg->pCont;
   int32_t                taskId = pRsp->rspTaskId;
-  SStreamTask**          ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
-    streamProcessRecoverRsp(*ppTask, pRsp);
+
+  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
+    streamProcessRecoverRsp(pTask, pRsp);
     return 0;
   } else {
     return -1;
@@ -815,18 +817,7 @@ int32_t tqProcessTaskRecoverRsp(STQ* pTq, SRpcMsg* pMsg) {
 int32_t tqProcessTaskDropReq(STQ* pTq, char* msg, int32_t msgLen) {
   SVDropStreamTaskReq* pReq = (SVDropStreamTaskReq*)msg;
 
-  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &pReq->taskId, sizeof(int32_t));
-  if (ppTask) {
-    SStreamTask* pTask = *ppTask;
-    taosHashRemove(pTq->pStreamTasks, &pReq->taskId, sizeof(int32_t));
-    atomic_store_8(&pTask->taskStatus, TASK_STATUS__DROPPING);
-  }
-  // todo
-  // clear queue
-  // push drop req into queue
-  // launch exec to free memory
-  // remove from hash
-  return 0;
+  return streamMetaRemoveTask(pTq->pStreamMeta, pReq->taskId);
 }
 
 int32_t tqProcessTaskRetrieveReq(STQ* pTq, SRpcMsg* pMsg) {
@@ -837,18 +828,18 @@ int32_t tqProcessTaskRetrieveReq(STQ* pTq, SRpcMsg* pMsg) {
   SDecoder           decoder;
   tDecoderInit(&decoder, msgBody, msgLen);
   tDecodeStreamRetrieveReq(&decoder, &req);
-  int32_t       taskId = req.dstTaskId;
-  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
+  int32_t      taskId = req.dstTaskId;
+  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
-    streamProcessRetrieveReq(*ppTask, &req, &rsp);
+    streamProcessRetrieveReq(pTask, &req, &rsp);
+    return 0;
   } else {
     return -1;
   }
-  return 0;
 }
 
 int32_t tqProcessTaskRetrieveRsp(STQ* pTq, SRpcMsg* pMsg) {
@@ -871,16 +862,18 @@ void vnodeEnqueueStreamMsg(SVnode* pVnode, SRpcMsg* pMsg) {
     goto FAIL;
   }
 
-  int32_t       taskId = req.taskId;
-  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  if (ppTask) {
+  int32_t taskId = req.taskId;
+
+  SStreamTask* pTask = streamMetaGetTask(pTq->pStreamMeta, taskId);
+  if (pTask) {
     SRpcMsg rsp = {
         .info = pMsg->info,
         .code = 0,
     };
-    streamProcessDispatchReq(*ppTask, &req, &rsp, false);
+    streamProcessDispatchReq(pTask, &req, &rsp, false);
     return;
   }
+
 FAIL:
   if (pMsg->info.handle == NULL) return;
   SRpcMsg rsp = {
diff --git a/source/dnode/vnode/src/tq/tqPush.c b/source/dnode/vnode/src/tq/tqPush.c
index 1c48ef7535993eff1aea41e121923f11ae19b7c7..ae3fef9b4b7ebf02654e93e09b5bf6c52f6e2354 100644
--- a/source/dnode/vnode/src/tq/tqPush.c
+++ b/source/dnode/vnode/src/tq/tqPush.c
@@ -215,7 +215,7 @@ int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver)
   walApplyVer(pTq->pVnode->pWal, ver);
 
   if (msgType == TDMT_VND_SUBMIT) {
-    if (taosHashGetSize(pTq->pStreamTasks) == 0) return 0;
+    if (taosHashGetSize(pTq->pStreamMeta->pTasks) == 0) return 0;
 
     void* data = taosMemoryMalloc(msgLen);
     if (data == NULL) {
diff --git a/source/dnode/vnode/src/tq/tqRead.c b/source/dnode/vnode/src/tq/tqRead.c
index 501789385323d84e1c97c7443472335930381ca4..6ce8dbe5d90e5d7448a9be03cb42eaf27c3f9bff 100644
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@@ -413,7 +413,7 @@ int32_t tqUpdateTbUidList(STQ* pTq, const SArray* tbUidList, bool isAdd) {
     }
   }
   while (1) {
-    pIter = taosHashIterate(pTq->pStreamTasks, pIter);
+    pIter = taosHashIterate(pTq->pStreamMeta->pTasks, pIter);
     if (pIter == NULL) break;
     SStreamTask* pTask = *(SStreamTask**)pIter;
     if (pTask->taskLevel == TASK_LEVEL__SOURCE) {
diff --git a/source/dnode/vnode/src/tsdb/tsdbSnapshot.c b/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
index a9f07cbf24f062f367919f05949cf10a8fe8a50c..c40fb98d62b8dd6b1a76c1f6ec2fd870cbff3624 100644
--- a/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
+++ b/source/dnode/vnode/src/tsdb/tsdbSnapshot.c
@@ -115,12 +115,19 @@ static int32_t tsdbSnapReadData(STsdbSnapReader* pReader, uint8_t** ppData) {
           TSDBROW row = tsdbRowFromBlockData(&pReader->oBlockData, iRow);
           int64_t version = TSDBROW_VERSION(&row);
 
+          tsdbTrace("vgId:%d, vnode snapshot tsdb read for %s, %" PRId64 "(%" PRId64 " , %" PRId64 ")",
+                    TD_VID(pReader->pTsdb->pVnode), pReader->pTsdb->path, version, pReader->sver, pReader->ever);
+
           if (version < pReader->sver || version > pReader->ever) continue;
 
           code = tBlockDataAppendRow(&pReader->nBlockData, &row, NULL);
           if (code) goto _err;
         }
 
+        if (pReader->nBlockData.nRow <= 0) {
+          continue;
+        }
+
         // org data
         // compress data (todo)
         int32_t size = sizeof(TABLEID) + tPutBlockData(NULL, &pReader->nBlockData);
@@ -808,7 +815,8 @@ static int32_t tsdbSnapWriteTableData(STsdbSnapWriter* pWriter, TABLEID id) {
   if (code) goto _err;
 
 _exit:
-  tsdbDebug("vgId:%d, vnode snapshot tsdb write data impl for %s", TD_VID(pWriter->pTsdb->pVnode), pWriter->pTsdb->path);
+  tsdbDebug("vgId:%d, vnode snapshot tsdb write data impl for %s", TD_VID(pWriter->pTsdb->pVnode),
+            pWriter->pTsdb->path);
   return code;
 
 _err:
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index fbbe5bc69555c75c67813f589ed12a1932dba827..15cf183b2ad5cea0706388d3c3ee92e0911319b0 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -351,7 +351,6 @@ int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
 // TODO: remove the function
 void smaHandleRes(void *pVnode, int64_t smaId, const SArray *data) {
   // TODO
-
   blockDebugShowDataBlocks(data, __func__);
   tdProcessTSmaInsert(((SVnode *)pVnode)->pSma, smaId, (const char *)data);
 }
@@ -852,6 +851,7 @@ static int32_t vnodeProcessSubmitReq(SVnode *pVnode, int64_t version, void *pReq
       if (metaCreateTable(pVnode->pMeta, version, &createTbReq) < 0) {
         if (terrno != TSDB_CODE_TDB_TABLE_ALREADY_EXIST) {
           submitBlkRsp.code = terrno;
+          pRsp->code = terrno;
           tDecoderClear(&decoder);
           taosArrayDestroy(createTbReq.ctb.tagName);
           goto _exit;
diff --git a/source/dnode/vnode/src/vnd/vnodeSync.c b/source/dnode/vnode/src/vnd/vnodeSync.c
index a269f81ddd73cb9c29ae4900c1ab319cf03af764..50ca81e58bad7e9d629f66e0069f9c51e8b7fcae 100644
--- a/source/dnode/vnode/src/vnd/vnodeSync.c
+++ b/source/dnode/vnode/src/vnd/vnodeSync.c
@@ -722,10 +722,12 @@ void vnodeSyncClose(SVnode *pVnode) { syncStop(pVnode->sync); }
 
 bool vnodeIsLeader(SVnode *pVnode) {
   if (!syncIsReady(pVnode->sync)) {
+    vDebug("vgId:%d, vnode not ready", pVnode->config.vgId);
     return false;
   }
 
   if (!pVnode->restored) {
+    vDebug("vgId:%d, vnode not restored", pVnode->config.vgId);
     terrno = TSDB_CODE_APP_NOT_READY;
     return false;
   }
diff --git a/source/libs/catalog/src/ctgRemote.c b/source/libs/catalog/src/ctgRemote.c
index a9f2d426bc4c193e2eac8d29a311b9190f3c1ab4..45f97865ce55f11508f6f67fc68dae864f476dd7 100644
--- a/source/libs/catalog/src/ctgRemote.c
+++ b/source/libs/catalog/src/ctgRemote.c
@@ -467,6 +467,7 @@ int32_t ctgAddBatch(SCatalog* pCtg, int32_t vgId, SRequestConnInfo* pConn, SCtgT
     if (NULL == taosArrayPush(newBatch.pMsgs, &req)) {
       CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
     }
+    msg = NULL;
     if (NULL == taosArrayPush(newBatch.pTaskIds, &pTask->taskId)) {
       CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
     }
@@ -517,6 +518,7 @@ int32_t ctgAddBatch(SCatalog* pCtg, int32_t vgId, SRequestConnInfo* pConn, SCtgT
   if (NULL == taosArrayPush(pBatch->pMsgs, &req)) {
     CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
   }
+  msg = NULL;  
   if (NULL == taosArrayPush(pBatch->pTaskIds, &pTask->taskId)) {
     CTG_ERR_JRET(TSDB_CODE_OUT_OF_MEMORY);
   }
@@ -545,7 +547,7 @@ int32_t ctgAddBatch(SCatalog* pCtg, int32_t vgId, SRequestConnInfo* pConn, SCtgT
       CTG_ERR_JRET(TSDB_CODE_APP_ERROR);
     }
 
-    tNameGetFullDbName(pName, newBatch.dbFName);    
+    tNameGetFullDbName(pName, pBatch->dbFName);    
   }
 
   ctgDebug("task %d %s req added to batch %d, target vgId %d", pTask->taskId, TMSG_INFO(msgType), pBatch->batchId,
diff --git a/source/libs/catalog/src/ctgUtil.c b/source/libs/catalog/src/ctgUtil.c
index 8e5fb90f1a09cd8e8de5d5bbff0532ba4bc4a8f5..1ca60c89cd96937ed4844fecfdbe78057c368d9f 100644
--- a/source/libs/catalog/src/ctgUtil.c
+++ b/source/libs/catalog/src/ctgUtil.c
@@ -438,6 +438,14 @@ void ctgFreeMsgCtx(SCtgMsgCtx* pCtx) {
   }
 }
 
+void ctgFreeTbMetasMsgCtx(SCtgMsgCtx* pCtx) {
+  ctgFreeMsgCtx(pCtx);
+  if (pCtx->lastOut) {
+    ctgFreeSTableMetaOutput((STableMetaOutput*)pCtx->lastOut);
+    pCtx->lastOut = NULL;
+  }
+}
+
 void ctgFreeSTableMetaOutput(STableMetaOutput* pOutput) {
   if (NULL == pOutput) {
     return;
@@ -641,7 +649,7 @@ void ctgFreeTaskCtx(SCtgTask* pTask) {
       taosArrayDestroy(taskCtx->pFetchs);
       // NO NEED TO FREE pNames
 
-      taosArrayDestroyEx(pTask->msgCtxs, (FDelete)ctgFreeMsgCtx);
+      taosArrayDestroyEx(pTask->msgCtxs, (FDelete)ctgFreeTbMetasMsgCtx);
       
       if (pTask->msgCtx.lastOut) {
         ctgFreeSTableMetaOutput((STableMetaOutput*)pTask->msgCtx.lastOut);
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index 3a61661c5ac90577dca54c6f55a1b36a918594ac..7e777997020e371772f5db450be23b61304a5d25 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -1437,7 +1437,8 @@ static void setExecutionContext(SOperatorInfo* pOperator, int32_t numOfOutput, u
   pAggInfo->groupId = groupId;
 }
 
-static void doUpdateNumOfRows(SResultRow* pRow, int32_t numOfExprs, const int32_t* rowCellOffset) {
+static void doUpdateNumOfRows(SqlFunctionCtx* pCtx, SResultRow* pRow, int32_t numOfExprs, const int32_t* rowCellOffset) {
+  bool returnNotNull = false;
   for (int32_t j = 0; j < numOfExprs; ++j) {
     struct SResultRowEntryInfo* pResInfo = getResultEntryInfo(pRow, j, rowCellOffset);
     if (!isRowEntryInitialized(pResInfo)) {
@@ -1447,6 +1448,15 @@ static void doUpdateNumOfRows(SResultRow* pRow, int32_t numOfExprs, const int32_
     if (pRow->numOfRows < pResInfo->numOfRes) {
       pRow->numOfRows = pResInfo->numOfRes;
     }
+
+    if (fmIsNotNullOutputFunc(pCtx[j].functionId)) {
+      returnNotNull = true;
+    }
+  }
+  // if all expr skips all blocks, e.g. all null inputs for max function, output one row in final result.
+  //  except for first/last, which require not null output, output no rows
+  if (pRow->numOfRows == 0 && !returnNotNull) {
+    pRow->numOfRows = 1;
   }
 }
 
@@ -1458,7 +1468,7 @@ int32_t finalizeResultRowIntoResultDataBlock(SDiskbasedBuf* pBuf, SResultRowPosi
   SFilePage*  page = getBufPage(pBuf, resultRowPosition->pageId);
   SResultRow* pRow = (SResultRow*)((char*)page + resultRowPosition->offset);
 
-  doUpdateNumOfRows(pRow, numOfExprs, rowCellOffset);
+  doUpdateNumOfRows(pCtx, pRow, numOfExprs, rowCellOffset);
   if (pRow->numOfRows == 0) {
     releaseBufPage(pBuf, page);
     return 0;
@@ -1514,7 +1524,7 @@ int32_t doCopyToSDataBlock(SExecTaskInfo* pTaskInfo, SSDataBlock* pBlock, SExprI
 
     SResultRow* pRow = (SResultRow*)((char*)page + pPos->pos.offset);
 
-    doUpdateNumOfRows(pRow, numOfExprs, rowCellOffset);
+    doUpdateNumOfRows(pCtx, pRow, numOfExprs, rowCellOffset);
     if (pRow->numOfRows == 0) {
       pGroupResInfo->index += 1;
       releaseBufPage(pBuf, page);
diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index e78a78e7d88e4949d41557200bb1342fc0439b02..e3e98a6895aa19e38f8ac67c59dcb8d7953099da 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -64,6 +64,9 @@ typedef struct SMinmaxResInfo {
   bool      assign;  // assign the first value or not
   int64_t   v;
   STuplePos tuplePos;
+
+  STuplePos nullTuplePos;
+  bool      nullTupleSaved;
 } SMinmaxResInfo;
 
 typedef struct STopBotResItem {
@@ -75,6 +78,10 @@ typedef struct STopBotResItem {
 typedef struct STopBotRes {
   int32_t         maxSize;
   int16_t         type;
+
+  STuplePos       nullTuplePos;
+  bool            nullTupleSaved;
+
   STopBotResItem* pItems;
 } STopBotRes;
 
@@ -221,6 +228,10 @@ typedef struct SSampleInfo {
   int32_t    numSampled;
   uint8_t    colType;
   int16_t    colBytes;
+
+  STuplePos  nullTuplePos;
+  bool       nullTupleSaved;
+
   char*      data;
   STuplePos* tuplePos;
 } SSampleInfo;
@@ -1134,6 +1145,9 @@ bool minmaxFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo)
   SMinmaxResInfo* buf = GET_ROWCELL_INTERBUF(pResultInfo);
   buf->assign = false;
   buf->tuplePos.pageId = -1;
+
+  buf->nullTupleSaved = false;
+  buf->nullTuplePos.pageId = -1;
   return true;
 }
 
@@ -1575,6 +1589,10 @@ int32_t doMinMaxHelper(SqlFunctionCtx* pCtx, int32_t isMinFunc) {
   }
 
