Merge branch '3.0' of github.com:taosdata/TDengine into test/chr/TD-14699

2022-06-22 12:12:37 +08:00 · 2022-06-22 12:12:37 +08:00 · 16c2c5b690
parent 54d69a3767 8adfc5eeca
commit 16c2c5b690
247 changed files with 12023 additions and 4280 deletions
--- a/cmake/cmake.platform
+++ b/cmake/cmake.platform
@ -70,5 +70,46 @@ ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "Windows")

 ENDIF()

+IF ("${CPUTYPE}" STREQUAL "")
+  MESSAGE(STATUS "The current platform " ${CMAKE_SYSTEM_PROCESSOR} " is detected")
+
+  IF (CMAKE_SYSTEM_PROCESSOR MATCHES "(amd64)|(AMD64)")
+    MESSAGE(STATUS "The current platform is amd64")
+    SET(PLATFORM_ARCH_STR "amd64")
+  ELSEIF (CMAKE_SYSTEM_PROCESSOR MATCHES "(x86)|(X86)")
+    MESSAGE(STATUS "The current platform is x86")
+    SET(PLATFORM_ARCH_STR "i386")
+  ELSEIF (CMAKE_SYSTEM_PROCESSOR MATCHES "armv7l")
+    MESSAGE(STATUS "The current platform is aarch32")
+    SET(PLATFORM_ARCH_STR "arm")
+  ELSEIF (CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64")
+    MESSAGE(STATUS "The current platform is aarch64")
+    SET(PLATFORM_ARCH_STR "arm64")
+  ENDIF ()
+ELSE ()
+  # if generate ARM version:
+  #   cmake -DCPUTYPE=aarch32 .. or cmake -DCPUTYPE=aarch64
+  IF (${CPUTYPE} MATCHES "aarch32")
+    SET(PLATFORM_ARCH_STR "arm")
+    MESSAGE(STATUS "input cpuType: aarch32")
+  ELSEIF (${CPUTYPE} MATCHES "aarch64")
+    SET(PLATFORM_ARCH_STR "arm64")
+    MESSAGE(STATUS "input cpuType: aarch64")
+  ELSEIF (${CPUTYPE} MATCHES "mips64")
+    SET(PLATFORM_ARCH_STR "mips")
+    MESSAGE(STATUS "input cpuType: mips64")
+  ELSEIF (${CPUTYPE} MATCHES "x64")
+    SET(PLATFORM_ARCH_STR "amd64")
+    MESSAGE(STATUS "input cpuType: x64")
+  ELSEIF (${CPUTYPE} MATCHES "x86")
+    SET(PLATFORM_ARCH_STR "i386")
+    MESSAGE(STATUS "input cpuType: x86")
+  ELSE ()
+    MESSAGE(STATUS "input cpuType unknown " ${CPUTYPE})
+  ENDIF ()
+ENDIF ()
+
+MESSAGE(STATUS "platform arch:" ${PLATFORM_ARCH_STR})
+
 MESSAGE("C Compiler ID: ${CMAKE_C_COMPILER_ID}")
 MESSAGE("CXX Compiler ID: ${CMAKE_CXX_COMPILER_ID}")
--- a/docs/en/14-reference/02-rest-api/02-rest-api.mdx
+++ b/docs/en/14-reference/02-rest-api/02-rest-api.mdx
@ -21,7 +21,7 @@ The following example is in an Ubuntu environment and uses the `curl` tool to ve
 The following example lists all databases on the host h1.taosdata.com. To use it in your environment, replace `h1.taosdata.com` and `6041` (the default port) with the actual running TDengine service FQDN and port number.

 ```html
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'show databases;' h1.taosdata.com:6041/rest/sql
+curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "show databases;" h1.taosdata.com:6041/rest/sql
 ```

 The following return value results indicate that the verification passed.
@ -106,13 +106,13 @@ The HTTP request's BODY is a complete SQL command, and the data table in the SQL
 Use `curl` to initiate an HTTP request with a custom authentication method, with the following syntax.

 ```bash
-curl -H 'Authorization: Basic <TOKEN>' -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
+curl -L -H "Authorization: Basic <TOKEN>" -d "<SQL>" <ip>:<PORT>/rest/sql/[db_name]
 ```

 Or

 ```bash
-curl -u username:password -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
+curl -L -u username:password -d "<SQL>" <ip>:<PORT>/rest/sql/[db_name]
 ```

 where `TOKEN` is the string after Base64 encoding of `{username}:{password}`, e.g. `root:taosdata` is encoded as `cm9vdDp0YW9zZGF0YQ==`.
@ -192,7 +192,7 @@ Response body:
 - query all records from table d1001 of database demo

  ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001' 192.168.0.1:6041/rest/sql
+  curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "select * from demo.d1001" 192.168.0.1:6041/rest/sql
  ```

  Response body:
@ -218,7 +218,7 @@ Response body:
 - Create database demo:

  ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'create database demo' 192.168.0.1:6041/rest/sql
+  curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "create database demo" 192.168.0.1:6041/rest/sql
  ```

  Response body:
@ -240,7 +240,7 @@ Response body:
 When the HTTP request URL uses `/rest/sqlt`, the returned result set's timestamp value will be in Unix timestamp format, for example:

 ```bash
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001' 192.168.0.1:6041/rest/sqlt
+curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "select * from demo.d1001" 192.168.0.1:6041/rest/sqlt
 ```

 Response body:
@ -268,7 +268,7 @@ Response body:
 When the HTTP request URL uses `/rest/sqlutc`, the timestamp of the returned result set will be expressed as a UTC format, for example:

 ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.t1' 192.168.0.1:6041/rest/sqlutc
+  curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "select * from demo.t1" 192.168.0.1:6041/rest/sqlutc
 ```

 Response body:
--- a/docs/en/14-reference/12-directory.md
+++ b/docs/en/14-reference/12-directory.md
@ -26,7 +26,6 @@ All executable files of TDengine are in the _/usr/local/taos/bin_ directory by d
 - _remove.sh_: script to uninstall TDengine, please execute it carefully, link to the **rmtaos** command in the /usr/bin directory. Will remove the TDengine installation directory `/usr/local/taos`, but will keep `/etc/taos`, `/var/lib/taos`, `/var/log/taos`
 - _taosadapter_: server-side executable that provides RESTful services and accepts writing requests from a variety of other softwares
 - _tarbitrator_: provides arbitration for two-node cluster deployments
- _run_taosd_and_taosadapter.sh_: script to start both taosd and taosAdapter
 - _TDinsight.sh_: script to download TDinsight and install it
 - _set_core.sh_: script for setting up the system to generate core dump files for easy debugging
 - _taosd-dump-cfg.gdb_: script to facilitate debugging of taosd's gdb execution.
--- a/docs/en/27-train-faq/03-docker.md
+++ b/docs/en/27-train-faq/03-docker.md
@ -109,7 +109,7 @@ taos>
 It's also able to access the REST interface provided by TDengine in container from the host.

 ```
-curl -u root:taosdata -d 'show databases' 127.0.0.1:6041/rest/sql
+curl -L -u root:taosdata -d "show databases" 127.0.0.1:6041/rest/sql
 ```

 Output is like below:
@ -147,7 +147,7 @@ docker run -d --name tdengine-taosd -p 6030-6042:6030-6042 -p 6030-6042:6030-604
 - Verify the REST interface:

 ```bash
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'show databases;' 127.0.0.1:6041/rest/sql
+curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "show databases;" 127.0.0.1:6041/rest/sql
 ```

 Below is an example output:
--- a/docs/zh/14-reference/02-rest-api/02-rest-api.mdx
+++ b/docs/zh/14-reference/02-rest-api/02-rest-api.mdx
@ -21,7 +21,7 @@ RESTful 接口不依赖于任何 TDengine 的库，因此客户端不需要安
 下面示例是列出所有的数据库，请把 h1.taosdata.com 和 6041（缺省值）替换为实际运行的 TDengine 服务 FQDN 和端口号：

 ```html
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'show databases;' h1.taosdata.com:6041/rest/sql
+curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "show databases;" h1.taosdata.com:6041/rest/sql
 ```

 返回值结果如下表示验证通过：
@ -106,13 +106,13 @@ HTTP 请求的 BODY 里就是一个完整的 SQL 语句，SQL 语句中的数据
 使用 `curl` 通过自定义身份认证方式来发起一个 HTTP Request，语法如下：

 ```bash
-curl -H 'Authorization: Basic <TOKEN>' -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
+curl -L -H "Authorization: Basic <TOKEN>" -d "<SQL>" <ip>:<PORT>/rest/sql/[db_name]
 ```

 或者

 ```bash
-curl -u username:password -d '<SQL>' <ip>:<PORT>/rest/sql/[db_name]
+curl -L -u username:password -d "<SQL>" <ip>:<PORT>/rest/sql/[db_name]
 ```

 其中，`TOKEN` 为 `{username}:{password}` 经过 Base64 编码之后的字符串，例如 `root:taosdata` 编码后为 `cm9vdDp0YW9zZGF0YQ==`
@ -192,7 +192,7 @@ curl http://192.168.0.1:6041/rest/login/root/taosdata
 - 在 demo 库里查询表 d1001 的所有记录：

  ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001' 192.168.0.1:6041/rest/sql
+  curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "select * from demo.d1001" 192.168.0.1:6041/rest/sql
  ```

  返回值：
@ -218,7 +218,7 @@ curl http://192.168.0.1:6041/rest/login/root/taosdata
 - 创建库 demo：

  ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'create database demo' 192.168.0.1:6041/rest/sql
+  curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "create database demo" 192.168.0.1:6041/rest/sql
  ```

  返回值：
@ -240,7 +240,7 @@ curl http://192.168.0.1:6041/rest/login/root/taosdata
 HTTP 请求 URL 采用 `/rest/sqlt` 时，返回结果集的时间戳将采用 Unix 时间戳格式表示，例如

 ```bash
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001' 192.168.0.1:6041/rest/sqlt
+curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "select * from demo.d1001" 192.168.0.1:6041/rest/sqlt
 ```

 返回结果：
@ -268,7 +268,7 @@ curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.d1001
 HTTP 请求 URL 采用 `/rest/sqlutc` 时，返回结果集的时间戳将采用 UTC 时间字符串表示，例如

 ```bash
-  curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'select * from demo.t1' 192.168.0.1:6041/rest/sqlutc
+  curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "select * from demo.t1" 192.168.0.1:6041/rest/sqlutc
 ```

 返回值：
--- a/docs/zh/14-reference/12-directory.md
+++ b/docs/zh/14-reference/12-directory.md
@ -26,7 +26,6 @@ TDengine 的所有可执行文件默认存放在 _/usr/local/taos/bin_ 目录下
 - _remove.sh_：卸载 TDengine 的脚本，请谨慎执行，链接到/usr/bin 目录下的**rmtaos**命令。会删除 TDengine 的安装目录/usr/local/taos，但会保留/etc/taos、/var/lib/taos、/var/log/taos
 - _taosadapter_: 提供 RESTful 服务和接受其他多种软件写入请求的服务端可执行文件
 - _tarbitrator_: 提供双节点集群部署的仲裁功能
- _run_taosd_and_taosadapter.sh_：同时启动 taosd 和 taosAdapter 的脚本
 - _TDinsight.sh_：用于下载 TDinsight 并安装的脚本
 - _set_core.sh_：用于方便调试设置系统生成 core dump 文件的脚本
 - _taosd-dump-cfg.gdb_：用于方便调试 taosd 的 gdb 执行脚本。
--- a/docs/zh/27-train-faq/03-docker.md
+++ b/docs/zh/27-train-faq/03-docker.md
@ -108,7 +108,7 @@ taos>
 也可以在宿主机使用 curl 通过 RESTful 端口访问 Docker 容器内的 TDengine server。

 ```
-curl -u root:taosdata -d 'show databases' 127.0.0.1:6041/rest/sql
+curl -L -u root:taosdata -d "show databases" 127.0.0.1:6041/rest/sql
 ```

 输出示例如下：
@ -148,7 +148,7 @@ docker run -d --name tdengine-taosd -p 6030-6042:6030-6042 -p 6030-6042:6030-604
 使用 curl 命令验证 RESTful 接口可以正常工作：