 _min_max_over:
+  if (numOfElems == 0 && pCtx->subsidiaries.num > 0 && !pBuf->nullTupleSaved ) {
+    doSaveTupleData(pCtx, pInput->startRowIndex, pCtx->pSrcBlock, &pBuf->nullTuplePos);
+    pBuf->nullTupleSaved = true;
+  }
   return numOfElems;
 }
 
@@ -1615,7 +1633,7 @@ int32_t minmaxFunctionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   if (pEntryInfo->numOfRes > 0) {
     setSelectivityValue(pCtx, pBlock, &pRes->tuplePos, currentRow);
   } else {
-    setNullSelectivityValue(pCtx, pBlock, currentRow);
+    setSelectivityValue(pCtx, pBlock, &pRes->nullTuplePos, currentRow);
   }
 
   return pEntryInfo->numOfRes;
@@ -3366,6 +3384,8 @@ bool topBotFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResInfo) {
 
   pRes->maxSize = pCtx->param[1].param.i;
 
+  pRes->nullTupleSaved = false;
+  pRes->nullTuplePos.pageId = -1;
   return true;
 }
 
@@ -3403,6 +3423,10 @@ int32_t topFunction(SqlFunctionCtx* pCtx) {
     doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, pRes->type, pInput->uid, pResInfo, true);
   }
 
+  if (numOfElems == 0 && pCtx->subsidiaries.num > 0 && !pRes->nullTupleSaved) {
+    doSaveTupleData(pCtx, pInput->startRowIndex, pCtx->pSrcBlock, &pRes->nullTuplePos);
+    pRes->nullTupleSaved = true;
+  }
   return TSDB_CODE_SUCCESS;
 }
 
@@ -3427,6 +3451,11 @@ int32_t bottomFunction(SqlFunctionCtx* pCtx) {
     doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, pRes->type, pInput->uid, pResInfo, false);
   }
 
+  if (numOfElems == 0 && pCtx->subsidiaries.num > 0 && !pRes->nullTupleSaved) {
+    doSaveTupleData(pCtx, pInput->startRowIndex, pCtx->pSrcBlock, &pRes->nullTuplePos);
+    pRes->nullTupleSaved = true;
+  }
+
   return TSDB_CODE_SUCCESS;
 }
 
@@ -3625,6 +3654,11 @@ int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
 
   // todo assign the tag value and the corresponding row data
   int32_t currentRow = pBlock->info.rows;
+  if (pEntryInfo->numOfRes <= 0) {
+    colDataAppendNULL(pCol, currentRow);
+    setSelectivityValue(pCtx, pBlock, &pRes->nullTuplePos, currentRow);
+    return pEntryInfo->numOfRes;
+  }
   for (int32_t i = 0; i < pEntryInfo->numOfRes; ++i) {
     STopBotResItem* pItem = &pRes->pItems[i];
     if (type == TSDB_DATA_TYPE_FLOAT) {
@@ -4897,7 +4931,8 @@ bool sampleFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInfo)
   pInfo->numSampled = 0;
   pInfo->colType = pCtx->resDataInfo.type;
   pInfo->colBytes = pCtx->resDataInfo.bytes;
-
+  pInfo->nullTuplePos.pageId = -1;
+  pInfo->nullTupleSaved = false;
   pInfo->data = (char*)pInfo + sizeof(SSampleInfo);
   pInfo->tuplePos = (STuplePos*)((char*)pInfo + sizeof(SSampleInfo) + pInfo->samples * pInfo->colBytes);
 
@@ -4943,6 +4978,11 @@ int32_t sampleFunction(SqlFunctionCtx* pCtx) {
     doReservoirSample(pCtx, pInfo, data, i);
   }
 
+  if (pInfo->numSampled == 0 && pCtx->subsidiaries.num > 0 && !pInfo->nullTupleSaved) {
+    doSaveTupleData(pCtx, pInput->startRowIndex, pCtx->pSrcBlock, &pInfo->nullTuplePos);
+    pInfo->nullTupleSaved = true;
+  }
+
   SET_VAL(pResInfo, pInfo->numSampled, pInfo->numSampled);
   return TSDB_CODE_SUCCESS;
 }
@@ -4957,6 +4997,11 @@ int32_t sampleFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
 
   int32_t currentRow = pBlock->info.rows;
+  if (pInfo->numSampled == 0) {
+    colDataAppendNULL(pCol, currentRow);
+    setSelectivityValue(pCtx, pBlock, &pInfo->nullTuplePos, currentRow);
+    return pInfo->numSampled;
+  }
   for (int32_t i = 0; i < pInfo->numSampled; ++i) {
     colDataAppend(pCol, currentRow + i, pInfo->data + i * pInfo->colBytes, false);
     setSelectivityValue(pCtx, pBlock, &pInfo->tuplePos[i], currentRow + i);
diff --git a/source/libs/function/src/functionMgt.c b/source/libs/function/src/functionMgt.c
index 339ff3808b06e114fe282997c4ea9c86ff1e1f10..0235f22f55e5c96bc16954c009244de72281caf6 100644
--- a/source/libs/function/src/functionMgt.c
+++ b/source/libs/function/src/functionMgt.c
@@ -221,6 +221,18 @@ bool fmIsLastRowFunc(int32_t funcId) {
   return FUNCTION_TYPE_LAST_ROW == funcMgtBuiltins[funcId].type;
 }
 
+bool fmIsNotNullOutputFunc(int32_t funcId) {
+  if (funcId < 0 || funcId >= funcMgtBuiltinsNum) {
+    return false;
+  }
+  return FUNCTION_TYPE_LAST == funcMgtBuiltins[funcId].type ||
+         FUNCTION_TYPE_LAST_PARTIAL == funcMgtBuiltins[funcId].type ||
+         FUNCTION_TYPE_LAST_MERGE == funcMgtBuiltins[funcId].type ||
+         FUNCTION_TYPE_FIRST == funcMgtBuiltins[funcId].type ||
+         FUNCTION_TYPE_FIRST_PARTIAL == funcMgtBuiltins[funcId].type ||
+         FUNCTION_TYPE_FIRST_MERGE == funcMgtBuiltins[funcId].type;
+}
+
 bool fmIsSelectValueFunc(int32_t funcId) {
   if (funcId < 0 || funcId >= funcMgtBuiltinsNum) {
     return false;
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 9971f20d3d9882e359513b01b049fb33e1be40c1..5c49a6e0aba6cc6e6daa190c5eb957ef42b5dacc 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -2515,7 +2515,7 @@ static bool isPartitionByTbname(SNodeList* pPartitionByList) {
     return false;
   }
   SNode* pPartKey = nodesListGetNode(pPartitionByList, 0);
-  return QUERY_NODE_FUNCTION != nodeType(pPartKey) || FUNCTION_TYPE_TBNAME != ((SFunctionNode*)pPartKey)->funcType;
+  return QUERY_NODE_FUNCTION == nodeType(pPartKey) && FUNCTION_TYPE_TBNAME == ((SFunctionNode*)pPartKey)->funcType;
 }
 
 static int32_t checkStateWindowForStream(STranslateContext* pCxt, SSelectStmt* pSelect) {
@@ -2566,7 +2566,6 @@ static int32_t translateWindow(STranslateContext* pCxt, SSelectStmt* pSelect) {
   if (NULL == pSelect->pWindow) {
     return TSDB_CODE_SUCCESS;
   }
-  pSelect->isTimeLineResult = true;
   pCxt->currClause = SQL_CLAUSE_WINDOW;
   int32_t code = translateExpr(pCxt, &pSelect->pWindow);
   if (TSDB_CODE_SUCCESS == code) {
@@ -2637,7 +2636,6 @@ static int32_t translatePartitionBy(STranslateContext* pCxt, SSelectStmt* pSelec
   if (NULL == pSelect->pPartitionByList) {
     return TSDB_CODE_SUCCESS;
   }
-  pSelect->isTimeLineResult = false;
   pCxt->currClause = SQL_CLAUSE_PARTITION_BY;
   return translateExprList(pCxt, pSelect->pPartitionByList);
 }
@@ -4708,6 +4706,12 @@ static int32_t translateKillTransaction(STranslateContext* pCxt, SKillStmt* pStm
   return buildCmdMsg(pCxt, TDMT_MND_KILL_TRANS, (FSerializeFunc)tSerializeSKillTransReq, &killReq);
 }
 
+static bool crossTableWithoutAggOper(SSelectStmt* pSelect) {
+  return NULL == pSelect->pWindow && !pSelect->hasAggFuncs && !pSelect->hasIndefiniteRowsFunc &&
+         !pSelect->hasInterpFunc && TSDB_SUPER_TABLE == ((SRealTableNode*)pSelect->pFromTable)->pMeta->tableType &&
+         !isPartitionByTbname(pSelect->pPartitionByList);
+}
+
 static int32_t checkCreateStream(STranslateContext* pCxt, SCreateStreamStmt* pStmt) {
   if (NULL != pStmt->pOptions->pWatermark &&
       (DEAL_RES_ERROR == translateValue(pCxt, (SValueNode*)pStmt->pOptions->pWatermark))) {
@@ -4723,14 +4727,12 @@ static int32_t checkCreateStream(STranslateContext* pCxt, SCreateStreamStmt* pSt
     return TSDB_CODE_SUCCESS;
   }
 
-  if (QUERY_NODE_SELECT_STMT == nodeType(pStmt->pQuery)) {
-    SSelectStmt* pSelect = (SSelectStmt*)pStmt->pQuery;
-    if (QUERY_NODE_REAL_TABLE == nodeType(pSelect->pFromTable)) {
-      return TSDB_CODE_SUCCESS;
-    }
+  if (QUERY_NODE_SELECT_STMT != nodeType(pStmt->pQuery) ||
+      QUERY_NODE_REAL_TABLE != nodeType(((SSelectStmt*)pStmt->pQuery)->pFromTable)) {
+    return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_STREAM_QUERY, "Unsupported stream query");
   }
 
-  return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_STREAM_QUERY, "Unsupported stream query");
+  return TSDB_CODE_SUCCESS;
 }
 
 static void getSourceDatabase(SNode* pStmt, int32_t acctId, char* pDbFName) {
@@ -4759,12 +4761,23 @@ static int32_t addWstartTsToCreateStreamQuery(SNode* pStmt) {
   return code;
 }
 
+static int32_t checkStreamQuery(STranslateContext* pCxt, SSelectStmt* pSelect) {
+  if (TSDB_DATA_TYPE_TIMESTAMP != ((SExprNode*)nodesListGetNode(pSelect->pProjectionList, 0))->resType.type ||
+      !pSelect->isTimeLineResult || crossTableWithoutAggOper(pSelect)) {
+    return generateSyntaxErrMsgExt(&pCxt->msgBuf, TSDB_CODE_PAR_INVALID_STREAM_QUERY, "Unsupported stream query");
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
 static int32_t buildCreateStreamQuery(STranslateContext* pCxt, SNode* pStmt, SCMCreateStreamReq* pReq) {
   pCxt->createStream = true;
   int32_t code = addWstartTsToCreateStreamQuery(pStmt);
   if (TSDB_CODE_SUCCESS == code) {
     code = translateQuery(pCxt, pStmt);
   }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = checkStreamQuery(pCxt, (SSelectStmt*)pStmt);
+  }
   if (TSDB_CODE_SUCCESS == code) {
     getSourceDatabase(pStmt, pCxt->pParseCxt->acctId, pReq->sourceDB);
     code = nodesNodeToString(pStmt, false, &pReq->ast, NULL);
diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index e10f0586ca75c6d1e26b4ba61dad6ac37cceaec6..97977878ad3b51ac91b27f768478fdee3cd2eb26 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -268,7 +268,7 @@ static bool stbSplNeedSplit(bool streamQuery, SLogicNode* pNode) {
     case QUERY_NODE_LOGIC_PLAN_JOIN:
       return stbSplNeedSplitJoin(streamQuery, (SJoinLogicNode*)pNode);
     case QUERY_NODE_LOGIC_PLAN_PARTITION:
-      return stbSplIsMultiTbScanChild(streamQuery, pNode);
+      return streamQuery ? false : stbSplIsMultiTbScanChild(streamQuery, pNode);
     case QUERY_NODE_LOGIC_PLAN_AGG:
       return !stbSplHasGatherExecFunc(((SAggLogicNode*)pNode)->pAggFuncs) && stbSplHasMultiTbScan(streamQuery, pNode);
     case QUERY_NODE_LOGIC_PLAN_WINDOW:
diff --git a/source/libs/stream/CMakeLists.txt b/source/libs/stream/CMakeLists.txt
index 33e864158ad4b107237356c805260a913bd89094..ceddf4f2153735c4d8423dde806272419dc35fc5 100644
--- a/source/libs/stream/CMakeLists.txt
+++ b/source/libs/stream/CMakeLists.txt
@@ -8,7 +8,8 @@ target_include_directories(
 
 target_link_libraries(
     stream
-    PRIVATE os util transport qcom executor tdb
+    PUBLIC tdb
+    PRIVATE os util transport qcom executor
 )
 
 if(${BUILD_TEST})
diff --git a/source/libs/stream/src/streamMeta.c b/source/libs/stream/src/streamMeta.c
index 7dfeefb26127ae484cf0e776da289f2c44376105..8faa22d6439487bad9c76ab5ad554489b752976e 100644
--- a/source/libs/stream/src/streamMeta.c
+++ b/source/libs/stream/src/streamMeta.c
@@ -14,22 +14,8 @@
  */
 
 #include "executor.h"
-#include "tdbInt.h"
 #include "tstream.h"
 
-typedef int32_t FTaskExpand(void* ahandle, SStreamTask* pTask);
-
-typedef struct SStreamMeta {
-  char*        path;
-  TDB*         db;
-  TTB*         pTaskDb;
-  TTB*         pStateDb;
-  SHashObj*    pTasks;
-  void*        ahandle;
-  TXN          txn;
-  FTaskExpand* expandFunc;
-} SStreamMeta;
-
 SStreamMeta* streamMetaOpen(const char* path, void* ahandle, FTaskExpand expandFunc) {
   SStreamMeta* pMeta = taosMemoryCalloc(1, sizeof(SStreamMeta));
   if (pMeta == NULL) {
@@ -50,8 +36,18 @@ SStreamMeta* streamMetaOpen(const char* path, void* ahandle, FTaskExpand expandF
     goto _err;
   }
 
+  pMeta->pTasks = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
+  if (pMeta->pTasks == NULL) {
+    goto _err;
+  }
+
+  if (streamMetaBegin(pMeta) < 0) {
+    goto _err;
+  }
+
   pMeta->ahandle = ahandle;
   pMeta->expandFunc = expandFunc;
+
   return pMeta;
 _err:
   return NULL;
@@ -62,6 +58,48 @@ void streamMetaClose(SStreamMeta* pMeta) {
   tdbTbClose(pMeta->pTaskDb);
   tdbTbClose(pMeta->pStateDb);
   tdbClose(pMeta->db);
+
+  void* pIter = NULL;
+  while (1) {
+    pIter = taosHashIterate(pMeta->pTasks, pIter);
+    if (pIter == NULL) break;
+    SStreamTask* pTask = *(SStreamTask**)pIter;
+    tFreeSStreamTask(pTask);
+  }
+  taosHashCleanup(pMeta->pTasks);
+  taosMemoryFree(pMeta->path);
+  taosMemoryFree(pMeta);
+}
+
+int32_t streamMetaAddSerializedTask(SStreamMeta* pMeta, char* msg, int32_t msgLen) {
+  SStreamTask* pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
+  if (pTask == NULL) {
+    return -1;
+  }
+  SDecoder decoder;
+  tDecoderInit(&decoder, (uint8_t*)msg, msgLen);
+  if (tDecodeSStreamTask(&decoder, pTask) < 0) {
+    ASSERT(0);
+    goto FAIL;
+  }
+  tDecoderClear(&decoder);
+
+  if (pMeta->expandFunc(pMeta->ahandle, pTask) < 0) {
+    ASSERT(0);
+    goto FAIL;
+  }
+
+  taosHashPut(pMeta->pTasks, &pTask->taskId, sizeof(int32_t), &pTask, sizeof(void*));
+
+  if (tdbTbUpsert(pMeta->pTaskDb, &pTask->taskId, sizeof(int32_t), msg, msgLen, &pMeta->txn) < 0) {
+    ASSERT(0);
+    return -1;
+  }
+  return 0;
+
+FAIL:
+  if (pTask) taosMemoryFree(pTask);
+  return -1;
 }
 
 int32_t streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask) {
@@ -94,6 +132,16 @@ int32_t streamMetaAddTask(SStreamMeta* pMeta, SStreamTask* pTask) {
   return 0;
 }
 
+SStreamTask* streamMetaGetTask(SStreamMeta* pMeta, int32_t taskId) {
+  SStreamTask** ppTask = (SStreamTask**)taosHashGet(pMeta->pTasks, &taskId, sizeof(int32_t));
+  if (ppTask) {
+    ASSERT((*ppTask)->taskId == taskId);
+    return *ppTask;
+  } else {
+    return NULL;
+  }
+}
+
 int32_t streamMetaRemoveTask(SStreamMeta* pMeta, int32_t taskId) {
   SStreamTask** ppTask = (SStreamTask**)taosHashGet(pMeta->pTasks, &taskId, sizeof(int32_t));
   if (ppTask) {
@@ -150,7 +198,7 @@ int32_t streamMetaAbort(SStreamMeta* pMeta) {
   return 0;
 }
 
-int32_t streamRestoreTask(SStreamMeta* pMeta) {
+int32_t streamLoadTasks(SStreamMeta* pMeta) {
   TBC* pCur = NULL;
   if (tdbTbcOpen(pMeta->pTaskDb, &pCur, NULL) < 0) {
     ASSERT(0);
diff --git a/source/libs/stream/src/streamRecover.c b/source/libs/stream/src/streamRecover.c
index 3530c05688086cba7f093e5974d9be83a16d98a8..2a77ce8a91a0f6e416b32b1362f013238f99c82c 100644
--- a/source/libs/stream/src/streamRecover.c
+++ b/source/libs/stream/src/streamRecover.c
@@ -87,53 +87,80 @@ int32_t tDecodeSMStreamTaskRecoverRsp(SDecoder* pDecoder, SMStreamTaskRecoverRsp
   return 0;
 }
 
-int32_t streamProcessFailRecoverReq(SStreamTask* pTask, SMStreamTaskRecoverReq* pReq, SRpcMsg* pRsp) {
-#if 0
-  if (pTask->taskStatus != TASK_STATUS__FAIL) {
-    return 0;
+typedef struct {
+  int32_t vgId;
+  int32_t childId;
+  int64_t ver;
+} SStreamVgVerCheckpoint;
+
+int32_t tEncodeSStreamVgVerCheckpoint(SEncoder* pEncoder, const SStreamVgVerCheckpoint* pCheckpoint) {
+  if (tEncodeI32(pEncoder, pCheckpoint->vgId) < 0) return -1;
+  if (tEncodeI32(pEncoder, pCheckpoint->childId) < 0) return -1;
+  if (tEncodeI64(pEncoder, pCheckpoint->ver) < 0) return -1;
+  return 0;
+}
+
+int32_t tDecodeSStreamVgVerCheckpoint(SDecoder* pDecoder, SStreamVgVerCheckpoint* pCheckpoint) {
+  if (tDecodeI32(pDecoder, &pCheckpoint->vgId) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pCheckpoint->childId) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pCheckpoint->ver) < 0) return -1;
+  return 0;
+}
+
+typedef struct {
+  int64_t streamId;
+  int64_t checkTs;
+  int64_t checkpointId;
+  int32_t taskId;
+  SArray* checkpointVer;  // SArray<SStreamVgCheckpointVer>
+} SStreamAggVerCheckpoint;
+
+int32_t tEncodeSStreamAggVerCheckpoint(SEncoder* pEncoder, const SStreamAggVerCheckpoint* pCheckpoint) {
+  if (tEncodeI64(pEncoder, pCheckpoint->streamId) < 0) return -1;
+  if (tEncodeI64(pEncoder, pCheckpoint->checkTs) < 0) return -1;
+  if (tEncodeI64(pEncoder, pCheckpoint->checkpointId) < 0) return -1;
+  if (tEncodeI32(pEncoder, pCheckpoint->taskId) < 0) return -1;
+  int32_t sz = taosArrayGetSize(pCheckpoint->checkpointVer);
+  if (tEncodeI32(pEncoder, sz) < 0) return -1;
+  for (int32_t i = 0; i < sz; i++) {
+    SStreamVgVerCheckpoint* pOneVgCkpoint = taosArrayGet(pCheckpoint->checkpointVer, i);
+    if (tEncodeSStreamVgVerCheckpoint(pEncoder, pOneVgCkpoint) < 0) return -1;
   }
+  return 0;
+}
 
-  if (pTask->isStreamDistributed) {
-    if (pTask->taskType == TASK_TYPE__SOURCE) {
-      pTask->taskStatus = TASK_STATUS__PREPARE_RECOVER;
-    } else if (pTask->taskType != TASK_TYPE__SINK) {
-      pTask->taskStatus = TASK_STATUS__PREPARE_RECOVER;
-      bool    hasCheckpoint = false;
-      int32_t childSz = taosArrayGetSize(pTask->childEpInfo);
-      for (int32_t i = 0; i < childSz; i++) {
-        SStreamChildEpInfo* pEpInfo = taosArrayGetP(pTask->childEpInfo, i);
-        if (pEpInfo->checkpointVer == -1) {
-          hasCheckpoint = true;
-          break;
-        }
-      }
-      if (hasCheckpoint) {
-        // load from checkpoint
-      } else {
-        // recover child
-      }
-    }
-  } else {
-    if (pTask->taskType == TASK_TYPE__SOURCE) {
-      if (pTask->checkpointVer != -1) {
-        // load from checkpoint
-      } else {
-        // reset stream query task info
-        // TODO get snapshot ver
-        pTask->recoverSnapVer = -1;
-        qStreamPrepareRecover(pTask->exec.executor, pTask->startVer, pTask->recoverSnapVer);
-        pTask->taskStatus = TASK_STATUS__RECOVERING;
-      }
-    }
+int32_t tDecodeSStreamAggVerCheckpoint(SDecoder* pDecoder, SStreamAggVerCheckpoint* pCheckpoint) {
+  if (tDecodeI64(pDecoder, &pCheckpoint->streamId) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pCheckpoint->checkTs) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pCheckpoint->checkpointId) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pCheckpoint->taskId) < 0) return -1;
+  int32_t sz;
+  if (tDecodeI32(pDecoder, &sz) < 0) return -1;
+  for (int32_t i = 0; i < sz; i++) {
+    SStreamVgVerCheckpoint oneVgCheckpoint;
+    if (tDecodeSStreamVgVerCheckpoint(pDecoder, &oneVgCheckpoint) < 0) return -1;
+    taosArrayPush(pCheckpoint->checkpointVer, &oneVgCheckpoint);
   }
+  return 0;
+}
 
-  if (pTask->taskStatus == TASK_STATUS__RECOVERING) {
-    if (streamPipelineExec(pTask, 100) < 0) {
-      // set fail
-      return -1;
-    }
+int32_t streamRecoverSinkLevel(SStreamMeta* pMeta, SStreamTask* pTask) {
+  ASSERT(pTask->taskLevel == TASK_LEVEL__SINK);
+  // load status
+  void*   pVal = NULL;
+  int32_t vLen = 0;
+  if (tdbTbGet(pMeta->pStateDb, &pTask->taskId, sizeof(void*), &pVal, &vLen) < 0) {
+    return -1;
   }
+  SDecoder decoder;
+  tDecoderInit(&decoder, pVal, vLen);
+  SStreamAggVerCheckpoint aggCheckpoint;
+  tDecodeSStreamAggVerCheckpoint(&decoder, &aggCheckpoint);
+  /*pTask->*/
+  return 0;
+}
 
-#endif
+int32_t streamRecoverTask(SStreamTask* pTask) {
+  //
   return 0;
 }
diff --git a/source/libs/stream/src/streamTask.c b/source/libs/stream/src/streamTask.c
index 3a5498198960fd0ceff28a24297ec7d7c6456dd5..8b5bd849f6627802d8b3098efe0c4288f9ecf323 100644
--- a/source/libs/stream/src/streamTask.c
+++ b/source/libs/stream/src/streamTask.c
@@ -52,6 +52,7 @@ int32_t tEncodeSStreamTask(SEncoder* pEncoder, const SStreamTask* pTask) {
   /*if (tStartEncode(pEncoder) < 0) return -1;*/
   if (tEncodeI64(pEncoder, pTask->streamId) < 0) return -1;
   if (tEncodeI32(pEncoder, pTask->taskId) < 0) return -1;
+  if (tEncodeI32(pEncoder, pTask->totalLevel) < 0) return -1;
   if (tEncodeI8(pEncoder, pTask->taskLevel) < 0) return -1;
   if (tEncodeI8(pEncoder, pTask->outputType) < 0) return -1;
   if (tEncodeI16(pEncoder, pTask->dispatchMsgType) < 0) return -1;
@@ -62,7 +63,6 @@ int32_t tEncodeSStreamTask(SEncoder* pEncoder, const SStreamTask* pTask) {
   if (tEncodeI32(pEncoder, pTask->selfChildId) < 0) return -1;
   if (tEncodeI32(pEncoder, pTask->nodeId) < 0) return -1;
   if (tEncodeSEpSet(pEncoder, &pTask->epSet) < 0) return -1;
-  /*if (tEncodeI32(pEncoder, pTask->numOfVgroups) < 0) return -1;*/
 
   int32_t epSz = taosArrayGetSize(pTask->childEpInfo);
   if (tEncodeI32(pEncoder, epSz) < 0) return -1;
@@ -101,6 +101,7 @@ int32_t tDecodeSStreamTask(SDecoder* pDecoder, SStreamTask* pTask) {
   /*if (tStartDecode(pDecoder) < 0) return -1;*/
   if (tDecodeI64(pDecoder, &pTask->streamId) < 0) return -1;
   if (tDecodeI32(pDecoder, &pTask->taskId) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pTask->totalLevel) < 0) return -1;
   if (tDecodeI8(pDecoder, &pTask->taskLevel) < 0) return -1;
   if (tDecodeI8(pDecoder, &pTask->outputType) < 0) return -1;
   if (tDecodeI16(pDecoder, &pTask->dispatchMsgType) < 0) return -1;
@@ -111,7 +112,6 @@ int32_t tDecodeSStreamTask(SDecoder* pDecoder, SStreamTask* pTask) {
   if (tDecodeI32(pDecoder, &pTask->selfChildId) < 0) return -1;
   if (tDecodeI32(pDecoder, &pTask->nodeId) < 0) return -1;
   if (tDecodeSEpSet(pDecoder, &pTask->epSet) < 0) return -1;
-  /*if (tDecodeI32(pDecoder, &pTask->numOfVgroups) < 0) return -1;*/
 
   int32_t epSz;
   if (tDecodeI32(pDecoder, &epSz) < 0) return -1;
diff --git a/source/libs/sync/inc/syncRaftLog.h b/source/libs/sync/inc/syncRaftLog.h
index 65ec77e38ff10ff77de1d4000515439ad7844ef9..ff59189a9d6a96566e3246a5ed8fa25ca819e440 100644
--- a/source/libs/sync/inc/syncRaftLog.h
+++ b/source/libs/sync/inc/syncRaftLog.h
@@ -47,6 +47,8 @@ char*          logStoreSimple2Str(SSyncLogStore* pLogStore);
 
 SyncIndex logStoreFirstIndex(SSyncLogStore* pLogStore);
 
+SyncIndex logStoreWalCommitVer(SSyncLogStore* pLogStore);
+
 // for debug
 void logStorePrint(SSyncLogStore* pLogStore);
 void logStorePrint2(char* s, SSyncLogStore* pLogStore);
diff --git a/source/libs/sync/src/syncAppendEntries.c b/source/libs/sync/src/syncAppendEntries.c
index f31f3dd1aea037b36846cf0fda55a564220e12fb..4f93d8197dc801ae86619858b15d9055059565eb 100644
--- a/source/libs/sync/src/syncAppendEntries.c
+++ b/source/libs/sync/src/syncAppendEntries.c
@@ -357,16 +357,14 @@ static int32_t syncNodeMakeLogSame(SSyncNode* ths, SyncAppendEntries* pMsg) {
   code = ths->pLogStore->syncLogTruncate(ths->pLogStore, delBegin);
   ASSERT(code == 0);
 
-  char eventLog[128];
-  snprintf(eventLog, sizeof(eventLog), "log truncate, from %" PRId64 " to %" PRId64, delBegin, delEnd);
-  syncNodeEventLog(ths, eventLog);
-  logStoreSimpleLog2("after syncNodeMakeLogSame", ths->pLogStore);
-
   return code;
 }
 
+// if FromIndex > walCommitVer, return 0
+// else return num of pass entries
 static int32_t syncNodeDoMakeLogSame(SSyncNode* ths, SyncIndex FromIndex) {
-  int32_t code;
+  int32_t code = 0;
+  int32_t pass = 0;
 
   SyncIndex delBegin = FromIndex;
   SyncIndex delEnd = ths->pLogStore->syncLogLastIndex(ths->pLogStore);
@@ -398,16 +396,31 @@ static int32_t syncNodeDoMakeLogSame(SSyncNode* ths, SyncIndex FromIndex) {
     }
   }
 
+  // update delete begin
+  SyncIndex walCommitVer = logStoreWalCommitVer(ths->pLogStore);
+
+  if (delBegin <= walCommitVer) {
+    delBegin = walCommitVer + 1;
+    pass = walCommitVer - delBegin + 1;
+
+    do {
+      char logBuf[128];
+      snprintf(logBuf, sizeof(logBuf), "update delete begin to %ld", delBegin);
+      syncNodeEventLog(ths, logBuf);
+    } while (0);
+  }
+
   // delete confict entries
   code = ths->pLogStore->syncLogTruncate(ths->pLogStore, delBegin);
   ASSERT(code == 0);
 
-  char eventLog[128];
-  snprintf(eventLog, sizeof(eventLog), "log truncate, from %" PRId64 " to %" PRId64, delBegin, delEnd);
-  syncNodeEventLog(ths, eventLog);
-  logStoreSimpleLog2("after syncNodeMakeLogSame", ths->pLogStore);
+  do {
+    char logBuf[128];
+    snprintf(logBuf, sizeof(logBuf), "make log same from:%ld, delbegin:%ld, pass:%d", FromIndex, delBegin, pass);
+    syncNodeEventLog(ths, logBuf);
+  } while (0);
 
-  return code;
+  return pass;
 }
 
 int32_t syncNodePreCommit(SSyncNode* ths, SSyncRaftEntry* pEntry, int32_t code) {
@@ -543,31 +556,34 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
       SOffsetAndContLen* metaTableArr = syncAppendEntriesBatchMetaTableArray(pMsg);
 
       if (hasAppendEntries && pMsg->prevLogIndex == ths->commitIndex) {
-        // make log same
-        do {
-          SyncIndex logLastIndex = ths->pLogStore->syncLogLastIndex(ths->pLogStore);
-          bool      hasExtraEntries = logLastIndex > pMsg->prevLogIndex;
+        int32_t   pass = 0;
+        SyncIndex logLastIndex = ths->pLogStore->syncLogLastIndex(ths->pLogStore);
+        bool      hasExtraEntries = logLastIndex > pMsg->prevLogIndex;
 
-          if (hasExtraEntries) {
-            // make log same, rollback deleted entries
-            code = syncNodeDoMakeLogSame(ths, pMsg->prevLogIndex + 1);
-            ASSERT(code == 0);
-          }
-
-        } while (0);
+        // make log same
+        if (hasExtraEntries) {
+          // make log same, rollback deleted entries
+          pass = syncNodeDoMakeLogSame(ths, pMsg->prevLogIndex + 1);
+          ASSERT(pass >= 0);
+        }
 