 ```bash
-curl -H 'Authorization: Basic cm9vdDp0YW9zZGF0YQ==' -d 'show databases;' 127.0.0.1:6041/rest/sql
+curl -L -H "Authorization: Basic cm9vdDp0YW9zZGF0YQ==" -d "show databases;" 127.0.0.1:6041/rest/sql
 ```

 输出示例如下：
--- a/examples/c/stream_demo.c
+++ b/examples/c/stream_demo.c
@ -25,19 +25,21 @@ int32_t init_env() {
    return -1;
  }

-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2");
+  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 1");
  if (taos_errno(pRes) != 0) {
    printf("error in create db, reason:%s\n", taos_errstr(pRes));
    return -1;
  }
  taos_free_result(pRes);

+#if 0
  pRes = taos_query(pConn, "create database if not exists abc2 vgroups 20");
  if (taos_errno(pRes) != 0) {
    printf("error in create db, reason:%s\n", taos_errstr(pRes));
    return -1;
  }
  taos_free_result(pRes);
+#endif

  pRes = taos_query(pConn, "use abc1");
  if (taos_errno(pRes) != 0) {
@ -90,7 +92,8 @@ int32_t create_stream() {
  /*pRes = tmq_create_stream(pConn, "stream1", "out1", sql);*/
  pRes = taos_query(
      pConn,
-      "create stream stream1 trigger at_once into abc1.outstb as select _wstartts, sum(k) from st1 interval(10m) ");
+      "create stream stream1 trigger window_close watermark 10s into outstb as select _wstartts, sum(k) from st1 "
+      "interval(10s) ");
  if (taos_errno(pRes) != 0) {
    printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
    return -1;
--- a/include/client/taos.h
+++ b/include/client/taos.h
@ -187,8 +187,8 @@ DLL_EXPORT TAOS_ROW *taos_result_block(TAOS_RES *res);
 DLL_EXPORT const char *taos_get_server_info(TAOS *taos);
 DLL_EXPORT const char *taos_get_client_info();

-DLL_EXPORT const char *taos_errstr(TAOS_RES *tres);
-DLL_EXPORT int         taos_errno(TAOS_RES *tres);
+DLL_EXPORT const char *taos_errstr(TAOS_RES *res);
+DLL_EXPORT int         taos_errno(TAOS_RES *res);

 DLL_EXPORT void        taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param);
 DLL_EXPORT void        taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param);
@ -252,6 +252,16 @@ DLL_EXPORT void           tmq_conf_set_auto_commit_cb(tmq_conf_t *conf, tmq_comm

 /* -------------------------TMQ MSG HANDLE INTERFACE---------------------- */

+enum tmq_res_t {
+  TMQ_RES_INVALID = -1,
+  TMQ_RES_DATA = 1,
+  TMQ_RES_TABLE_META = 2,
+};
+
+typedef enum tmq_res_t tmq_res_t;
+
+DLL_EXPORT tmq_res_t   tmq_get_res_type(TAOS_RES *res);
+DLL_EXPORT int32_t     tmq_get_raw_meta(TAOS_RES *res, const void **raw_meta, int32_t *raw_meta_len);
 DLL_EXPORT const char *tmq_get_topic_name(TAOS_RES *res);
 DLL_EXPORT const char *tmq_get_db_name(TAOS_RES *res);
 DLL_EXPORT int32_t     tmq_get_vgroup_id(TAOS_RES *res);
--- a/include/common/systable.h
+++ b/include/common/systable.h
@ -41,6 +41,7 @@ extern "C" {
 #define TSDB_INS_TABLE_VGROUPS                "vgroups"
 #define TSDB_INS_TABLE_VNODES                 "vnodes"
 #define TSDB_INS_TABLE_CONFIGS                "configs"
+#define TSDB_INS_TABLE_DNODE_VARIABLES        "dnode_variables"

 #define TSDB_PERFORMANCE_SCHEMA_DB     "performance_schema"
 #define TSDB_PERFS_TABLE_SMAS          "smas"
--- a/include/common/tcommon.h
+++ b/include/common/tcommon.h
@ -34,6 +34,7 @@ enum {
 enum {
  TMQ_MSG_TYPE__DUMMY = 0,
  TMQ_MSG_TYPE__POLL_RSP,
+  TMQ_MSG_TYPE__POLL_META_RSP,
  TMQ_MSG_TYPE__EP_RSP,
  TMQ_MSG_TYPE__END_RSP,
 };
@ -44,6 +45,7 @@ typedef enum EStreamType {
  STREAM_REPROCESS,
  STREAM_INVALID,
  STREAM_GET_ALL,
+  STREAM_DELETE,
 } EStreamType;

 typedef struct {
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@ -168,7 +168,7 @@ typedef struct {
  int32_t vgId;
  char*   dbFName;
  char*   tbName;
-} SBuildTableMetaInput;
+} SBuildTableInput;

 typedef struct {
  char    db[TSDB_DB_FNAME_LEN];
@ -444,6 +444,7 @@ typedef struct {
  char*   comment;
  char*   pAst1;
  char*   pAst2;
+  SArray* pFuncs;
 } SMCreateStbReq;

 int32_t tSerializeSMCreateStbReq(void* buf, int32_t bufLen, SMCreateStbReq* pReq);
@ -667,6 +668,41 @@ int32_t tSerializeSQueryTableRsp(void* buf, int32_t bufLen, SQueryTableRsp* pRsp

 int32_t tDeserializeSQueryTableRsp(void* buf, int32_t bufLen, SQueryTableRsp* pRsp);

+typedef struct {
+  SMsgHead header;
+  char     dbFName[TSDB_DB_FNAME_LEN];
+  char     tbName[TSDB_TABLE_NAME_LEN];
+} STableCfgReq;
+
+typedef struct {
+  char     tbName[TSDB_TABLE_NAME_LEN];
+  char     stbName[TSDB_TABLE_NAME_LEN];
+  char     dbFName[TSDB_DB_FNAME_LEN];
+  int32_t  numOfTags;
+  int32_t  numOfColumns;
+  int8_t   tableType;
+  int64_t  delay1;
+  int64_t  delay2;
+  int64_t  watermark1;
+  int64_t  watermark2;
+  int32_t  ttl;
+  SArray*  pFuncs;
+  int32_t  commentLen;
+  char*    pComment;
+  SSchema* pSchemas;
+  int32_t  tagsLen;
+  char*    pTags;
+} STableCfg;
+
+typedef STableCfg STableCfgRsp;
+
+int32_t tSerializeSTableCfgReq(void *buf, int32_t bufLen, STableCfgReq *pReq);
+int32_t tDeserializeSTableCfgReq(void *buf, int32_t bufLen, STableCfgReq *pReq);
+
+int32_t tSerializeSTableCfgRsp(void *buf, int32_t bufLen, STableCfgRsp *pRsp);
+int32_t tDeserializeSTableCfgRsp(void *buf, int32_t bufLen, STableCfgRsp *pRsp);
+void tFreeSTableCfgRsp(STableCfgRsp *pRsp);
+
 typedef struct {
  char    db[TSDB_DB_FNAME_LEN];
  int32_t numOfVgroups;
@ -1317,7 +1353,7 @@ int32_t tSerializeSSetStandbyReq(void* buf, int32_t bufLen, SSetStandbyReq* pReq
 int32_t tDeserializeSSetStandbyReq(void* buf, int32_t bufLen, SSetStandbyReq* pReq);

 typedef struct {
-  char    queryStrId[TSDB_QUERY_ID_LEN];
+  char queryStrId[TSDB_QUERY_ID_LEN];
 } SKillQueryReq;

 int32_t tSerializeSKillQueryReq(void* buf, int32_t bufLen, SKillQueryReq* pReq);
@ -1560,6 +1596,7 @@ typedef struct {
  char   name[TSDB_TOPIC_FNAME_LEN];  // accout.topic
  int8_t igExists;
  int8_t subType;
+  int8_t withMeta;
  char*  sql;
  char   subDbName[TSDB_DB_FNAME_LEN];
  union {
@ -1776,12 +1813,10 @@ typedef struct {
 } SDDropTopicReq;

 typedef struct {
-  float   xFilesFactor;
-  int32_t delay;
-  int32_t qmsg1Len;
-  int32_t qmsg2Len;
-  char*   qmsg1;  // pAst1:qmsg1:SRetention1 => trigger aggr task1
-  char*   qmsg2;  // pAst2:qmsg2:SRetention2 => trigger aggr task2
+  int64_t maxdelay[2];
+  int64_t watermark[2];
+  int32_t qmsgLen[2];
+  char*   qmsg[2];  // pAst:qmsg:SRetention => trigger aggr task1/2
 } SRSmaParam;

 int32_t tEncodeSRSmaParam(SEncoder* pCoder, const SRSmaParam* pRSmaParam);
@ -2284,6 +2319,9 @@ typedef struct {
  int8_t igNotExists;
 } SMDropStreamReq;

+int32_t tSerializeSMDropStreamReq(void* buf, int32_t bufLen, const SMDropStreamReq* pReq);
+int32_t tDeserializeSMDropStreamReq(void* buf, int32_t bufLen, SMDropStreamReq* pReq);
+
 typedef struct {
  int8_t reserved;
 } SMDropStreamRsp;
@ -2305,6 +2343,7 @@ typedef struct {
  int64_t newConsumerId;
  char    subKey[TSDB_SUBSCRIBE_KEY_LEN];
  int8_t  subType;
+  int8_t  withMeta;
  char*   qmsg;
  int64_t suid;
 } SMqRebVgReq;
@ -2317,6 +2356,7 @@ static FORCE_INLINE int32_t tEncodeSMqRebVgReq(void** buf, const SMqRebVgReq* pR
  tlen += taosEncodeFixedI64(buf, pReq->newConsumerId);
  tlen += taosEncodeString(buf, pReq->subKey);
  tlen += taosEncodeFixedI8(buf, pReq->subType);
+  tlen += taosEncodeFixedI8(buf, pReq->withMeta);
  if (pReq->subType == TOPIC_SUB_TYPE__COLUMN) {
    tlen += taosEncodeString(buf, pReq->qmsg);
  } else if (pReq->subType == TOPIC_SUB_TYPE__TABLE) {
@ -2332,6 +2372,7 @@ static FORCE_INLINE void* tDecodeSMqRebVgReq(const void* buf, SMqRebVgReq* pReq)
  buf = taosDecodeFixedI64(buf, &pReq->newConsumerId);
  buf = taosDecodeStringTo(buf, pReq->subKey);
  buf = taosDecodeFixedI8(buf, &pReq->subType);
+  buf = taosDecodeFixedI8(buf, &pReq->withMeta);
  if (pReq->subType == TOPIC_SUB_TYPE__COLUMN) {
    buf = taosDecodeString(buf, &pReq->qmsg);
  } else if (pReq->subType == TOPIC_SUB_TYPE__TABLE) {
@ -2676,6 +2717,34 @@ static FORCE_INLINE void tDeleteSMqSubTopicEp(SMqSubTopicEp* pSubTopicEp) {
  taosArrayDestroy(pSubTopicEp->vgs);
 }

+typedef struct {
+  SMqRspHead head;
+  int64_t    reqOffset;
+  int64_t    rspOffset;
+  int16_t    resMsgType;
+  int32_t    metaRspLen;
+  void*      metaRsp;
+} SMqMetaRsp;
+
+static FORCE_INLINE int32_t tEncodeSMqMetaRsp(void** buf, const SMqMetaRsp* pRsp) {
+  int32_t tlen = 0;
+  tlen += taosEncodeFixedI64(buf, pRsp->reqOffset);
+  tlen += taosEncodeFixedI64(buf, pRsp->rspOffset);
+  tlen += taosEncodeFixedI16(buf, pRsp->resMsgType);
+  tlen += taosEncodeFixedI32(buf, pRsp->metaRspLen);
+  tlen += taosEncodeBinary(buf, pRsp->metaRsp, pRsp->metaRspLen);
+  return tlen;
+}
+
+static FORCE_INLINE void* tDecodeSMqMetaRsp(const void* buf, SMqMetaRsp* pRsp) {
+  buf = taosDecodeFixedI64(buf, &pRsp->reqOffset);
+  buf = taosDecodeFixedI64(buf, &pRsp->rspOffset);
+  buf = taosDecodeFixedI16(buf, &pRsp->resMsgType);
+  buf = taosDecodeFixedI32(buf, &pRsp->metaRspLen);
+  buf = taosDecodeBinary(buf, &pRsp->metaRsp, pRsp->metaRspLen);
+  return (void*)buf;
+}
+
 typedef struct {
  SMqRspHead head;
  int64_t    reqOffset;
--- a/include/common/tmsgdef.h
+++ b/include/common/tmsgdef.h
@ -131,6 +131,7 @@ enum {
  TD_DEF_MSG_TYPE(TDMT_MND_DROP_INDEX, "drop-index", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_MND_GET_INDEX, "get-index", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_MND_GET_TABLE_INDEX, "get-table-index", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_MND_TABLE_CFG, "table-cfg", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_MND_CREATE_TOPIC, "create-topic", SMCreateTopicReq, SMCreateTopicRsp)
  TD_DEF_MSG_TYPE(TDMT_MND_ALTER_TOPIC, "alter-topic", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_MND_DROP_TOPIC, "drop-topic", NULL, NULL)
@ -171,6 +172,7 @@ enum {
  TD_DEF_MSG_TYPE(TDMT_VND_UPDATE_TAG_VAL, "update-tag-val", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_TABLE_META, "vnode-table-meta", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_TABLES_META, "vnode-tables-meta", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_VND_TABLE_CFG, "vnode-table-cfg", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_CREATE_STB, "vnode-create-stb", SVCreateStbReq, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_ALTER_STB, "vnode-alter-stb", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_DROP_STB, "vnode-drop-stb", SVDropStbReq, NULL)
@ -187,7 +189,6 @@ enum {
  TD_DEF_MSG_TYPE(TDMT_VND_CONSUME, "vnode-consume", SMqPollReq, SMqDataBlkRsp)
  TD_DEF_MSG_TYPE(TDMT_VND_STREAM_TRIGGER, "vnode-stream-trigger", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_STREAM_DISPATCH_WRITE, "vnode-stream-task-dispatch-write", NULL, NULL)
-  TD_DEF_MSG_TYPE(TDMT_VND_STREAM_TASK_DROP, "vnode-stream-task-drop", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_CREATE_SMA, "vnode-create-sma", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_CANCEL_SMA, "vnode-cancel-sma", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_VND_DROP_SMA, "vnode-drop-sma", NULL, NULL)
@ -204,6 +205,7 @@ enum {
  //shared by snode and vnode
  TD_NEW_MSG_SEG(TDMT_STREAM_MSG)
  TD_DEF_MSG_TYPE(TDMT_STREAM_TASK_DEPLOY, "stream-task-deploy", SStreamTaskDeployReq, SStreamTaskDeployRsp)
+  TD_DEF_MSG_TYPE(TDMT_STREAM_TASK_DROP, "stream-task-drop", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_STREAM_TASK_RUN, "stream-task-run", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_STREAM_TASK_DISPATCH, "stream-task-dispatch", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_STREAM_TASK_RECOVER, "stream-task-recover", NULL, NULL)
@ -236,6 +238,7 @@ enum {
  TD_DEF_MSG_TYPE(TDMT_SYNC_COMMON_RESPONSE, "sync-common-response", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_SYNC_APPLY_MSG, "sync-apply-msg", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_SYNC_CONFIG_CHANGE, "sync-config-change", NULL, NULL)
+  TD_DEF_MSG_TYPE(TDMT_SYNC_CONFIG_CHANGE_FINISH, "sync-config-change-finish", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_SYNC_SNAPSHOT_SEND, "sync-snapshot-send", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_SYNC_SNAPSHOT_RSP, "sync-snapshot-rsp", NULL, NULL)
  TD_DEF_MSG_TYPE(TDMT_SYNC_LEADER_TRANSFER, "sync-leader-transfer", NULL, NULL)
--- a/include/common/tname.h
+++ b/include/common/tname.h
@ -63,6 +63,8 @@ int32_t tNameSetAcctId(SName* dst, int32_t acctId);

 bool tNameDBNameEqual(SName* left, SName* right);

+bool tNameTbNameEqual(SName* left, SName* right);
+
 typedef struct {
  // input
  SArray*     tags;           // element is SSmlKv
--- a/include/dnode/mnode/mnode.h
+++ b/include/dnode/mnode/mnode.h
@ -95,8 +95,8 @@ int32_t mndGetLoad(SMnode *pMnode, SMnodeLoad *pLoad);
 */
 int32_t mndProcessRpcMsg(SRpcMsg *pMsg);
 int32_t mndProcessSyncMsg(SRpcMsg *pMsg);
-int32_t mndPreProcessMsg(SRpcMsg *pMsg);
-void mndAbortPreprocessMsg(SRpcMsg *pMsg);
+int32_t mndPreProcessQueryMsg(SRpcMsg *pMsg);
+void    mndPostProcessQueryMsg(SRpcMsg *pMsg);

 /**
 * @brief Generate machine code
--- a/include/libs/catalog/catalog.h
+++ b/include/libs/catalog/catalog.h
@ -68,7 +68,9 @@ typedef struct SCatalogReq {
  SArray* pIndex;         // element is index name
  SArray* pUser;          // element is SUserAuthInfo
  SArray* pTableIndex;    // element is SNAME
+  SArray* pTableCfg;      // element is SNAME
  bool    qNodeRequired;  // valid qnode
+  bool    dNodeRequired;  // valid dnode
  bool    forceUpdate;
 } SCatalogReq;

@ -88,6 +90,8 @@ typedef struct SMetaData {
  SArray* pIndex;       // pRes = SIndexInfo*
  SArray* pUser;        // pRes = bool*
  SArray* pQnodeList;   // pRes = SArray<SQueryNodeLoad>*
+  SArray* pTableCfg;    // pRes = STableCfg*
+  SArray* pDnodeList;   // pRes = SArray<SEpSet>*
 } SMetaData;

 typedef struct SCatalogCfg {
@ -268,6 +272,8 @@ int32_t catalogAsyncGetAllMeta(SCatalog* pCtg, SRequestConnInfo* pConn, uint64_t

 int32_t catalogGetQnodeList(SCatalog* pCatalog, SRequestConnInfo* pConn, SArray* pQnodeList);

+int32_t catalogGetDnodeList(SCatalog* pCatalog, SRequestConnInfo* pConn, SArray** pDnodeList);
+
 int32_t catalogGetExpiredSTables(SCatalog* pCatalog, SSTableVersion **stables, uint32_t *num);

 int32_t catalogGetExpiredDBs(SCatalog* pCatalog, SDbVgVersion** dbs, uint32_t* num);
@ -280,6 +286,8 @@ int32_t catalogGetIndexMeta(SCatalog* pCtg, SRequestConnInfo* pConn, const char*

 int32_t catalogGetTableIndex(SCatalog* pCtg, SRequestConnInfo* pConn, const SName* pTableName, SArray** pRes);

+int32_t catalogRefreshGetTableCfg(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableCfg** pCfg);
+
 int32_t catalogUpdateTableIndex(SCatalog* pCtg, STableIndexRsp *pRsp);

 int32_t catalogGetUdfInfo(SCatalog* pCtg, SRequestConnInfo* pConn, const char* funcName, SFuncInfo* pInfo);
--- a/include/libs/function/function.h
+++ b/include/libs/function/function.h
@ -67,7 +67,7 @@ typedef struct SResultRowEntryInfo {
  bool     initialized:1;     // output buffer has been initialized
  bool     complete:1;        // query has completed
  uint8_t  isNullRes:6;       // the result is null
-  uint8_t  numOfRes;          // num of output result in current buffer
+  uint16_t numOfRes;          // num of output result in current buffer
 } SResultRowEntryInfo;

 // determine the real data need to calculated the result
--- a/include/libs/function/functionMgt.h
+++ b/include/libs/function/functionMgt.h
@ -190,6 +190,7 @@ bool fmIsForbidWindowFunc(int32_t funcId);
 bool fmIsForbidGroupByFunc(int32_t funcId);
 bool fmIsIntervalInterpoFunc(int32_t funcId);
 bool fmIsInterpFunc(int32_t funcId);
+bool fmIsLastRowFunc(int32_t funcId);

 int32_t fmGetDistMethod(const SFunctionNode* pFunc, SFunctionNode** pPartialFunc, SFunctionNode** pMergeFunc);

--- a/include/libs/nodes/cmdnodes.h
+++ b/include/libs/nodes/cmdnodes.h
@ -28,6 +28,15 @@ extern "C" {
 #define DESCRIBE_RESULT_TYPE_LEN  (20 + VARSTR_HEADER_SIZE)
 #define DESCRIBE_RESULT_NOTE_LEN  (8 + VARSTR_HEADER_SIZE)

+#define SHOW_CREATE_DB_RESULT_COLS      2
+#define SHOW_CREATE_DB_RESULT_FIELD1_LEN (TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE)
+#define SHOW_CREATE_DB_RESULT_FIELD2_LEN (TSDB_MAX_BINARY_LEN + VARSTR_HEADER_SIZE)
+
+#define SHOW_CREATE_TB_RESULT_COLS      2
+#define SHOW_CREATE_TB_RESULT_FIELD1_LEN (TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE)
+#define SHOW_CREATE_TB_RESULT_FIELD2_LEN (TSDB_MAX_BINARY_LEN + VARSTR_HEADER_SIZE)
+
+
 #define PRIVILEGE_TYPE_MASK(n) (1 << n)

 #define PRIVILEGE_TYPE_ALL   PRIVILEGE_TYPE_MASK(0)
@ -119,14 +128,14 @@ typedef struct SCreateTableStmt {
 } SCreateTableStmt;

 typedef struct SCreateSubTableClause {
-  ENodeType  type;
-  char       dbName[TSDB_DB_NAME_LEN];
-  char       tableName[TSDB_TABLE_NAME_LEN];
-  char       useDbName[TSDB_DB_NAME_LEN];
-  char       useTableName[TSDB_TABLE_NAME_LEN];
-  bool       ignoreExists;
-  SNodeList* pSpecificTags;
-  SNodeList* pValsOfTags;
+  ENodeType      type;
+  char           dbName[TSDB_DB_NAME_LEN];
+  char           tableName[TSDB_TABLE_NAME_LEN];
+  char           useDbName[TSDB_DB_NAME_LEN];
+  char           useTableName[TSDB_TABLE_NAME_LEN];
+  bool           ignoreExists;
+  SNodeList*     pSpecificTags;
+  SNodeList*     pValsOfTags;
  STableOptions* pOptions;
 } SCreateSubTableClause;

@ -221,7 +230,7 @@ typedef struct SShowCreateTableStmt {
  ENodeType   type;
  char        dbName[TSDB_DB_NAME_LEN];
  char        tableName[TSDB_TABLE_NAME_LEN];
-  STableMeta* pMeta;
+  void*       pCfg; // STableCfg
 } SShowCreateTableStmt;

 typedef struct SShowTableDistributedStmt {
@ -230,6 +239,11 @@ typedef struct SShowTableDistributedStmt {
  char      tableName[TSDB_TABLE_NAME_LEN];
 } SShowTableDistributedStmt;

+typedef struct SShowDnodeVariablesStmt {
+  ENodeType type;
+  SNode*    pDnodeId;
+} SShowDnodeVariablesStmt;
+
 typedef enum EIndexType { INDEX_TYPE_SMA = 1, INDEX_TYPE_FULLTEXT } EIndexType;

 typedef struct SIndexOptions {
--- a/include/libs/nodes/nodes.h
+++ b/include/libs/nodes/nodes.h
@ -59,10 +59,10 @@ extern "C" {
  for (SListCell* cell = (NULL != (list) ? (list)->pHead : NULL); \
       (NULL != cell ? (node = &(cell->pNode), true) : (node = NULL, false)); cell = cell->pNext)

-#define DESTORY_LIST(list)    \
-  do {                        \
-    nodesDestroyList((list)); \
-    (list) = NULL;            \
+#define NODES_DESTORY_LIST(list) \
+  do {                           \
+    nodesDestroyList((list));    \
+    (list) = NULL;               \
  } while (0)

 #define NODES_CLEAR_LIST(list) \
@ -180,7 +180,9 @@ typedef enum ENodeType {
  QUERY_NODE_SHOW_VNODES_STMT,
  QUERY_NODE_SHOW_APPS_STMT,
  QUERY_NODE_SHOW_SCORES_STMT,
-  QUERY_NODE_SHOW_VARIABLE_STMT,
+  QUERY_NODE_SHOW_VARIABLES_STMT,
+  QUERY_NODE_SHOW_LOCAL_VARIABLES_STMT,
+  QUERY_NODE_SHOW_DNODE_VARIABLES_STMT,
  QUERY_NODE_SHOW_CREATE_DATABASE_STMT,
  QUERY_NODE_SHOW_CREATE_TABLE_STMT,
  QUERY_NODE_SHOW_CREATE_STABLE_STMT,
@ -217,6 +219,7 @@ typedef enum ENodeType {
  QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN,
  QUERY_NODE_PHYSICAL_PLAN_SYSTABLE_SCAN,
  QUERY_NODE_PHYSICAL_PLAN_BLOCK_DIST_SCAN,
+  QUERY_NODE_PHYSICAL_PLAN_LAST_ROW_SCAN,
  QUERY_NODE_PHYSICAL_PLAN_PROJECT,
  QUERY_NODE_PHYSICAL_PLAN_MERGE_JOIN,
  QUERY_NODE_PHYSICAL_PLAN_HASH_AGG,
@ -224,7 +227,7 @@ typedef enum ENodeType {
  QUERY_NODE_PHYSICAL_PLAN_MERGE,
  QUERY_NODE_PHYSICAL_PLAN_SORT,
  QUERY_NODE_PHYSICAL_PLAN_HASH_INTERVAL,
-  QUERY_NODE_PHYSICAL_PLAN_MERGE_INTERVAL,
+  QUERY_NODE_PHYSICAL_PLAN_MERGE_ALIGNED_INTERVAL,
  QUERY_NODE_PHYSICAL_PLAN_STREAM_INTERVAL,
  QUERY_NODE_PHYSICAL_PLAN_STREAM_FINAL_INTERVAL,
  QUERY_NODE_PHYSICAL_PLAN_STREAM_SEMI_INTERVAL,
--- a/include/libs/nodes/plannodes.h
+++ b/include/libs/nodes/plannodes.h
@ -40,7 +40,8 @@ typedef enum EScanType {
  SCAN_TYPE_SYSTEM_TABLE,
  SCAN_TYPE_STREAM,
  SCAN_TYPE_TABLE_MERGE,
-  SCAN_TYPE_BLOCK_INFO
+  SCAN_TYPE_BLOCK_INFO,
+  SCAN_TYPE_LAST_ROW
 } EScanType;

 typedef struct SScanLogicNode {
@ -260,6 +261,7 @@ typedef struct SScanPhysiNode {

 typedef SScanPhysiNode STagScanPhysiNode;
 typedef SScanPhysiNode SBlockDistScanPhysiNode;
+typedef SScanPhysiNode SLastRowScanPhysiNode;

 typedef struct SSystemTableScanPhysiNode {
  SScanPhysiNode scan;
@ -375,7 +377,7 @@ typedef struct SIntervalPhysiNode {
  int8_t           slidingUnit;
 } SIntervalPhysiNode;

-typedef SIntervalPhysiNode SMergeIntervalPhysiNode;
+typedef SIntervalPhysiNode SMergeAlignedIntervalPhysiNode;
 typedef SIntervalPhysiNode SStreamIntervalPhysiNode;
 typedef SIntervalPhysiNode SStreamFinalIntervalPhysiNode;
 typedef SIntervalPhysiNode SStreamSemiIntervalPhysiNode;
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@ -52,7 +52,7 @@ typedef struct SExprNode {
  SArray*   pAssociation;
 } SExprNode;

-typedef enum EColumnType { COLUMN_TYPE_COLUMN = 1, COLUMN_TYPE_TAG } EColumnType;
+typedef enum EColumnType { COLUMN_TYPE_COLUMN = 1, COLUMN_TYPE_TAG, COLUMN_TYPE_TBNAME } EColumnType;

 typedef struct SColumnNode {
  SExprNode   node;  // QUERY_NODE_COLUMN
@ -258,6 +258,7 @@ typedef struct SSelectStmt {
  bool        hasUniqueFunc;
  bool        hasTailFunc;
  bool        hasInterpFunc;
+  bool        hasLastRowFunc;
 } SSelectStmt;

 typedef enum ESetOperatorType { SET_OP_TYPE_UNION_ALL = 1, SET_OP_TYPE_UNION } ESetOperatorType;
--- a/include/libs/qcom/query.h
+++ b/include/libs/qcom/query.h
@ -207,6 +207,10 @@ char*   jobTaskStatusStr(int32_t status);

 SSchema createSchema(int8_t type, int32_t bytes, col_id_t colId, const char* name);
 void destroyQueryExecRes(SQueryExecRes* pRes);
+int32_t dataConverToStr(char *str, int type, void *buf, int32_t bufSize, int32_t *len);
+char* parseTagDatatoJson(void* p);
+int32_t cloneTableMeta(STableMeta* pSrc, STableMeta** pDst);
+int32_t cloneDbVgInfo(SDBVgInfo* pSrc, SDBVgInfo** pDst);

 extern int32_t (*queryBuildMsg[TDMT_MAX])(void *input, char **msg, int32_t msgSize, int32_t *msgLen, void*(*mallocFp)(int32_t));
 extern int32_t (*queryProcessMsgRsp[TDMT_MAX])(void* output, char* msg, int32_t msgSize);
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@ -30,9 +30,14 @@ extern "C" {
 typedef struct SStreamTask SStreamTask;

 enum {
-  TASK_STATUS__IDLE = 1,
-  TASK_STATUS__EXECUTING,
-  TASK_STATUS__CLOSING,
+  TASK_STATUS__NORMAL = 0,
+  TASK_STATUS__DROPPING,
+};
+
+enum {
+  TASK_EXEC_STATUS__IDLE = 1,
+  TASK_EXEC_STATUS__EXECUTING,
+  TASK_EXEC_STATUS__CLOSING,
 };

 enum {
@ -50,16 +55,12 @@ enum {
  TASK_OUTPUT_STATUS__BLOCKED,
 };

-enum {
-  STREAM_CREATED_BY__USER = 1,
-  STREAM_CREATED_BY__SMA,
-};
-
 enum {
  STREAM_INPUT__DATA_SUBMIT = 1,
  STREAM_INPUT__DATA_BLOCK,
  STREAM_INPUT__TRIGGER,
  STREAM_INPUT__CHECKPOINT,
+  STREAM_INPUT__DROP,
 };

 typedef struct {
@ -152,7 +153,6 @@ void*   streamDataBlockDecode(const void* buf, SStreamDataBlock* pInput);
 typedef struct {
  char* qmsg;
  // followings are not applicable to encoder and decoder
-  // void* inputHandle;
  void* executor;
 } STaskExec;

@ -238,7 +238,9 @@ struct SStreamTask {
  int64_t streamId;
  int32_t taskId;
  int8_t  inputType;
-  int8_t  status;
+  int8_t  taskStatus;
+
+  int8_t execStatus;

  int8_t  execType;
  int8_t  sinkType;
@ -400,15 +402,13 @@ typedef struct {

 int32_t tDecodeStreamDispatchReq(SDecoder* pDecoder, SStreamDispatchReq* pReq);

-int32_t streamLaunchByWrite(SStreamTask* pTask, int32_t vgId, SMsgCb* pMsgCb);
+int32_t streamLaunchByWrite(SStreamTask* pTask, int32_t vgId);
 int32_t streamSetupTrigger(SStreamTask* pTask);

-int32_t streamTaskRun(SStreamTask* pTask);
-
-int32_t streamTaskProcessRunReq(SStreamTask* pTask, SMsgCb* pMsgCb);
-int32_t streamProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchReq* pReq, SRpcMsg* pMsg);
-int32_t streamProcessDispatchRsp(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchRsp* pRsp);
-int32_t streamProcessRecoverReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamTaskRecoverReq* pReq, SRpcMsg* pMsg);
+int32_t streamProcessRunReq(SStreamTask* pTask);
+int32_t streamProcessDispatchReq(SStreamTask* pTask, SStreamDispatchReq* pReq, SRpcMsg* pMsg);
+int32_t streamProcessDispatchRsp(SStreamTask* pTask, SStreamDispatchRsp* pRsp);
+int32_t streamProcessRecoverReq(SStreamTask* pTask, SStreamTaskRecoverReq* pReq, SRpcMsg* pMsg);
 int32_t streamProcessRecoverRsp(SStreamTask* pTask, SStreamTaskRecoverRsp* pRsp);

 #ifdef __cplusplus
--- a/include/libs/sync/sync.h
+++ b/include/libs/sync/sync.h
@ -24,6 +24,8 @@ extern "C" {
 #include "tdef.h"
 #include "tmsgcb.h"

+extern bool gRaftDetailLog;
+
 #define SYNC_INDEX_BEGIN 0
 #define SYNC_INDEX_INVALID -1

@ -61,28 +63,35 @@ typedef struct SSyncCfg {
 } SSyncCfg;

 typedef struct SFsmCbMeta {
-  SyncIndex  index;
-  SyncIndex  lastConfigIndex;
-  bool       isWeak;
  int32_t    code;
-  ESyncState state;
-  uint64_t   seqNum;
+  SyncIndex  index;
  SyncTerm   term;
+  uint64_t   seqNum;
+  SyncIndex  lastConfigIndex;
+  ESyncState state;
  SyncTerm   currentTerm;
+  bool       isWeak;
  uint64_t   flag;
 } SFsmCbMeta;

 typedef struct SReConfigCbMeta {
-  int32_t   code;
-  SyncIndex index;
-  SyncTerm  term;
-  SyncIndex lastConfigIndex;
-  SyncTerm  currentTerm;
+  int32_t    code;
+  SyncIndex  index;
+  SyncTerm   term;
+  uint64_t   seqNum;
+  SyncIndex  lastConfigIndex;
+  ESyncState state;
+  SyncTerm   currentTerm;
+  bool       isWeak;
+  uint64_t   flag;
+
+  // config info
  SSyncCfg  oldCfg;
  SSyncCfg  newCfg;
-  bool      isDrop;
-  uint64_t  flag;
-  uint64_t  seqNum;
+  SyncIndex newCfgIndex;
+  SyncTerm  newCfgTerm;
+  uint64_t  newCfgSeqNum;
+
 } SReConfigCbMeta;

 typedef struct SSnapshot {
@ -107,8 +116,7 @@ typedef struct SSyncFSM {
  void (*FpReConfigCb)(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SReConfigCbMeta cbMeta);
  void (*FpLeaderTransferCb)(struct SSyncFSM* pFsm, const SRpcMsg* pMsg, SFsmCbMeta cbMeta);

-
-  int32_t (*FpGetSnapshot)(struct SSyncFSM* pFsm, SSnapshot* pSnapshot, void *pReaderParam, void** ppReader);
+  int32_t (*FpGetSnapshot)(struct SSyncFSM* pFsm, SSnapshot* pSnapshot, void* pReaderParam, void** ppReader);
  int32_t (*FpGetSnapshotInfo)(struct SSyncFSM* pFsm, SSnapshot* pSnapshot);

  int32_t (*FpSnapshotStartRead)(struct SSyncFSM* pFsm, void** ppReader);
@ -154,7 +162,7 @@ typedef struct SSyncLogStore {
  SyncIndex (*syncLogEndIndex)(struct SSyncLogStore* pLogStore);
  bool (*syncLogIsEmpty)(struct SSyncLogStore* pLogStore);
  int32_t (*syncLogEntryCount)(struct SSyncLogStore* pLogStore);
-  bool (*syncLogInRange)(struct SSyncLogStore* pLogStore, SyncIndex index);
+  // bool (*syncLogInRange)(struct SSyncLogStore* pLogStore, SyncIndex index);

  SyncIndex (*syncLogWriteIndex)(struct SSyncLogStore* pLogStore);
  SyncIndex (*syncLogLastIndex)(struct SSyncLogStore* pLogStore);
@ -189,14 +197,13 @@ ESyncState  syncGetMyRole(int64_t rid);
 bool        syncIsReady(int64_t rid);
 const char* syncGetMyRoleStr(int64_t rid);
 SyncTerm    syncGetMyTerm(int64_t rid);
+SyncGroupId syncGetVgId(int64_t rid);
 void        syncGetEpSet(int64_t rid, SEpSet* pEpSet);
-int32_t     syncGetVgId(int64_t rid);
 int32_t     syncPropose(int64_t rid, const SRpcMsg* pMsg, bool isWeak);
 bool        syncEnvIsStart();
 const char* syncStr(ESyncState state);
 bool        syncIsRestoreFinish(int64_t rid);

-
 int32_t syncReconfig(int64_t rid, const SSyncCfg* pNewCfg);

 // build SRpcMsg, need to call syncPropose with SRpcMsg
--- a/include/libs/sync/syncTools.h
+++ b/include/libs/sync/syncTools.h
@ -489,6 +489,40 @@ void syncLeaderTransferPrint2(char* s, const SyncLeaderTransfer* pMsg);
 void syncLeaderTransferLog(const SyncLeaderTransfer* pMsg);
 void syncLeaderTransferLog2(char* s, const SyncLeaderTransfer* pMsg);

+
+// ---------------------------------------------
+typedef struct SyncReconfigFinish {
+  uint32_t bytes;
+  int32_t  vgId;
+  uint32_t msgType;
+  SSyncCfg oldCfg;
+  SSyncCfg newCfg;
+  SyncIndex newCfgIndex;
+  SyncTerm newCfgTerm;
+  uint64_t newCfgSeqNum;
+
+} SyncReconfigFinish;
+
+SyncReconfigFinish* syncReconfigFinishBuild(int32_t vgId);
+void                syncReconfigFinishDestroy(SyncReconfigFinish* pMsg);
+void                syncReconfigFinishSerialize(const SyncReconfigFinish* pMsg, char* buf, uint32_t bufLen);
+void                syncReconfigFinishDeserialize(const char* buf, uint32_t len, SyncReconfigFinish* pMsg);
+char*               syncReconfigFinishSerialize2(const SyncReconfigFinish* pMsg, uint32_t* len);
+SyncReconfigFinish* syncReconfigFinishDeserialize2(const char* buf, uint32_t len);
+void                syncReconfigFinish2RpcMsg(const SyncReconfigFinish* pMsg, SRpcMsg* pRpcMsg);
+void                syncReconfigFinishFromRpcMsg(const SRpcMsg* pRpcMsg, SyncReconfigFinish* pMsg);
+SyncReconfigFinish* syncReconfigFinishFromRpcMsg2(const SRpcMsg* pRpcMsg);
+cJSON*              syncReconfigFinish2Json(const SyncReconfigFinish* pMsg);
+char*               syncReconfigFinish2Str(const SyncReconfigFinish* pMsg);
+
+// for debug ----------------------
+void syncReconfigFinishPrint(const SyncReconfigFinish* pMsg);
+void syncReconfigFinishPrint2(char* s, const SyncReconfigFinish* pMsg);
+void syncReconfigFinishLog(const SyncReconfigFinish* pMsg);
+void syncReconfigFinishLog2(char* s, const SyncReconfigFinish* pMsg);
+
+
+
 // on message ----------------------
 int32_t syncNodeOnPingCb(SSyncNode* ths, SyncPing* pMsg);
 int32_t syncNodeOnPingReplyCb(SSyncNode* ths, SyncPingReply* pMsg);
--- a/include/os/osTime.h
+++ b/include/os/osTime.h
@ -38,7 +38,7 @@ extern "C" {

 #define MILLISECOND_PER_SECOND (1000i64)
 #else
-#define MILLISECOND_PER_SECOND ((int64_t)1000L)
+#define MILLISECOND_PER_SECOND ((int64_t)1000LL)
 #endif

 #define MILLISECOND_PER_MINUTE (MILLISECOND_PER_SECOND * 60)
@ -46,9 +46,9 @@ extern "C" {
 #define MILLISECOND_PER_DAY    (MILLISECOND_PER_HOUR * 24)
 #define MILLISECOND_PER_WEEK   (MILLISECOND_PER_DAY * 7)

-#define NANOSECOND_PER_USEC   (1000L)
-#define NANOSECOND_PER_MSEC   (1000000L)
-#define NANOSECOND_PER_SEC    (1000000000L)
+#define NANOSECOND_PER_USEC   (1000LL)
+#define NANOSECOND_PER_MSEC   (1000000LL)
+#define NANOSECOND_PER_SEC    (1000000000LL)
 #define NANOSECOND_PER_MINUTE (NANOSECOND_PER_SEC * 60)
 #define NANOSECOND_PER_HOUR   (NANOSECOND_PER_MINUTE * 60)
 #define NANOSECOND_PER_DAY    (NANOSECOND_PER_HOUR * 24)
@ -65,21 +65,21 @@ int32_t taosGetTimestampSec();
 static FORCE_INLINE int64_t taosGetTimestampMs() {
  struct timeval systemTime;
  taosGetTimeOfDay(&systemTime);
-  return (int64_t)systemTime.tv_sec * 1000L + (int64_t)systemTime.tv_usec / 1000;
+  return (int64_t)systemTime.tv_sec * 1000LL + (int64_t)systemTime.tv_usec / 1000;
 }

 //@return timestamp in microsecond
 static FORCE_INLINE int64_t taosGetTimestampUs() {
  struct timeval systemTime;
  taosGetTimeOfDay(&systemTime);
-  return (int64_t)systemTime.tv_sec * 1000000L + (int64_t)systemTime.tv_usec;
+  return (int64_t)systemTime.tv_sec * 1000000LL + (int64_t)systemTime.tv_usec;
 }

 //@return timestamp in nanosecond
 static FORCE_INLINE int64_t taosGetTimestampNs() {
  struct timespec systemTime = {0};
  taosClockGetTime(CLOCK_REALTIME, &systemTime);
-  return (int64_t)systemTime.tv_sec * 1000000000L + (int64_t)systemTime.tv_nsec;
+  return (int64_t)systemTime.tv_sec * 1000000000LL + (int64_t)systemTime.tv_nsec;
 }

 char *     taosStrpTime(const char *buf, const char *fmt, struct tm *tm);
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@ -129,6 +129,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_TSC_STMT_CLAUSE_ERROR         TAOS_DEF_ERROR_CODE(0, 0X0227)
 #define TSDB_CODE_TSC_QUERY_KILLED              TAOS_DEF_ERROR_CODE(0, 0X0228)
 #define TSDB_CODE_TSC_NO_EXEC_NODE              TAOS_DEF_ERROR_CODE(0, 0X0229)
+#define TSDB_CODE_TSC_NOT_STABLE_ERROR          TAOS_DEF_ERROR_CODE(0, 0X022a)

 // mnode-common
 #define TSDB_CODE_MND_APP_ERROR                 TAOS_DEF_ERROR_CODE(0, 0x0300)
@ -416,6 +417,10 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_SYN_NOT_LEADER                TAOS_DEF_ERROR_CODE(0, 0x090C)
 #define TSDB_CODE_SYN_ONE_REPLICA               TAOS_DEF_ERROR_CODE(0, 0x090D)
 #define TSDB_CODE_SYN_NOT_IN_NEW_CONFIG         TAOS_DEF_ERROR_CODE(0, 0x090E)
+#define TSDB_CODE_SYN_NEW_CONFIG_ERROR          TAOS_DEF_ERROR_CODE(0, 0x090F)
+#define TSDB_CODE_SYN_RECONFIG_NOT_READY        TAOS_DEF_ERROR_CODE(0, 0x0910)
+#define TSDB_CODE_SYN_PROPOSE_NOT_READY         TAOS_DEF_ERROR_CODE(0, 0x0911)
+#define TSDB_CODE_SYN_STANDBY_NOT_READY         TAOS_DEF_ERROR_CODE(0, 0x0912)
 #define TSDB_CODE_SYN_INTERNAL_ERROR            TAOS_DEF_ERROR_CODE(0, 0x09FF)

 // tq
--- a/include/util/tdef.h
+++ b/include/util/tdef.h
@ -49,12 +49,12 @@ extern const int32_t TYPE_BYTES[16];
 #define TSDB_DATA_BOOL_NULL      0x02
 #define TSDB_DATA_TINYINT_NULL   0x80
 #define TSDB_DATA_SMALLINT_NULL  0x8000
-#define TSDB_DATA_INT_NULL       0x80000000L
-#define TSDB_DATA_BIGINT_NULL    0x8000000000000000L
+#define TSDB_DATA_INT_NULL       0x80000000LL
+#define TSDB_DATA_BIGINT_NULL    0x8000000000000000LL
 #define TSDB_DATA_TIMESTAMP_NULL TSDB_DATA_BIGINT_NULL

 #define TSDB_DATA_FLOAT_NULL  0x7FF00000           // it is an NAN
-#define TSDB_DATA_DOUBLE_NULL 0x7FFFFF0000000000L  // an NAN
+#define TSDB_DATA_DOUBLE_NULL 0x7FFFFF0000000000LL  // an NAN
 #define TSDB_DATA_NCHAR_NULL  0xFFFFFFFF
 #define TSDB_DATA_BINARY_NULL 0xFF

@ -108,8 +108,8 @@ extern const int32_t TYPE_BYTES[16];
 #define TSDB_INS_USER_STABLES_DBNAME_COLID 2

 #define TSDB_TICK_PER_SECOND(precision)                      \
-  ((int64_t)((precision) == TSDB_TIME_PRECISION_MILLI ? 1e3L \
-                                                      : ((precision) == TSDB_TIME_PRECISION_MICRO ? 1e6L : 1e9L)))
+  ((int64_t)((precision) == TSDB_TIME_PRECISION_MILLI ? 1000LL \
+                                                      : ((precision) == TSDB_TIME_PRECISION_MICRO ? 1000000LL : 1000000000LL)))

 #define T_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
 #define T_APPEND_MEMBER(dst, ptr, type, member)                                     \
--- a/include/util/tpagedbuf.h
+++ b/include/util/tpagedbuf.h
@ -28,7 +28,7 @@ typedef struct SArray*       SIDList;
 typedef struct SPageInfo     SPageInfo;
 typedef struct SDiskbasedBuf SDiskbasedBuf;

-#define DEFAULT_INTERN_BUF_PAGE_SIZE (1024L)  // in bytes
+#define DEFAULT_INTERN_BUF_PAGE_SIZE (1024LL)  // in bytes

 typedef struct SFilePage {
  int32_t num;
--- a/include/util/types.h
+++ b/include/util/types.h
@ -32,7 +32,7 @@ extern "C" {
 #define GET_UINT64_VAL(x) (*(uint64_t *)(x))

 static FORCE_INLINE float taos_align_get_float(const char *pBuf) {
-#if __STDC_VERSION__ >= 201112L
+#if __STDC_VERSION__ >= 201112LL
  static_assert(sizeof(float) == sizeof(uint32_t), "sizeof(float) must equal to sizeof(uint32_t)");
 #else
  assert(sizeof(float) == sizeof(uint32_t));
@ -43,7 +43,7 @@ static FORCE_INLINE float taos_align_get_float(const char *pBuf) {
 }

 static FORCE_INLINE double taos_align_get_double(const char *pBuf) {
-#if __STDC_VERSION__ >= 201112L
+#if __STDC_VERSION__ >= 201112LL
  static_assert(sizeof(double) == sizeof(uint64_t), "sizeof(double) must equal to sizeof(uint64_t)");
 #else
  assert(sizeof(double) == sizeof(uint64_t));
--- a/packaging/tools/install.sh
+++ b/packaging/tools/install.sh
@ -196,7 +196,6 @@ function install_bin() {
  ${csudo}rm -f ${bin_link_dir}/${uninstallScript} || :
  ${csudo}rm -f ${bin_link_dir}/tarbitrator || :
  ${csudo}rm -f ${bin_link_dir}/set_core || :
-  ${csudo}rm -f ${bin_link_dir}/run_${serverName}_and_${adapterName}.sh || :
  ${csudo}rm -f ${bin_link_dir}/TDinsight.sh || :

  ${csudo}cp -r ${script_dir}/bin/* ${install_main_dir}/bin && ${csudo}chmod 0555 ${install_main_dir}/bin/*
@ -211,7 +210,6 @@ function install_bin() {
  [ -x ${install_main_dir}/bin/TDinsight.sh ] && ${csudo}ln -s ${install_main_dir}/bin/TDinsight.sh ${bin_link_dir}/TDinsight.sh || :
  [ -x ${install_main_dir}/bin/remove.sh ] && ${csudo}ln -s ${install_main_dir}/bin/remove.sh ${bin_link_dir}/${uninstallScript} || :
  [ -x ${install_main_dir}/bin/set_core.sh ] && ${csudo}ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core || :
-  [ -x ${install_main_dir}/bin/run_${serverName}_and_${adapterName}.sh ] && ${csudo}ln -s ${install_main_dir}/bin/run_${serverName}_and_${adapterName}.sh ${bin_link_dir}/run_${serverName}_and_${adapterName}.sh || :
  [ -x ${install_main_dir}/bin/tarbitrator ] && ${csudo}ln -s ${install_main_dir}/bin/tarbitrator ${bin_link_dir}/tarbitrator || :

  if [ "$verMode" == "cluster" ]; then
--- a/packaging/tools/make_install.sh
+++ b/packaging/tools/make_install.sh
@ -176,7 +176,6 @@ function install_bin() {
  if [ "$osType" != "Darwin" ]; then
    ${csudo}rm -f ${bin_link_dir}/perfMonitor || :
    ${csudo}rm -f ${bin_link_dir}/set_core || :
-    ${csudo}rm -f ${bin_link_dir}/run_taosd_and_taosadapter.sh || :
    ${csudo}rm -f ${bin_link_dir}/${uninstallScript} || :

    ${csudo}cp -r ${binary_dir}/build/bin/${clientName} ${install_main_dir}/bin || :
@ -191,7 +190,6 @@ function install_bin() {
    ${csudo}cp -r ${script_dir}/taosd-dump-cfg.gdb ${install_main_dir}/bin || :
    ${csudo}cp -r ${script_dir}/remove.sh ${install_main_dir}/bin || :
    ${csudo}cp -r ${script_dir}/set_core.sh ${install_main_dir}/bin || :
-    ${csudo}cp -r ${script_dir}/run_taosd_and_taosadapter.sh ${install_main_dir}/bin || :
    ${csudo}cp -r ${script_dir}/startPre.sh ${install_main_dir}/bin || :

    ${csudo}chmod 0555 ${install_main_dir}/bin/*
@ -204,7 +202,6 @@ function install_bin() {
    [ -x ${install_main_dir}/bin/taosdemo ] && ${csudo}ln -s ${install_main_dir}/bin/taosdemo ${bin_link_dir}/taosdemo || :
    [ -x ${install_main_dir}/bin/perfMonitor ] && ${csudo}ln -s ${install_main_dir}/bin/perfMonitor ${bin_link_dir}/perfMonitor || :
    [ -x ${install_main_dir}/set_core.sh ] && ${csudo}ln -s ${install_main_dir}/bin/set_core.sh ${bin_link_dir}/set_core || :
-    [ -x ${install_main_dir}/run_taosd_and_taosadapter.sh ] && ${csudo}ln -s ${install_main_dir}/bin/run_taosd_and_taosadapter.sh ${bin_link_dir}/run_taosd_and_taosadapter.sh || :
    [ -x ${install_main_dir}/bin/remove.sh ] && ${csudo}ln -s ${install_main_dir}/bin/remove.sh ${bin_link_dir}/${uninstallScript} || :
  else

--- a/packaging/tools/makepkg.sh
+++ b/packaging/tools/makepkg.sh
@ -88,7 +88,6 @@ else
      ${build_dir}/bin/tarbitrator\
      ${script_dir}/remove.sh \
      ${script_dir}/set_core.sh \
-      ${script_dir}/run_taosd_and_taosadapter.sh \
      ${script_dir}/startPre.sh \
      ${script_dir}/taosd-dump-cfg.gdb"
 fi
@ -152,7 +151,6 @@ if [ $adapterName != "taosadapter" ]; then
  sed -i "s/taosadapter/${adapterName}/g" ${install_dir}/cfg/$adapterName.service

  mv ${install_dir}/bin/taosadapter ${install_dir}/bin/${adapterName}
-  mv ${install_dir}/bin/run_taosd_and_taosadapter.sh ${install_dir}/bin/run_${serverName}_and_${adapterName}.sh
  mv ${install_dir}/bin/taosd-dump-cfg.gdb ${install_dir}/bin/${serverName}-dump-cfg.gdb
 fi

--- a/packaging/tools/run_taosd_and_taosadapter.sh
+++ b/packaging/tools/run_taosd_and_taosadapter.sh
@ -1,3 +0,0 @@
-#!/bin/bash
-[[ -x /usr/bin/taosadapter ]] && /usr/bin/taosadapter &
-taosd
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@ -20,9 +20,9 @@
 extern "C" {
 #endif

+#include "catalog.h"
 #include "parser.h"
 #include "planner.h"
-#include "catalog.h"
 #include "query.h"
 #include "taos.h"
 #include "tcommon.h"
@ -51,10 +51,12 @@ extern "C" {
 enum {
  RES_TYPE__QUERY = 1,
  RES_TYPE__TMQ,
+  RES_TYPE__TMQ_META,
 };

-#define TD_RES_QUERY(res) (*(int8_t*)res == RES_TYPE__QUERY)
-#define TD_RES_TMQ(res)   (*(int8_t*)res == RES_TYPE__TMQ)
+#define TD_RES_QUERY(res)    (*(int8_t*)res == RES_TYPE__QUERY)
+#define TD_RES_TMQ(res)      (*(int8_t*)res == RES_TYPE__TMQ)
+#define TD_RES_TMQ_META(res) (*(int8_t*)res == RES_TYPE__TMQ_META)

 typedef struct SAppInstInfo SAppInstInfo;

@ -66,9 +68,9 @@ typedef struct {
  int64_t reportBytes;  // not implemented
  int64_t startTime;
  // ctl
-  SRWLatch lock;  // lock is used in serialization
+  SRWLatch      lock;  // lock is used in serialization
  SAppInstInfo* pAppInstInfo;
-  SHashObj* activeInfo;  // hash<SClientHbKey, SClientHbReq>
+  SHashObj*     activeInfo;  // hash<SClientHbKey, SClientHbReq>
 } SAppHbMgr;

 typedef int32_t (*FHbRspHandle)(SAppHbMgr* pAppHbMgr, SClientHbRsp* pRsp);
@ -76,13 +78,13 @@ typedef int32_t (*FHbRspHandle)(SAppHbMgr* pAppHbMgr, SClientHbRsp* pRsp);
 typedef int32_t (*FHbReqHandle)(SClientHbKey* connKey, void* param, SClientHbReq* req);

 typedef struct {
-  int8_t inited;
-  int64_t       appId;
+  int8_t  inited;
+  int64_t appId;
  // ctl
  int8_t        threadStop;
  TdThread      thread;
-  TdThreadMutex lock;       // used when app init and cleanup
-  SHashObj     *appSummary;
+  TdThreadMutex lock;  // used when app init and cleanup
+  SHashObj*     appSummary;
  SArray*       appHbMgrs;  // SArray<SAppHbMgr*> one for each cluster
  FHbReqHandle  reqHandle[CONN_TYPE__MAX];
  FHbRspHandle  rspHandle[CONN_TYPE__MAX];
@ -129,7 +131,7 @@ typedef struct STscObj {
  int8_t        connType;
  int32_t       acctId;
  uint32_t      connId;
-  TAOS         *id;         // ref ID returned by taosAddRef
+  TAOS*         id;         // ref ID returned by taosAddRef
  TdThreadMutex mutex;      // used to protect the operation on db
  int32_t       numOfReqs;  // number of sqlObj bound to this connection
  SAppInstInfo* pAppInfo;
@ -188,6 +190,14 @@ typedef struct {
  SReqResultInfo resInfo;
 } SMqRspObj;

+typedef struct {
+  int8_t     resType;
+  char       topic[TSDB_TOPIC_FNAME_LEN];
+  char       db[TSDB_DB_FNAME_LEN];
+  int32_t    vgId;
+  SMqMetaRsp metaRsp;
+} SMqMetaRspObj;
+
 typedef struct SRequestObj {
  int8_t               resType;  // query or tmq
  uint64_t             requestId;
@ -206,9 +216,9 @@ typedef struct SRequestObj {
  SRequestSendRecvBody body;
  bool                 stableQuery;

-  bool                 killed;
-  uint32_t             prevCode; //previous error code: todo refactor, add update flag for catalog
-  uint32_t             retry;
+  bool     killed;
+  uint32_t prevCode;  // previous error code: todo refactor, add update flag for catalog
+  uint32_t retry;
 } SRequestObj;

 typedef struct SSyncQueryParam {
@ -216,15 +226,15 @@ typedef struct SSyncQueryParam {
  SRequestObj* pRequest;
 } SSyncQueryParam;

-void*   doAsyncFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
-void*   doFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
+void* doAsyncFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
+void* doFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);

-void    doSetOneRowPtr(SReqResultInfo* pResultInfo);
-void    setResPrecision(SReqResultInfo* pResInfo, int32_t precision);
-int32_t setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveTableRsp* pRsp, bool convertUcs4,
-                              bool freeAfterUse);
-void    setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t numOfCols);
-void    doFreeReqResultInfo(SReqResultInfo* pResInfo);
+void         doSetOneRowPtr(SReqResultInfo* pResultInfo);
+void         setResPrecision(SReqResultInfo* pResInfo, int32_t precision);
+int32_t      setQueryResultFromRsp(SReqResultInfo* pResultInfo, const SRetrieveTableRsp* pRsp, bool convertUcs4,
+                                   bool freeAfterUse);
+void         setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t numOfCols);
+void         doFreeReqResultInfo(SReqResultInfo* pResInfo);
 SRequestObj* execQuery(STscObj* pTscObj, const char* sql, int sqlLen);

 static FORCE_INLINE SReqResultInfo* tmqGetCurResInfo(TAOS_RES* res) {
@ -289,7 +299,7 @@ bool persistConnForSpecificMsg(void* parenct, tmsg_t msgType);
 void processMsgFromServer(void* parent, SRpcMsg* pMsg, SEpSet* pEpSet);

 STscObj* taos_connect_internal(const char* ip, const char* user, const char* pass, const char* auth, const char* db,
-                            uint16_t port, int connType);
+                               uint16_t port, int connType);

 SRequestObj* launchQuery(STscObj* pTscObj, const char* sql, int sqlLen);

@ -299,7 +309,7 @@ int32_t getPlan(SRequestObj* pRequest, SQuery* pQuery, SQueryPlan** pPlan, SArra

 int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj** pRequest);

-void taos_close_internal(void *taos);
+void taos_close_internal(void* taos);

 // --- heartbeat
 // global, called by mgmt
@ -320,12 +330,12 @@ void hbMgrInitMqHbRspHandle();

 SRequestObj* launchQueryImpl(SRequestObj* pRequest, SQuery* pQuery, bool keepQuery, void** res);
 int32_t      scheduleQuery(SRequestObj* pRequest, SQueryPlan* pDag, SArray* pNodeList);
-void         launchAsyncQuery(SRequestObj* pRequest, SQuery* pQuery, SMetaData *pResultMeta);
+void         launchAsyncQuery(SRequestObj* pRequest, SQuery* pQuery, SMetaData* pResultMeta);
 int32_t      refreshMeta(STscObj* pTscObj, SRequestObj* pRequest);
 int32_t      updateQnodeList(SAppInstInfo* pInfo, SArray* pNodeList);
 void         doAsyncQuery(SRequestObj* pRequest, bool forceUpdateMeta);
-int32_t      removeMeta(STscObj* pTscObj, SArray* tbList);// todo move to clientImpl.c and become a static function
-int32_t      handleAlterTbExecRes(void* res, struct SCatalog* pCatalog);// todo move to xxx
+int32_t      removeMeta(STscObj* pTscObj, SArray* tbList);  // todo move to clientImpl.c and become a static function
+int32_t      handleAlterTbExecRes(void* res, struct SCatalog* pCatalog);  // todo move to xxx
 bool         qnodeRequired(SRequestObj* pRequest);

 #ifdef __cplusplus
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@ -244,10 +244,10 @@ void asyncExecLocalCmd(SRequestObj* pRequest, SQuery* pQuery) {
  }

  SReqResultInfo* pResultInfo = &pRequest->body.resInfo;
+  pRequest->code = code;

  if (pRequest->code != TSDB_CODE_SUCCESS) {
    pResultInfo->numOfRows = 0;
-    pRequest->code = code;
    tscError("0x%" PRIx64 " fetch results failed, code:%s, reqId:0x%" PRIx64, pRequest->self, tstrerror(code),
             pRequest->requestId);
  } else {
@ -256,7 +256,7 @@ void asyncExecLocalCmd(SRequestObj* pRequest, SQuery* pQuery) {
             pRequest->requestId);
  }

-  pRequest->body.queryFp(pRequest->body.param, pRequest, 0);
+  pRequest->body.queryFp(pRequest->body.param, pRequest, code);
  //  pRequest->body.fetchFp(pRequest->body.param, pRequest, pResultInfo->numOfRows);
 }

@ -1444,80 +1444,6 @@ static int32_t doPrepareResPtr(SReqResultInfo* pResInfo) {
  return TSDB_CODE_SUCCESS;
 }

-static char* parseTagDatatoJson(void* p) {
-  char*  string = NULL;
-  cJSON* json = cJSON_CreateObject();