         // append entry batch
-        for (int32_t i = 0; i < pMsg->dataCount; ++i) {
-          SSyncRaftEntry* pAppendEntry = (SSyncRaftEntry*)(pMsg->data + metaTableArr[i].offset);
-          code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pAppendEntry);
-          if (code != 0) {
-            return -1;
-          }
+        if (pass == 0) {
+          // assert! no batch
+          ASSERT(pMsg->dataCount <= 1);
+
+          for (int32_t i = 0; i < pMsg->dataCount; ++i) {
+            SSyncRaftEntry* pAppendEntry = (SSyncRaftEntry*)(pMsg->data + metaTableArr[i].offset);
+            code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pAppendEntry);
+            if (code != 0) {
+              return -1;
+            }
 
-          code = syncNodePreCommit(ths, pAppendEntry, 0);
-          ASSERT(code == 0);
+            code = syncNodePreCommit(ths, pAppendEntry, 0);
+            ASSERT(code == 0);
 
-          // syncEntryDestory(pAppendEntry);
+            // syncEntryDestory(pAppendEntry);
+          }
         }
 
         // fsync once
@@ -670,25 +686,33 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
 
       syncLogRecvAppendEntriesBatch(ths, pMsg, "really match");
 
+      int32_t pass = 0;
+
       if (hasExtraEntries) {
         // make log same, rollback deleted entries
-        code = syncNodeDoMakeLogSame(ths, pMsg->prevLogIndex + 1);
-        ASSERT(code == 0);
+        pass = syncNodeDoMakeLogSame(ths, pMsg->prevLogIndex + 1);
+        ASSERT(pass >= 0);
       }
 
       if (hasAppendEntries) {
         // append entry batch
-        for (int32_t i = 0; i < pMsg->dataCount; ++i) {
-          SSyncRaftEntry* pAppendEntry = (SSyncRaftEntry*)(pMsg->data + metaTableArr[i].offset);
-          code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pAppendEntry);
-          if (code != 0) {
-            return -1;
-          }
+        if (pass == 0) {
+          // assert! no batch
+          ASSERT(pMsg->dataCount <= 1);
+
+          // append entry batch
+          for (int32_t i = 0; i < pMsg->dataCount; ++i) {
+            SSyncRaftEntry* pAppendEntry = (SSyncRaftEntry*)(pMsg->data + metaTableArr[i].offset);
+            code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pAppendEntry);
+            if (code != 0) {
+              return -1;
+            }
 
-          code = syncNodePreCommit(ths, pAppendEntry, 0);
-          ASSERT(code == 0);
+            code = syncNodePreCommit(ths, pAppendEntry, 0);
+            ASSERT(code == 0);
 
-          // syncEntryDestory(pAppendEntry);
+            // syncEntryDestory(pAppendEntry);
+          }
         }
 
         // fsync once
diff --git a/source/libs/sync/src/syncCommit.c b/source/libs/sync/src/syncCommit.c
index a603cfff2762bbd4fea088c9a4ad120d0471fce0..3a94ed9713ba2b12e2ce766b3dfd9e615b309d9f 100644
--- a/source/libs/sync/src/syncCommit.c
+++ b/source/libs/sync/src/syncCommit.c
@@ -92,6 +92,12 @@ void syncMaybeAdvanceCommitIndex(SSyncNode* pSyncNode) {
     }
   }
 
+  // advance commit index as large as possible
+  SyncIndex walCommitVer = logStoreWalCommitVer(pSyncNode->pLogStore);
+  if (walCommitVer > newCommitIndex) {
+    newCommitIndex = walCommitVer;
+  }
+
   // maybe execute fsm
   if (newCommitIndex > pSyncNode->commitIndex) {
     SyncIndex beginIndex = pSyncNode->commitIndex + 1;
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index 78004c0ad601b403ce1046ae41ac6ff995c6e7f9..3f9aa6c080e2e7f4e83b9cd7460abc9cf7629737 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -2409,6 +2409,9 @@ static void syncNodeEqElectTimer(void* param, void* tmrId) {
 
 static void syncNodeEqHeartbeatTimer(void* param, void* tmrId) {
   SSyncNode* pSyncNode = (SSyncNode*)param;
+
+  syncNodeEventLog(pSyncNode, "eq hb timer");
+
   if (pSyncNode->replicaNum > 1) {
     if (atomic_load_64(&pSyncNode->heartbeatTimerLogicClockUser) <=
         atomic_load_64(&pSyncNode->heartbeatTimerLogicClock)) {
@@ -2665,7 +2668,22 @@ int32_t syncDoLeaderTransfer(SSyncNode* ths, SRpcMsg* pRpcMsg, SSyncRaftEntry* p
     syncNodeEventLog(ths, "I am not follower, can not do leader transfer");
     return 0;
   }
-  syncNodeEventLog(ths, "do leader transfer");
+
+  if (!ths->restoreFinish) {
+    syncNodeEventLog(ths, "restore not finish, can not do leader transfer");
+    return 0;
+  }
+
+  if (ths->vgId > 1) {
+    syncNodeEventLog(ths, "I am vnode, can not do leader transfer");
+    return 0;
+  }
+
+  do {
+    char logBuf[128];
+    snprintf(logBuf, sizeof(logBuf), "do leader transfer, index:%ld", pEntry->index);
+    syncNodeEventLog(ths, logBuf);
+  } while (0);
 
   bool sameId = syncUtilSameId(&(pSyncLeaderTransfer->newLeaderId), &(ths->myRaftId));
   bool sameNodeInfo = strcmp(pSyncLeaderTransfer->newNodeInfo.nodeFqdn, ths->myNodeInfo.nodeFqdn) == 0 &&
diff --git a/source/libs/sync/src/syncRaftLog.c b/source/libs/sync/src/syncRaftLog.c
index b575e40d86884c9fdd688db03e4cc8492e9ea0d3..0649e064e45391cfe9082c24264a33b762d1a279 100644
--- a/source/libs/sync/src/syncRaftLog.c
+++ b/source/libs/sync/src/syncRaftLog.c
@@ -305,10 +305,18 @@ static int32_t raftLogGetEntry(struct SSyncLogStore* pLogStore, SyncIndex index,
   return code;
 }
 
+// truncate semantic
 static int32_t raftLogTruncate(struct SSyncLogStore* pLogStore, SyncIndex fromIndex) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
-  int32_t            code = walRollback(pWal, fromIndex);
+
+  // need not truncate
+  SyncIndex wallastVer = walGetLastVer(pWal);
+  if (fromIndex > wallastVer) {
+    return 0;
+  }
+
+  int32_t code = walRollback(pWal, fromIndex);
   if (code != 0) {
     int32_t     err = terrno;
     const char* errStr = tstrerror(err);
@@ -323,7 +331,7 @@ static int32_t raftLogTruncate(struct SSyncLogStore* pLogStore, SyncIndex fromIn
   // event log
   do {
     char logBuf[128];
-    snprintf(logBuf, sizeof(logBuf), "wal truncate, from-index:%" PRId64, fromIndex);
+    snprintf(logBuf, sizeof(logBuf), "log truncate, from-index:%" PRId64, fromIndex);
     syncNodeEventLog(pData->pSyncNode, logBuf);
   } while (0);
 
@@ -637,6 +645,12 @@ SyncIndex logStoreFirstIndex(SSyncLogStore* pLogStore) {
   return walGetFirstVer(pWal);
 }
 
+SyncIndex logStoreWalCommitVer(SSyncLogStore* pLogStore) {
+  SSyncLogStoreData* pData = pLogStore->data;
+  SWal*              pWal = pData->pWal;
+  return walGetCommittedVer(pWal);
+}
+
 // for debug -----------------
 void logStorePrint(SSyncLogStore* pLogStore) {
   char* serialized = logStore2Str(pLogStore);
diff --git a/source/libs/transport/inc/transComm.h b/source/libs/transport/inc/transComm.h
index a81d6db80fb9d40d4847878c19483ebe3d254b38..ad0ce4f5e1c03ce03b6599f000d3e9c94a01157c 100644
--- a/source/libs/transport/inc/transComm.h
+++ b/source/libs/transport/inc/transComm.h
@@ -94,9 +94,10 @@ typedef void* queue[2];
 /* Return the structure holding the given element. */
 #define QUEUE_DATA(e, type, field) ((type*)((void*)((char*)(e)-offsetof(type, field))))
 
-#define TRANS_RETRY_COUNT_LIMIT 100  // retry count limit
-#define TRANS_RETRY_INTERVAL    15   // ms retry interval
-#define TRANS_CONN_TIMEOUT      3    // connect timeout
+#define TRANS_RETRY_COUNT_LIMIT 100   // retry count limit
+#define TRANS_RETRY_INTERVAL    15    // retry interval (ms)
+#define TRANS_CONN_TIMEOUT      3     // connect timeout (s)
+#define TRANS_READ_TIMEOUT      3000  // read timeout  (ms)
 
 typedef SRpcMsg      STransMsg;
 typedef SRpcCtx      STransCtx;
diff --git a/source/libs/transport/inc/transportInt.h b/source/libs/transport/inc/transportInt.h
index 5fb2980cebc2b45a5f83c29c2403a4a15c841db2..6aeeffa1925038050f14b25f2d422177a072c95a 100644
--- a/source/libs/transport/inc/transportInt.h
+++ b/source/libs/transport/inc/transportInt.h
@@ -53,6 +53,7 @@ typedef struct {
 
   void (*cfp)(void* parent, SRpcMsg*, SEpSet*);
   bool (*retry)(int32_t code, tmsg_t msgType);
+  bool (*startTimer)(int32_t code, tmsg_t msgType);
   int index;
 
   void*         parent;
diff --git a/source/libs/transport/src/.transSvr.c.swo b/source/libs/transport/src/.transSvr.c.swo
deleted file mode 100644
index c9486c50867994926ea395577110ee4d15de5632..0000000000000000000000000000000000000000
Binary files a/source/libs/transport/src/.transSvr.c.swo and /dev/null differ
diff --git a/source/libs/transport/src/trans.c b/source/libs/transport/src/trans.c
index 7633820292ae2442f78c85537fb5c46b4caabea9..0a0dcef378bde92a18b9455b203774a3c28aa428 100644
--- a/source/libs/transport/src/trans.c
+++ b/source/libs/transport/src/trans.c
@@ -48,6 +48,7 @@ void* rpcOpen(const SRpcInit* pInit) {
   // register callback handle
   pRpc->cfp = pInit->cfp;
   pRpc->retry = pInit->rfp;
+  pRpc->startTimer = pInit->tfp;
 
   if (pInit->connType == TAOS_CONN_SERVER) {
     pRpc->numOfThreads = pInit->numOfThreads > TSDB_MAX_RPC_THREADS ? TSDB_MAX_RPC_THREADS : pInit->numOfThreads;
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 431e479123c6a3d4a98ac151abf81e14800374ce..e1df181329036c797c63803144fc07b95523bf00 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -24,6 +24,7 @@ typedef struct SCliConn {
   uv_connect_t connReq;
   uv_stream_t* stream;
   queue        wreqQueue;
+  uv_timer_t*  timer;
 
   void* hostThrd;
 
@@ -65,12 +66,13 @@ typedef struct SCliThrd {
   int64_t       pid;     // pid
   uv_loop_t*    loop;
   SAsyncPool*   asyncPool;
-  uv_idle_t*    idle;
   uv_prepare_t* prepare;
-  uv_timer_t    timer;
   void*         pool;  // conn pool
 
+  SArray* timerList;
+
   // msg queue
+
   queue         msg;
   TdThreadMutex msgMtx;
   SDelayQueue*  delayQueue;
@@ -108,6 +110,8 @@ static int sockDebugInfo(struct sockaddr* sockname, char* dst) {
   sprintf(dst, "%s:%d", buf, ntohs(addr.sin_port));
   return r;
 }
+// register timer for read
+static void cliReadTimeoutCb(uv_timer_t* handle);
 // register timer in each thread to clear expire conn
 // static void cliTimeoutCb(uv_timer_t* handle);
 // alloc buf for recv
@@ -330,6 +334,16 @@ void cliHandleResp(SCliConn* conn) {
   SCliThrd* pThrd = conn->hostThrd;
   STrans*   pTransInst = pThrd->pTransInst;
 
+  if (conn->timer) {
+    if (uv_is_active((uv_handle_t*)conn->timer)) {
+      tDebug("%s conn %p stop timer", CONN_GET_INST_LABEL(conn), conn);
+      uv_timer_stop(conn->timer);
+    }
+    conn->timer->data = NULL;
+    taosArrayPush(pThrd->timerList, &conn->timer);
+    conn->timer = NULL;
+  }
+
   STransMsgHead* pHead = NULL;
   transDumpFromBuffer(&conn->readBuf, (char**)&pHead);
   pHead->code = htonl(pHead->code);
@@ -409,7 +423,7 @@ void cliHandleResp(SCliConn* conn) {
   uv_read_start((uv_stream_t*)conn->stream, cliAllocRecvBufferCb, cliRecvCb);
 }
 
-void cliHandleExcept(SCliConn* pConn) {
+void cliHandleExceptImpl(SCliConn* pConn, int32_t code) {
   if (transQueueEmpty(&pConn->cliMsgs)) {
     if (pConn->broken == true && CONN_NO_PERSIST_BY_APP(pConn)) {
       tTrace("%s conn %p handle except, persist:0", CONN_GET_INST_LABEL(pConn), pConn);
@@ -428,7 +442,7 @@ void cliHandleExcept(SCliConn* pConn) {
     STransConnCtx* pCtx = pMsg ? pMsg->ctx : NULL;
 
     STransMsg transMsg = {0};
-    transMsg.code = pConn->broken ? TSDB_CODE_RPC_BROKEN_LINK : TSDB_CODE_RPC_NETWORK_UNAVAIL;
+    transMsg.code = code == -1 ? (pConn->broken ? TSDB_CODE_RPC_BROKEN_LINK : TSDB_CODE_RPC_NETWORK_UNAVAIL) : code;
     transMsg.msgType = pMsg ? pMsg->msg.msgType + 1 : 0;
     transMsg.info.ahandle = NULL;
 
@@ -459,31 +473,18 @@ void cliHandleExcept(SCliConn* pConn) {
   } while (!transQueueEmpty(&pConn->cliMsgs));
   transUnrefCliHandle(pConn);
 }
+void cliHandleExcept(SCliConn* conn) {
+  tTrace("%s conn %p except ref:%d", CONN_GET_INST_LABEL(conn), conn, T_REF_VAL_GET(conn));
+  cliHandleExceptImpl(conn, -1);
+}
 