-  if (json == NULL) {
-    goto end;
-  }
-
-  SArray* pTagVals = NULL;
-  if (tTagToValArray((const STag*)p, &pTagVals) != 0) {
-    goto end;
-  }
-
-  int16_t nCols = taosArrayGetSize(pTagVals);
-  char    tagJsonKey[256] = {0};
-  for (int j = 0; j < nCols; ++j) {
-    STagVal* pTagVal = (STagVal*)taosArrayGet(pTagVals, j);
-    // json key  encode by binary
-    memset(tagJsonKey, 0, sizeof(tagJsonKey));
-    memcpy(tagJsonKey, pTagVal->pKey, strlen(pTagVal->pKey));
-    // json value
-    char type = pTagVal->type;
-    if (type == TSDB_DATA_TYPE_NULL) {
-      cJSON* value = cJSON_CreateNull();
-      if (value == NULL) {
-        goto end;
-      }
-      cJSON_AddItemToObject(json, tagJsonKey, value);
-    } else if (type == TSDB_DATA_TYPE_NCHAR) {
-      cJSON* value = NULL;
-      if (pTagVal->nData > 0) {
-        char*   tagJsonValue = taosMemoryCalloc(pTagVal->nData, 1);
-        int32_t length = taosUcs4ToMbs((TdUcs4*)pTagVal->pData, pTagVal->nData, tagJsonValue);
-        if (length < 0) {
-          tscError("charset:%s to %s. val:%s convert json value failed.", DEFAULT_UNICODE_ENCODEC, tsCharset,
-                   pTagVal->pData);
-          taosMemoryFree(tagJsonValue);
-          goto end;
-        }
-        value = cJSON_CreateString(tagJsonValue);
-        taosMemoryFree(tagJsonValue);
-        if (value == NULL) {
-          goto end;
-        }
-      } else if (pTagVal->nData == 0) {
-        value = cJSON_CreateString("");
-      } else {
-        ASSERT(0);
-      }
-
-      cJSON_AddItemToObject(json, tagJsonKey, value);
-    } else if (type == TSDB_DATA_TYPE_DOUBLE) {
-      double jsonVd = *(double*)(&pTagVal->i64);
-      cJSON* value = cJSON_CreateNumber(jsonVd);
-      if (value == NULL) {
-        goto end;
-      }
-      cJSON_AddItemToObject(json, tagJsonKey, value);
-    } else if (type == TSDB_DATA_TYPE_BOOL) {
-      char   jsonVd = *(char*)(&pTagVal->i64);
-      cJSON* value = cJSON_CreateBool(jsonVd);
-      if (value == NULL) {
-        goto end;
-      }
-      cJSON_AddItemToObject(json, tagJsonKey, value);
-    } else {
-      ASSERT(0);
-    }
-  }
-  string = cJSON_PrintUnformatted(json);
-end:
-  cJSON_Delete(json);
-  return string;
-}
-
 static int32_t doConvertUCS4(SReqResultInfo* pResultInfo, int32_t numOfRows, int32_t numOfCols, int32_t* colLength) {
  for (int32_t i = 0; i < numOfCols; ++i) {
    int32_t type = pResultInfo->fields[i].type;
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@ -17,6 +17,7 @@
 #include "clientInt.h"
 #include "clientLog.h"
 #include "clientStmt.h"
+#include "functionMgt.h"
 #include "os.h"
 #include "query.h"
 #include "scheduler.h"
@ -25,7 +26,6 @@
 #include "tref.h"
 #include "trpc.h"
 #include "version.h"
-#include "functionMgt.h"

 #define TSC_VAR_NOT_RELEASE 1
 #define TSC_VAR_RELEASED    0
@ -97,11 +97,11 @@ TAOS *taos_connect(const char *ip, const char *user, const char *pass, const cha
    pass = TSDB_DEFAULT_PASS;
  }

-  STscObj* pObj = taos_connect_internal(ip, user, pass, NULL, db, port, CONN_TYPE__QUERY);
+  STscObj *pObj = taos_connect_internal(ip, user, pass, NULL, db, port, CONN_TYPE__QUERY);
  if (pObj) {
    return pObj->id;
  }
-  
+
  return NULL;
 }

@ -111,41 +111,40 @@ void taos_close_internal(void *taos) {
  }

  STscObj *pTscObj = (STscObj *)taos;
-  tscDebug("0x%" PRIx64 " try to close connection, numOfReq:%d", *(int64_t*)pTscObj->id, pTscObj->numOfReqs);
+  tscDebug("0x%" PRIx64 " try to close connection, numOfReq:%d", *(int64_t *)pTscObj->id, pTscObj->numOfReqs);

-  taosRemoveRef(clientConnRefPool, *(int64_t*)pTscObj->id);
+  taosRemoveRef(clientConnRefPool, *(int64_t *)pTscObj->id);
 }

 void taos_close(TAOS *taos) {
  if (taos == NULL) {
    return;
  }
-  
-  STscObj* pObj = acquireTscObj(*(int64_t*)taos);
+
+  STscObj *pObj = acquireTscObj(*(int64_t *)taos);
  if (NULL == pObj) {
    return;
  }
-  
+
  taos_close_internal(pObj);
-  releaseTscObj(*(int64_t*)taos);
+  releaseTscObj(*(int64_t *)taos);
  taosMemoryFree(taos);
 }

-
-int taos_errno(TAOS_RES *tres) {
-  if (tres == NULL) {
+int taos_errno(TAOS_RES *res) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return terrno;
  }

-  if (TD_RES_TMQ(tres)) {
+  if (TD_RES_TMQ(res)) {
    return 0;
  }

-  return ((SRequestObj *)tres)->code;
+  return ((SRequestObj *)res)->code;
 }

 const char *taos_errstr(TAOS_RES *res) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return (const char *)tstrerror(terrno);
  }

@ -179,11 +178,15 @@ void taos_free_result(TAOS_RES *res) {
    if (pRsp->rsp.withSchema) taosArrayDestroyP(pRsp->rsp.blockSchema, (FDelete)tDeleteSSchemaWrapper);
    pRsp->resInfo.pRspMsg = NULL;
    doFreeReqResultInfo(&pRsp->resInfo);
+  } else if (TD_RES_TMQ_META(res)) {
+    SMqMetaRspObj *pRspObj = (SMqMetaRspObj *)res;
+    taosMemoryFree(pRspObj->metaRsp.metaRsp);
+    taosMemoryFree(pRspObj);
  }
 }

 int taos_field_count(TAOS_RES *res) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return 0;
  }

@ -194,7 +197,7 @@ int taos_field_count(TAOS_RES *res) {
 int taos_num_fields(TAOS_RES *res) { return taos_field_count(res); }

 TAOS_FIELD *taos_fetch_fields(TAOS_RES *res) {
-  if (taos_num_fields(res) == 0) {
+  if (taos_num_fields(res) == 0 || TD_RES_TMQ_META(res)) {
    return NULL;
  }

@ -215,8 +218,8 @@ TAOS_RES *taos_query(TAOS *taos, const char *sql) {
    terrno = TSDB_CODE_TSC_DISCONNECTED;
    return NULL;
  }
-  
-  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
+
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
  if (pTscObj == NULL || sql == NULL) {
    terrno = TSDB_CODE_TSC_DISCONNECTED;
    return NULL;
@ -229,21 +232,21 @@ TAOS_RES *taos_query(TAOS *taos, const char *sql) {
  taos_query_a(taos, sql, syncQueryFn, param);
  tsem_wait(&param->sem);

-  releaseTscObj(*(int64_t*)taos);
+  releaseTscObj(*(int64_t *)taos);

  return param->pRequest;
 #else
  size_t sqlLen = strlen(sql);
  if (sqlLen > (size_t)TSDB_MAX_ALLOWED_SQL_LEN) {
-    releaseTscObj(*(int64_t*)taos);
+    releaseTscObj(*(int64_t *)taos);
    tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
    terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
    return NULL;
  }

-  TAOS_RES* pRes = execQuery(pTscObj, sql, sqlLen);
+  TAOS_RES *pRes = execQuery(pTscObj, sql, sqlLen);

-  releaseTscObj(*(int64_t*)taos);
+  releaseTscObj(*(int64_t *)taos);

  return pRes;
 #endif
@ -380,7 +383,7 @@ int taos_print_row(char *str, TAOS_ROW row, TAOS_FIELD *fields, int num_fields)
 }

 int *taos_fetch_lengths(TAOS_RES *res) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return NULL;
  }

@ -389,7 +392,7 @@ int *taos_fetch_lengths(TAOS_RES *res) {
 }

 TAOS_ROW *taos_result_block(TAOS_RES *res) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    terrno = TSDB_CODE_INVALID_PARA;
    return NULL;
  }
@ -438,7 +441,7 @@ const char *taos_data_type(int type) {
 const char *taos_get_client_info() { return version; }

 int taos_affected_rows(TAOS_RES *res) {
-  if (res == NULL || TD_RES_TMQ(res)) {
+  if (res == NULL || TD_RES_TMQ(res) || TD_RES_TMQ_META(res)) {
    return 0;
  }

@ -448,7 +451,7 @@ int taos_affected_rows(TAOS_RES *res) {
 }

 int taos_result_precision(TAOS_RES *res) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return TSDB_TIME_PRECISION_MILLI;
  }

@ -463,15 +466,15 @@ int taos_result_precision(TAOS_RES *res) {
 }

 int taos_select_db(TAOS *taos, const char *db) {
-  STscObj* pObj = acquireTscObj(*(int64_t*)taos);
+  STscObj *pObj = acquireTscObj(*(int64_t *)taos);
  if (pObj == NULL) {
-    releaseTscObj(*(int64_t*)taos);
+    releaseTscObj(*(int64_t *)taos);
    terrno = TSDB_CODE_TSC_DISCONNECTED;
    return TSDB_CODE_TSC_DISCONNECTED;
  }

  if (db == NULL || strlen(db) == 0) {
-    releaseTscObj(*(int64_t*)taos);
+    releaseTscObj(*(int64_t *)taos);
    terrno = TSDB_CODE_TSC_INVALID_INPUT;
    return terrno;
  }
@ -483,19 +486,19 @@ int taos_select_db(TAOS *taos, const char *db) {
  int32_t   code = taos_errno(pRequest);

  taos_free_result(pRequest);
-  releaseTscObj(*(int64_t*)taos);
+  releaseTscObj(*(int64_t *)taos);
  return code;
 }

 void taos_stop_query(TAOS_RES *res) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ(res) || TD_RES_TMQ_META(res)) {
    return;
  }

  SRequestObj *pRequest = (SRequestObj *)res;
  pRequest->killed = true;
-  
-  int32_t      numOfFields = taos_num_fields(pRequest);
+
+  int32_t numOfFields = taos_num_fields(pRequest);
  // It is not a query, no need to stop.
  if (numOfFields == 0) {
    tscDebug("request %" PRIx64 " no need to be killed since not query", pRequest->requestId);
@ -510,6 +513,9 @@ void taos_stop_query(TAOS_RES *res) {
 }

 bool taos_is_null(TAOS_RES *res, int32_t row, int32_t col) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
+    return true;
+  }
  SReqResultInfo *pResultInfo = tscGetCurResInfo(res);
  if (col >= pResultInfo->numOfCols || col < 0 || row >= pResultInfo->numOfRows || row < 0) {
    return true;
@ -532,7 +538,7 @@ int taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows) {
 }

 int taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return 0;
  }

@ -575,7 +581,7 @@ int taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows) {
 }

 int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return 0;
  }

@ -615,7 +621,7 @@ int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
 }

 int *taos_get_column_data_offset(TAOS_RES *res, int columnIndex) {
-  if (res == NULL) {
+  if (res == NULL || TD_RES_TMQ_META(res)) {
    return 0;
  }

@ -636,7 +642,7 @@ int *taos_get_column_data_offset(TAOS_RES *res, int columnIndex) {
 int taos_validate_sql(TAOS *taos, const char *sql) { return true; }

 void taos_reset_current_db(TAOS *taos) {
-  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
  if (pTscObj == NULL) {
    terrno = TSDB_CODE_TSC_DISCONNECTED;
    return;
@ -644,17 +650,17 @@ void taos_reset_current_db(TAOS *taos) {

  resetConnectDB(pTscObj);

-  releaseTscObj(*(int64_t*)taos);
+  releaseTscObj(*(int64_t *)taos);
 }

 const char *taos_get_server_info(TAOS *taos) {
-  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
  if (pTscObj == NULL) {
    terrno = TSDB_CODE_TSC_DISCONNECTED;
    return NULL;
  }

-  releaseTscObj(*(int64_t*)taos);
+  releaseTscObj(*(int64_t *)taos);

  return pTscObj->ver;
 }
@ -682,7 +688,7 @@ static void destorySqlParseWrapper(SqlParseWrapper *pWrapper) {

 void retrieveMetaCallback(SMetaData *pResultMeta, void *param, int32_t code) {
  tscDebug("enter meta callback, code %s", tstrerror(code));
-  
+
  SqlParseWrapper *pWrapper = (SqlParseWrapper *)param;
  SQuery          *pQuery = pWrapper->pQuery;
  SRequestObj     *pRequest = pWrapper->pRequest;
@ -723,11 +729,11 @@ void retrieveMetaCallback(SMetaData *pResultMeta, void *param, int32_t code) {
 }

 void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param) {
-  STscObj* pTscObj = acquireTscObj(*(int64_t*)taos);
+  STscObj *pTscObj = acquireTscObj(*(int64_t *)taos);
  if (pTscObj == NULL || sql == NULL || NULL == fp) {
    terrno = TSDB_CODE_INVALID_PARA;
    if (pTscObj) {
-      releaseTscObj(*(int64_t*)taos);
+      releaseTscObj(*(int64_t *)taos);
    } else {
      terrno = TSDB_CODE_TSC_DISCONNECTED;
    }
@ -745,7 +751,7 @@ void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param
  }

  SRequestObj *pRequest = NULL;
-  int32_t code = buildRequest(pTscObj, sql, sqlLen, &pRequest);
+  int32_t      code = buildRequest(pTscObj, sql, sqlLen, &pRequest);
  if (code != TSDB_CODE_SUCCESS) {
    terrno = code;
    fp(param, NULL, terrno);
@ -849,8 +855,8 @@ static void fetchCallback(void *pResult, void *param, int32_t code) {

  SReqResultInfo *pResultInfo = &pRequest->body.resInfo;

-  tscDebug("0x%" PRIx64 " enter scheduler fetch cb, code:%d - %s, reqId:0x%" PRIx64,
-             pRequest->self, code, tstrerror(code), pRequest->requestId);
+  tscDebug("0x%" PRIx64 " enter scheduler fetch cb, code:%d - %s, reqId:0x%" PRIx64, pRequest->self, code,
+           tstrerror(code), pRequest->requestId);

  pResultInfo->pData = pResult;
  pResultInfo->numOfRows = 0;
@ -884,9 +890,11 @@ static void fetchCallback(void *pResult, void *param, int32_t code) {

 void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {
  ASSERT(res != NULL && fp != NULL);
+  ASSERT(TD_RES_QUERY(res));

  SRequestObj *pRequest = res;
  pRequest->body.fetchFp = fp;
+  pRequest->body.param = param;

  SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
  if (taos_num_fields(pRequest) == 0) {
@ -909,6 +917,7 @@ void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {

 void taos_fetch_raw_block_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {
  ASSERT(res != NULL && fp != NULL);
+  ASSERT(TD_RES_QUERY(res));
  SRequestObj *pRequest = res;

  pRequest->body.resInfo.convertUcs4 = false;
@ -922,6 +931,7 @@ void taos_fetch_raw_block_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {

 const void *taos_get_raw_block(TAOS_RES *res) {
  ASSERT(res != NULL);
+  ASSERT(TD_RES_QUERY(res));
  SRequestObj *pRequest = res;

  return pRequest->body.resInfo.pData;
@ -948,16 +958,16 @@ int taos_load_table_info(TAOS *taos, const char *tableNameList) {
 }

 TAOS_STMT *taos_stmt_init(TAOS *taos) {
-  STscObj* pObj = acquireTscObj(*(int64_t*)taos);
+  STscObj *pObj = acquireTscObj(*(int64_t *)taos);
  if (NULL == pObj) {
    tscError("invalid parameter for %s", __FUNCTION__);
    terrno = TSDB_CODE_TSC_DISCONNECTED;
    return NULL;
  }

-  TAOS_STMT* pStmt = stmtInit(pObj);
-  
-  releaseTscObj(*(int64_t*)taos);
+  TAOS_STMT *pStmt = stmtInit(pObj);
+
+  releaseTscObj(*(int64_t *)taos);

  return pStmt;
 }
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@ -2389,17 +2389,19 @@ static int32_t isSchemalessDb(STscObj *taos, SRequestObj *request) {
 static void smlInsertCallback(void *param, void *res, int32_t code) {
  SRequestObj *pRequest = (SRequestObj *)res;
  SSmlHandle  *info = (SSmlHandle *)param;
+  int32_t rows = taos_affected_rows(pRequest);

  uDebug("SML:0x%" PRIx64 " result. code:%d, msg:%s", info->id, pRequest->code, pRequest->msgBuf);
  // lock
+  taosThreadSpinLock(&info->params->lock);
+  info->params->request->body.resInfo.numOfRows += rows;
  if (code != TSDB_CODE_SUCCESS) {
-    taosThreadSpinLock(&info->params->lock);
    info->params->request->code = code;
-    taosThreadSpinUnlock(&info->params->lock);
  }
+  taosThreadSpinUnlock(&info->params->lock);
  // unlock

-  printf("SML:0x%" PRIx64 " insert finished, code: %d, total: %d\n", info->id, code, info->affectedRows);
+  uDebug("SML:0x%" PRIx64 " insert finished, code: %d, rows: %d, total: %d", info->id, code, rows, info->affectedRows);
  Params *pParam = info->params;
  bool    isLast = info->isLast;
  info->cost.endTime = taosGetTimestampUs();
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@ -149,7 +149,10 @@ typedef struct {
  int32_t         epoch;
  SMqClientVg*    vgHandle;
  SMqClientTopic* topicHandle;
-  SMqDataBlkRsp   msg;
+  union {
+    SMqDataBlkRsp dataRsp;
+    SMqMetaRsp    metaRsp;
+  };
 } SMqPollRspWrapper;

 typedef struct {
@ -401,8 +404,17 @@ int32_t tmqCommitInner2(tmq_t* tmq, const TAOS_RES* msg, int8_t automatic, int8_
  int32_t code = -1;

  if (msg != NULL) {
-    SMqRspObj* pRspObj = (SMqRspObj*)msg;
-    if (!TD_RES_TMQ(pRspObj)) {
+    char*   topic;
+    int32_t vgId;
+    if (TD_RES_TMQ(msg)) {
+      SMqRspObj* pRspObj = (SMqRspObj*)msg;
+      topic = pRspObj->topic;
+      vgId = pRspObj->vgId;
+    } else if (TD_RES_TMQ_META(msg)) {
+      SMqMetaRspObj* pMetaRspObj = (SMqMetaRspObj*)msg;
+      topic = pMetaRspObj->topic;
+      vgId = pMetaRspObj->vgId;
+    } else {
      return TSDB_CODE_TMQ_INVALID_MSG;
    }

@ -421,10 +433,10 @@ int32_t tmqCommitInner2(tmq_t* tmq, const TAOS_RES* msg, int8_t automatic, int8_

    for (int32_t i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
      SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
-      if (strcmp(pTopic->topicName, pRspObj->topic) == 0) {
+      if (strcmp(pTopic->topicName, topic) == 0) {
        for (int32_t j = 0; j < taosArrayGetSize(pTopic->vgs); j++) {
          SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
-          if (pVg->vgId == pRspObj->vgId) {
+          if (pVg->vgId == vgId) {
            if (pVg->currentOffset < 0 || pVg->committedOffset == pVg->currentOffset) {
              tscDebug("consumer %ld skip commit for topic %s vg %d, current offset is %ld, committed offset is %ld",
                       tmq->consumerId, pTopic->topicName, pVg->vgId, pVg->currentOffset, pVg->committedOffset);
@ -1131,6 +1143,11 @@ int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
    tscWarn("mismatch rsp from vg %d, epoch %d, current epoch %d", vgId, msgEpoch, tmqEpoch);
  }

+  // handle meta rsp
+  int8_t rspType = ((SMqRspHead*)pMsg->pData)->mqMsgType;
+  if (rspType == TMQ_MSG_TYPE__POLL_META_RSP) {
+  }
+
  SMqPollRspWrapper* pRspWrapper = taosAllocateQitem(sizeof(SMqPollRspWrapper), DEF_QITEM);
  if (pRspWrapper == NULL) {
    taosMemoryFree(pMsg->pData);
@ -1138,17 +1155,23 @@ int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
    goto CREATE_MSG_FAIL;
  }

-  pRspWrapper->tmqRspType = TMQ_MSG_TYPE__POLL_RSP;
+  pRspWrapper->tmqRspType = rspType;
  pRspWrapper->vgHandle = pVg;
  pRspWrapper->topicHandle = pTopic;

-  memcpy(&pRspWrapper->msg, pMsg->pData, sizeof(SMqRspHead));
+  memcpy(&pRspWrapper->dataRsp, pMsg->pData, sizeof(SMqRspHead));
+
+  if (rspType == TMQ_MSG_TYPE__POLL_RSP) {
+    tDecodeSMqDataBlkRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pRspWrapper->dataRsp);
+  } else {
+    ASSERT(rspType == TMQ_MSG_TYPE__POLL_META_RSP);
+    tDecodeSMqMetaRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pRspWrapper->metaRsp);
+  }

-  tDecodeSMqDataBlkRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pRspWrapper->msg);
  taosMemoryFree(pMsg->pData);

  tscDebug("consumer %ld recv poll: vg %d, req offset %ld, rsp offset %ld", tmq->consumerId, pVg->vgId,
-           pRspWrapper->msg.reqOffset, pRspWrapper->msg.rspOffset);
+           pRspWrapper->dataRsp.reqOffset, pRspWrapper->dataRsp.rspOffset);

  taosWriteQitem(tmq->mqueue, pRspWrapper);
  tsem_post(&tmq->rspSem);
@ -1516,6 +1539,17 @@ SMqPollReq* tmqBuildConsumeReqImpl(tmq_t* tmq, int64_t timeout, SMqClientTopic*
  return pReq;
 }

+SMqMetaRspObj* tmqBuildMetaRspFromWrapper(SMqPollRspWrapper* pWrapper) {
+  SMqMetaRspObj* pRspObj = taosMemoryCalloc(1, sizeof(SMqMetaRspObj));
+  pRspObj->resType = RES_TYPE__TMQ;
+  tstrncpy(pRspObj->topic, pWrapper->topicHandle->topicName, TSDB_TOPIC_FNAME_LEN);
+  tstrncpy(pRspObj->db, pWrapper->topicHandle->db, TSDB_DB_FNAME_LEN);
+  pRspObj->vgId = pWrapper->vgHandle->vgId;
+
+  memcpy(&pRspObj->metaRsp, &pWrapper->metaRsp, sizeof(SMqMetaRsp));
+  return pRspObj;
+}
+
 SMqRspObj* tmqBuildRspFromWrapper(SMqPollRspWrapper* pWrapper) {
  SMqRspObj* pRspObj = taosMemoryCalloc(1, sizeof(SMqRspObj));
  pRspObj->resType = RES_TYPE__TMQ;
@ -1523,11 +1557,11 @@ SMqRspObj* tmqBuildRspFromWrapper(SMqPollRspWrapper* pWrapper) {
  tstrncpy(pRspObj->db, pWrapper->topicHandle->db, TSDB_DB_FNAME_LEN);
  pRspObj->vgId = pWrapper->vgHandle->vgId;
  pRspObj->resIter = -1;
-  memcpy(&pRspObj->rsp, &pWrapper->msg, sizeof(SMqDataBlkRsp));
+  memcpy(&pRspObj->rsp, &pWrapper->dataRsp, sizeof(SMqDataBlkRsp));

  pRspObj->resInfo.totalRows = 0;
  pRspObj->resInfo.precision = TSDB_TIME_PRECISION_MILLI;
-  if (!pWrapper->msg.withSchema) {
+  if (!pWrapper->dataRsp.withSchema) {
    setResSchemaInfo(&pRspObj->resInfo, pWrapper->topicHandle->schema.pSchema, pWrapper->topicHandle->schema.nCols);
  }

@ -1643,12 +1677,12 @@ SMqRspObj* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
      SMqPollRspWrapper* pollRspWrapper = (SMqPollRspWrapper*)rspWrapper;
      /*atomic_sub_fetch_32(&tmq->readyRequest, 1);*/
      int32_t consumerEpoch = atomic_load_32(&tmq->epoch);
-      if (pollRspWrapper->msg.head.epoch == consumerEpoch) {
+      if (pollRspWrapper->dataRsp.head.epoch == consumerEpoch) {
        SMqClientVg* pVg = pollRspWrapper->vgHandle;
        /*printf("vg %d offset %ld up to %ld\n", pVg->vgId, pVg->currentOffset, rspMsg->msg.rspOffset);*/
-        pVg->currentOffset = pollRspWrapper->msg.rspOffset;
+        pVg->currentOffset = pollRspWrapper->dataRsp.rspOffset;
        atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
-        if (pollRspWrapper->msg.blockNum == 0) {
+        if (pollRspWrapper->dataRsp.blockNum == 0) {
          taosFreeQitem(pollRspWrapper);
          rspWrapper = NULL;
          continue;
@ -1658,8 +1692,25 @@ SMqRspObj* tmqHandleAllRsp(tmq_t* tmq, int64_t timeout, bool pollIfReset) {
        taosFreeQitem(pollRspWrapper);
        return pRsp;
      } else {
-        tscDebug("msg discard since epoch mismatch: msg epoch %d, consumer epoch %d\n", pollRspWrapper->msg.head.epoch,
-                 consumerEpoch);
+        tscDebug("msg discard since epoch mismatch: msg epoch %d, consumer epoch %d\n",
+                 pollRspWrapper->dataRsp.head.epoch, consumerEpoch);
+        taosFreeQitem(pollRspWrapper);
+      }
+    } else if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__POLL_META_RSP) {
+      SMqPollRspWrapper* pollRspWrapper = (SMqPollRspWrapper*)rspWrapper;
+      int32_t            consumerEpoch = atomic_load_32(&tmq->epoch);
+      if (pollRspWrapper->dataRsp.head.epoch == consumerEpoch) {
+        SMqClientVg* pVg = pollRspWrapper->vgHandle;
+        /*printf("vg %d offset %ld up to %ld\n", pVg->vgId, pVg->currentOffset, rspMsg->msg.rspOffset);*/
+        pVg->currentOffset = pollRspWrapper->dataRsp.rspOffset;
+        atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
+        // build rsp
+        SMqRspObj* pRsp = tmqBuildRspFromWrapper(pollRspWrapper);
+        taosFreeQitem(pollRspWrapper);
+        return pRsp;
+      } else {
+        tscDebug("msg discard since epoch mismatch: msg epoch %d, consumer epoch %d\n",
+                 pollRspWrapper->dataRsp.head.epoch, consumerEpoch);
        taosFreeQitem(pollRspWrapper);
      }
    } else {
@ -1747,10 +1798,23 @@ const char* tmq_err2str(int32_t err) {
  }
 }

+tmq_res_t tmq_get_res_type(TAOS_RES* res) {
+  if (TD_RES_TMQ(res)) {
+    return TMQ_RES_DATA;
+  } else if (TD_RES_TMQ_META(res)) {
+    return TMQ_RES_TABLE_META;
+  } else {
+    return TMQ_RES_INVALID;
+  }
+}
+
 const char* tmq_get_topic_name(TAOS_RES* res) {
  if (TD_RES_TMQ(res)) {
    SMqRspObj* pRspObj = (SMqRspObj*)res;
    return strchr(pRspObj->topic, '.') + 1;
+  } else if (TD_RES_TMQ_META(res)) {
+    SMqMetaRspObj* pMetaRspObj = (SMqMetaRspObj*)res;
+    return strchr(pMetaRspObj->topic, '.') + 1;
  } else {
    return NULL;
  }
@ -1760,6 +1824,9 @@ const char* tmq_get_db_name(TAOS_RES* res) {
  if (TD_RES_TMQ(res)) {
    SMqRspObj* pRspObj = (SMqRspObj*)res;
    return strchr(pRspObj->db, '.') + 1;
+  } else if (TD_RES_TMQ_META(res)) {
+    SMqMetaRspObj* pMetaRspObj = (SMqMetaRspObj*)res;
+    return strchr(pMetaRspObj->db, '.') + 1;
  } else {
    return NULL;
  }
@ -1769,6 +1836,9 @@ int32_t tmq_get_vgroup_id(TAOS_RES* res) {
  if (TD_RES_TMQ(res)) {
    SMqRspObj* pRspObj = (SMqRspObj*)res;
    return pRspObj->vgId;