-// void cliTimeoutCb(uv_timer_t* handle) {
-//   SCliThrd* pThrd = handle->data;
-//   STrans*   pTransInst = pThrd->pTransInst;
-//   int64_t   currentTime = pThrd->nextTimeout;
-//   tTrace("%s conn timeout, try to remove expire conn from conn pool", pTransInst->label);
-//
-//   SConnList* p = taosHashIterate((SHashObj*)pThrd->pool, NULL);
-//   while (p != NULL) {
-//     while (!QUEUE_IS_EMPTY(&p->conn)) {
-//       queue*    h = QUEUE_HEAD(&p->conn);
-//       SCliConn* c = QUEUE_DATA(h, SCliConn, q);
-//       if (c->expireTime < currentTime) {
-//         QUEUE_REMOVE(h);
-//         transUnrefCliHandle(c);
-//       } else {
-//         break;
-//       }
-//     }
-//     p = taosHashIterate((SHashObj*)pThrd->pool, p);
-//   }
-//
-//   pThrd->nextTimeout = taosGetTimestampMs() + CONN_PERSIST_TIME(pTransInst->idleTime);
-//   uv_timer_start(handle, cliTimeoutCb, CONN_PERSIST_TIME(pTransInst->idleTime) / 2, 0);
-// }
+void cliReadTimeoutCb(uv_timer_t* handle) {
+  // set up timeout cb
+  SCliConn* conn = handle->data;
+  tTrace("%s conn %p timeout, ref:%d", CONN_GET_INST_LABEL(conn), conn, T_REF_VAL_GET(conn));
+  uv_read_stop(conn->stream);
+  cliHandleExceptImpl(conn, TSDB_CODE_RPC_TIMEOUT);
+}
 
 void* createConnPool(int size) {
   // thread local, no lock
@@ -654,13 +655,23 @@ static SCliConn* cliCreateConn(SCliThrd* pThrd) {
   return conn;
 }
 static void cliDestroyConn(SCliConn* conn, bool clear) {
+  SCliThrd* pThrd = conn->hostThrd;
   tTrace("%s conn %p remove from conn pool", CONN_GET_INST_LABEL(conn), conn);
   QUEUE_REMOVE(&conn->q);
   QUEUE_INIT(&conn->q);
   transRemoveExHandle(transGetRefMgt(), conn->refId);
-
   conn->refId = -1;
-  if (conn->task != NULL) transDQCancel(((SCliThrd*)conn->hostThrd)->timeoutQueue, conn->task);
+
+  if (conn->task != NULL) {
+    transDQCancel(pThrd->timeoutQueue, conn->task);
+    conn->task = NULL;
+  }
+  if (conn->timer != NULL) {
+    uv_timer_stop(conn->timer);
+    taosArrayPush(pThrd->timerList, &conn->timer);
+    conn->timer->data = NULL;
+    conn->timer = NULL;
+  }
 
   if (clear) {
     if (!uv_is_closing((uv_handle_t*)conn->stream)) {
@@ -673,8 +684,15 @@ static void cliDestroy(uv_handle_t* handle) {
   if (uv_handle_get_type(handle) != UV_TCP || handle->data == NULL) {
     return;
   }
-
   SCliConn* conn = handle->data;
+  SCliThrd* pThrd = conn->hostThrd;
+  if (conn->timer != NULL) {
+    uv_timer_stop(conn->timer);
+    taosArrayPush(pThrd->timerList, &conn->timer);
+    conn->timer->data = NULL;
+    conn->timer = NULL;
+  }
+
   transRemoveExHandle(transGetRefMgt(), conn->refId);
   taosMemoryFree(conn->ip);
   conn->stream->data = NULL;
@@ -764,6 +782,19 @@ void cliSend(SCliConn* pConn) {
     CONN_SET_PERSIST_BY_APP(pConn);
   }
 
+  if (pTransInst->startTimer != NULL && pTransInst->startTimer(0, pMsg->msgType)) {
+    uv_timer_t* timer = taosArrayGetSize(pThrd->timerList) > 0 ? *(uv_timer_t**)taosArrayPop(pThrd->timerList) : NULL;
+    if (timer == NULL) {
+      tDebug("no avaiable timer, create");
+      timer = taosMemoryCalloc(1, sizeof(uv_timer_t));
+      uv_timer_init(pThrd->loop, timer);
+    }
+    timer->data = pConn;
+    pConn->timer = timer;
+
+    tGTrace("%s conn %p start timer for msg:%s", CONN_GET_INST_LABEL(pConn), pConn, TMSG_INFO(pMsg->msgType));
+    uv_timer_start((uv_timer_t*)pConn->timer, cliReadTimeoutCb, TRANS_READ_TIMEOUT, 0);
+  }
   uv_write_t* req = transReqQueuePush(&pConn->wreqQueue);
   uv_write(req, (uv_stream_t*)pConn->stream, &wb, 1, cliSendCb);
   return;
@@ -781,8 +812,8 @@ void cliConnCb(uv_connect_t* req, int status) {
   }
   // int addrlen = sizeof(pConn->addr);
   struct sockaddr peername, sockname;
-  int             addrlen = sizeof(peername);
 
+  int addrlen = sizeof(peername);
   uv_tcp_getpeername((uv_tcp_t*)pConn->stream, &peername, &addrlen);
   transGetSockDebugInfo(&peername, pConn->dst);
 
@@ -806,7 +837,6 @@ static void cliHandleQuit(SCliMsg* pMsg, SCliThrd* pThrd) {
   tDebug("cli work thread %p start to quit", pThrd);
   destroyCmsg(pMsg);
   destroyConnPool(pThrd->pool);
-  uv_timer_stop(&pThrd->timer);
   uv_walk(pThrd->loop, cliWalkCb, NULL);
 }
 static void cliHandleRelease(SCliMsg* pMsg, SCliThrd* pThrd) {
@@ -879,8 +909,8 @@ void cliMayCvtFqdnToIp(SEpSet* pEpSet, SCvtAddr* pCvtAddr) {
   }
 }
 void cliHandleReq(SCliMsg* pMsg, SCliThrd* pThrd) {
-  STransConnCtx* pCtx = pMsg->ctx;
   STrans*        pTransInst = pThrd->pTransInst;
+  STransConnCtx* pCtx = pMsg->ctx;
 
   cliMayCvtFqdnToIp(&pCtx->epSet, &pThrd->cvtAddr);
   if (!EPSET_IS_VALID(&pCtx->epSet)) {
@@ -964,37 +994,9 @@ static void cliAsyncCb(uv_async_t* handle) {
   if (count >= 2) {
     tTrace("cli process batch size:%d", count);
   }
-  if (pThrd->stopMsg != NULL) cliHandleQuit(pThrd->stopMsg, pThrd);
-}
-static void cliIdleCb(uv_idle_t* handle) {
-  SCliThrd* thrd = handle->data;
-  tTrace("do idle work");
+  // if (!uv_is_active((uv_handle_t*)pThrd->prepare)) uv_prepare_start(pThrd->prepare, cliPrepareCb);
 
-  SAsyncPool* pool = thrd->asyncPool;
-  for (int i = 0; i < pool->nAsync; i++) {
-    uv_async_t* async = &(pool->asyncs[i]);
-    SAsyncItem* item = async->data;
-
-    queue wq;
-    taosThreadMutexLock(&item->mtx);
-    QUEUE_MOVE(&item->qmsg, &wq);
-    taosThreadMutexUnlock(&item->mtx);
-
-    int count = 0;
-    while (!QUEUE_IS_EMPTY(&wq)) {
-      queue* h = QUEUE_HEAD(&wq);
-      QUEUE_REMOVE(h);
-
-      SCliMsg* pMsg = QUEUE_DATA(h, SCliMsg, q);
-      if (pMsg == NULL) {
-        continue;
-      }
-      (*cliAsyncHandle[pMsg->type])(pMsg, thrd);
-      count++;
-    }
-  }
-  tTrace("prepare work end");
-  if (thrd->stopMsg != NULL) cliHandleQuit(thrd->stopMsg, thrd);
+  if (pThrd->stopMsg != NULL) cliHandleQuit(pThrd->stopMsg, pThrd);
 }
 static void cliPrepareCb(uv_prepare_t* handle) {
   SCliThrd* thrd = handle->data;
@@ -1085,18 +1087,19 @@ static SCliThrd* createThrdObj() {
   uv_loop_init(pThrd->loop);
 
   pThrd->asyncPool = transAsyncPoolCreate(pThrd->loop, 5, pThrd, cliAsyncCb);
-  uv_timer_init(pThrd->loop, &pThrd->timer);
-  pThrd->timer.data = pThrd;
-
-  // pThrd->idle = taosMemoryCalloc(1, sizeof(uv_idle_t));
-  // uv_idle_init(pThrd->loop, pThrd->idle);
-  // pThrd->idle->data = pThrd;
-  // uv_idle_start(pThrd->idle, cliIdleCb);
 
   pThrd->prepare = taosMemoryCalloc(1, sizeof(uv_prepare_t));
   uv_prepare_init(pThrd->loop, pThrd->prepare);
   pThrd->prepare->data = pThrd;
-  uv_prepare_start(pThrd->prepare, cliPrepareCb);
+  // uv_prepare_start(pThrd->prepare, cliPrepareCb);
+
+  int32_t timerSize = 512;
+  pThrd->timerList = taosArrayInit(timerSize, sizeof(void*));
+  for (int i = 0; i < timerSize; i++) {
+    uv_timer_t* timer = taosMemoryCalloc(1, sizeof(uv_timer_t));
+    uv_timer_init(pThrd->loop, timer);
+    taosArrayPush(pThrd->timerList, &timer);
+  }
 
   pThrd->pool = createConnPool(4);
   transDQCreate(pThrd->loop, &pThrd->delayQueue);
@@ -1120,7 +1123,11 @@ static void destroyThrdObj(SCliThrd* pThrd) {
   transDQDestroy(pThrd->delayQueue, destroyCmsg);
   transDQDestroy(pThrd->timeoutQueue, NULL);
 
-  taosMemoryFree(pThrd->idle);
+  for (int i = 0; i < taosArrayGetSize(pThrd->timerList); i++) {
+    uv_timer_t* timer = taosArrayGetP(pThrd->timerList, i);
+    taosMemoryFree(timer);
+  }
+  taosArrayDestroy(pThrd->timerList);
   taosMemoryFree(pThrd->prepare);
   taosMemoryFree(pThrd->loop);
   taosMemoryFree(pThrd);
diff --git a/source/os/src/osAtomic.c b/source/os/src/osAtomic.c
index d1d768fbcc5ecb21e9287c1f327843020e0f379c..a9eb23abba4066bad4c54322fa0b65aa63458f71 100644
--- a/source/os/src/osAtomic.c
+++ b/source/os/src/osAtomic.c
@@ -193,7 +193,13 @@ void* interlocked_sub_fetch_ptr(void* volatile* ptr, void* val) {
 }
 int32_t interlocked_fetch_sub_32(int32_t volatile* ptr, int32_t val) { return _InterlockedExchangeAdd(ptr, -val); }
 
-int64_t interlocked_fetch_sub_64(int64_t volatile* ptr, int64_t val) { return _InterlockedExchangeAdd64(ptr, -val); }
+int64_t interlocked_fetch_sub_64(int64_t volatile* ptr, int64_t val) { 
+#ifdef _TD_WINDOWS_32
+  return _InterlockedExchangeAdd((int32_t volatile*)ptr, -(int32_t)val); 
+#else
+  return _InterlockedExchangeAdd64(ptr, -val); 
+#endif
+}
 
 void* interlocked_fetch_sub_ptr(void* volatile* ptr, void* val) {
 #ifdef WINDOWS
@@ -375,7 +381,11 @@ int32_t atomic_exchange_32(int32_t volatile* ptr, int32_t val) {
 
 int64_t atomic_exchange_64(int64_t volatile* ptr, int64_t val) {
 #ifdef WINDOWS
+#ifdef _TD_WINDOWS_32
+  return _InterlockedExchange((int32_t volatile*)(ptr), (int32_t)(val));
+#else
   return _InterlockedExchange64((int64_t volatile*)(ptr), (int64_t)(val));
+#endif
 #elif defined(_TD_NINGSI_60)
   return atomic_exchange_64_impl((int64_t*)ptr, (int64_t)val);
 #else
@@ -529,7 +539,11 @@ int32_t atomic_fetch_add_32(int32_t volatile* ptr, int32_t val) {
 
 int64_t atomic_fetch_add_64(int64_t volatile* ptr, int64_t val) {
 #ifdef WINDOWS
+#ifdef _TD_WINDOWS_32
+  return _InterlockedExchangeAdd((int32_t volatile*)(ptr), (int32_t)(val));
+#else
   return _InterlockedExchangeAdd64((int64_t volatile*)(ptr), (int64_t)(val));
+#endif
 #elif defined(_TD_NINGSI_60)
   return __sync_fetch_and_add((ptr), (val));
 #else
@@ -631,7 +645,11 @@ int32_t atomic_fetch_sub_32(int32_t volatile* ptr, int32_t val) {
 
 int64_t atomic_fetch_sub_64(int64_t volatile* ptr, int64_t val) {
 #ifdef WINDOWS
+#ifdef _TD_WINDOWS_32
+  return _InterlockedExchangeAdd((int32_t volatile*)(ptr), -(int32_t)(val));
+#else
   return _InterlockedExchangeAdd64((int64_t volatile*)(ptr), -(int64_t)(val));
+#endif
 #elif defined(_TD_NINGSI_60)
   return __sync_fetch_and_sub((ptr), (val));
 #else
diff --git a/source/os/src/osSocket.c b/source/os/src/osSocket.c
index 98dfaa4972b001ed9a30369e7390222e637a60fc..f34032056cba6a2e2160e7b7a54abe79a959d301 100644
--- a/source/os/src/osSocket.c
+++ b/source/os/src/osSocket.c
@@ -333,7 +333,7 @@ int32_t taosWriteMsg(TdSocketPtr pSocket, void *buf, int32_t nbytes) {
     return -1;
   }
   int32_t nleft, nwritten;
-  char *  ptr = (char *)buf;
+  char   *ptr = (char *)buf;
 
   nleft = nbytes;
 
@@ -362,7 +362,7 @@ int32_t taosReadMsg(TdSocketPtr pSocket, void *buf, int32_t nbytes) {
     return -1;
   }
   int32_t nleft, nread;
-  char *  ptr = (char *)buf;
+  char   *ptr = (char *)buf;
 
   nleft = nbytes;
 
@@ -912,7 +912,7 @@ uint32_t taosGetIpv4FromFqdn(const char *fqdn) {
 
   int32_t ret = getaddrinfo(fqdn, NULL, &hints, &result);
   if (result) {
-    struct sockaddr *   sa = result->ai_addr;
+    struct sockaddr    *sa = result->ai_addr;
     struct sockaddr_in *si = (struct sockaddr_in *)sa;
     struct in_addr      ia = si->sin_addr;
     uint32_t            ip = ia.s_addr;
diff --git a/source/os/src/osString.c b/source/os/src/osString.c
index 26aafd743fb7ad8a89e0f73674d25eb98a884147..db3aaa49a6351e4b6a26a4a7b601f4e267c4f4c7 100644
--- a/source/os/src/osString.c
+++ b/source/os/src/osString.c
@@ -48,7 +48,7 @@ char *strsep(char **stringp, const char *delim) {
   /* NOTREACHED */
 }
 /* Duplicate a string, up to at most size characters */
-char *strndup(const char *s, size_t size) {
+char *strndup(const char *s, int size) {
   size_t l;
   char * s2;
   l = strlen(s);
@@ -62,7 +62,7 @@ char *strndup(const char *s, size_t size) {
 }
 /* Copy no more than N characters of SRC to DEST, returning the address of
    the terminating '\0' in DEST, if any, or else DEST + N.  */
-char *stpncpy(char *dest, const char *src, size_t n) {
+char *stpncpy(char *dest, const char *src, int n) {
   size_t size = strnlen(src, n);
   memcpy(dest, src, size);
   dest += size;
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index e4b6983dcb7fae180f00808b19260849db2d9df5..4780d85a303fb9609f8ab10cecad42affd8c67fe 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -52,6 +52,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_RPC_NETWORK_UNAVAIL,          "Unable to establish c
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_FQDN_ERROR,               "Unable to resolve FQDN")
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_PORT_EADDRINUSE,          "Port already in use")
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_BROKEN_LINK,              "Conn is broken")
+TAOS_DEFINE_ERROR(TSDB_CODE_RPC_TIMEOUT,                  "Conn read timeout")
 
 //common & util
 TAOS_DEFINE_ERROR(TSDB_CODE_TIME_UNSYNCED,                "Client and server's time is not synchronized")
diff --git a/tests/docs-examples-test/go.sh b/tests/docs-examples-test/go.sh
new file mode 100644
index 0000000000000000000000000000000000000000..185661e8a7d223485ca8a595996a7dbdb617d257
--- /dev/null
+++ b/tests/docs-examples-test/go.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+
+set -e
+
+taosd >>/dev/null 2>&1 &
+taosadapter >>/dev/null 2>&1 &
+
+cd ../../docs/examples/go
+
+go mod tidy
+
+go run ./connect/afconn/main.go
+go run ./connect/cgoexample/main.go
+go run ./connect/restexample/main.go
+
+taos -s "drop database if exists test"
+go run ./insert/json/main.go
+taos -s "drop database if exists test"
+go run ./insert/line/main.go
+taos -s "drop database if exists power"
+go run ./insert/sql/main.go
+taos -s "drop database if exists power"
+go run ./insert/stmt/main.go
+taos -s "drop database if exists test"
+go run ./insert/telnet/main.go
+
+go run ./query/sync/main.go
+
+taos -s "drop topic if exists example_tmq_topic"
+taos -s "drop database if exists example_tmq"
+go run ./sub/main.go
diff --git a/tests/pytest/util/sql.py b/tests/pytest/util/sql.py
index 4c50af6bac28e8d0d6d315189a1204725f7a0744..753c41e094701271ca3b49a53eabde1461bd1e08 100644
--- a/tests/pytest/util/sql.py
+++ b/tests/pytest/util/sql.py
@@ -84,10 +84,10 @@ class TDSql:
             self.queryResult = None
             tdLog.info("sql:%s, expect error occured" % (sql))
 
-    def query(self, sql, row_tag=None,queyTimes=10):
+    def query(self, sql, row_tag=None,queryTimes=10):
         self.sql = sql
         i=1
-        while i <= queyTimes:
+        while i <= queryTimes:
             try:
                 self.cursor.execute(sql)
                 self.queryResult = self.cursor.fetchall()
@@ -97,26 +97,15 @@ class TDSql:
                     return self.queryResult
                 return self.queryRows
             except Exception as e:
-                i+=1
                 tdLog.notice("Try to query again, query times: %d "%i)
+                if i == queryTimes:
+                    caller = inspect.getframeinfo(inspect.stack()[1][0])
+                    args = (caller.filename, caller.lineno, sql, repr(e))
+                    tdLog.notice("%s(%d) failed: sql:%s, %s" % args)
+                    raise Exception(repr(e))   
+                i+=1
                 time.sleep(1)
                 pass
-        else:
-            try:
-                tdLog.notice("Try the last query ")
-                self.cursor.execute(sql)
-                self.queryResult = self.cursor.fetchall()
-                self.queryRows = len(self.queryResult)
-                self.queryCols = len(self.cursor.description)
-                if row_tag:
-                    return self.queryResult
-                return self.queryRows
-            except Exception as e:
-                caller = inspect.getframeinfo(inspect.stack()[1][0])
-                args = (caller.filename, caller.lineno, sql, repr(e))
-                tdLog.notice("%s(%d) failed: sql:%s, %s" % args)
-                traceback.print_exc()
-                raise Exception(repr(e))
 
 
     def is_err_sql(self, sql):
@@ -305,28 +294,23 @@ class TDSql:
                 time.sleep(1)
                 continue
 
-    def execute(self, sql,queyTimes=10):
+    def execute(self, sql,queryTimes=10):
         self.sql = sql
         i=1
-        while i <= queyTimes:
+        while i <= queryTimes:
             try:
                 self.affectedRows = self.cursor.execute(sql)
                 return self.affectedRows
             except Exception as e:
-                i+=1
                 tdLog.notice("Try to execute sql again, query times: %d "%i)
+                if i == queryTimes:
+                    caller = inspect.getframeinfo(inspect.stack()[1][0])
+                    args = (caller.filename, caller.lineno, sql, repr(e))
+                    tdLog.notice("%s(%d) failed: sql:%s, %s" % args)
+                    raise Exception(repr(e))                    
+                i+=1
                 time.sleep(1)
                 pass
-        else:
-            try:
-                tdLog.notice("Try the last execute sql ")
-                self.affectedRows = self.cursor.execute(sql)
-                return self.affectedRows
-            except Exception as e:
-                caller = inspect.getframeinfo(inspect.stack()[1][0])
-                args = (caller.filename, caller.lineno, sql, repr(e))
-                tdLog.notice("%s(%d) failed: sql:%s, %s" % args)
-                raise Exception(repr(e))
 
     def checkAffectedRows(self, expectAffectedRows):
         if self.affectedRows != expectAffectedRows:
diff --git a/tests/script/jenkins/basic.txt b/tests/script/jenkins/basic.txt
index 356eaed57e1518a3489010488d47a6d96b83fec4..0a859b20458b7118fd2b517e9cbda26e42c1bf16 100644
--- a/tests/script/jenkins/basic.txt
+++ b/tests/script/jenkins/basic.txt
@@ -179,6 +179,7 @@
 ./test.sh -f tsim/query/scalarFunction.sim
 ./test.sh -f tsim/query/scalarNull.sim
 ./test.sh -f tsim/query/session.sim
+./test.sh -f tsim/query/udf.sim
 
 # ---- qnode
 ./test.sh -f tsim/qnode/basic1.sim
diff --git a/tests/script/sh/compile_udf.sh b/tests/script/sh/compile_udf.sh
index 12e922b2df245399f498c6454d49fe54b405eecc..5ff3f2bc8a21b15281a7b687d7dd9a0eb97ca7f8 100755
--- a/tests/script/sh/compile_udf.sh
+++ b/tests/script/sh/compile_udf.sh
@@ -3,8 +3,8 @@ set +e
 rm -rf /tmp/udf/libbitand.so /tmp/udf/libsqrsum.so
 mkdir -p /tmp/udf
 echo "compile udf bit_and and sqr_sum"
-gcc -fPIC -shared sh/bit_and.c -o /tmp/udf/libbitand.so
-gcc -fPIC -shared sh/sqr_sum.c -o /tmp/udf/libsqrsum.so
+gcc -fPIC -shared sh/bit_and.c -I../../include/libs/function/ -I../../include/client -I../../include/util   -o /tmp/udf/libbitand.so
+gcc -fPIC -shared sh/sqr_sum.c -I../../include/libs/function/ -I../../include/client -I../../include/util   -o /tmp/udf/libsqrsum.so
 echo "debug show /tmp/udf/*.so"
 ls /tmp/udf/*.so
 
diff --git a/tests/script/tsim/parser/function.sim b/tests/script/tsim/parser/function.sim
index 110901a6e17ec5c429863827f777b0226bf91bd2..9423f53e3a63ec225660bc21e6663e1cb89998c9 100644
--- a/tests/script/tsim/parser/function.sim
+++ b/tests/script/tsim/parser/function.sim
@@ -327,8 +327,8 @@ endi
 
 print =================>td-2610
 sql select stddev(k) from tm2 where ts='2020-12-29 18:46:19.109'
-if $rows != 0 then
-  print expect 0, actual:$rows
+if $rows != 1 then
+  print expect 1, actual:$rows
   return -1
 endi
 sql select twa(k) from tm2 where ts='2020-12-29 18:46:19.109'
@@ -406,7 +406,7 @@ if $data00 != 1.378704626 then
 endi
 
 sql select stddev(c) from m1
-if $rows != 0 then
+if $rows != 1 then
   return -1
 endi
 