+  } else if (TD_RES_TMQ_META(res)) {
+    SMqMetaRspObj* pMetaRspObj = (SMqMetaRspObj*)res;
+    return pMetaRspObj->vgId;
  } else {
    return -1;
  }
@ -1786,6 +1856,16 @@ const char* tmq_get_table_name(TAOS_RES* res) {
  return NULL;
 }

+int32_t tmq_get_raw_meta(TAOS_RES* res, const void** raw_meta, int32_t* raw_meta_len) {
+  if (TD_RES_TMQ_META(res)) {
+    SMqMetaRspObj* pMetaRspObj = (SMqMetaRspObj*)res;
+    *raw_meta = pMetaRspObj->metaRsp.metaRsp;
+    *raw_meta_len = pMetaRspObj->metaRsp.metaRspLen;
+    return 0;
+  }
+  return -1;
+}
+
 void tmq_commit_async(tmq_t* tmq, const TAOS_RES* msg, tmq_commit_cb* cb, void* param) {
  tmqCommitInner2(tmq, msg, 0, 1, cb, param);
 }
--- a/source/client/test/clientTests.cpp
+++ b/source/client/test/clientTests.cpp
@ -43,6 +43,26 @@ void showDB(TAOS* pConn) {
  }
 }

+void printResult(TAOS_RES* pRes) {
+  TAOS_ROW    pRow = NULL;
+  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
+  int32_t     numOfFields = taos_num_fields(pRes);
+
+  int32_t n = 0;
+  char str[512] = {0};
+  while ((pRow = taos_fetch_row(pRes)) != NULL) {
+    int32_t* length = taos_fetch_lengths(pRes);
+    for(int32_t i = 0; i < numOfFields; ++i) {
+      printf("(%d):%d " , i, length[i]);
+    }
+    printf("\n");
+
+    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
+    printf("%s\n", str);
+    memset(str, 0, sizeof(str));
+  }
+}
+
 void fetchCallback(void* param, void* res, int32_t numOfRow) {
 #if 0
  printf("numOfRow = %d \n", numOfRow);
@ -729,48 +749,31 @@ TEST(testCase, projection_query_tables) {
 //  taos_close(pConn);
 //}

-//TEST(testCase, agg_query_tables) {
-//  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
-//  ASSERT_NE(pConn, nullptr);
-//
-//  TAOS_RES* pRes = taos_query(pConn, "use abc1");
-//  if (taos_errno(pRes) != 0) {
-//    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
-//    taos_free_result(pRes);
-//    ASSERT_TRUE(false);
-//  }
-//  taos_free_result(pRes);
-//
-//  pRes = taos_query(pConn, "show stables");
-//  if (taos_errno(pRes) != 0) {
-//    printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
-//    taos_free_result(pRes);
-//    ASSERT_TRUE(false);
-//  }
-//
-//  TAOS_ROW    pRow = NULL;
-//  TAOS_FIELD* pFields = taos_fetch_fields(pRes);
-//  int32_t     numOfFields = taos_num_fields(pRes);
-//
-//  int32_t n = 0;
-//  char str[512] = {0};
-//  while ((pRow = taos_fetch_row(pRes)) != NULL) {
-//    int32_t* length = taos_fetch_lengths(pRes);
-//    for(int32_t i = 0; i < numOfFields; ++i) {
-//      printf("(%d):%d " , i, length[i]);
-//    }
-//    printf("\n");
-//
-//    int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
-//    printf("%s\n", str);
-//    memset(str, 0, sizeof(str));
-//  }
-//
-//  taos_free_result(pRes);
-//  taos_close(pConn);
-//}
-#endif

+TEST(testCase, agg_query_tables) {
+  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
+  ASSERT_NE(pConn, nullptr);
+
+  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
+    taos_free_result(pRes);
+    ASSERT_TRUE(false);
+  }
+  taos_free_result(pRes);
+
+  pRes = taos_query(pConn, "show table distributed st1");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
+    taos_free_result(pRes);
+    ASSERT_TRUE(false);
+  }
+
+  printResult(pRes);
+  taos_free_result(pRes);
+  taos_close(pConn);
+}
+#endif
 /*
 --- copy the following script in the shell to setup the environment ---

@ -786,7 +789,7 @@ TEST(testCase, async_api_test) {
  TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
  ASSERT_NE(pConn, nullptr);

-  taos_query(pConn, "use table_alltype_hyperloglog");
+  taos_query(pConn, "use abc1");
 #if 0
  TAOS_RES* pRes = taos_query(pConn, "insert into tu(ts) values('2022-02-27 12:12:61')");
  if (taos_errno(pRes) != 0) {
@ -812,7 +815,7 @@ TEST(testCase, async_api_test) {
  }
 #endif

-  taos_query_a(pConn, "select HYPERLOGLOG(q_ts) from stable_1_2 where ts between 1630000001000 and 1630100001000 interval(19d) Fill(NONE);", queryCallback, pConn);
+  taos_query_a(pConn, "select count(*) from tu", queryCallback, pConn);
  getchar();
  taos_close(pConn);
 }
--- a/source/client/test/smlTest.cpp
+++ b/source/client/test/smlTest.cpp
@ -1272,10 +1272,10 @@ TEST(testCase, sml_dup_time_Test) {
  const char *sql[] = {
     //"test_ms,t0=t c0=f 1626006833641",
     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=false,c1=1i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"xcxvwjvf\",c8=L\"ncharColValue\",c9=7u64 1626006833639000000",
-     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=T,c1=2i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"fixrzcuq\",c8=L\"ncharColValue\",c9=7u64 1626006833639000000",
-     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=t,c1=3i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"iupzdqub\",c8=L\"ncharColValue\",c9=7u64 1626006833639000000",
-     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=t,c1=4i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"yvvtzzof\",c8=L\"ncharColValue\",c9=7u64 1626006833639000000",
-     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=t,c1=5i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"vbxpilkj\",c8=L\"ncharColValue\",c9=7u64 1626006833639000000"
+     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=T,c1=2i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"fixrzcuq\",c8=L\"ncharColValue\",c9=7u64 1626006834639000000",
+     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=t,c1=3i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"iupzdqub\",c8=L\"ncharColValue\",c9=7u64 1626006835639000000",
+     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=t,c1=4i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"yvvtzzof\",c8=L\"ncharColValue\",c9=7u64 1626006836639000000",
+     "ubzlsr,id=qmtcvgd,t0=t,t1=127i8,t2=32767i16,t3=2147483647i32,t4=9223372036854775807i64,t5=11.12345f32,t6=22.123456789f64,t7=\"binaryTagValue\",t8=L\"ncharTagValue\" c0=t,c1=5i8,c2=32767i16,c3=2147483647i32,c4=9223372036854775807i64,c5=11.12345f32,c6=22.123456789f64,c7=\"vbxpilkj\",c8=L\"ncharColValue\",c9=7u64 1626006837639000000"
  };
  pRes = taos_query(taos, "use dup_time");
  taos_free_result(pRes);
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@ -263,6 +263,7 @@ int32_t colDataMergeCol(SColumnInfoData* pColumnInfoData, uint32_t numOfRow1, in
    pColumnInfoData->varmeta.length = len + oldLen;
  } else {
    if (finalNumOfRows > *capacity) {
+      ASSERT(finalNumOfRows*pColumnInfoData->info.bytes);
      char* tmp = taosMemoryRealloc(pColumnInfoData->pData, finalNumOfRows * pColumnInfoData->info.bytes);
      if (tmp == NULL) {
        return TSDB_CODE_VND_OUT_OF_MEMORY;
@ -1126,6 +1127,7 @@ void blockDataCleanup(SSDataBlock* pDataBlock) {
 }

 int32_t colInfoDataEnsureCapacity(SColumnInfoData* pColumn, size_t existRows, uint32_t numOfRows) {
+  ASSERT(numOfRows);
  if (0 == numOfRows || numOfRows <= existRows) {
    return TSDB_CODE_SUCCESS;
  }
@ -1178,6 +1180,8 @@ void colInfoDataCleanup(SColumnInfoData* pColumn, uint32_t numOfRows) {

 int32_t blockDataEnsureCapacity(SSDataBlock* pDataBlock, uint32_t numOfRows) {
  int32_t code = 0;
+  ASSERT(numOfRows > 0);
+
  if (numOfRows == 0) {
    return TSDB_CODE_SUCCESS;
  }
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@ -161,7 +161,7 @@ int32_t  tsDiskCfgNum = 0;
 SDiskCfg tsDiskCfg[TFS_MAX_DISKS] = {0};

 // stream scheduler
-bool tsStreamSchedV = true;
+bool tsSchedStreamToSnode = true;

 /*
 * minimum scale for whole system, millisecond by default
@ -185,7 +185,7 @@ char     tsCompressor[32] = "ZSTD_COMPRESSOR";  // ZSTD_COMPRESSOR or GZIP_COMPR
 bool tsStartUdfd = true;

 // internal
-int32_t tsTransPullupInterval = 6;
+int32_t tsTransPullupInterval = 2;
 int32_t tsMqRebalanceInterval = 2;

 void taosAddDataDir(int32_t index, char *v1, int32_t level, int32_t primary) {
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@ -127,7 +127,7 @@ int32_t tEncodeSEpSet(SEncoder *pEncoder, const SEpSet *pEp) {
  if (tEncodeI8(pEncoder, pEp->numOfEps) < 0) return -1;
  for (int32_t i = 0; i < TSDB_MAX_REPLICA; i++) {
    if (tEncodeU16(pEncoder, pEp->eps[i].port) < 0) return -1;
-    if (tEncodeCStr(pEncoder, pEp->eps[i].fqdn) < 0) return -1;
+    if (tEncodeCStrWithLen(pEncoder, pEp->eps[i].fqdn, TSDB_FQDN_LEN) < 0) return -1;
  }
  return 0;
 }
@ -532,6 +532,14 @@ int32_t tSerializeSMCreateStbReq(void *buf, int32_t bufLen, SMCreateStbReq *pReq
  if (pReq->ast2Len > 0) {
    if (tEncodeBinary(&encoder, pReq->pAst2, pReq->ast2Len) < 0) return -1;
  }
+
+  int32_t numOfFuncs = taosArrayGetSize(pReq->pFuncs);
+  if (tEncodeI32(&encoder, numOfFuncs) < 0) return -1;
+  for (int32_t i = 0; i < numOfFuncs; ++i) {
+    const char *pFunc = taosArrayGet(pReq->pFuncs, i);
+    if (tEncodeCStr(&encoder, pFunc) < 0) return -1;
+  }
+  
  tEndEncode(&encoder);

  int32_t tlen = encoder.pos;
@ -606,6 +614,21 @@ int32_t tDeserializeSMCreateStbReq(void *buf, int32_t bufLen, SMCreateStbReq *pR
    if (tDecodeCStrTo(&decoder, pReq->pAst2) < 0) return -1;
  }

+  int32_t numOfFuncs = 0;
+  if (tDecodeI32(&decoder, &numOfFuncs) < 0) return -1;
+  if (numOfFuncs > 0) {
+    pReq->pFuncs = taosArrayInit(numOfFuncs, TSDB_FUNC_NAME_LEN);
+    if (NULL == pReq->pFuncs) return -1;
+  }
+  for (int32_t i = 0; i < numOfFuncs; ++i) {
+    char* pFunc = NULL;
+    if (tDecodeCStrAlloc(&decoder, &pFunc) < 0) return -1;
+    if (taosArrayPush(pReq->pFuncs, pFunc) == NULL) {
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
+      return -1;
+    }
+  }
+
  tEndDecode(&decoder);

  tDecoderClear(&decoder);
@ -618,8 +641,7 @@ void tFreeSMCreateStbReq(SMCreateStbReq *pReq) {
  taosMemoryFreeClear(pReq->comment);
  taosMemoryFreeClear(pReq->pAst1);
  taosMemoryFreeClear(pReq->pAst2);
-  pReq->pColumns = NULL;
-  pReq->pTags = NULL;
+  taosArrayDestroy(pReq->pFuncs);
 }

 int32_t tSerializeSMDropStbReq(void *buf, int32_t bufLen, SMDropStbReq *pReq) {
@ -1757,6 +1779,165 @@ void tFreeSRetrieveFuncRsp(SRetrieveFuncRsp *pRsp) {
  taosArrayDestroy(pRsp->pFuncInfos);
 }

+int32_t tSerializeSTableCfgReq(void *buf, int32_t bufLen, STableCfgReq *pReq) {
+  int32_t headLen = sizeof(SMsgHead);
+  if (buf != NULL) {
+    buf = (char *)buf + headLen;
+    bufLen -= headLen;
+  }
+
+  SEncoder encoder = {0};
+  tEncoderInit(&encoder, buf, bufLen);
+
+  if (tStartEncode(&encoder) < 0) return -1;
+  if (tEncodeCStr(&encoder, pReq->dbFName) < 0) return -1;
+  if (tEncodeCStr(&encoder, pReq->tbName) < 0) return -1;
+  tEndEncode(&encoder);
+
+  int32_t tlen = encoder.pos;
+  tEncoderClear(&encoder);
+
+  if (buf != NULL) {
+    SMsgHead *pHead = (SMsgHead *)((char *)buf - headLen);
+    pHead->vgId = htonl(pReq->header.vgId);
+    pHead->contLen = htonl(tlen + headLen);
+  }
+
+  return tlen + headLen;
+}
+
+int32_t tDeserializeSTableCfgReq(void *buf, int32_t bufLen, STableCfgReq *pReq) {
+  int32_t headLen = sizeof(SMsgHead);
+
+  SMsgHead *pHead = buf;
+  pHead->vgId = pReq->header.vgId;
+  pHead->contLen = pReq->header.contLen;
+
+  SDecoder decoder = {0};
+  tDecoderInit(&decoder, (char *)buf + headLen, bufLen - headLen);
+
+  if (tStartDecode(&decoder) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pReq->dbFName) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pReq->tbName) < 0) return -1;
+
+  tEndDecode(&decoder);
+  tDecoderClear(&decoder);
+  return 0;
+}
+
+int32_t tSerializeSTableCfgRsp(void *buf, int32_t bufLen, STableCfgRsp *pRsp) {
+  SEncoder encoder = {0};
+  tEncoderInit(&encoder, buf, bufLen);
+
+  if (tStartEncode(&encoder) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->tbName) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->stbName) < 0) return -1;
+  if (tEncodeCStr(&encoder, pRsp->dbFName) < 0) return -1;
+  if (tEncodeI32(&encoder, pRsp->numOfTags) < 0) return -1;
+  if (tEncodeI32(&encoder, pRsp->numOfColumns) < 0) return -1;
+  if (tEncodeI8(&encoder, pRsp->tableType) < 0) return -1;
+  if (tEncodeI64(&encoder, pRsp->delay1) < 0) return -1;
+  if (tEncodeI64(&encoder, pRsp->delay2) < 0) return -1;
+  if (tEncodeI64(&encoder, pRsp->watermark1) < 0) return -1;
+  if (tEncodeI64(&encoder, pRsp->watermark2) < 0) return -1;
+  if (tEncodeI32(&encoder, pRsp->ttl) < 0) return -1;
+  
+  int32_t numOfFuncs = taosArrayGetSize(pRsp->pFuncs);
+  if (tEncodeI32(&encoder, numOfFuncs) < 0) return -1;
+  for (int32_t i = 0; i < numOfFuncs; ++i) {
+    const char *pFunc = taosArrayGet(pRsp->pFuncs, i);
+    if (tEncodeCStr(&encoder, pFunc) < 0) return -1;
+  }
+
+  if (tEncodeI32(&encoder, pRsp->commentLen) < 0) return -1;  
+  if (pRsp->commentLen > 0) {
+    if (tEncodeCStr(&encoder, pRsp->pComment) < 0) return -1;
+  }
+  
+  for (int32_t i = 0; i < pRsp->numOfColumns + pRsp->numOfTags; ++i) {
+    SSchema *pSchema = &pRsp->pSchemas[i];
+    if (tEncodeSSchema(&encoder, pSchema) < 0) return -1;
+  }
+
+  if (tEncodeI32(&encoder, pRsp->tagsLen) < 0) return -1;  
+  if (tEncodeBinary(&encoder, pRsp->pTags, pRsp->tagsLen) < 0) return -1;  
+  
+  tEndEncode(&encoder);
+
+  int32_t tlen = encoder.pos;
+  tEncoderClear(&encoder);
+  return tlen;
+}
+
+int32_t tDeserializeSTableCfgRsp(void *buf, int32_t bufLen, STableCfgRsp *pRsp) {
+  SDecoder decoder = {0};
+  tDecoderInit(&decoder, buf, bufLen);
+
+  if (tStartDecode(&decoder) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->tbName) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->stbName) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pRsp->dbFName) < 0) return -1;
+  if (tDecodeI32(&decoder, &pRsp->numOfTags) < 0) return -1;
+  if (tDecodeI32(&decoder, &pRsp->numOfColumns) < 0) return -1;
+  if (tDecodeI8(&decoder, &pRsp->tableType) < 0) return -1;
+  if (tDecodeI64(&decoder, &pRsp->delay1) < 0) return -1;
+  if (tDecodeI64(&decoder, &pRsp->delay2) < 0) return -1;
+  if (tDecodeI64(&decoder, &pRsp->watermark1) < 0) return -1;
+  if (tDecodeI64(&decoder, &pRsp->watermark2) < 0) return -1;
+  if (tDecodeI32(&decoder, &pRsp->ttl) < 0) return -1;
+
+  int32_t numOfFuncs = 0;
+  if (tDecodeI32(&decoder, &numOfFuncs) < 0) return -1;
+  if (numOfFuncs > 0) {
+    pRsp->pFuncs = taosArrayInit(numOfFuncs, TSDB_FUNC_NAME_LEN);
+    if (NULL == pRsp->pFuncs) return -1;
+  }
+  for (int32_t i = 0; i < numOfFuncs; ++i) {
+    char pFunc[TSDB_FUNC_NAME_LEN];
+    if (tDecodeCStrTo(&decoder, pFunc) < 0) return -1;
+    if (taosArrayPush(pRsp->pFuncs, pFunc) == NULL) {
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
+      return -1;
+    }
+  }
+
+  if (tDecodeI32(&decoder, &pRsp->commentLen) < 0) return -1;
+  if (pRsp->commentLen > 0) {
+    if (tDecodeCStrAlloc(&decoder, &pRsp->pComment) < 0) return -1;
+  } else {
+    pRsp->pComment = NULL;
+  }
+
+  int32_t totalCols = pRsp->numOfTags + pRsp->numOfColumns;
+  pRsp->pSchemas = taosMemoryMalloc(sizeof(SSchema) * totalCols);
+  if (pRsp->pSchemas == NULL) return -1;
+
+  for (int32_t i = 0; i < totalCols; ++i) {
+    SSchema *pSchema = &pRsp->pSchemas[i];
+    if (tDecodeSSchema(&decoder, pSchema) < 0) return -1;
+  }
+
+  if (tDecodeI32(&decoder, &pRsp->tagsLen) < 0) return -1;
+  if (tDecodeBinaryAlloc(&decoder, (void**)&pRsp->pTags, NULL) < 0) return -1;
+
+  tEndDecode(&decoder);
+
+  tDecoderClear(&decoder);
+  return 0;
+}
+
+void tFreeSTableCfgRsp(STableCfgRsp *pRsp) {
+  if (NULL == pRsp) {
+    return;
+  }
+
+  taosMemoryFreeClear(pRsp->pComment);
+  taosMemoryFreeClear(pRsp->pSchemas);
+  taosMemoryFreeClear(pRsp->pTags);
+  
+  taosArrayDestroy(pRsp->pFuncs);
+}
+
 int32_t tSerializeSCreateDbReq(void *buf, int32_t bufLen, SCreateDbReq *pReq) {
  SEncoder encoder = {0};
  tEncoderInit(&encoder, buf, bufLen);
@ -2956,6 +3137,7 @@ int32_t tSerializeSCMCreateTopicReq(void *buf, int32_t bufLen, const SCMCreateTo
  if (tEncodeCStr(&encoder, pReq->name) < 0) return -1;
  if (tEncodeI8(&encoder, pReq->igExists) < 0) return -1;
  if (tEncodeI8(&encoder, pReq->subType) < 0) return -1;
+  if (tEncodeI8(&encoder, pReq->withMeta) < 0) return -1;
  if (tEncodeCStr(&encoder, pReq->subDbName) < 0) return -1;
  if (TOPIC_SUB_TYPE__DB == pReq->subType) {
  } else if (TOPIC_SUB_TYPE__TABLE == pReq->subType) {
@ -2985,6 +3167,7 @@ int32_t tDeserializeSCMCreateTopicReq(void *buf, int32_t bufLen, SCMCreateTopicR
  if (tDecodeCStrTo(&decoder, pReq->name) < 0) return -1;
  if (tDecodeI8(&decoder, &pReq->igExists) < 0) return -1;
  if (tDecodeI8(&decoder, &pReq->subType) < 0) return -1;
+  if (tDecodeI8(&decoder, &pReq->withMeta) < 0) return -1;
  if (tDecodeCStrTo(&decoder, pReq->subDbName) < 0) return -1;
  if (TOPIC_SUB_TYPE__DB == pReq->subType) {
  } else if (TOPIC_SUB_TYPE__TABLE == pReq->subType) {
@ -3052,7 +3235,7 @@ int32_t tSerializeSConnectReq(void *buf, int32_t bufLen, SConnectReq *pReq) {
  if (tEncodeCStr(&encoder, pReq->app) < 0) return -1;
  if (tEncodeCStr(&encoder, pReq->db) < 0) return -1;
  if (tEncodeCStr(&encoder, pReq->user) < 0) return -1;
-  if (tEncodeCStr(&encoder, pReq->passwd) < 0) return -1;
+  if (tEncodeCStrWithLen(&encoder, pReq->passwd, TSDB_PASSWORD_LEN) < 0) return -1;
  if (tEncodeI64(&encoder, pReq->startTime) < 0) return -1;
  tEndEncode(&encoder);

@ -4267,45 +4450,69 @@ int32_t tDeserializeSCMCreateStreamReq(void *buf, int32_t bufLen, SCMCreateStrea
  return 0;
 }

+int32_t tSerializeSMDropStreamReq(void *buf, int32_t bufLen, const SMDropStreamReq *pReq) {
+  SEncoder encoder = {0};
+  tEncoderInit(&encoder, buf, bufLen);
+
+  if (tStartEncode(&encoder) < 0) return -1;
+  if (tEncodeCStr(&encoder, pReq->name) < 0) return -1;
+  if (tEncodeI8(&encoder, pReq->igNotExists) < 0) return -1;
+
+  tEndEncode(&encoder);
+
+  int32_t tlen = encoder.pos;
+  tEncoderClear(&encoder);
+  return tlen;
+}
+
+int32_t tDeserializeSMDropStreamReq(void *buf, int32_t bufLen, SMDropStreamReq *pReq) {
+  SDecoder decoder = {0};
+  tDecoderInit(&decoder, buf, bufLen);
+
+  if (tStartDecode(&decoder) < 0) return -1;
+  if (tDecodeCStrTo(&decoder, pReq->name) < 0) return -1;
+  if (tDecodeI8(&decoder, &pReq->igNotExists) < 0) return -1;
+
+  tEndDecode(&decoder);
+
+  tDecoderClear(&decoder);
+  return 0;
+}
+
 void tFreeSCMCreateStreamReq(SCMCreateStreamReq *pReq) {
  taosMemoryFreeClear(pReq->sql);
  taosMemoryFreeClear(pReq->ast);
 }

 int32_t tEncodeSRSmaParam(SEncoder *pCoder, const SRSmaParam *pRSmaParam) {
-  if (tEncodeFloat(pCoder, pRSmaParam->xFilesFactor) < 0) return -1;
-  if (tEncodeI32v(pCoder, pRSmaParam->delay) < 0) return -1;
-  if (tEncodeI32v(pCoder, pRSmaParam->qmsg1Len) < 0) return -1;
-  if (tEncodeI32v(pCoder, pRSmaParam->qmsg2Len) < 0) return -1;
-  if (pRSmaParam->qmsg1Len > 0) {
-    if (tEncodeBinary(pCoder, pRSmaParam->qmsg1, (uint64_t)pRSmaParam->qmsg1Len) < 0)  // qmsg1Len contains len of '\0'
-      return -1;
-  }
-  if (pRSmaParam->qmsg2Len > 0) {
-    if (tEncodeBinary(pCoder, pRSmaParam->qmsg2, (uint64_t)pRSmaParam->qmsg2Len) < 0)  // qmsg2Len contains len of '\0'
-      return -1;
+  for (int32_t i = 0; i < 2; ++i) {
+    if (tEncodeI64v(pCoder, pRSmaParam->maxdelay[i]) < 0) return -1;
+    if (tEncodeI64v(pCoder, pRSmaParam->watermark[i]) < 0) return -1;
+    if (tEncodeI32v(pCoder, pRSmaParam->qmsgLen[i]) < 0) return -1;
+    if (pRSmaParam->qmsgLen[i] > 0) {
+      if (tEncodeBinary(pCoder, pRSmaParam->qmsg[i], (uint64_t)pRSmaParam->qmsgLen[i]) <
+          0)  // qmsgLen contains len of '\0'
+        return -1;
+    }
  }

  return 0;
 }

 int32_t tDecodeSRSmaParam(SDecoder *pCoder, SRSmaParam *pRSmaParam) {
-  if (tDecodeFloat(pCoder, &pRSmaParam->xFilesFactor) < 0) return -1;
-  if (tDecodeI32v(pCoder, &pRSmaParam->delay) < 0) return -1;
-  if (tDecodeI32v(pCoder, &pRSmaParam->qmsg1Len) < 0) return -1;
-  if (tDecodeI32v(pCoder, &pRSmaParam->qmsg2Len) < 0) return -1;
-  if (pRSmaParam->qmsg1Len > 0) {
-    uint64_t len;
-    if (tDecodeBinaryAlloc(pCoder, (void **)&pRSmaParam->qmsg1, &len) < 0) return -1;  // qmsg1Len contains len of '\0'
-  } else {
-    pRSmaParam->qmsg1 = NULL;
-  }
-  if (pRSmaParam->qmsg2Len > 0) {
-    uint64_t len;
-    if (tDecodeBinaryAlloc(pCoder, (void **)&pRSmaParam->qmsg2, &len) < 0) return -1;  // qmsg2Len contains len of '\0'
-  } else {
-    pRSmaParam->qmsg2 = NULL;
+  for (int32_t i = 0; i < 2; ++i) {
+    if (tDecodeI64v(pCoder, &pRSmaParam->maxdelay[i]) < 0) return -1;
+    if (tDecodeI64v(pCoder, &pRSmaParam->watermark[i]) < 0) return -1;
+    if (tDecodeI32v(pCoder, &pRSmaParam->qmsgLen[i]) < 0) return -1;
+    if (pRSmaParam->qmsgLen[i] > 0) {
+      uint64_t len;
+      if (tDecodeBinaryAlloc(pCoder, (void **)&pRSmaParam->qmsg[i], &len) < 0)
+        return -1;  // qmsgLen contains len of '\0'
+    } else {
+      pRSmaParam->qmsg[i] = NULL;
+    }
  }
+
  return 0;
 }

--- a/source/common/src/tname.c
+++ b/source/common/src/tname.c
@ -240,6 +240,15 @@ bool tNameDBNameEqual(SName* left, SName* right) {
  return (0 == strcmp(left->dbname, right->dbname));
 }

+bool tNameTbNameEqual(SName* left, SName* right) {
+  bool equal = tNameDBNameEqual(left, right);
+  if (equal) {
+    return (0 == strcmp(left->tname, right->tname));
+  }
+
+  return equal;
+}
+
 int32_t tNameFromString(SName* dst, const char* str, uint32_t type) {
  assert(dst != NULL && str != NULL && strlen(str) > 0);

@ -312,8 +321,10 @@ void buildChildTableName(RandTableName* rName) {
  taosStringBuilderAppendStringLen(&sb, rName->sTableName, rName->sTableNameLen);
  taosArraySort(rName->tags, compareKv);
  for (int j = 0; j < taosArrayGetSize(rName->tags); ++j) {
+    taosStringBuilderAppendChar(&sb, ',');
    SSmlKv* tagKv = taosArrayGetP(rName->tags, j);
    taosStringBuilderAppendStringLen(&sb, tagKv->key, tagKv->keyLen);
+    taosStringBuilderAppendChar(&sb, '=');
    if (IS_VAR_DATA_TYPE(tagKv->type)) {
      taosStringBuilderAppendStringLen(&sb, tagKv->value, tagKv->length);
    } else {
@ -326,9 +337,14 @@ void buildChildTableName(RandTableName* rName) {
  tMD5Init(&context);
  tMD5Update(&context, (uint8_t*)keyJoined, (uint32_t)len);
  tMD5Final(&context);
-  uint64_t digest1 = *(uint64_t*)(context.digest);
-  uint64_t digest2 = *(uint64_t*)(context.digest + 8);
-  snprintf(rName->childTableName, TSDB_TABLE_NAME_LEN, "t_%016" PRIx64 "%016" PRIx64, digest1, digest2);
+
+  char temp[8] = {0};
+  rName->childTableName[0] = 't';
+  rName->childTableName[1] = '_';
+  for(int i = 0; i < 16; i++){
+    sprintf(temp, "%02x", context.digest[i]);
+    strcat(rName->childTableName, temp);
+  }
  taosStringBuilderDestroy(&sb);
-  rName->uid = digest1;
+  rName->uid = *(uint64_t*)(context.digest);
 }
--- a/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmHandle.c
@ -73,6 +73,7 @@ int32_t mmProcessGetLoadsReq(SMnodeMgmt *pMgmt, SRpcMsg *pMsg) {
 }

 int32_t mmProcessCreateReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {
+  const STraceId  *trace = &pMsg->info.traceId;
  SDCreateMnodeReq createReq = {0};
  if (tDeserializeSDCreateMnodeReq(pMsg->pCont, pMsg->contLen, &createReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
@ -81,7 +82,7 @@ int32_t mmProcessCreateReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {

  if (createReq.replica != 1) {
    terrno = TSDB_CODE_INVALID_OPTION;
-    dError("failed to create mnode since %s", terrstr());
+    dGError("failed to create mnode since %s", terrstr());
    return -1;
  }

@ -91,7 +92,7 @@ int32_t mmProcessCreateReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {
  mgmt.path = pInput->path;
  mgmt.name = pInput->name;
  if (mmWriteFile(&mgmt, &createReq.replicas[0], deployed) != 0) {
-    dError("failed to write mnode file since %s", terrstr());
+    dGError("failed to write mnode file since %s", terrstr());
    return -1;
  }

@ -99,7 +100,8 @@ int32_t mmProcessCreateReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {
 }

 int32_t mmProcessDropReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {
-  SDDropMnodeReq dropReq = {0};
+  const STraceId *trace = &pMsg->info.traceId;
+  SDDropMnodeReq  dropReq = {0};
  if (tDeserializeSCreateDropMQSBNodeReq(pMsg->pCont, pMsg->contLen, &dropReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    return -1;
@ -107,7 +109,7 @@ int32_t mmProcessDropReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {

  if (pInput->pData->dnodeId != 0 && dropReq.dnodeId != pInput->pData->dnodeId) {
    terrno = TSDB_CODE_INVALID_OPTION;
-    dError("failed to drop mnode since %s", terrstr());
+    dGError("failed to drop mnode since %s", terrstr());
    return -1;
  }

@ -117,7 +119,7 @@ int32_t mmProcessDropReq(const SMgmtInputOpt *pInput, SRpcMsg *pMsg) {
  mgmt.path = pInput->path;
  mgmt.name = pInput->name;
  if (mmWriteFile(&mgmt, NULL, deployed) != 0) {
-    dError("failed to write mnode file since %s", terrstr());
+    dGError("failed to write mnode file since %s", terrstr());
    return -1;
  }

@ -180,9 +182,11 @@ SArray *mmGetMsgHandles() {
  if (dmSetMgmtHandle(pArray, TDMT_MND_ALTER_STB, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_DROP_STB, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_TABLE_META, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_MND_TABLE_CFG, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_CREATE_SMA, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_DROP_SMA, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_CREATE_STREAM, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_MND_DROP_STREAM, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_GET_INDEX, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_GET_TABLE_INDEX, mmPutMsgToReadQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_MND_CREATE_TOPIC, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
@ -215,7 +219,7 @@ SArray *mmGetMsgHandles() {
  if (dmSetMgmtHandle(pArray, TDMT_VND_MQ_VG_DELETE_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_DROP_TASK, mmPutMsgToFetchQueue, 1) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DEPLOY_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_VND_STREAM_TASK_DROP_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DROP_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_CONFIG_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_REPLICA_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_CONFIRM_RSP, mmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
--- a/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
+++ b/source/dnode/mgmt/mgmt_mnode/src/mmWorker.c
@ -18,7 +18,6 @@

 static inline int32_t mmAcquire(SMnodeMgmt *pMgmt) {
  int32_t code = 0;
-
  taosThreadRwlockRdlock(&pMgmt->lock);
  if (pMgmt->stopped) {
    code = -1;
@ -48,7 +47,8 @@ static inline void mmSendRsp(SRpcMsg *pMsg, int32_t code) {
 static void mmProcessRpcMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
  SMnodeMgmt *pMgmt = pInfo->ahandle;
  int32_t     code = -1;
-  STraceId *  trace = &pMsg->info.traceId;
+
+  const STraceId *trace = &pMsg->info.traceId;
  dGTrace("msg:%p, get from mnode queue", pMsg);

  switch (pMsg->msgType) {
@ -68,7 +68,11 @@ static void mmProcessRpcMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
    mmSendRsp(pMsg, code);
  }

-  dTrace("msg:%p, is freed, code:0x%x", pMsg, code);
+  if (code == TSDB_CODE_RPC_REDIRECT) {
+    mndPostProcessQueryMsg(pMsg);
+  }
+
+  dGTrace("msg:%p, is freed, code:0x%x", pMsg, code);
  rpcFreeCont(pMsg->pCont);
  taosFreeQitem(pMsg);
 }
@ -76,7 +80,9 @@ static void mmProcessRpcMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
 static void mmProcessSyncMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {
  SMnodeMgmt *pMgmt = pInfo->ahandle;
  pMsg->info.node = pMgmt->pMnode;
-  dTrace("msg:%p, get from mnode-sync queue", pMsg);
+
+  const STraceId *trace = &pMsg->info.traceId;
+  dGTrace("msg:%p, get from mnode-sync queue", pMsg);

  SMsgHead *pHead = pMsg->pCont;
  pHead->contLen = ntohl(pHead->contLen);
@ -84,20 +90,22 @@ static void mmProcessSyncMsg(SQueueInfo *pInfo, SRpcMsg *pMsg) {

  int32_t code = mndProcessSyncMsg(pMsg);

-  dTrace("msg:%p, is freed, code:0x%x", pMsg, code);
+  dGTrace("msg:%p, is freed, code:0x%x", pMsg, code);
  rpcFreeCont(pMsg->pCont);
  taosFreeQitem(pMsg);
 }

 static inline int32_t mmPutMsgToWorker(SMnodeMgmt *pMgmt, SSingleWorker *pWorker, SRpcMsg *pMsg) {
+  const STraceId *trace = &pMsg->info.traceId;
+
  if (mmAcquire(pMgmt) == 0) {
-    dTrace("msg:%p, put into %s queue, type:%s", pMsg, pWorker->name, TMSG_INFO(pMsg->msgType));
+    dGTrace("msg:%p, put into %s queue, type:%s", pMsg, pWorker->name, TMSG_INFO(pMsg->msgType));
    taosWriteQitem(pWorker->queue, pMsg);
    mmRelease(pMgmt);
    return 0;
  } else {
-    dTrace("msg:%p, failed to put into %s queue since %s, type:%s", pMsg, pWorker->name, terrstr(),
-           TMSG_INFO(pMsg->msgType));
+    dGTrace("msg:%p, failed to put into %s queue since %s, type:%s", pMsg, pWorker->name, terrstr(),
+            TMSG_INFO(pMsg->msgType));
    return -1;
  }
 }
@ -116,20 +124,18 @@ int32_t mmPutMsgToReadQueue(SMnodeMgmt *pMgmt, SRpcMsg *pMsg) {

 int32_t mmPutMsgToQueryQueue(SMnodeMgmt *pMgmt, SRpcMsg *pMsg) {
  pMsg->info.node = pMgmt->pMnode;
-  if (mndPreProcessMsg(pMsg) != 0) {
-    dError("msg:%p, failed to pre-process in mnode since %s, type:%s", pMsg, terrstr(), TMSG_INFO(pMsg->msgType));
+  if (mndPreProcessQueryMsg(pMsg) != 0) {
+    const STraceId *trace = &pMsg->info.traceId;
+    dGError("msg:%p, failed to pre-process in mnode since %s, type:%s", pMsg, terrstr(), TMSG_INFO(pMsg->msgType));
    return -1;
  }
  return mmPutMsgToWorker(pMgmt, &pMgmt->queryWorker, pMsg);
 }

 int32_t mmPutMsgToFetchQueue(SMnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  pMsg->info.node = pMgmt->pMnode;
-
  return mmPutMsgToWorker(pMgmt, &pMgmt->fetchWorker, pMsg);
 }

-
 int32_t mmPutMsgToMonitorQueue(SMnodeMgmt *pMgmt, SRpcMsg *pMsg) {
  return mmPutMsgToWorker(pMgmt, &pMgmt->monitorWorker, pMsg);
 }
--- a/source/dnode/mgmt/mgmt_snode/src/smHandle.c
+++ b/source/dnode/mgmt/mgmt_snode/src/smHandle.c
@ -95,12 +95,12 @@ SArray *smGetMsgHandles() {
  if (dmSetMgmtHandle(pArray, TDMT_MON_SM_INFO, smPutNodeMsgToMonitorQueue, 0) == NULL) goto _OVER;

  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DEPLOY, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_VND_STREAM_TASK_DROP, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RUN, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH_RSP, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER_RSP, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DROP, smPutNodeMsgToMgmtQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RUN, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH_RSP, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER_RSP, smPutNodeMsgToSharedQueue, 1) == NULL) goto _OVER;

  code = 0;
 _OVER:
--- a/source/dnode/mgmt/mgmt_snode/src/smWorker.c
+++ b/source/dnode/mgmt/mgmt_snode/src/smWorker.c
@ -58,6 +58,7 @@ static void smProcessUniqueQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t num
    if (sndProcessUMsg(pMgmt->pSnode, pMsg) < 0) {
      ASSERT(0);
    }
+    smSendRsp(pMsg, 0);

    dTrace("msg:%p, is freed", pMsg);
    rpcFreeCont(pMsg->pCont);
@ -70,6 +71,7 @@ static void smProcessSharedQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {

  dTrace("msg:%p, get from snode-shared queue", pMsg);
  if (sndProcessSMsg(pMgmt->pSnode, pMsg) < 0) {
+    smSendRsp(pMsg, terrno);
    ASSERT(0);
  }

--- a/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
+++ b/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
@ -35,7 +35,6 @@ typedef struct SVnodeMgmt {
  SWWorkerPool   syncPool;
  SWWorkerPool   writePool;
  SWWorkerPool   applyPool;
-  SWWorkerPool   mergePool;
  SSingleWorker  mgmtWorker;
  SSingleWorker  monitorWorker;
  SHashObj      *hash;
@ -63,7 +62,6 @@ typedef struct {
  STaosQueue *pApplyQ;
  STaosQueue *pQueryQ;
  STaosQueue *pFetchQ;
-  STaosQueue *pMergeQ;
 } SVnodeObj;

 typedef struct {
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@ -330,6 +330,7 @@ SArray *vmGetMsgHandles() {
  if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_TABLE, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_UPDATE_TAG_VAL, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_TABLE_META, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_VND_TABLE_CFG, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_TABLES_META, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_CANCEL_TASK, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_VND_DROP_TASK, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
@ -351,7 +352,7 @@ SArray *vmGetMsgHandles() {
  if (dmSetMgmtHandle(pArray, TDMT_VND_QUERY_HEARTBEAT, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;

  if (dmSetMgmtHandle(pArray, TDMT_VND_STREAM_TRIGGER, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
-  if (dmSetMgmtHandle(pArray, TDMT_VND_STREAM_TASK_DROP, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DROP, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DEPLOY, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RUN, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
--- a/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
@ -86,7 +86,6 @@ void vmCloseVnode(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
  while (!taosQueueEmpty(pVnode->pApplyQ)) taosMsleep(10);
  while (!taosQueueEmpty(pVnode->pQueryQ)) taosMsleep(10);
  while (!taosQueueEmpty(pVnode->pFetchQ)) taosMsleep(10);
-  while (!taosQueueEmpty(pVnode->pMergeQ)) taosMsleep(10);

  vmFreeQueue(pMgmt, pVnode);
  vnodeClose(pVnode->pImpl);
--- a/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
@ -28,10 +28,10 @@ static inline void vmSendRsp(SRpcMsg *pMsg, int32_t code) {
 }

 static void vmProcessMgmtQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
-  SVnodeMgmt *pMgmt = pInfo->ahandle;
-  int32_t     code = -1;
+  SVnodeMgmt     *pMgmt = pInfo->ahandle;
+  int32_t         code = -1;
+  const STraceId *trace = &pMsg->info.traceId;

-  STraceId *trace = &pMsg->info.traceId;
  dGTrace("msg:%p, get from vnode-mgmt queue", pMsg);
  switch (pMsg->msgType) {
    case TDMT_MON_VM_INFO:
@ -48,70 +48,73 @@ static void vmProcessMgmtQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
      break;
    default:
      terrno = TSDB_CODE_MSG_NOT_PROCESSED;
-      dError("msg:%p, not processed in vnode-mgmt queue", pMsg);
+      dGError("msg:%p, not processed in vnode-mgmt queue", pMsg);
  }

  if (IsReq(pMsg)) {
    if (code != 0) {
      if (terrno != 0) code = terrno;
-      dError("msg:%p, failed to process since %s", pMsg, terrstr());
+      dGError("msg:%p, failed to process since %s", pMsg, terrstr());
    }
    vmSendRsp(pMsg, code);
  }

-  dTrace("msg:%p, is freed, code:0x%x", pMsg, code);
+  dGTrace("msg:%p, is freed, code:0x%x", pMsg, code);
  rpcFreeCont(pMsg->pCont);
  taosFreeQitem(pMsg);
 }

 static void vmProcessQueryQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
-  SVnodeObj *pVnode = pInfo->ahandle;
+  SVnodeObj      *pVnode = pInfo->ahandle;
+  const STraceId *trace = &pMsg->info.traceId;

-  dTrace("vgId:%d, msg:%p get from vnode-query queue", pVnode->vgId, pMsg);
+  dGTrace("vgId:%d, msg:%p get from vnode-query queue", pVnode->vgId, pMsg);
  int32_t code = vnodeProcessQueryMsg(pVnode->pImpl, pMsg);
  if (code != 0) {
    if (terrno != 0) code = terrno;
-    dError("vgId:%d, msg:%p failed to query since %s", pVnode->vgId, pMsg, terrstr());
+    dGError("vgId:%d, msg:%p failed to query since %s", pVnode->vgId, pMsg, terrstr());
    vmSendRsp(pMsg, code);
  }

-  dTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
+  dGTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
  rpcFreeCont(pMsg->pCont);
  taosFreeQitem(pMsg);
 }

 static void vmProcessFetchQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
-  SVnodeObj *pVnode = pInfo->ahandle;
+  SVnodeObj      *pVnode = pInfo->ahandle;
+  const STraceId *trace = &pMsg->info.traceId;

-  dTrace("vgId:%d, msg:%p get from vnode-fetch queue", pVnode->vgId, pMsg);
+  dGTrace("vgId:%d, msg:%p get from vnode-fetch queue", pVnode->vgId, pMsg);
  int32_t code = vnodeProcessFetchMsg(pVnode->pImpl, pMsg, pInfo);
  if (code != 0) {
    if (terrno != 0) code = terrno;
-    dError("vgId:%d, msg:%p failed to fetch since %s", pVnode->vgId, pMsg, terrstr());
+    dGError("vgId:%d, msg:%p failed to fetch since %s", pVnode->vgId, pMsg, terrstr());
    vmSendRsp(pMsg, code);
  }

-  dTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
+  dGTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
  rpcFreeCont(pMsg->pCont);
  taosFreeQitem(pMsg);
 }

 static void vmProcessSyncQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
  SVnodeObj *pVnode = pInfo->ahandle;
-  SRpcMsg *  pMsg = NULL;
+  SRpcMsg   *pMsg = NULL;

  for (int32_t i = 0; i < numOfMsgs; ++i) {
    if (taosGetQitem(qall, (void **)&pMsg) == 0) continue;
-    dTrace("vgId:%d, msg:%p get from vnode-sync queue", pVnode->vgId, pMsg);
+    const STraceId *trace = &pMsg->info.traceId;
+    dGTrace("vgId:%d, msg:%p get from vnode-sync queue", pVnode->vgId, pMsg);

    int32_t code = vnodeProcessSyncReq(pVnode->pImpl, pMsg, NULL);
    if (code != 0) {
      if (terrno != 0) code = terrno;
-      dError("vgId:%d, msg:%p failed to sync since %s", pVnode->vgId, pMsg, terrstr());
+      dGError("vgId:%d, msg:%p failed to sync since %s", pVnode->vgId, pMsg, terrstr());
      vmSendRsp(pMsg, code);
    }

-    dTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
+    dGTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
    rpcFreeCont(pMsg->pCont);
    taosFreeQitem(pMsg);
  }
@ -119,59 +122,61 @@ static void vmProcessSyncQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOf

 static void vmProcessMergeQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
  SVnodeObj *pVnode = pInfo->ahandle;
-  SRpcMsg *  pMsg = NULL;
+  SRpcMsg   *pMsg = NULL;

  for (int32_t i = 0; i < numOfMsgs; ++i) {
    if (taosGetQitem(qall, (void **)&pMsg) == 0) continue;
-    dTrace("vgId:%d, msg:%p get from vnode-merge queue", pVnode->vgId, pMsg);
+    const STraceId *trace = &pMsg->info.traceId;
+    dGTrace("vgId:%d, msg:%p get from vnode-merge queue", pVnode->vgId, pMsg);

    int32_t code = vnodeProcessFetchMsg(pVnode->pImpl, pMsg, pInfo);
    if (code != 0) {
      if (terrno != 0) code = terrno;
-      dError("vgId:%d, msg:%p failed to merge since %s", pVnode->vgId, pMsg, terrstr());
+      dGError("vgId:%d, msg:%p failed to merge since %s", pVnode->vgId, pMsg, terrstr());
      vmSendRsp(pMsg, code);
    }

-    dTrace("msg:%p, is freed, code:0x%x", pMsg, code);
+    dGTrace("msg:%p, is freed, code:0x%x", pMsg, code);
    rpcFreeCont(pMsg->pCont);
    taosFreeQitem(pMsg);
  }
 }

 static int32_t vmPutMsgToQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg, EQueueType qtype) {
-  SMsgHead *pHead = pMsg->pCont;
-  int32_t   code = 0;
+  const STraceId *trace = &pMsg->info.traceId;
+  SMsgHead       *pHead = pMsg->pCont;
+  int32_t         code = 0;

  pHead->contLen = ntohl(pHead->contLen);
  pHead->vgId = ntohl(pHead->vgId);

  SVnodeObj *pVnode = vmAcquireVnode(pMgmt, pHead->vgId);
  if (pVnode == NULL) {
-    dError("vgId:%d, msg:%p failed to put into vnode queue since %s, type:%s", pHead->vgId, pMsg, terrstr(),
-           TMSG_INFO(pMsg->msgType));
+    dGError("vgId:%d, msg:%p failed to put into vnode queue since %s, type:%s", pHead->vgId, pMsg, terrstr(),
+            TMSG_INFO(pMsg->msgType));
    return terrno != 0 ? terrno : -1;
  }

  switch (qtype) {
    case QUERY_QUEUE:
      vnodePreprocessQueryMsg(pVnode->pImpl, pMsg);
-      dTrace("vgId:%d, msg:%p put into vnode-query queue", pVnode->vgId, pMsg);
+      dGTrace("vgId:%d, msg:%p put into vnode-query queue", pVnode->vgId, pMsg);
      taosWriteQitem(pVnode->pQueryQ, pMsg);
      break;
    case FETCH_QUEUE:
-      dTrace("vgId:%d, msg:%p put into vnode-fetch queue", pVnode->vgId, pMsg);
+      dGTrace("vgId:%d, msg:%p put into vnode-fetch queue", pVnode->vgId, pMsg);
      taosWriteQitem(pVnode->pFetchQ, pMsg);
      break;
    case WRITE_QUEUE:
-      dTrace("vgId:%d, msg:%p put into vnode-write queue", pVnode->vgId, pMsg);
+      dGTrace("vgId:%d, msg:%p put into vnode-write queue", pVnode->vgId, pMsg);
      taosWriteQitem(pVnode->pWriteQ, pMsg);
      break;
    case SYNC_QUEUE:
-      dTrace("vgId:%d, msg:%p put into vnode-sync queue", pVnode->vgId, pMsg);
+      dGTrace("vgId:%d, msg:%p put into vnode-sync queue", pVnode->vgId, pMsg);
      taosWriteQitem(pVnode->pSyncQ, pMsg);
      break;
    case APPLY_QUEUE:
-      dTrace("vgId:%d, msg:%p put into vnode-apply queue", pVnode->vgId, pMsg);
+      dGTrace("vgId:%d, msg:%p put into vnode-apply queue", pVnode->vgId, pMsg);
      taosWriteQitem(pVnode->pApplyQ, pMsg);
      break;
    default:
@ -193,13 +198,15 @@ int32_t vmPutMsgToQueryQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) { return vmPutMsg
 int32_t vmPutMsgToFetchQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) { return vmPutMsgToQueue(pMgmt, pMsg, FETCH_QUEUE); }

 int32_t vmPutMsgToMgmtQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  dTrace("msg:%p, put into vnode-mgmt queue", pMsg);
+  const STraceId *trace = &pMsg->info.traceId;
+  dGTrace("msg:%p, put into vnode-mgmt queue", pMsg);
  taosWriteQitem(pMgmt->mgmtWorker.queue, pMsg);
  return 0;
 }

 int32_t vmPutMsgToMonitorQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg) {
-  dTrace("msg:%p, put into vnode-monitor queue", pMsg);
+  const STraceId *trace = &pMsg->info.traceId;
+  dGTrace("msg:%p, put into vnode-monitor queue", pMsg);
  taosWriteQitem(pMgmt->monitorWorker.queue, pMsg);
  return 0;
 }
@ -251,10 +258,9 @@ int32_t vmAllocQueue(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
  pVnode->pApplyQ = tWWorkerAllocQueue(&pMgmt->applyPool, pVnode->pImpl, (FItems)vnodeApplyMsg);
  pVnode->pQueryQ = tQWorkerAllocQueue(&pMgmt->queryPool, pVnode, (FItem)vmProcessQueryQueue);
  pVnode->pFetchQ = tQWorkerAllocQueue(&pMgmt->fetchPool, pVnode, (FItem)vmProcessFetchQueue);
-  pVnode->pMergeQ = tWWorkerAllocQueue(&pMgmt->mergePool, pVnode, (FItems)vmProcessMergeQueue);

  if (pVnode->pWriteQ == NULL || pVnode->pSyncQ == NULL || pVnode->pApplyQ == NULL || pVnode->pQueryQ == NULL ||
-      pVnode->pFetchQ == NULL || pVnode->pMergeQ == NULL) {
+      pVnode->pFetchQ == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }
@ -269,13 +275,11 @@ void vmFreeQueue(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
  tWWorkerFreeQueue(&pMgmt->syncPool, pVnode->pSyncQ);
  tQWorkerFreeQueue(&pMgmt->queryPool, pVnode->pQueryQ);
  tQWorkerFreeQueue(&pMgmt->fetchPool, pVnode->pFetchQ);
-  tWWorkerFreeQueue(&pMgmt->mergePool, pVnode->pMergeQ);
  pVnode->pWriteQ = NULL;
  pVnode->pSyncQ = NULL;
  pVnode->pApplyQ = NULL;
  pVnode->pQueryQ = NULL;
  pVnode->pFetchQ = NULL;
-  pVnode->pMergeQ = NULL;
  dDebug("vgId:%d, queue is freed", pVnode->vgId);
 }

@ -307,11 +311,6 @@ int32_t vmStartWorker(SVnodeMgmt *pMgmt) {
  pSPool->max = tsNumOfVnodeSyncThreads;
  if (tWWorkerInit(pSPool) != 0) return -1;

-  SWWorkerPool *pMPool = &pMgmt->mergePool;
-  pMPool->name = "vnode-merge";
-  pMPool->max = tsNumOfVnodeMergeThreads;
-  if (tWWorkerInit(pMPool) != 0) return -1;
-
  SSingleWorkerCfg mgmtCfg = {
      .min = 1,
      .max = 1,
@ -342,6 +341,5 @@ void vmStopWorker(SVnodeMgmt *pMgmt) {
  tWWorkerCleanup(&pMgmt->syncPool);
  tQWorkerCleanup(&pMgmt->queryPool);
  tQWorkerCleanup(&pMgmt->fetchPool);
-  tWWorkerCleanup(&pMgmt->mergePool);
  dDebug("vnode workers are closed");
 }
--- a/source/dnode/mgmt/node_mgmt/src/dmTransport.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
@ -17,9 +17,44 @@
 #include "dmMgmt.h"
 #include "qworker.h"

-static void dmSendRedirectRsp(SRpcMsg *pMsg, const SEpSet *pNewEpSet);
-static void dmSendRsp(SRpcMsg *pMsg);
-static void dmBuildMnodeRedirectRsp(SDnode *pDnode, SRpcMsg *pMsg);
+static inline void dmSendRsp(SRpcMsg *pMsg) {
+  SMgmtWrapper *pWrapper = pMsg->info.wrapper;
+  if (InChildProc(pWrapper)) {
+    dmPutToProcPQueue(&pWrapper->proc, pMsg, DND_FUNC_RSP);
+  } else {
+    rpcSendResponse(pMsg);
+  }
+}
+
+static inline void dmBuildMnodeRedirectRsp(SDnode *pDnode, SRpcMsg *pMsg) {
+  SEpSet epSet = {0};
+  dmGetMnodeEpSetForRedirect(&pDnode->data, pMsg, &epSet);
+
+  const int32_t contLen = tSerializeSEpSet(NULL, 0, &epSet);
+  pMsg->pCont = rpcMallocCont(contLen);
+  if (pMsg->pCont == NULL) {
+    pMsg->code = TSDB_CODE_OUT_OF_MEMORY;
+  } else {
+    tSerializeSEpSet(pMsg->pCont, contLen, &epSet);
+    pMsg->contLen = contLen;
+  }
+}
+
+static inline void dmSendRedirectRsp(SRpcMsg *pMsg, const SEpSet *pNewEpSet) {
+  SRpcMsg rsp = {.code = TSDB_CODE_RPC_REDIRECT, .info = pMsg->info};
+  int32_t contLen = tSerializeSEpSet(NULL, 0, pNewEpSet);
+
+  rsp.pCont = rpcMallocCont(contLen);
+  if (rsp.pCont == NULL) {
+    pMsg->code = TSDB_CODE_OUT_OF_MEMORY;
+  } else {
+    tSerializeSEpSet(rsp.pCont, contLen, pNewEpSet);
+    rsp.contLen = contLen;
+  }
+  dmSendRsp(&rsp);
+  rpcFreeCont(pMsg->pCont);
+  pMsg->pCont = NULL;
+}

 int32_t dmProcessNodeMsg(SMgmtWrapper *pWrapper, SRpcMsg *pMsg) {
  NodeMsgFp msgFp = pWrapper->msgFps[TMSG_INDEX(pMsg->msgType)];
@ -28,31 +63,38 @@ int32_t dmProcessNodeMsg(SMgmtWrapper *pWrapper, SRpcMsg *pMsg) {
    return -1;
  }

-  dTrace("msg:%p, will be processed by %s", pMsg, pWrapper->name);
+  const STraceId *trace = &pMsg->info.traceId;
+  dGTrace("msg:%p, will be processed by %s", pMsg, pWrapper->name);
  pMsg->info.wrapper = pWrapper;
  return (*msgFp)(pWrapper->pMgmt, pMsg);
 }

 static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {
-  SDnodeTrans * pTrans = &pDnode->trans;
+  SDnodeTrans  *pTrans = &pDnode->trans;
  int32_t       code = -1;
-  SRpcMsg *     pMsg = NULL;
+  SRpcMsg      *pMsg = NULL;
  SMgmtWrapper *pWrapper = NULL;
  SDnodeHandle *pHandle = &pTrans->msgHandles[TMSG_INDEX(pRpc->msgType)];

-  STraceId *trace = &pRpc->info.traceId;
+  const STraceId *trace = &pRpc->info.traceId;
  dGTrace("msg:%s is received, handle:%p len:%d code:0x%x app:%p refId:%" PRId64, TMSG_INFO(pRpc->msgType),
          pRpc->info.handle, pRpc->contLen, pRpc->code, pRpc->info.ahandle, pRpc->info.refId);

-  if (pRpc->msgType == TDMT_DND_NET_TEST) {
-    dmProcessNetTestReq(pDnode, pRpc);
-    return;
-  } else if (pRpc->msgType == TDMT_MND_SYSTABLE_RETRIEVE_RSP || pRpc->msgType == TDMT_VND_FETCH_RSP) {
-    qWorkerProcessFetchRsp(NULL, NULL, pRpc, 0);
-    return;
-  } else if (pRpc->msgType == TDMT_MND_STATUS_RSP && pEpSet != NULL) {