diff --git a/tests/script/tsim/stream/drop_stream.sim b/tests/script/tsim/stream/drop_stream.sim
index bdd88bf780ba7fe916b39683d8a65e0d9d503119..747f59fe85084ba08a7b0679b8dc0363cb7c8db4 100644
--- a/tests/script/tsim/stream/drop_stream.sim
+++ b/tests/script/tsim/stream/drop_stream.sim
@@ -45,70 +45,70 @@ sql create table test.scalar_function_tb1 (ts timestamp, c1 tinyint, c2 smallint
 sql create table if not exists scalar_stb (ts timestamp, c1 int, c2 double, c3 binary(20), c4 binary(20), c5 nchar(20)) tags (t1 int);
 sql create table scalar_ct1 using scalar_stb tags(10);
 sql create table if not exists scalar_tb (ts timestamp, c1 int, c2 double, c3 binary(20), c4 binary(20), c5 nchar(20));
-sql create stream stb_abs_stream trigger at_once into output_abs_stb as select ts, abs(c1), abs(c2), c3 from scalar_stb;
+sql create stream stb_abs_stream trigger at_once into output_abs_stb as select ts, abs(c1), abs(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_abs_stream trigger at_once into output_abs_ctb as select ts, abs(c1), abs(c2), c3 from scalar_ct1;
 sql create stream tb_abs_stream trigger at_once into output_abs_tb as select ts, abs(c1), abs(c2), c3 from scalar_tb;
-sql create stream stb_acos_stream trigger at_once into output_acos_stb as select ts, acos(c1), acos(c2), c3 from scalar_stb;
+sql create stream stb_acos_stream trigger at_once into output_acos_stb as select ts, acos(c1), acos(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_acos_stream trigger at_once into output_acos_ctb as select ts, acos(c1), acos(c2), c3 from scalar_ct1;
 sql create stream tb_acos_stream trigger at_once into output_acos_tb as select ts, acos(c1), acos(c2), c3 from scalar_tb;
-sql create stream stb_asin_stream trigger at_once into output_asin_stb as select ts, asin(c1), asin(c2), c3 from scalar_stb;
+sql create stream stb_asin_stream trigger at_once into output_asin_stb as select ts, asin(c1), asin(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_asin_stream trigger at_once into output_asin_ctb as select ts, asin(c1), asin(c2), c3 from scalar_ct1;
 sql create stream tb_asin_stream trigger at_once into output_asin_tb as select ts, asin(c1), asin(c2), c3 from scalar_tb;
-sql create stream stb_atan_stream trigger at_once into output_atan_stb as select ts, atan(c1), atan(c2), c3 from scalar_stb;
+sql create stream stb_atan_stream trigger at_once into output_atan_stb as select ts, atan(c1), atan(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_atan_stream trigger at_once into output_atan_ctb as select ts, atan(c1), atan(c2), c3 from scalar_ct1;
 sql create stream tb_atan_stream trigger at_once into output_atan_tb as select ts, atan(c1), atan(c2), c3 from scalar_tb;
-sql create stream stb_ceil_stream trigger at_once into output_ceil_stb as select ts, ceil(c1), ceil(c2), c3 from scalar_stb;
+sql create stream stb_ceil_stream trigger at_once into output_ceil_stb as select ts, ceil(c1), ceil(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_ceil_stream trigger at_once into output_ceil_ctb as select ts, ceil(c1), ceil(c2), c3 from scalar_ct1;
 sql create stream tb_ceil_stream trigger at_once into output_ceil_tb as select ts, ceil(c1), ceil(c2), c3 from scalar_tb;
-sql create stream stb_cos_stream trigger at_once into output_cos_stb as select ts, cos(c1), cos(c2), c3 from scalar_stb;
+sql create stream stb_cos_stream trigger at_once into output_cos_stb as select ts, cos(c1), cos(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_cos_stream trigger at_once into output_cos_ctb as select ts, cos(c1), cos(c2), c3 from scalar_ct1;
 sql create stream tb_cos_stream trigger at_once into output_cos_tb as select ts, cos(c1), cos(c2), c3 from scalar_tb;
-sql create stream stb_floor_stream trigger at_once into output_floor_stb as select ts, floor(c1), floor(c2), c3 from scalar_stb;
+sql create stream stb_floor_stream trigger at_once into output_floor_stb as select ts, floor(c1), floor(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_floor_stream trigger at_once into output_floor_ctb as select ts, floor(c1), floor(c2), c3 from scalar_ct1;
 sql create stream tb_floor_stream trigger at_once into output_floor_tb as select ts, floor(c1), floor(c2), c3 from scalar_tb;
-sql create stream stb_log_stream trigger at_once into output_log_stb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_stb;
+sql create stream stb_log_stream trigger at_once into output_log_stb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_log_stream trigger at_once into output_log_ctb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_ct1;
 sql create stream tb_log_stream trigger at_once into output_log_tb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_tb;
-sql create stream stb_pow_stream trigger at_once into output_pow_stb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_stb;
+sql create stream stb_pow_stream trigger at_once into output_pow_stb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_pow_stream trigger at_once into output_pow_ctb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_ct1;
 sql create stream tb_pow_stream trigger at_once into output_pow_tb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_tb;
-sql create stream stb_round_stream trigger at_once into output_round_stb as select ts, round(c1), round(c2), c3 from scalar_stb;
+sql create stream stb_round_stream trigger at_once into output_round_stb as select ts, round(c1), round(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_round_stream trigger at_once into output_round_ctb as select ts, round(c1), round(c2), c3 from scalar_ct1;
 sql create stream tb_round_stream trigger at_once into output_round_tb as select ts, round(c1), round(c2), c3 from scalar_tb;
-sql create stream stb_sin_stream trigger at_once into output_sin_stb as select ts, sin(c1), sin(c2), c3 from scalar_stb;
+sql create stream stb_sin_stream trigger at_once into output_sin_stb as select ts, sin(c1), sin(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_sin_stream trigger at_once into output_sin_ctb as select ts, sin(c1), sin(c2), c3 from scalar_ct1;
 sql create stream tb_sin_stream trigger at_once into output_sin_tb as select ts, sin(c1), sin(c2), c3 from scalar_tb;
-sql create stream stb_sqrt_stream trigger at_once into output_sqrt_stb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_stb;
+sql create stream stb_sqrt_stream trigger at_once into output_sqrt_stb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_sqrt_stream trigger at_once into output_sqrt_ctb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_ct1;
 sql create stream tb_sqrt_stream trigger at_once into output_sqrt_tb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_tb;
-sql create stream stb_tan_stream trigger at_once into output_tan_stb as select ts, tan(c1), tan(c2), c3 from scalar_stb;
+sql create stream stb_tan_stream trigger at_once into output_tan_stb as select ts, tan(c1), tan(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_tan_stream trigger at_once into output_tan_ctb as select ts, tan(c1), tan(c2), c3 from scalar_ct1;
 sql create stream tb_tan_stream trigger at_once into output_tan_tb as select ts, tan(c1), tan(c2), c3 from scalar_tb;
-sql create stream stb_char_length_stream into output_char_length_stb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_stb;
+sql create stream stb_char_length_stream into output_char_length_stb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_stb partition by tbname;
 sql create stream ctb_char_length_stream into output_char_length_ctb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_ct1;
 sql create stream tb_char_length_stream into output_char_length_tb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_tb;
-sql create stream stb_concat_stream into output_concat_stb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_stb;
+sql create stream stb_concat_stream into output_concat_stb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_stb partition by tbname;
 sql create stream ctb_concat_stream into output_concat_ctb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_ct1;
 sql create stream tb_concat_stream into output_concat_tb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_tb;
-sql create stream stb_concat_ws_stream into output_concat_ws_stb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_stb;
+sql create stream stb_concat_ws_stream into output_concat_ws_stb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_stb partition by tbname;
 sql create stream ctb_concat_ws_stream into output_concat_ws_ctb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_ct1;
 sql create stream tb_concat_ws_stream into output_concat_ws_tb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_tb;
-sql create stream stb_length_stream into output_length_stb as select ts, length(c3), length(c4), length(c5) from scalar_stb;
+sql create stream stb_length_stream into output_length_stb as select ts, length(c3), length(c4), length(c5) from scalar_stb partition by tbname;
 sql create stream ctb_length_stream into output_length_ctb as select ts, length(c3), length(c4), length(c5) from scalar_ct1;
 sql create stream tb_length_stream into output_length_tb as select ts, length(c3), length(c4), length(c5) from scalar_tb;
-sql create stream stb_lower_stream into output_lower_stb as select ts, lower(c3), lower(c4), lower(c5) from scalar_stb;
+sql create stream stb_lower_stream into output_lower_stb as select ts, lower(c3), lower(c4), lower(c5) from scalar_stb partition by tbname;
 sql create stream ctb_lower_stream into output_lower_ctb as select ts, lower(c3), lower(c4), lower(c5) from scalar_ct1;
 sql create stream tb_lower_stream into output_lower_tb as select ts, lower(c3), lower(c4), lower(c5) from scalar_tb;
-sql create stream stb_ltrim_stream into output_ltrim_stb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_stb;
+sql create stream stb_ltrim_stream into output_ltrim_stb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_stb partition by tbname;
 sql create stream ctb_ltrim_stream into output_ltrim_ctb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_ct1;
 sql create stream tb_ltrim_stream into output_ltrim_tb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_tb;
-sql create stream stb_rtrim_stream into output_rtrim_stb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_stb;
+sql create stream stb_rtrim_stream into output_rtrim_stb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_stb partition by tbname;
 sql create stream ctb_rtrim_stream into output_rtrim_ctb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_ct1;
 sql create stream tb_rtrim_stream into output_rtrim_tb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_tb;
-sql create stream stb_substr_stream into output_substr_stb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_stb;
+sql create stream stb_substr_stream into output_substr_stb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_stb partition by tbname;
 sql create stream ctb_substr_stream into output_substr_ctb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_ct1;
 sql create stream tb_substr_stream into output_substr_tb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_tb;
-sql create stream stb_upper_stream into output_upper_stb as select ts, upper(c3), upper(c4), upper(c5) from scalar_stb;
+sql create stream stb_upper_stream into output_upper_stb as select ts, upper(c3), upper(c4), upper(c5) from scalar_stb partition by tbname;
 sql create stream ctb_upper_stream into output_upper_ctb as select ts, upper(c3), upper(c4), upper(c5) from scalar_ct1;
 sql create stream tb_upper_stream into output_upper_tb as select ts, upper(c3), upper(c4), upper(c5) from scalar_tb;
 sql insert into scalar_ct1 values (1656668180503, 100, 100.1, "beijing", "taos", "Taos");
@@ -136,70 +136,70 @@ sql create table test.scalar_function_tb1 (ts timestamp, c1 tinyint, c2 smallint
 sql create table if not exists scalar_stb (ts timestamp, c1 int, c2 double, c3 binary(20), c4 binary(20), c5 nchar(20)) tags (t1 int);
 sql create table scalar_ct1 using scalar_stb tags(10);
 sql create table if not exists scalar_tb (ts timestamp, c1 int, c2 double, c3 binary(20), c4 binary(20), c5 nchar(20));
-sql create stream stb_abs_stream trigger at_once into output_abs_stb as select ts, abs(c1), abs(c2), c3 from scalar_stb;
+sql create stream stb_abs_stream trigger at_once into output_abs_stb as select ts, abs(c1), abs(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_abs_stream trigger at_once into output_abs_ctb as select ts, abs(c1), abs(c2), c3 from scalar_ct1;
 sql create stream tb_abs_stream trigger at_once into output_abs_tb as select ts, abs(c1), abs(c2), c3 from scalar_tb;
-sql create stream stb_acos_stream trigger at_once into output_acos_stb as select ts, acos(c1), acos(c2), c3 from scalar_stb;
+sql create stream stb_acos_stream trigger at_once into output_acos_stb as select ts, acos(c1), acos(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_acos_stream trigger at_once into output_acos_ctb as select ts, acos(c1), acos(c2), c3 from scalar_ct1;
 sql create stream tb_acos_stream trigger at_once into output_acos_tb as select ts, acos(c1), acos(c2), c3 from scalar_tb;
-sql create stream stb_asin_stream trigger at_once into output_asin_stb as select ts, asin(c1), asin(c2), c3 from scalar_stb;
+sql create stream stb_asin_stream trigger at_once into output_asin_stb as select ts, asin(c1), asin(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_asin_stream trigger at_once into output_asin_ctb as select ts, asin(c1), asin(c2), c3 from scalar_ct1;
 sql create stream tb_asin_stream trigger at_once into output_asin_tb as select ts, asin(c1), asin(c2), c3 from scalar_tb;
-sql create stream stb_atan_stream trigger at_once into output_atan_stb as select ts, atan(c1), atan(c2), c3 from scalar_stb;
+sql create stream stb_atan_stream trigger at_once into output_atan_stb as select ts, atan(c1), atan(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_atan_stream trigger at_once into output_atan_ctb as select ts, atan(c1), atan(c2), c3 from scalar_ct1;
 sql create stream tb_atan_stream trigger at_once into output_atan_tb as select ts, atan(c1), atan(c2), c3 from scalar_tb;
-sql create stream stb_ceil_stream trigger at_once into output_ceil_stb as select ts, ceil(c1), ceil(c2), c3 from scalar_stb;
+sql create stream stb_ceil_stream trigger at_once into output_ceil_stb as select ts, ceil(c1), ceil(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_ceil_stream trigger at_once into output_ceil_ctb as select ts, ceil(c1), ceil(c2), c3 from scalar_ct1;
 sql create stream tb_ceil_stream trigger at_once into output_ceil_tb as select ts, ceil(c1), ceil(c2), c3 from scalar_tb;
-sql create stream stb_cos_stream trigger at_once into output_cos_stb as select ts, cos(c1), cos(c2), c3 from scalar_stb;
+sql create stream stb_cos_stream trigger at_once into output_cos_stb as select ts, cos(c1), cos(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_cos_stream trigger at_once into output_cos_ctb as select ts, cos(c1), cos(c2), c3 from scalar_ct1;
 sql create stream tb_cos_stream trigger at_once into output_cos_tb as select ts, cos(c1), cos(c2), c3 from scalar_tb;
-sql create stream stb_floor_stream trigger at_once into output_floor_stb as select ts, floor(c1), floor(c2), c3 from scalar_stb;
+sql create stream stb_floor_stream trigger at_once into output_floor_stb as select ts, floor(c1), floor(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_floor_stream trigger at_once into output_floor_ctb as select ts, floor(c1), floor(c2), c3 from scalar_ct1;
 sql create stream tb_floor_stream trigger at_once into output_floor_tb as select ts, floor(c1), floor(c2), c3 from scalar_tb;
-sql create stream stb_log_stream trigger at_once into output_log_stb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_stb;
+sql create stream stb_log_stream trigger at_once into output_log_stb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_log_stream trigger at_once into output_log_ctb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_ct1;
 sql create stream tb_log_stream trigger at_once into output_log_tb as select ts, log(c1, 2), log(c2, 2), c3 from scalar_tb;
-sql create stream stb_pow_stream trigger at_once into output_pow_stb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_stb;
+sql create stream stb_pow_stream trigger at_once into output_pow_stb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_pow_stream trigger at_once into output_pow_ctb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_ct1;
 sql create stream tb_pow_stream trigger at_once into output_pow_tb as select ts, pow(c1, 2), pow(c2, 2), c3 from scalar_tb;
-sql create stream stb_round_stream trigger at_once into output_round_stb as select ts, round(c1), round(c2), c3 from scalar_stb;
+sql create stream stb_round_stream trigger at_once into output_round_stb as select ts, round(c1), round(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_round_stream trigger at_once into output_round_ctb as select ts, round(c1), round(c2), c3 from scalar_ct1;
 sql create stream tb_round_stream trigger at_once into output_round_tb as select ts, round(c1), round(c2), c3 from scalar_tb;
-sql create stream stb_sin_stream trigger at_once into output_sin_stb as select ts, sin(c1), sin(c2), c3 from scalar_stb;
+sql create stream stb_sin_stream trigger at_once into output_sin_stb as select ts, sin(c1), sin(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_sin_stream trigger at_once into output_sin_ctb as select ts, sin(c1), sin(c2), c3 from scalar_ct1;
 sql create stream tb_sin_stream trigger at_once into output_sin_tb as select ts, sin(c1), sin(c2), c3 from scalar_tb;
-sql create stream stb_sqrt_stream trigger at_once into output_sqrt_stb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_stb;
+sql create stream stb_sqrt_stream trigger at_once into output_sqrt_stb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_sqrt_stream trigger at_once into output_sqrt_ctb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_ct1;
 sql create stream tb_sqrt_stream trigger at_once into output_sqrt_tb as select ts, sqrt(c1), sqrt(c2), c3 from scalar_tb;
-sql create stream stb_tan_stream trigger at_once into output_tan_stb as select ts, tan(c1), tan(c2), c3 from scalar_stb;
+sql create stream stb_tan_stream trigger at_once into output_tan_stb as select ts, tan(c1), tan(c2), c3 from scalar_stb partition by tbname;
 sql create stream ctb_tan_stream trigger at_once into output_tan_ctb as select ts, tan(c1), tan(c2), c3 from scalar_ct1;
 sql create stream tb_tan_stream trigger at_once into output_tan_tb as select ts, tan(c1), tan(c2), c3 from scalar_tb;
-sql create stream stb_char_length_stream into output_char_length_stb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_stb;
+sql create stream stb_char_length_stream into output_char_length_stb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_stb partition by tbname;
 sql create stream ctb_char_length_stream into output_char_length_ctb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_ct1;
 sql create stream tb_char_length_stream into output_char_length_tb as select ts, char_length(c3), char_length(c4), char_length(c5) from scalar_tb;
-sql create stream stb_concat_stream into output_concat_stb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_stb;
+sql create stream stb_concat_stream into output_concat_stb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_stb partition by tbname;
 sql create stream ctb_concat_stream into output_concat_ctb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_ct1;
 sql create stream tb_concat_stream into output_concat_tb as select ts, concat(c3, c4), concat(c3, c5), concat(c4, c5), concat(c3, c4, c5) from scalar_tb;
-sql create stream stb_concat_ws_stream into output_concat_ws_stb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_stb;
+sql create stream stb_concat_ws_stream into output_concat_ws_stb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_stb partition by tbname;
 sql create stream ctb_concat_ws_stream into output_concat_ws_ctb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_ct1;
 sql create stream tb_concat_ws_stream into output_concat_ws_tb as select ts, concat_ws("aND", c3, c4), concat_ws("and", c3, c5), concat_ws("And", c4, c5), concat_ws("AND", c3, c4, c5) from scalar_tb;
-sql create stream stb_length_stream into output_length_stb as select ts, length(c3), length(c4), length(c5) from scalar_stb;
+sql create stream stb_length_stream into output_length_stb as select ts, length(c3), length(c4), length(c5) from scalar_stb partition by tbname;
 sql create stream ctb_length_stream into output_length_ctb as select ts, length(c3), length(c4), length(c5) from scalar_ct1;
 sql create stream tb_length_stream into output_length_tb as select ts, length(c3), length(c4), length(c5) from scalar_tb;
-sql create stream stb_lower_stream into output_lower_stb as select ts, lower(c3), lower(c4), lower(c5) from scalar_stb;
+sql create stream stb_lower_stream into output_lower_stb as select ts, lower(c3), lower(c4), lower(c5) from scalar_stb partition by tbname;
 sql create stream ctb_lower_stream into output_lower_ctb as select ts, lower(c3), lower(c4), lower(c5) from scalar_ct1;
 sql create stream tb_lower_stream into output_lower_tb as select ts, lower(c3), lower(c4), lower(c5) from scalar_tb;
-sql create stream stb_ltrim_stream into output_ltrim_stb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_stb;
+sql create stream stb_ltrim_stream into output_ltrim_stb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_stb partition by tbname;
 sql create stream ctb_ltrim_stream into output_ltrim_ctb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_ct1;
 sql create stream tb_ltrim_stream into output_ltrim_tb as select ts, ltrim(c3), ltrim(c4), ltrim(c5) from scalar_tb;
-sql create stream stb_rtrim_stream into output_rtrim_stb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_stb;
+sql create stream stb_rtrim_stream into output_rtrim_stb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_stb partition by tbname;
 sql create stream ctb_rtrim_stream into output_rtrim_ctb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_ct1;
 sql create stream tb_rtrim_stream into output_rtrim_tb as select ts, rtrim(c3), rtrim(c4), rtrim(c5) from scalar_tb;
-sql create stream stb_substr_stream into output_substr_stb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_stb;
+sql create stream stb_substr_stream into output_substr_stb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_stb partition by tbname;
 sql create stream ctb_substr_stream into output_substr_ctb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_ct1;
 sql create stream tb_substr_stream into output_substr_tb as select ts, substr(c3, 2), substr(c3, 2, 2), substr(c4, 5, 1), substr(c5, 3, 4) from scalar_tb;
-sql create stream stb_upper_stream into output_upper_stb as select ts, upper(c3), upper(c4), upper(c5) from scalar_stb;
+sql create stream stb_upper_stream into output_upper_stb as select ts, upper(c3), upper(c4), upper(c5) from scalar_stb partition by tbname;
 sql create stream ctb_upper_stream into output_upper_ctb as select ts, upper(c3), upper(c4), upper(c5) from scalar_ct1;
 sql create stream tb_upper_stream into output_upper_tb as select ts, upper(c3), upper(c4), upper(c5) from scalar_tb;
 sql insert into scalar_ct1 values (1656668180503, 100, 100.1, "beijing", "taos", "Taos");
diff --git a/tests/script/tsim/sync/3Replica1VgElect.sim b/tests/script/tsim/sync/3Replica1VgElect.sim
index 4e127654ee76dee764e97407baf577fd95e2d585..7cd291e56f6f235f1abc28bb4fb5efbadab09699 100644
--- a/tests/script/tsim/sync/3Replica1VgElect.sim
+++ b/tests/script/tsim/sync/3Replica1VgElect.sim
@@ -48,7 +48,7 @@ endi
 $replica = 3
 $vgroups = 1
 
-print ============= create database
+print ============= create database db
 sql create database db replica $replica vgroups $vgroups
 
 $loop_cnt = 0
@@ -135,7 +135,7 @@ endw
 $totalTblNum = $tbNum * 2
 sleep 1000
 sql show tables
-print ====> expect $totalTblNum and infinsert $rows  in fact 
+print ====> expect $totalTblNum and insert $rows  in fact 
 if $rows != $totalTblNum then 
   return -1
 endi
diff --git a/tests/script/tsim/sync/3Replica5VgElect.sim b/tests/script/tsim/sync/3Replica5VgElect.sim
index c4ab9bd4bcbb4c513359d58da05e62a064a6037f..a9858acbfb220ab71d030aea3804ade785499bf5 100644
--- a/tests/script/tsim/sync/3Replica5VgElect.sim
+++ b/tests/script/tsim/sync/3Replica5VgElect.sim
@@ -202,7 +202,7 @@ else
 endi
 
 vg_ready:
-print ====>  create stable/child table
+print ====>  create stable stb  /child table ctb and general table ntb
 sql create table stb (ts timestamp, c1 int, c2 float, c3 binary(10)) tags (t1 int)
 
 sql show stables
@@ -225,7 +225,7 @@ endw
 $totalTblNum = $tbNum * 2
 sleep 1000
 sql show tables
-print ====> expect $totalTblNum and infinsert $rows  in fact 
+print ====> expect $totalTblNum and insert $rows  in fact 
 if $rows != $totalTblNum then 
   return -1
 endi
@@ -237,6 +237,7 @@ sql show vgroups
 $dnodeId = $data[0][3]
 $dnodeId = dnode . $dnodeId
 
+print ====> switch_leader_to_offine_loop
 switch_leader_to_offine_loop:
 
 print $dnodeId
@@ -271,22 +272,7 @@ system sh/exec.sh -n $dnodeId -s start
 $switch_loop_cnt = $switch_loop_cnt + 1
 print $switch_loop_cnt
 
-if $switch_loop_cnt == 1 then
-  sql show vgroups
-  $dnodeId = $data[0][3]
-  $dnodeId = dnode . $dnodeId
-  goto switch_leader_to_offine_loop
-elif $switch_loop_cnt == 2 then
-  sql show vgroups
-  $dnodeId = $data[0][3]
-  $dnodeId = dnode . $dnodeId
-  goto switch_leader_to_offine_loop
-elif $switch_loop_cnt == 3 then
-  sql show vgroups
-  $dnodeId = $data[0][3]
-  $dnodeId = dnode . $dnodeId
-  goto switch_leader_to_offine_loop
-elif $switch_loop_cnt == 4 then
+if $switch_loop_cnt <= 4 then
   sql show vgroups
   $dnodeId = $data[0][3]  
   $dnodeId = dnode . $dnodeId
diff --git a/tests/system-test/1-insert/performanceInsert.json b/tests/system-test/1-insert/performanceInsert.json
index 7278a6f735f0e77bf96c3fc772ab5a46bc52631d..1e83217e71719ae75047979ed6e3a506d88bed1b 100644
--- a/tests/system-test/1-insert/performanceInsert.json
+++ b/tests/system-test/1-insert/performanceInsert.json
@@ -1,7 +1,7 @@
 {
     "filetype": "insert",
     "cfgdir": "/etc/taos/",
-    "host": "test216",
+    "host": "localhost",
     "port": 6030,
     "user": "root",
     "password": "taosdata",
@@ -10,14 +10,14 @@
     "result_file": "./insert_res.txt",
     "confirm_parameter_prompt": "no",
     "insert_interval": 0,
-    "interlace_rows": 1000,
+    "interlace_rows": 0,
     "num_of_records_per_req": 100000,
     "databases": [
         {
             "dbinfo": {
                 "name": "db",
                 "drop": "yes",
-                "vgroups": 24
+                "vgroups": 8
             },
             "super_tables": [
                 {
@@ -29,8 +29,8 @@
                     "batch_create_tbl_num": 50000,
                     "data_source": "rand",
                     "insert_mode": "taosc",
-                    "insert_rows": 5,
-                    "interlace_rows": 100000,
+                    "insert_rows": 1000,
+                    "interlace_rows": 0,
                     "insert_interval": 0,
                     "max_sql_len": 10000000,
                     "disorder_ratio": 0,
diff --git a/tests/system-test/2-query/avg.py b/tests/system-test/2-query/avg.py
index ea7c3329eaf0f3f888589d8b26d66eba522f0474..2afcc29ac892e9cd184a41a139209e1a3bcf2b54 100644
--- a/tests/system-test/2-query/avg.py
+++ b/tests/system-test/2-query/avg.py
@@ -295,7 +295,7 @@ class TDTestCase:
         tdSql.checkData(0, 0, 4.500000000)
 
         tdSql.query(f" select avg(c1) from {dbname}.stb1 where c1 is null ")
-        tdSql.checkRows(0)
+        tdSql.checkRows(1)
 
 
     def avg_func_filter(self, dbname="db"):
diff --git a/tests/system-test/2-query/distribute_agg_apercentile.py b/tests/system-test/2-query/distribute_agg_apercentile.py
index ad754ad805192b2f8d45d729614cd2522027a3f7..34164acfa4631868250242f8873fcc50e166e5bb 100644
--- a/tests/system-test/2-query/distribute_agg_apercentile.py
+++ b/tests/system-test/2-query/distribute_agg_apercentile.py
@@ -86,7 +86,7 @@ class TDTestCase:
     def distribute_agg_query(self, dbname="testdb"):
         # basic filter
         tdSql.query(f"select apercentile(c1 , 20) from {dbname}.stb1 where c1 is null")
-        tdSql.checkRows(0)
+        tdSql.checkRows(1)
 
         tdSql.query(f"select apercentile(c1 , 20) from {dbname}.stb1 where t1=1")
         tdSql.checkData(0,0,2.800000000)
diff --git a/tests/system-test/2-query/distribute_agg_max.py b/tests/system-test/2-query/distribute_agg_max.py
index a7b31a2084af6665a83fac722c8ca1cb653d5dd9..f67088d9e6f1d9091fce226b19d89d35b8f9e23b 100644
--- a/tests/system-test/2-query/distribute_agg_max.py
+++ b/tests/system-test/2-query/distribute_agg_max.py
@@ -168,7 +168,7 @@ class TDTestCase:
     def distribute_agg_query(self, dbname="testdb"):
         # basic filter
         tdSql.query(f"select max(c1) from {dbname}.stb1 where c1 is null")
-        tdSql.checkRows(0)
+        tdSql.checkRows(1)
 
         tdSql.query(f"select max(c1) from {dbname}.stb1 where t1=1")
         tdSql.checkData(0,0,10)
diff --git a/tests/system-test/2-query/distribute_agg_min.py b/tests/system-test/2-query/distribute_agg_min.py
index cc50092451167bcf72ad57480b03cae370a7b297..29e7c5f519fd4ca7ad11c75083d3ec422c0b5b72 100644
--- a/tests/system-test/2-query/distribute_agg_min.py
+++ b/tests/system-test/2-query/distribute_agg_min.py
@@ -167,7 +167,7 @@ class TDTestCase:
     def distribute_agg_query(self, dbname="testdb"):
         # basic filter
         tdSql.query(f"select min(c1) from {dbname}.stb1 where c1 is null")
-        tdSql.checkRows(0)
+        tdSql.checkRows(1)
 
         tdSql.query(f"select min(c1) from {dbname}.stb1 where t1=1")
         tdSql.checkData(0,0,2)
diff --git a/tests/system-test/2-query/distribute_agg_spread.py b/tests/system-test/2-query/distribute_agg_spread.py
index 842a74628d7dbc05f10a99ba49364d8ddc7c2c5d..135a61d1944d72820dd763bc36d0fbccb945fe1b 100644
--- a/tests/system-test/2-query/distribute_agg_spread.py
+++ b/tests/system-test/2-query/distribute_agg_spread.py
@@ -195,7 +195,7 @@ class TDTestCase:
     def distribute_agg_query(self):
         # basic filter
         tdSql.query("select spread(c1) from stb1 where c1 is null")
-        tdSql.checkRows(0)
+        tdSql.checkRows(1)
 
         tdSql.query("select spread(c1) from stb1 where t1=1")
         tdSql.checkData(0,0,8.000000000)
diff --git a/tests/system-test/2-query/sample.py b/tests/system-test/2-query/sample.py
index b6bdd8926e4368543595302fd6ccee9f148ef31f..f09265c3009e9bb0a99275bb55ff42ae02a5642a 100644
--- a/tests/system-test/2-query/sample.py
+++ b/tests/system-test/2-query/sample.py
@@ -743,7 +743,7 @@ class TDTestCase:
         # filter data
 
         tdSql.query(" select sample(c1, 20 ) from t1 where c1 is null ")
-        tdSql.checkRows(0)
+        tdSql.checkRows(1)
 
         tdSql.query(" select sample(c1, 20 ) from t1 where c1 =6 ")
         tdSql.checkRows(1)
@@ -891,4 +891,4 @@ class TDTestCase:
         tdLog.success("%s successfully executed" % __file__)
 
 tdCases.addWindows(__file__, TDTestCase())
-tdCases.addLinux(__file__, TDTestCase())
\ No newline at end of file
+tdCases.addLinux(__file__, TDTestCase())
diff --git a/tests/system-test/2-query/tsbsQuery.py b/tests/system-test/2-query/tsbsQuery.py
index 75b33f1a5e4561995ee02e70405c6ac88ba91beb..617f7e74643c9b1dbb24834e3535b4bac669e4bb 100644
--- a/tests/system-test/2-query/tsbsQuery.py
+++ b/tests/system-test/2-query/tsbsQuery.py
@@ -4,6 +4,8 @@ import sys
 import datetime
 import inspect
 import random
+from util.dnodes import TDDnode
+from util.dnodes import tdDnodes
 
 from util.log import *
 from util.sql import *
@@ -30,10 +32,10 @@ class TDTestCase:
             for i in range(ctbNum):
                 tagValue = 'beijing'
                 if (i % 10 == 0):
-                    sql += " %s%d using %s (name,fleet,driver,device_version)  tags('truck_%d', 'South%d','Trish%d','v2.%d')"%(ctbPrefix,i,stbName,i,i,i,i)
+                    sql += " %s%d using %s (name,fleet,driver,device_version,load_capacity,fuel_capacity,nominal_fuel_consumption)  tags('truck_%d', 'South%d','Trish%d','v2.%d', 1500+%d*20, 150+%d*2, 5+%d)"%(ctbPrefix,i,stbName,i,i,i,i,(1500+i*20),(150+i*2),(5+i))
                 else:
                     model = 'H-%d'%i
-                    sql += " %s%d using %s tags('truck_%d', 'South%d','Trish%d','%s','v2.%d')"%(ctbPrefix,i,stbName,i,i,i,model,i)
+                    sql += " %s%d using %s tags('truck_%d', 'South%d','Trish%d','%s','v2.%d', %d, %d,%d)"%(ctbPrefix,i,stbName,i,i,i,model,i,(1500+i*20),(150+i*2),(5+i))
                 if (i > 0) and (i%1000 == 0):
                     tsql.execute(sql)
                     sql = pre_create
@@ -55,10 +57,10 @@ class TDTestCase:
                 sql += " %s%d values "%(ctbPrefix,i)
                 for j in range(rowsPerTbl):
                     if(ctbPrefix=="rct"):
-                        sql += f"({startTs+j*60000}, {80+j}, {90+j}, {85+j}, {30+j*10}, {1.2*j}, {221+j*2}, {20+j*0.2}, {1500+j*20}, {150+j*2},{5+j}) "
+                        sql += f"({startTs+j*60000}, {80+j}, {90+j}, {85+j}, {30+j*10}, {1.2*j}, {221+j*2}, {20+j*0.2}) "
                     elif ( ctbPrefix=="dct"):
                         status= random.randint(0,1)
-                        sql += f"( {startTs+j*60000}, {1+j*0.1},{1400+j*15},  {status},{1500+j*20}, {150+j*2},{5+j} ) "   
+                        sql += f"( {startTs+j*60000}, {1+j*0.1},{1400+j*15},  {status} ) "   
                     # tdLog.debug("1insert sql:%s"%sql)
                     if (j > 0) and ((j%batchNum == 0) or (j == rowsPerTbl - 1)):
                         # tdLog.debug("2insert sql:%s"%sql)
@@ -79,22 +81,22 @@ class TDTestCase:
         stabname2="diagnostics"
         ctbnamePre1="rct"        
         ctbnamePre2="dct"
-        ctbNums=40
+        ctbNums=50
         self.ctbNums=ctbNums
-        rowNUms=200
+        rowNUms=5000
         ts=1451606400000
         tdSql.execute(f"create database {dbname};")
         tdSql.execute(f"use {dbname} ")
         tdSql.execute(f'''
-        create table {stabname1} (ts timestamp,latitude double,longitude double,elevation double,velocity double,heading double,grade double,fuel_consumption double,load_capacity double,fuel_capacity double,nominal_fuel_consumption double) tags (name binary(30),fleet binary(30),driver binary(30),model binary(30),device_version binary(30));
+        create table {stabname1} (ts timestamp,latitude double,longitude double,elevation double,velocity double,heading double,grade double,fuel_consumption double) tags (name binary(30),fleet binary(30),driver binary(30),model binary(30),device_version binary(30),load_capacity double,fuel_capacity double,nominal_fuel_consumption double);
         ''')
         tdSql.execute(f'''
-        create table {stabname2} (ts timestamp,fuel_state double,current_load double,status bigint,load_capacity double,fuel_capacity double,nominal_fuel_consumption double) tags (name binary(30),fleet binary(30),driver binary(30),model binary(30),device_version binary(30)) ;
+        create table {stabname2} (ts timestamp,fuel_state double,current_load double,status bigint) tags (name binary(30),fleet binary(30),driver binary(30),model binary(30),device_version binary(30),load_capacity double,fuel_capacity double,nominal_fuel_consumption double) ;
         ''')
         self.create_ctable(tsql=tdSql,dbName=dbname,stbName=stabname1,ctbPrefix=ctbnamePre1,ctbNum=ctbNums)
         self.create_ctable(tsql=tdSql,dbName=dbname,stbName=stabname2,ctbPrefix=ctbnamePre2,ctbNum=ctbNums)
-        self.insertData(tsql=tdSql,dbName=dbname,stbName=stabname1,ctbPrefix=ctbnamePre1,ctbNum=ctbNums,rowsPerTbl=rowNUms,startTs=ts,batchNum=1000)
-        self.insertData(tsql=tdSql,dbName=dbname,stbName=stabname2,ctbPrefix=ctbnamePre2,ctbNum=ctbNums,rowsPerTbl=rowNUms,startTs=ts,batchNum=1000)
+        self.insertData(tsql=tdSql,dbName=dbname,stbName=stabname1,ctbPrefix=ctbnamePre1,ctbNum=ctbNums,rowsPerTbl=rowNUms,startTs=ts,batchNum=10000)
+        self.insertData(tsql=tdSql,dbName=dbname,stbName=stabname2,ctbPrefix=ctbnamePre2,ctbNum=ctbNums,rowsPerTbl=rowNUms,startTs=ts,batchNum=10000)
         # for i in range(ctbNum):
         #     if i %10 == 0 :
         #         # tdLog.debug(f"create table rct{i} using readings (name,fleet,driver,model,device_version) tags ('truck_{i}','South{i}','Trish{i}', NULL,'v2.3')")
@@ -131,7 +133,7 @@ class TDTestCase:
     #         tdLog.info("avg value check pass , it work as expected ,sql is \"%s\"   "%check_query )
 
 
-    def tsbsIotQuery(self):
+    def tsbsIotQuery(self,insertinto=True):
         
         tdSql.execute("use db_tsbs")
         
@@ -143,10 +145,11 @@ class TDTestCase:
         
         
         # test insert into 
-        tdSql.execute("create table testsnode (ts timestamp, c1 float,c2 binary(30),c3 binary(30),c4 binary(30)) ;")
-        tdSql.query("insert into testsnode SELECT ts,avg(velocity) as mean_velocity,name,driver,fleet FROM readings WHERE ts > 1451606400000 AND ts <= 1451606460000 partition BY name,driver,fleet,ts interval(10m);")
-        
-        tdSql.query("insert into testsnode(ts,c1,c2,c3,c4)  SELECT ts,avg(velocity) as mean_velocity,name,driver,fleet FROM readings WHERE ts > 1451606400000 AND ts <= 1451606460000 partition BY name,driver,fleet,ts interval(10m);")
+        if insertinto == True :
+            tdSql.execute("create table testsnode (ts timestamp, c1 float,c2 binary(30),c3 binary(30),c4 binary(30)) ;")
+            tdSql.query("insert into testsnode SELECT ts,avg(velocity) as mean_velocity,name,driver,fleet FROM readings WHERE ts > 1451606400000 AND ts <= 1451606460000 partition BY name,driver,fleet,ts interval(10m);")
+            
+            tdSql.query("insert into testsnode(ts,c1,c2,c3,c4)  SELECT ts,avg(velocity) as mean_velocity,name,driver,fleet FROM readings WHERE ts > 1451606400000 AND ts <= 1451606460000 partition BY name,driver,fleet,ts interval(10m);")
 
 
         # test paitition interval fill
@@ -182,8 +185,7 @@ class TDTestCase:
 
         # # 6. avg-daily-driving-session        
         # #taosc core dumped
-        # tdSql.execute("create table random_measure2_1 (ts timestamp,ela float, name binary(40))")
-        # tdSql.query("SELECT ts,diff(mv) AS difka  FROM (SELECT ts,name,floor(avg(velocity)/10)/floor(avg(velocity)/10) AS mv FROM readings   WHERE name!='' AND ts > '2016-01-01T00:00:00Z' AND ts < '2016-01-05T00:00:01Z'   partition by name,ts interval(10m) fill(value,0))  GROUP BY name,ts;")
+        tdSql.query(" SELECT _wstart as ts,name,floor(avg(velocity)/5) AS mv FROM readings   WHERE name is not null  AND ts > '2016-01-01T00:00:00Z' AND ts < '2016-01-05T00:00:01Z'   partition by name interval(10m) fill(value,0);")
         # tdSql.query("select name,diff(mv) AS difka  FROM (SELECT  ts,name,mv  FROM (SELECT _wstart as ts,name,floor(avg(velocity)/10)/floor(avg(velocity)/10) AS mv FROM readings   WHERE name!='' AND ts > '2016-01-01T00:00:00Z' AND ts < '2016-01-05T00:00:01Z'   partition by name interval(10m) fill(value,0)))  group  BY name ;")
         # tdSql.query("SELECT _wstart,name,floor(avg(velocity)/10)/floor(avg(velocity)/10) AS mv FROM readings   WHERE name!='' AND ts > '2016-01-01T00:00:00Z' AND ts < '2016-01-05T00:00:01Z'   partition by name interval(10m) fill(value,0)")
 
@@ -234,7 +236,9 @@ class TDTestCase:
         tdLog.printNoPrefix("==========step1:create database and table,insert data  ==============")
         self.prepareData()
         self.tsbsIotQuery()
-
+        tdDnodes.stop(1)
+        tdDnodes.start(1)
+        self.tsbsIotQuery(False)
 
     def stop(self):
         tdSql.close()
diff --git a/tests/system-test/fulltest.sh b/tests/system-test/fulltest.sh
index 1f6e8ce1f55fb3ea699e40429c4d214de87b39b0..0428014291204d5314ec5386503e22c5a1fba170 100755
--- a/tests/system-test/fulltest.sh
+++ b/tests/system-test/fulltest.sh
@@ -216,7 +216,7 @@ python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_insertdatas_query
 # python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_querydatas_stop_follower.py -N 4 -M 1
 # python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_querydatas_stop_leader_force_stop.py -N 4 -M 1 
 # python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_querydatas_stop_leader.py -N 4 -M 1 
-python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_vgroups.py  -N 4 -M 1
+# python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_vgroups.py  -N 4 -M 1
 # python3 test.py -f 6-cluster/vnode/4dnode1mnode_basic_replica3_vgroups_stopOne.py -N 4 -M 1