-    dmSetMnodeEpSet(&pDnode->data, pEpSet);
-  } else {
+  switch (pRpc->msgType) {
+    case TDMT_DND_NET_TEST:
+      dmProcessNetTestReq(pDnode, pRpc);
+      return;
+    case TDMT_MND_SYSTABLE_RETRIEVE_RSP:
+    case TDMT_VND_FETCH_RSP:
+      qWorkerProcessFetchRsp(NULL, NULL, pRpc, 0);
+      return;
+    case TDMT_MND_STATUS_RSP:
+      if (pEpSet != NULL) {
+        dmSetMnodeEpSet(&pDnode->data, pEpSet);
+      }
+      break;
+    default:
+      break;
  }

  if (pDnode->status != DND_STAT_RUNNING) {
@ -73,39 +115,43 @@ static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {
  if (pHandle->defaultNtype == NODE_END) {
    terrno = TSDB_CODE_MSG_NOT_PROCESSED;
    goto _OVER;
-  } else {
-    pWrapper = &pDnode->wrappers[pHandle->defaultNtype];
-    if (pHandle->needCheckVgId) {
-      if (pRpc->contLen > 0) {
-        SMsgHead *pHead = pRpc->pCont;
-        int32_t   vgId = ntohl(pHead->vgId);
-        if (vgId == QNODE_HANDLE) {
+  }
+
+  pWrapper = &pDnode->wrappers[pHandle->defaultNtype];
+  if (pHandle->needCheckVgId) {
+    if (pRpc->contLen > 0) {
+      const SMsgHead *pHead = pRpc->pCont;
+      const int32_t   vgId = ntohl(pHead->vgId);
+      switch (vgId) {
+        case QNODE_HANDLE:
          pWrapper = &pDnode->wrappers[QNODE];
-        } else if (vgId == SNODE_HANDLE) {
+          break;
+        case SNODE_HANDLE:
          pWrapper = &pDnode->wrappers[SNODE];
-        } else if (vgId == MNODE_HANDLE) {
+          break;
+        case MNODE_HANDLE:
          pWrapper = &pDnode->wrappers[MNODE];
-        } else {
-        }
-      } else {
-        terrno = TSDB_CODE_INVALID_MSG_LEN;
-        goto _OVER;
+          break;
+        default:
+          break;
      }
+    } else {
+      terrno = TSDB_CODE_INVALID_MSG_LEN;
+      goto _OVER;
    }
  }

  if (dmMarkWrapper(pWrapper) != 0) {
    pWrapper = NULL;
    goto _OVER;
-  } else {
-    pRpc->info.wrapper = pWrapper;
  }

+  pRpc->info.wrapper = pWrapper;
  pMsg = taosAllocateQitem(sizeof(SRpcMsg), RPC_QITEM);
  if (pMsg == NULL) goto _OVER;
-  memcpy(pMsg, pRpc, sizeof(SRpcMsg));

-  dTrace("msg:%p, is created, type:%s handle:%p", pMsg, TMSG_INFO(pRpc->msgType), pMsg->info.handle);
+  memcpy(pMsg, pRpc, sizeof(SRpcMsg));
+  dGTrace("msg:%p, is created, type:%s handle:%p", pMsg, TMSG_INFO(pRpc->msgType), pMsg->info.handle);

  if (InParentProc(pWrapper)) {
    code = dmPutToProcCQueue(&pWrapper->proc, pMsg, DND_FUNC_REQ);
@ -115,13 +161,11 @@ static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {

 _OVER:
  if (code != 0) {
-    dTrace("failed to process msg:%p since %s, handle:%p", pMsg, terrstr(), pRpc->info.handle);
-
    if (terrno != 0) code = terrno;
+    dGTrace("msg:%p, failed to process since %s", pMsg, terrstr());

    if (IsReq(pRpc)) {
      SRpcMsg rsp = {.code = code, .info = pRpc->info};
-
      if ((code == TSDB_CODE_NODE_NOT_DEPLOYED || code == TSDB_CODE_APP_NOT_READY) && pRpc->msgType > TDMT_MND_MSG &&
          pRpc->msgType < TDMT_VND_MSG) {
        dmBuildMnodeRedirectRsp(pDnode, &rsp);
@ -135,7 +179,7 @@ _OVER:
    }

    if (pMsg != NULL) {
-      dTrace("msg:%p, is freed", pMsg);
+      dGTrace("msg:%p, is freed", pMsg);
      taosFreeQitem(pMsg);
    }
    rpcFreeCont(pRpc->pCont);
@ -149,11 +193,11 @@ int32_t dmInitMsgHandle(SDnode *pDnode) {

  for (EDndNodeType ntype = DNODE; ntype < NODE_END; ++ntype) {
    SMgmtWrapper *pWrapper = &pDnode->wrappers[ntype];
-    SArray *      pArray = (*pWrapper->func.getHandlesFp)();
+    SArray       *pArray = (*pWrapper->func.getHandlesFp)();
    if (pArray == NULL) return -1;

    for (int32_t i = 0; i < taosArrayGetSize(pArray); ++i) {
-      SMgmtHandle * pMgmt = taosArrayGet(pArray, i);
+      SMgmtHandle  *pMgmt = taosArrayGet(pArray, i);
      SDnodeHandle *pHandle = &pTrans->msgHandles[TMSG_INDEX(pMgmt->msgType)];
      if (pMgmt->needCheckVgId) {
        pHandle->needCheckVgId = pMgmt->needCheckVgId;
@ -184,45 +228,6 @@ static inline int32_t dmSendReq(const SEpSet *pEpSet, SRpcMsg *pMsg) {
  }
 }

-static inline void dmSendRsp(SRpcMsg *pMsg) {
-  SMgmtWrapper *pWrapper = pMsg->info.wrapper;
-  if (InChildProc(pWrapper)) {
-    dmPutToProcPQueue(&pWrapper->proc, pMsg, DND_FUNC_RSP);
-  } else {
-    rpcSendResponse(pMsg);
-  }
-}
-
-static void dmBuildMnodeRedirectRsp(SDnode *pDnode, SRpcMsg *pMsg) {
-  SEpSet epSet = {0};
-  dmGetMnodeEpSetForRedirect(&pDnode->data, pMsg, &epSet);
-
-  int32_t contLen = tSerializeSEpSet(NULL, 0, &epSet);
-  pMsg->pCont = rpcMallocCont(contLen);
-  if (pMsg->pCont == NULL) {
-    pMsg->code = TSDB_CODE_OUT_OF_MEMORY;
-  } else {
-    tSerializeSEpSet(pMsg->pCont, contLen, &epSet);
-    pMsg->contLen = contLen;
-  }
-}
-
-static inline void dmSendRedirectRsp(SRpcMsg *pMsg, const SEpSet *pNewEpSet) {
-  SRpcMsg rsp = {.code = TSDB_CODE_RPC_REDIRECT, .info = pMsg->info};
-  int32_t contLen = tSerializeSEpSet(NULL, 0, pNewEpSet);
-
-  rsp.pCont = rpcMallocCont(contLen);
-  if (rsp.pCont == NULL) {
-    terrno = TSDB_CODE_OUT_OF_MEMORY;
-  } else {
-    tSerializeSEpSet(rsp.pCont, contLen, pNewEpSet);
-    rsp.contLen = contLen;
-  }
-  dmSendRsp(&rsp);
-  rpcFreeCont(pMsg->pCont);
-  pMsg->pCont = NULL;
-}
-
 static inline void dmRegisterBrokenLinkArg(SRpcMsg *pMsg) {
  SMgmtWrapper *pWrapper = pMsg->info.wrapper;
  if (InChildProc(pWrapper)) {
--- a/source/dnode/mgmt/node_util/inc/dmUtil.h
+++ b/source/dnode/mgmt/node_util/inc/dmUtil.h
@ -40,18 +40,28 @@
 #include "wal.h"

 #include "libs/function/function.h"
-// clang-format off
 #ifdef __cplusplus
 extern "C" {
 #endif

-#define dFatal(...) { if (dDebugFlag & DEBUG_FATAL) { taosPrintLog("DND FATAL ", DEBUG_FATAL, 255, __VA_ARGS__); }}
-#define dError(...) { if (dDebugFlag & DEBUG_ERROR) { taosPrintLog("DND ERROR ", DEBUG_ERROR, 255, __VA_ARGS__); }}
-#define dWarn(...)  { if (dDebugFlag & DEBUG_WARN)  { taosPrintLog("DND WARN ", DEBUG_WARN, 255, __VA_ARGS__); }}
-#define dInfo(...)  { if (dDebugFlag & DEBUG_INFO)  { taosPrintLog("DND ", DEBUG_INFO, 255, __VA_ARGS__); }}
-#define dDebug(...) { if (dDebugFlag & DEBUG_DEBUG) { taosPrintLog("DND ", DEBUG_DEBUG, dDebugFlag, __VA_ARGS__); }}
-#define dTrace(...) { if (dDebugFlag & DEBUG_TRACE) { taosPrintLog("DND ", DEBUG_TRACE, dDebugFlag, __VA_ARGS__); }}
-#define dGTrace(param, ...) do { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dTrace(param ",GTID: %s", __VA_ARGS__, buf);} while(0)
+
+// clang-format off
+
+#define dFatal(...) { if (dDebugFlag & DEBUG_FATAL) { taosPrintLog("DND FATAL ", DEBUG_FATAL, 255,        __VA_ARGS__); }}
+#define dError(...) { if (dDebugFlag & DEBUG_ERROR) { taosPrintLog("DND ERROR ", DEBUG_ERROR, 255,        __VA_ARGS__); }}
+#define dWarn(...)  { if (dDebugFlag & DEBUG_WARN)  { taosPrintLog("DND WARN ",  DEBUG_WARN,  255,        __VA_ARGS__); }}
+#define dInfo(...)  { if (dDebugFlag & DEBUG_INFO)  { taosPrintLog("DND ",       DEBUG_INFO,  255,        __VA_ARGS__); }}
+#define dDebug(...) { if (dDebugFlag & DEBUG_DEBUG) { taosPrintLog("DND ",       DEBUG_DEBUG, dDebugFlag, __VA_ARGS__); }}
+#define dTrace(...) { if (dDebugFlag & DEBUG_TRACE) { taosPrintLog("DND ",       DEBUG_TRACE, dDebugFlag, __VA_ARGS__); }}
+
+#define dGFatal(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dFatal(param ", gtid:%s", __VA_ARGS__, buf);}
+#define dGError(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dError(param ", gtid:%s", __VA_ARGS__, buf);}
+#define dGWarn(param, ...)  { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dWarn (param ", gtid:%s", __VA_ARGS__, buf);}
+#define dGInfo(param, ...)  { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dInfo (param ", gtid:%s", __VA_ARGS__, buf);}
+#define dGDebug(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dDebug(param ", gtid:%s", __VA_ARGS__, buf);}
+#define dGTrace(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); dTrace(param ", gtid:%s", __VA_ARGS__, buf);}
+
+// clang-format on

 typedef enum {
  DNODE = 0,
@ -185,4 +195,3 @@ void    dmSetMnodeEpSet(SDnodeData *pData, SEpSet *pEpSet);
 #endif

 #endif /*_TD_DM_INT_H_*/
-// clang-format on
--- a/source/dnode/mgmt/test/sut/src/sut.cpp
+++ b/source/dnode/mgmt/test/sut/src/sut.cpp
@ -102,6 +102,7 @@ int32_t Testbase::SendShowReq(int8_t showType, const char* tb, const char* db) {
  ASSERT(pRsp->pCont != nullptr);

  if (pRsp->contLen == 0) return -1;
+  if (pRsp->code != 0) return -1;

  showRsp = (SRetrieveMetaTableRsp*)pRsp->pCont;
  showRsp->handle = htobe64(showRsp->handle);  // show Id
--- a/source/dnode/mnode/impl/inc/mndDef.h
+++ b/source/dnode/mnode/impl/inc/mndDef.h
@ -341,14 +341,15 @@ typedef struct {
  int32_t  colVer;
  int32_t  smaVer;
  int32_t  nextColId;
-  float    xFilesFactor;
-  int32_t  delay;
+  int64_t  watermark[2];
+  int64_t  maxdelay[2];
  int32_t  ttl;
  int32_t  numOfColumns;
  int32_t  numOfTags;
  int32_t  commentLen;
  int32_t  ast1Len;
  int32_t  ast2Len;
+  SArray*  pFuncs;
  SSchema* pColumns;
  SSchema* pTags;
  char*    comment;
@ -420,7 +421,8 @@ typedef struct {
  int64_t        uid;
  int64_t        dbUid;
  int32_t        version;
-  int8_t         subType;  // column, db or stable
+  int8_t         subType;   // column, db or stable
+  int8_t         withMeta;  // TODO
  SRWLatch       lock;
  int32_t        sqlLen;
  int32_t        astLen;
@ -487,6 +489,7 @@ typedef struct {
  int64_t   dbUid;
  int32_t   vgNum;
  int8_t    subType;
+  int8_t    withMeta;
  int64_t   stbUid;
  SHashObj* consumerHash;   // consumerId -> SMqConsumerEp
  SArray*   unassignedVgs;  // SArray<SMqVgEp*>
--- a/source/dnode/mnode/impl/inc/mndInfoSchema.h
+++ b/source/dnode/mnode/impl/inc/mndInfoSchema.h
@ -25,6 +25,7 @@ extern "C" {
 int32_t mndInitInfos(SMnode *pMnode);
 void    mndCleanupInfos(SMnode *pMnode);
 int32_t mndBuildInsTableSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp);
+int32_t mndBuildInsTableCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp);

 #ifdef __cplusplus
 }
--- a/source/dnode/mnode/impl/inc/mndInt.h
+++ b/source/dnode/mnode/impl/inc/mndInt.h
@ -34,13 +34,21 @@ extern "C" {
 #endif

 // clang-format off
-#define mFatal(...) { if (mDebugFlag & DEBUG_FATAL) { taosPrintLog("MND FATAL ", DEBUG_FATAL, 255, __VA_ARGS__); }}
-#define mError(...) { if (mDebugFlag & DEBUG_ERROR) { taosPrintLog("MND ERROR ", DEBUG_ERROR, 255, __VA_ARGS__); }}
-#define mWarn(...)  { if (mDebugFlag & DEBUG_WARN)  { taosPrintLog("MND WARN ", DEBUG_WARN, 255, __VA_ARGS__); }}
-#define mInfo(...)  { if (mDebugFlag & DEBUG_INFO)  { taosPrintLog("MND ", DEBUG_INFO, 255, __VA_ARGS__); }}
-#define mDebug(...) { if (mDebugFlag & DEBUG_DEBUG) { taosPrintLog("MND ", DEBUG_DEBUG, mDebugFlag, __VA_ARGS__); }}
-#define mTrace(...) { if (mDebugFlag & DEBUG_TRACE) { taosPrintLog("MND ", DEBUG_TRACE, mDebugFlag, __VA_ARGS__); }}
-#define mGTrace(param, ...) do { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mTrace(param ", GTID: %s", __VA_ARGS__, buf);} while(0)
+
+
+#define mFatal(...) { if (mDebugFlag & DEBUG_FATAL) { taosPrintLog("MND FATAL ", DEBUG_FATAL, 255,        __VA_ARGS__); }}
+#define mError(...) { if (mDebugFlag & DEBUG_ERROR) { taosPrintLog("MND ERROR ", DEBUG_ERROR, 255,        __VA_ARGS__); }}
+#define mWarn(...)  { if (mDebugFlag & DEBUG_WARN)  { taosPrintLog("MND WARN ",  DEBUG_WARN,  255,        __VA_ARGS__); }}
+#define mInfo(...)  { if (mDebugFlag & DEBUG_INFO)  { taosPrintLog("MND ",       DEBUG_INFO,  255,        __VA_ARGS__); }}
+#define mDebug(...) { if (mDebugFlag & DEBUG_DEBUG) { taosPrintLog("MND ",       DEBUG_DEBUG, mDebugFlag, __VA_ARGS__); }}
+#define mTrace(...) { if (mDebugFlag & DEBUG_TRACE) { taosPrintLog("MND ",       DEBUG_TRACE, mDebugFlag, __VA_ARGS__); }}
+
+#define mGFatal(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mFatal(param ", gtid:%s", __VA_ARGS__, buf);}
+#define mGError(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mError(param ", gtid:%s", __VA_ARGS__, buf);}
+#define mGWarn(param, ...)  { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mWarn (param ", gtid:%s", __VA_ARGS__, buf);}
+#define mGInfo(param, ...)  { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mInfo (param ", gtid:%s", __VA_ARGS__, buf);}
+#define mGDebug(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mDebug(param ", gtid:%s", __VA_ARGS__, buf);}
+#define mGTrace(param, ...) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); mTrace(param ", gtid:%s", __VA_ARGS__, buf);}

 // clang-format on

@ -70,7 +78,7 @@ typedef struct {

 typedef struct {
  SCacheObj *connCache;
-  SCacheObj *appCache;  
+  SCacheObj *appCache;
 } SProfileMgmt;

 typedef struct {
--- a/source/dnode/mnode/impl/inc/mndPerfSchema.h
+++ b/source/dnode/mnode/impl/inc/mndPerfSchema.h
@ -23,6 +23,7 @@ extern "C" {
 #endif

 int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp);
+int32_t mndBuildPerfsTableCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp);
 int32_t mndInitPerfs(SMnode *pMnode);
 void mndCleanupPerfs(SMnode *pMnode);

--- a/source/dnode/mnode/impl/inc/mndScheduler.h
+++ b/source/dnode/mnode/impl/inc/mndScheduler.h
@ -30,7 +30,7 @@ int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscrib
 int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream);

 int32_t mndConvertRsmaTask(char** pDst, int32_t* pDstLen, const char* ast, int64_t uid, int8_t triggerType,
-                           int64_t watermark, double filesFactor);
+                           int64_t watermark);

 int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream);

--- a/source/dnode/mnode/impl/src/mndDef.c
+++ b/source/dnode/mnode/impl/src/mndDef.c
@ -381,6 +381,7 @@ SMqSubscribeObj *tCloneSubscribeObj(const SMqSubscribeObj *pSub) {
  pSubNew->dbUid = pSub->dbUid;
  pSubNew->stbUid = pSub->stbUid;
  pSubNew->subType = pSub->subType;
+  pSubNew->withMeta = pSub->withMeta;

  pSubNew->vgNum = pSub->vgNum;
  pSubNew->consumerHash = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
@ -414,6 +415,7 @@ int32_t tEncodeSubscribeObj(void **buf, const SMqSubscribeObj *pSub) {
  tlen += taosEncodeFixedI64(buf, pSub->dbUid);
  tlen += taosEncodeFixedI32(buf, pSub->vgNum);
  tlen += taosEncodeFixedI8(buf, pSub->subType);
+  tlen += taosEncodeFixedI8(buf, pSub->withMeta);
  tlen += taosEncodeFixedI64(buf, pSub->stbUid);

  void   *pIter = NULL;
@ -440,6 +442,7 @@ void *tDecodeSubscribeObj(const void *buf, SMqSubscribeObj *pSub) {
  buf = taosDecodeFixedI64(buf, &pSub->dbUid);
  buf = taosDecodeFixedI32(buf, &pSub->vgNum);
  buf = taosDecodeFixedI8(buf, &pSub->subType);
+  buf = taosDecodeFixedI8(buf, &pSub->withMeta);
  buf = taosDecodeFixedI64(buf, &pSub->stbUid);

  int32_t sz;
--- a/source/dnode/mnode/impl/src/mndInfoSchema.c
+++ b/source/dnode/mnode/impl/src/mndInfoSchema.c
@ -90,6 +90,38 @@ int32_t mndBuildInsTableSchema(SMnode *pMnode, const char *dbFName, const char *
  return 0;
 }

+int32_t mndBuildInsTableCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp) {
+  if (NULL == pMnode->infosMeta) {
+    terrno = TSDB_CODE_MND_NOT_READY;
+    return -1;
+  }
+
+  STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, tbName, strlen(tbName));
+  if (NULL == pMeta) {
+    mError("invalid information schema table name:%s", tbName);
+    terrno = TSDB_CODE_MND_INVALID_SYS_TABLENAME;
+    return -1;
+  }
+
+  strcpy(pRsp->tbName, pMeta->tbName);
+  strcpy(pRsp->stbName, pMeta->stbName);
+  strcpy(pRsp->dbFName, pMeta->dbFName);
+  pRsp->numOfTags = pMeta->numOfTags;
+  pRsp->numOfColumns = pMeta->numOfColumns;
+  pRsp->tableType = pMeta->tableType;
+
+  pRsp->pSchemas = taosMemoryCalloc(pMeta->numOfColumns, sizeof(SSchema));
+  if (pRsp->pSchemas == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    pRsp->pSchemas = NULL;
+    return -1;
+  }
+
+  memcpy(pRsp->pSchemas, pMeta->pSchemas, pMeta->numOfColumns * sizeof(SSchema));
+  return 0;
+}
+
+
 int32_t mndInitInfos(SMnode *pMnode) {
  pMnode->infosMeta = taosHashInit(20, taosGetDefaultHashFunction(TSDB_DATA_TYPE_VARCHAR), false, HASH_NO_LOCK);
  if (pMnode->infosMeta == NULL) {
--- a/source/dnode/mnode/impl/src/mndMain.c
+++ b/source/dnode/mnode/impl/src/mndMain.c
@ -58,23 +58,29 @@ static void *mndBuildTimerMsg(int32_t *pContLen) {

 static void mndPullupTrans(SMnode *pMnode) {
  int32_t contLen = 0;
-  void *  pReq = mndBuildTimerMsg(&contLen);
-  SRpcMsg rpcMsg = {.msgType = TDMT_MND_TRANS_TIMER, .pCont = pReq, .contLen = contLen};
-  tmsgPutToQueue(&pMnode->msgCb, WRITE_QUEUE, &rpcMsg);
+  void   *pReq = mndBuildTimerMsg(&contLen);
+  if (pReq != NULL) {
+    SRpcMsg rpcMsg = {.msgType = TDMT_MND_TRANS_TIMER, .pCont = pReq, .contLen = contLen};
+    tmsgPutToQueue(&pMnode->msgCb, WRITE_QUEUE, &rpcMsg);
+  }
 }

 static void mndCalMqRebalance(SMnode *pMnode) {
  int32_t contLen = 0;
-  void *  pReq = mndBuildTimerMsg(&contLen);
-  SRpcMsg rpcMsg = {.msgType = TDMT_MND_MQ_TIMER, .pCont = pReq, .contLen = contLen};
-  tmsgPutToQueue(&pMnode->msgCb, READ_QUEUE, &rpcMsg);
+  void   *pReq = mndBuildTimerMsg(&contLen);
+  if (pReq != NULL) {
+    SRpcMsg rpcMsg = {.msgType = TDMT_MND_MQ_TIMER, .pCont = pReq, .contLen = contLen};
+    tmsgPutToQueue(&pMnode->msgCb, READ_QUEUE, &rpcMsg);
+  }
 }

 static void mndPullupTelem(SMnode *pMnode) {
  int32_t contLen = 0;
-  void *  pReq = mndBuildTimerMsg(&contLen);
-  SRpcMsg rpcMsg = {.msgType = TDMT_MND_TELEM_TIMER, .pCont = pReq, .contLen = contLen};
-  tmsgPutToQueue(&pMnode->msgCb, READ_QUEUE, &rpcMsg);
+  void   *pReq = mndBuildTimerMsg(&contLen);
+  if (pReq != NULL) {
+    SRpcMsg rpcMsg = {.msgType = TDMT_MND_TELEM_TIMER, .pCont = pReq, .contLen = contLen};
+    tmsgPutToQueue(&pMnode->msgCb, READ_QUEUE, &rpcMsg);
+  }
 }

 static void mndPushTtlTime(SMnode *pMnode) {
@ -86,27 +92,28 @@ static void mndPushTtlTime(SMnode *pMnode) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;

-    int32_t contLen = sizeof(SMsgHead) + sizeof(int32_t);
-    SMsgHead   *pHead = rpcMallocCont(contLen);
+    int32_t   contLen = sizeof(SMsgHead) + sizeof(int32_t);
+    SMsgHead *pHead = rpcMallocCont(contLen);
    if (pHead == NULL) {
-      mError("ttl time malloc err. contLen:%d", contLen);
+      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      continue;
    }
+
    pHead->contLen = htonl(contLen);
    pHead->vgId = htonl(pVgroup->vgId);

    int32_t t = taosGetTimestampSec();
-    *(int32_t*)(POINTER_SHIFT(pHead, sizeof(SMsgHead))) = htonl(t);
+    *(int32_t *)(POINTER_SHIFT(pHead, sizeof(SMsgHead))) = htonl(t);

    SRpcMsg rpcMsg = {.msgType = TDMT_VND_DROP_TTL_TABLE, .pCont = pHead, .contLen = contLen};
-
-    SEpSet epSet = mndGetVgroupEpset(pMnode, pVgroup);
+    SEpSet  epSet = mndGetVgroupEpset(pMnode, pVgroup);
    int32_t code = tmsgSendReq(&epSet, &rpcMsg);
-    if(code != 0){
-      mError("ttl time seed err. code:%d", code);
+    if (code != 0) {
+      mError("failed to send ttl time seed msg, code:0x%x", code);
+    } else {
+      mInfo("send ttl time seed msg, time:%d", t);
    }
-    mError("ttl time seed succ. time:%d", t);
    sdbRelease(pSdb, pVgroup);
  }
 }
@ -117,11 +124,12 @@ static void *mndThreadFp(void *param) {
  setThreadName("mnode-timer");

  while (1) {
+    lastTime++;
+    
    if (lastTime % (864000) == 0) {   // sleep 1 day for ttl
      mndPushTtlTime(pMnode);
    }

-    lastTime++;
    taosMsleep(100);
    if (mndGetStop(pMnode)) break;

@ -416,7 +424,7 @@ void mndStop(SMnode *pMnode) {
 }

 int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
-  SMnode *   pMnode = pMsg->info.node;
+  SMnode    *pMnode = pMsg->info.node;
  SSyncMgmt *pMgmt = &pMnode->syncMgmt;
  int32_t    code = 0;

@ -433,15 +441,19 @@ int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
    return -1;
  }

-  char  logBuf[512] = {0};
-  char *syncNodeStr = sync2SimpleStr(pMgmt->sync);
-  snprintf(logBuf, sizeof(logBuf), "==mndProcessSyncMsg== msgType:%d, syncNode: %s", pMsg->msgType, syncNodeStr);
-  static int64_t mndTick = 0;
-  if (++mndTick % 10 == 1) {
-    mTrace("sync trace msg:%s, %s", TMSG_INFO(pMsg->msgType), syncNodeStr);
-  }
-  syncRpcMsgLog2(logBuf, pMsg);
-  taosMemoryFree(syncNodeStr);
+  do {
+    char          *syncNodeStr = sync2SimpleStr(pMgmt->sync);
+    static int64_t mndTick = 0;
+    if (++mndTick % 10 == 1) {
+      mTrace("vgId:%d, sync heartbeat msg:%s, %s", syncGetVgId(pMgmt->sync), TMSG_INFO(pMsg->msgType), syncNodeStr);
+    }
+    if (gRaftDetailLog) {
+      char logBuf[512] = {0};
+      snprintf(logBuf, sizeof(logBuf), "==mndProcessSyncMsg== msgType:%d, syncNode: %s", pMsg->msgType, syncNodeStr);
+      syncRpcMsgLog2(logBuf, pMsg);
+    }
+    taosMemoryFree(syncNodeStr);
+  } while (0);

  // ToDo: ugly! use function pointer
  if (syncNodeSnapshotEnable(pSyncNode)) {
@ -545,25 +557,25 @@ int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
 static int32_t mndCheckMnodeState(SRpcMsg *pMsg) {
  if (!IsReq(pMsg)) return 0;
  if (mndAcquireRpcRef(pMsg->info.node) == 0) return 0;
+  if (pMsg->msgType == TDMT_MND_MQ_TIMER || pMsg->msgType == TDMT_MND_TELEM_TIMER ||
+      pMsg->msgType == TDMT_MND_TRANS_TIMER) {
+    return -1;
+  }

-  if (IsReq(pMsg) && pMsg->msgType != TDMT_MND_MQ_TIMER && pMsg->msgType != TDMT_MND_TELEM_TIMER &&
-      pMsg->msgType != TDMT_MND_TRANS_TIMER) {
-    mError("msg:%p, failed to check mnode state since %s, type:%s", pMsg, terrstr(), TMSG_INFO(pMsg->msgType));
+  const STraceId *trace = &pMsg->info.traceId;
+  mGError("msg:%p, failed to check mnode state since %s, type:%s", pMsg, terrstr(), TMSG_INFO(pMsg->msgType));

-    mndAbortPreprocessMsg(pMsg);
+  SEpSet epSet = {0};
+  mndGetMnodeEpSet(pMsg->info.node, &epSet);

-    SEpSet epSet = {0};
-    mndGetMnodeEpSet(pMsg->info.node, &epSet);
-
-    int32_t contLen = tSerializeSEpSet(NULL, 0, &epSet);
-    pMsg->info.rsp = rpcMallocCont(contLen);
-    if (pMsg->info.rsp != NULL) {
-      tSerializeSEpSet(pMsg->info.rsp, contLen, &epSet);
-      pMsg->info.rspLen = contLen;
-      terrno = TSDB_CODE_RPC_REDIRECT;
-    } else {
-      terrno = TSDB_CODE_OUT_OF_MEMORY;
-    }
+  int32_t contLen = tSerializeSEpSet(NULL, 0, &epSet);
+  pMsg->info.rsp = rpcMallocCont(contLen);
+  if (pMsg->info.rsp != NULL) {
+    tSerializeSEpSet(pMsg->info.rsp, contLen, &epSet);
+    pMsg->info.rspLen = contLen;
+    terrno = TSDB_CODE_RPC_REDIRECT;
+  } else {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
  }

  return -1;
@ -573,17 +585,20 @@ static int32_t mndCheckMsgContent(SRpcMsg *pMsg) {
  if (!IsReq(pMsg)) return 0;
  if (pMsg->contLen != 0 && pMsg->pCont != NULL) return 0;

-  mError("msg:%p, failed to check msg, cont:%p contLen:%d, app:%p type:%s", pMsg, pMsg->pCont, pMsg->contLen,
+  const STraceId *trace = &pMsg->info.traceId;
+  mGError("msg:%p, failed to check msg, cont:%p contLen:%d, app:%p type:%s", pMsg, pMsg->pCont, pMsg->contLen,
         pMsg->info.ahandle, TMSG_INFO(pMsg->msgType));
  terrno = TSDB_CODE_INVALID_MSG_LEN;
  return -1;
 }

 int32_t mndProcessRpcMsg(SRpcMsg *pMsg) {
-  SMnode * pMnode = pMsg->info.node;
+  SMnode         *pMnode = pMsg->info.node;
+  const STraceId *trace = &pMsg->info.traceId;
+
  MndMsgFp fp = pMnode->msgFp[TMSG_INDEX(pMsg->msgType)];
  if (fp == NULL) {
-    mError("msg:%p, failed to get msg handle, app:%p type:%s", pMsg, pMsg->info.ahandle, TMSG_INFO(pMsg->msgType));
+    mGError("msg:%p, failed to get msg handle, app:%p type:%s", pMsg, pMsg->info.ahandle, TMSG_INFO(pMsg->msgType));
    terrno = TSDB_CODE_MSG_NOT_PROCESSED;
    return -1;
  }
@ -591,18 +606,17 @@ int32_t mndProcessRpcMsg(SRpcMsg *pMsg) {
  if (mndCheckMsgContent(pMsg) != 0) return -1;
  if (mndCheckMnodeState(pMsg) != 0) return -1;

-  STraceId *trace = &pMsg->info.traceId;
  mGTrace("msg:%p, start to process in mnode, app:%p type:%s", pMsg, pMsg->info.ahandle, TMSG_INFO(pMsg->msgType));
  int32_t code = (*fp)(pMsg);
  mndReleaseRpcRef(pMnode);

  if (code == TSDB_CODE_ACTION_IN_PROGRESS) {
-    mTrace("msg:%p, won't response immediately since in progress", pMsg);
+    mGTrace("msg:%p, won't response immediately since in progress", pMsg);
  } else if (code == 0) {
-    mTrace("msg:%p, successfully processed", pMsg);
+    mGTrace("msg:%p, successfully processed", pMsg);
  } else {
-    mError("msg:%p, failed to process since %s, app:%p type:%s", pMsg, terrstr(), pMsg->info.ahandle,
-           TMSG_INFO(pMsg->msgType));
+    mGError("msg:%p, failed to process since %s, app:%p type:%s", pMsg, terrstr(), pMsg->info.ahandle,
+            TMSG_INFO(pMsg->msgType));
  }

  return code;
@ -618,7 +632,6 @@ void mndSetMsgHandle(SMnode *pMnode, tmsg_t msgType, MndMsgFp fp) {
 // Note: uid 0 is reserved
 int64_t mndGenerateUid(char *name, int32_t len) {
  int32_t hashval = MurmurHash3_32(name, len);
-
  do {
    int64_t us = taosGetTimestampUs();
    int64_t x = (us & 0x000000FFFFFFFFFF) << 24;
@ -633,7 +646,7 @@ int32_t mndGetMonitorInfo(SMnode *pMnode, SMonClusterInfo *pClusterInfo, SMonVgr
                          SMonGrantInfo *pGrantInfo) {
  if (mndAcquireRpcRef(pMnode) != 0) return -1;

-  SSdb *  pSdb = pMnode->pSdb;
+  SSdb   *pSdb = pMnode->pSdb;
  int64_t ms = taosGetTimestampMs();

  pClusterInfo->dnodes = taosArrayInit(sdbGetSize(pSdb, SDB_DNODE), sizeof(SMonDnodeDesc));
@ -709,7 +722,7 @@ int32_t mndGetMonitorInfo(SMnode *pMnode, SMonClusterInfo *pClusterInfo, SMonVgr
    pGrantInfo->timeseries_used += pVgroup->numOfTimeSeries;
    tstrncpy(desc.status, "unsynced", sizeof(desc.status));
    for (int32_t i = 0; i < pVgroup->replica; ++i) {
-      SVnodeGid *    pVgid = &pVgroup->vnodeGid[i];
+      SVnodeGid     *pVgid = &pVgroup->vnodeGid[i];
      SMonVnodeDesc *pVnDesc = &desc.vnodes[i];
      pVnDesc->dnode_id = pVgid->dnodeId;
      tstrncpy(pVnDesc->vnode_role, syncStr(pVgid->role), sizeof(pVnDesc->vnode_role));
--- a/source/dnode/mnode/impl/src/mndPerfSchema.c
+++ b/source/dnode/mnode/impl/src/mndPerfSchema.c
@ -92,6 +92,37 @@ int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char
  return 0;
 }

+int32_t mndBuildPerfsTableCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp) {
+  if (NULL == pMnode->perfsMeta) {
+    terrno = TSDB_CODE_MND_NOT_READY;
+    return -1;
+  }
+
+  STableMetaRsp *pMeta = taosHashGet(pMnode->perfsMeta, tbName, strlen(tbName));
+  if (NULL == pMeta) {
+    mError("invalid performance schema table name:%s", tbName);
+    terrno = TSDB_CODE_MND_INVALID_SYS_TABLENAME;
+    return -1;
+  }
+
+  strcpy(pRsp->tbName, pMeta->tbName);
+  strcpy(pRsp->stbName, pMeta->stbName);
+  strcpy(pRsp->dbFName, pMeta->dbFName);
+  pRsp->numOfTags = pMeta->numOfTags;
+  pRsp->numOfColumns = pMeta->numOfColumns;
+  pRsp->tableType = pMeta->tableType;
+
+  pRsp->pSchemas = taosMemoryCalloc(pMeta->numOfColumns, sizeof(SSchema));
+  if (pRsp->pSchemas == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    pRsp->pSchemas = NULL;
+    return -1;
+  }
+
+  memcpy(pRsp->pSchemas, pMeta->pSchemas, pMeta->numOfColumns * sizeof(SSchema));
+  return 0;
+}
+
 int32_t mndInitPerfs(SMnode *pMnode) {
  pMnode->perfsMeta = taosHashInit(20, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
  if (pMnode->perfsMeta == NULL) {
--- a/source/dnode/mnode/impl/src/mndProfile.c
+++ b/source/dnode/mnode/impl/src/mndProfile.c
@ -122,30 +122,33 @@ static SConnObj *mndCreateConn(SMnode *pMnode, const char *user, int8_t connType
                               int32_t pid, const char *app, int64_t startTime) {
  SProfileMgmt *pMgmt = &pMnode->profileMgmt;

-  char    connStr[255] = {0};
-  int32_t len = snprintf(connStr, sizeof(connStr), "%s%d%d%d%s", user, ip, port, pid, app);
+  char     connStr[255] = {0};
+  int32_t  len = snprintf(connStr, sizeof(connStr), "%s%d%d%d%s", user, ip, port, pid, app);
  uint32_t connId = mndGenerateUid(connStr, len);
  if (startTime == 0) startTime = taosGetTimestampMs();

-  SConnObj connObj = {.id = connId,
-                      .connType = connType,
-                      .appStartTimeMs = startTime,
-                      .pid = pid,
-                      .ip = ip,
-                      .port = port,
-                      .killed = 0,
-                      .loginTimeMs = taosGetTimestampMs(),
-                      .lastAccessTimeMs = 0,
-                      .killId = 0,
-                      .numOfQueries = 0,
-                      .pQueries = NULL};
+  SConnObj connObj = {
+      .id = connId,
+      .connType = connType,
+      .appStartTimeMs = startTime,
+      .pid = pid,
+      .ip = ip,
+      .port = port,
+      .killed = 0,
+      .loginTimeMs = taosGetTimestampMs(),
+      .lastAccessTimeMs = 0,
+      .killId = 0,
+      .numOfQueries = 0,
+      .pQueries = NULL,
+  };

  connObj.lastAccessTimeMs = connObj.loginTimeMs;
  tstrncpy(connObj.user, user, TSDB_USER_LEN);
  tstrncpy(connObj.app, app, TSDB_APP_NAME_LEN);

  int32_t   keepTime = tsShellActivityTimer * 3;
-  SConnObj *pConn = taosCachePut(pMgmt->connCache, &connId, sizeof(uint32_t), &connObj, sizeof(connObj), keepTime * 1000);
+  SConnObj *pConn =
+      taosCachePut(pMgmt->connCache, &connId, sizeof(uint32_t), &connObj, sizeof(connObj), keepTime * 1000);
  if (pConn == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    mError("conn:%d, failed to put into cache since %s, user:%s", connId, user, terrstr());
@ -174,7 +177,6 @@ static SConnObj *mndAcquireConn(SMnode *pMnode, uint32_t connId) {
  }

  pConn->lastAccessTimeMs = taosGetTimestampMs();
-
  mTrace("conn:%u, acquired from cache, data:%p", pConn->id, pConn);
  return pConn;
 }
@ -207,13 +209,14 @@ static void mndCancelGetNextConn(SMnode *pMnode, void *pIter) {
 }

 static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
-  SMnode     *pMnode = pReq->info.node;
-  SUserObj   *pUser = NULL;
-  SDbObj     *pDb = NULL;
-  SConnObj   *pConn = NULL;
-  int32_t     code = -1;
-  SConnectReq connReq = {0};
-  char        ip[30] = {0};
+  SMnode         *pMnode = pReq->info.node;
+  SUserObj       *pUser = NULL;
+  SDbObj         *pDb = NULL;
+  SConnObj       *pConn = NULL;
+  int32_t         code = -1;
+  SConnectReq     connReq = {0};
+  char            ip[30] = {0};
+  const STraceId *trace = &pReq->info.traceId;

  if (tDeserializeSConnectReq(pReq->pCont, pReq->contLen, &connReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
@ -224,11 +227,11 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {

  pUser = mndAcquireUser(pMnode, pReq->info.conn.user);
  if (pUser == NULL) {
-    mError("user:%s, failed to login while acquire user since %s", pReq->info.conn.user, terrstr());
+    mGError("user:%s, failed to login while acquire user since %s", pReq->info.conn.user, terrstr());
    goto CONN_OVER;
  }
  if (0 != strncmp(connReq.passwd, pUser->pass, TSDB_PASSWORD_LEN - 1)) {
-    mError("user:%s, failed to auth while acquire user, input:%s", pReq->info.conn.user, connReq.passwd);
+    mGError("user:%s, failed to auth while acquire user, input:%s", pReq->info.conn.user, connReq.passwd);
    code = TSDB_CODE_RPC_AUTH_FAILURE;
    goto CONN_OVER;
  }
@ -239,8 +242,8 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
    pDb = mndAcquireDb(pMnode, db);
    if (pDb == NULL) {
      terrno = TSDB_CODE_MND_INVALID_DB;
-      mError("user:%s, failed to login from %s while use db:%s since %s", pReq->info.conn.user, ip, connReq.db,
-             terrstr());
+      mGError("user:%s, failed to login from %s while use db:%s since %s", pReq->info.conn.user, ip, connReq.db,
+              terrstr());
      goto CONN_OVER;
    }
  }
@ -248,7 +251,7 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
  pConn = mndCreateConn(pMnode, pReq->info.conn.user, connReq.connType, pReq->info.conn.clientIp,
                        pReq->info.conn.clientPort, connReq.pid, connReq.app, connReq.startTime);
  if (pConn == NULL) {
-    mError("user:%s, failed to login from %s while create connection since %s", pReq->info.conn.user, ip, terrstr());
+    mGError("user:%s, failed to login from %s while create connection since %s", pReq->info.conn.user, ip, terrstr());
    goto CONN_OVER;
  }

@ -273,7 +276,7 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
  pReq->info.rspLen = contLen;
  pReq->info.rsp = pRsp;

-  mDebug("user:%s, login from %s:%d, conn:%u, app:%s", pReq->info.conn.user, ip, pConn->port, pConn->id, connReq.app);
+  mGDebug("user:%s, login from %s:%d, conn:%u, app:%s", pReq->info.conn.user, ip, pConn->port, pConn->id, connReq.app);

  code = 0;

@ -302,7 +305,7 @@ static int32_t mndSaveQueryList(SConnObj *pConn, SQueryHbReqBasic *pBasic) {
  return TSDB_CODE_SUCCESS;
 }

-static SAppObj *mndCreateApp(SMnode *pMnode, uint32_t clientIp, SAppHbReq* pReq) {
+static SAppObj *mndCreateApp(SMnode *pMnode, uint32_t clientIp, SAppHbReq *pReq) {
  SProfileMgmt *pMgmt = &pMnode->profileMgmt;

  SAppObj app;
@ -314,22 +317,19 @@ static SAppObj *mndCreateApp(SMnode *pMnode, uint32_t clientIp, SAppHbReq* pReq)
  memcpy(&app.summary, &pReq->summary, sizeof(pReq->summary));
  app.lastAccessTimeMs = taosGetTimestampMs();

-  int32_t   keepTime = tsShellActivityTimer * 3;
+  const int32_t keepTime = tsShellActivityTimer * 3;
  SAppObj *pApp = taosCachePut(pMgmt->appCache, &pReq->appId, sizeof(pReq->appId), &app, sizeof(app), keepTime * 1000);
  if (pApp == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    mError("failed to app %" PRIx64 " into cache since %s", pReq->appId, terrstr());
    return NULL;
  }
-  
+
  mTrace("app %" PRIx64 " is put into cache", pReq->appId);
  return pApp;
 }

-static void mndFreeApp(SAppObj *pApp) {
-  mTrace("app %" PRIx64 " is destroyed", pApp->appId);
-}
-
+static void mndFreeApp(SAppObj *pApp) { mTrace("app %" PRIx64 " is destroyed", pApp->appId); }

 static SAppObj *mndAcquireApp(SMnode *pMnode, int64_t appId) {
  SProfileMgmt *pMgmt = &pMnode->profileMgmt;
@ -356,7 +356,7 @@ static void mndReleaseApp(SMnode *pMnode, SAppObj *pApp) {

 void *mndGetNextApp(SMnode *pMnode, SCacheIter *pIter) {
  SAppObj *pApp = NULL;
-  bool      hasNext = taosCacheIterNext(pIter);
+  bool     hasNext = taosCacheIterNext(pIter);
  if (hasNext) {
    size_t dataLen = 0;
    pApp = taosCacheIterGetData(pIter, &dataLen);
@ -439,8 +439,8 @@ static SClientHbRsp *mndMqHbBuildRsp(SMnode *pMnode, SClientHbReq *pReq) {
 }

 static int32_t mndUpdateAppInfo(SMnode *pMnode, SClientHbReq *pHbReq, SRpcConnInfo *connInfo) {
-  SAppHbReq* pReq = &pHbReq->app;
-  SAppObj *pApp = mndAcquireApp(pMnode, pReq->appId);
+  SAppHbReq *pReq = &pHbReq->app;
+  SAppObj   *pApp = mndAcquireApp(pMnode, pReq->appId);
  if (pApp == NULL) {
    pApp = mndCreateApp(pMnode, connInfo->clientIp, pReq);
    if (pApp == NULL) {
@ -448,7 +448,7 @@ static int32_t mndUpdateAppInfo(SMnode *pMnode, SClientHbReq *pHbReq, SRpcConnIn
      return -1;
    } else {
      mDebug("a new app %" PRIx64 "created", pReq->appId);
-      mndReleaseApp(pMnode, pApp);      
+      mndReleaseApp(pMnode, pApp);
      return TSDB_CODE_SUCCESS;
    }
  }
@ -464,7 +464,7 @@ static int32_t mndProcessQueryHeartBeat(SMnode *pMnode, SRpcMsg *pMsg, SClientHb
                                        SClientHbBatchRsp *pBatchRsp) {
  SProfileMgmt *pMgmt = &pMnode->profileMgmt;
  SClientHbRsp  hbRsp = {.connKey = pHbReq->connKey, .status = 0, .info = NULL, .query = NULL};
-  SRpcConnInfo connInfo = pMsg->info.conn;
+  SRpcConnInfo  connInfo = pMsg->info.conn;

  mndUpdateAppInfo(pMnode, pHbReq, &connInfo);

@ -637,9 +637,9 @@ static int32_t mndProcessKillQueryReq(SRpcMsg *pReq) {
  }

  mInfo("kill query msg is received, queryId:%s", killReq.queryStrId);
-  int32_t connId = 0;
+  int32_t  connId = 0;
  uint64_t queryId = 0;
-  char* p = strchr(killReq.queryStrId, ':');
+  char    *p = strchr(killReq.queryStrId, ':');
  if (NULL == p) {
    mError("invalid query id %s", killReq.queryStrId);
    terrno = TSDB_CODE_MND_INVALID_QUERY_ID;
@ -853,12 +853,12 @@ static int32_t mndRetrieveQueries(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *p
 }

 static int32_t mndRetrieveApps(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
-  SMnode    *pMnode = pReq->info.node;
-  SSdb      *pSdb = pMnode->pSdb;
-  int32_t    numOfRows = 0;
-  int32_t    cols = 0;
-  SAppObj   *pApp = NULL;
-  
+  SMnode  *pMnode = pReq->info.node;
+  SSdb    *pSdb = pMnode->pSdb;
+  int32_t  numOfRows = 0;
+  int32_t  cols = 0;
+  SAppObj *pApp = NULL;
+
  if (pShow->pIter == NULL) {
    SProfileMgmt *pMgmt = &pMnode->profileMgmt;
    pShow->pIter = taosCacheCreateIter(pMgmt->appCache);
@ -931,7 +931,6 @@ static int32_t mndRetrieveApps(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlo
  return numOfRows;
 }

-
 static void mndCancelGetNextQuery(SMnode *pMnode, void *pIter) {
  if (pIter != NULL) {
    taosCacheDestroyIter(pIter);
--- a/source/dnode/mnode/impl/src/mndQuery.c
+++ b/source/dnode/mnode/impl/src/mndQuery.c
@ -18,16 +18,14 @@
 #include "mndMnode.h"
 #include "qworker.h"

-int32_t mndPreProcessMsg(SRpcMsg *pMsg) {
+int32_t mndPreProcessQueryMsg(SRpcMsg *pMsg) {
  if (TDMT_VND_QUERY != pMsg->msgType) return 0;
-
  SMnode *pMnode = pMsg->info.node;
  return qWorkerPreprocessQueryMsg(pMnode->pQuery, pMsg);
 }

-void mndAbortPreprocessMsg(SRpcMsg *pMsg) {
+void mndPostProcessQueryMsg(SRpcMsg *pMsg) {
  if (TDMT_VND_QUERY != pMsg->msgType) return;
-
  SMnode *pMnode = pMsg->info.node;
  qWorkerAbortPreprocessQueryMsg(pMnode->pQuery, pMsg);
 }
--- a/source/dnode/mnode/impl/src/mndScheduler.c
+++ b/source/dnode/mnode/impl/src/mndScheduler.c
@ -33,7 +33,7 @@
 #include "tname.h"
 #include "tuuid.h"

-extern bool tsStreamSchedV;
+extern bool tsSchedStreamToSnode;

 static int32_t mndAddTaskToTaskSet(SArray* pArray, SStreamTask* pTask) {
  int32_t childId = taosArrayGetSize(pArray);
@ -43,7 +43,7 @@ static int32_t mndAddTaskToTaskSet(SArray* pArray, SStreamTask* pTask) {
 }

 int32_t mndConvertRsmaTask(char** pDst, int32_t* pDstLen, const char* ast, int64_t uid, int8_t triggerType,
-                           int64_t watermark, double filesFactor) {
+                           int64_t watermark) {
  SNode*      pAst = NULL;
  SQueryPlan* pPlan = NULL;
  terrno = TSDB_CODE_SUCCESS;
@ -204,9 +204,11 @@ int32_t mndAssignTaskToVg(SMnode* pMnode, STrans* pTrans, SStreamTask* pTask, SS
  return 0;
 }

-SSnodeObj* mndSchedFetchSnode(SMnode* pMnode) {
+SSnodeObj* mndSchedFetchOneSnode(SMnode* pMnode) {
  SSnodeObj* pObj = NULL;
-  pObj = sdbFetch(pMnode->pSdb, SDB_SNODE, NULL, (void**)&pObj);
+  void*      pIter = NULL;
+  // TODO random fetch
+  pIter = sdbFetch(pMnode->pSdb, SDB_SNODE, pIter, (void**)&pObj);
  return pObj;
 }

@ -214,7 +216,7 @@ int32_t mndAssignTaskToSnode(SMnode* pMnode, STrans* pTrans, SStreamTask* pTask,
                             const SSnodeObj* pSnode) {
  int32_t msgLen;

-  pTask->nodeId = 0;
+  pTask->nodeId = SNODE_HANDLE;
  pTask->epSet = mndAcquireEpFromSnode(pMnode, pSnode);

  plan->execNode.nodeId = 0;
@ -224,7 +226,7 @@ int32_t mndAssignTaskToSnode(SMnode* pMnode, STrans* pTrans, SStreamTask* pTask,
    terrno = TSDB_CODE_QRY_INVALID_INPUT;
    return -1;
  }
-  mndPersistTaskDeployReq(pTrans, pTask, &plan->execNode.epSet, TDMT_STREAM_TASK_DEPLOY, 0);
+  mndPersistTaskDeployReq(pTrans, pTask, &plan->execNode.epSet, TDMT_STREAM_TASK_DEPLOY, SNODE_HANDLE);
  return 0;
 }

@ -370,8 +372,8 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
  }

  if (totLevel > 1) {
-    SStreamTask* pFinalTask;
-    // inner plan
+    SStreamTask* pInnerTask;
+    // inner level
    {
      SArray* taskInnerLevel = taosArrayInit(0, sizeof(void*));
      taosArrayPush(pStream->tasks, &taskInnerLevel);
@ -380,31 +382,51 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
      SSubplan*      plan = (SSubplan*)nodesListGetNode(inner->pNodeList, 0);
      ASSERT(plan->subplanType == SUBPLAN_TYPE_MERGE);

-      pFinalTask = tNewSStreamTask(pStream->uid);
-      mndAddTaskToTaskSet(taskInnerLevel, pFinalTask);
+      pInnerTask = tNewSStreamTask(pStream->uid);
+      mndAddTaskToTaskSet(taskInnerLevel, pInnerTask);
      // input
-      pFinalTask->inputType = TASK_INPUT_TYPE__DATA_BLOCK;
+      pInnerTask->inputType = TASK_INPUT_TYPE__DATA_BLOCK;

      // trigger
-      pFinalTask->triggerParam = pStream->triggerParam;
+      pInnerTask->triggerParam = pStream->triggerParam;

      // dispatch
-      if (mndAddDispatcherToInnerTask(pMnode, pTrans, pStream, pFinalTask) < 0) {
+      if (mndAddDispatcherToInnerTask(pMnode, pTrans, pStream, pInnerTask) < 0) {
        qDestroyQueryPlan(pPlan);
        return -1;
      }

      // exec
-      pFinalTask->execType = TASK_EXEC__PIPE;
-      SVgObj* pVgroup = mndSchedFetchOneVg(pMnode, pStream->sourceDbUid);
-      if (mndAssignTaskToVg(pMnode, pTrans, pFinalTask, plan, pVgroup) < 0) {
-        sdbRelease(pSdb, pVgroup);
-        qDestroyQueryPlan(pPlan);
-        return -1;
+      pInnerTask->execType = TASK_EXEC__PIPE;
+
+      if (tsSchedStreamToSnode) {
+        SSnodeObj* pSnode = mndSchedFetchOneSnode(pMnode);
+        if (pSnode == NULL) {
+          SVgObj* pVgroup = mndSchedFetchOneVg(pMnode, pStream->sourceDbUid);
+          if (mndAssignTaskToVg(pMnode, pTrans, pInnerTask, plan, pVgroup) < 0) {
+            sdbRelease(pSdb, pVgroup);
+            qDestroyQueryPlan(pPlan);
+            return -1;
+          }
+        } else {
+          if (mndAssignTaskToSnode(pMnode, pTrans, pInnerTask, plan, pSnode) < 0) {
+            ASSERT(0);
+            sdbRelease(pSdb, pSnode);
+            qDestroyQueryPlan(pPlan);
+            return -1;
+          }
+        }
+      } else {
+        SVgObj* pVgroup = mndSchedFetchOneVg(pMnode, pStream->sourceDbUid);
+        if (mndAssignTaskToVg(pMnode, pTrans, pInnerTask, plan, pVgroup) < 0) {
+          sdbRelease(pSdb, pVgroup);
+          qDestroyQueryPlan(pPlan);
+          return -1;
+        }
      }
    }

-    // source plan
+    // source level
    SArray* taskSourceLevel = taosArrayInit(0, sizeof(void*));
    taosArrayPush(pStream->tasks, &taskSourceLevel);

@ -434,9 +456,9 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
      pTask->dispatchMsgType = TDMT_STREAM_TASK_DISPATCH;
      pTask->dispatchType = TASK_DISPATCH__FIXED;

-      pTask->fixedEpDispatcher.taskId = pFinalTask->taskId;
-      pTask->fixedEpDispatcher.nodeId = pFinalTask->nodeId;
-      pTask->fixedEpDispatcher.epSet = pFinalTask->epSet;
+      pTask->fixedEpDispatcher.taskId = pInnerTask->taskId;
+      pTask->fixedEpDispatcher.nodeId = pInnerTask->nodeId;
+      pTask->fixedEpDispatcher.epSet = pInnerTask->epSet;

      // exec
      pTask->execType = TASK_EXEC__PIPE;
@ -474,6 +496,9 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
      // input
      pTask->inputType = TASK_INPUT_TYPE__SUMBIT_BLOCK;

+      // trigger
+      pTask->triggerParam = pStream->triggerParam;
+
      // sink or dispatch
      if (hasExtraSink) {
        mndAddDispatcherToInnerTask(pMnode, pTrans, pStream, pTask);
--- a/source/dnode/mnode/impl/src/mndSnode.c
+++ b/source/dnode/mnode/impl/src/mndSnode.c
@ -408,6 +408,7 @@ static int32_t mndProcessDropSnodeReq(SRpcMsg *pReq) {
    goto _OVER;
  }

+  // check deletable
  code = mndDropSnode(pMnode, pReq, pObj);
  if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;

--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@ -43,6 +43,7 @@ static int32_t  mndProcessDropStbReq(SRpcMsg *pReq);
 static int32_t  mndProcessTableMetaReq(SRpcMsg *pReq);
 static int32_t  mndRetrieveStb(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
 static void     mndCancelGetNextStb(SMnode *pMnode, void *pIter);
+static int32_t  mndProcessTableCfgReq(SRpcMsg *pReq);

 int32_t mndInitStb(SMnode *pMnode) {
  SSdbTable table = {
@ -62,6 +63,7 @@ int32_t mndInitStb(SMnode *pMnode) {
  mndSetMsgHandle(pMnode, TDMT_VND_ALTER_STB_RSP, mndTransProcessRsp);
  mndSetMsgHandle(pMnode, TDMT_VND_DROP_STB_RSP, mndTransProcessRsp);
  mndSetMsgHandle(pMnode, TDMT_MND_TABLE_META, mndProcessTableMetaReq);
+  mndSetMsgHandle(pMnode, TDMT_MND_TABLE_CFG, mndProcessTableCfgReq);

  mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_STB, mndRetrieveStb);
  mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_STB, mndCancelGetNextStb);
@ -75,7 +77,7 @@ SSdbRaw *mndStbActionEncode(SStbObj *pStb) {
  terrno = TSDB_CODE_OUT_OF_MEMORY;

  int32_t size = sizeof(SStbObj) + (pStb->numOfColumns + pStb->numOfTags) * sizeof(SSchema) + +pStb->commentLen +
-                 pStb->ast1Len + pStb->ast2Len + STB_RESERVE_SIZE;
+                 pStb->ast1Len + pStb->ast2Len + STB_RESERVE_SIZE + taosArrayGetSize(pStb->pFuncs) * TSDB_FUNC_NAME_LEN;
  SSdbRaw *pRaw = sdbAllocRaw(SDB_STB, STB_VER_NUMBER, size);
  if (pRaw == NULL) goto _OVER;

@ -89,8 +91,10 @@ SSdbRaw *mndStbActionEncode(SStbObj *pStb) {
  SDB_SET_INT32(pRaw, dataPos, pStb->tagVer, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->colVer, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->nextColId, _OVER)
-  SDB_SET_INT32(pRaw, dataPos, (int32_t)(pStb->xFilesFactor * 10000), _OVER)
-  SDB_SET_INT32(pRaw, dataPos, pStb->delay, _OVER)
+  SDB_SET_INT64(pRaw, dataPos, pStb->maxdelay[0], _OVER)
+  SDB_SET_INT64(pRaw, dataPos, pStb->maxdelay[1], _OVER)
+  SDB_SET_INT64(pRaw, dataPos, pStb->watermark[0], _OVER)
+  SDB_SET_INT64(pRaw, dataPos, pStb->watermark[1], _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->ttl, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->numOfColumns, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->numOfTags, _OVER)
@ -98,6 +102,13 @@ SSdbRaw *mndStbActionEncode(SStbObj *pStb) {
  SDB_SET_INT32(pRaw, dataPos, pStb->ast1Len, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->ast2Len, _OVER)

+  int32_t funcNum = taosArrayGetSize(pStb->pFuncs);
+  SDB_SET_INT32(pRaw, dataPos, funcNum, _OVER)
+  for (int32_t i = 0; i < funcNum; ++i) {
+    char* func = taosArrayGet(pStb->pFuncs, i);
+    SDB_SET_BINARY(pRaw, dataPos, func, TSDB_FUNC_NAME_LEN, _OVER)
+  }
+
  for (int32_t i = 0; i < pStb->numOfColumns; ++i) {
    SSchema *pSchema = &pStb->pColumns[i];
    SDB_SET_INT8(pRaw, dataPos, pSchema->type, _OVER)
@ -168,10 +179,10 @@ static SSdbRow *mndStbActionDecode(SSdbRaw *pRaw) {
  SDB_GET_INT32(pRaw, dataPos, &pStb->tagVer, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->colVer, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->nextColId, _OVER)
-  int32_t xFilesFactor = 0;
-  SDB_GET_INT32(pRaw, dataPos, &xFilesFactor, _OVER)
-  pStb->xFilesFactor = xFilesFactor / 10000.0f;
-  SDB_GET_INT32(pRaw, dataPos, &pStb->delay, _OVER)
+  SDB_GET_INT64(pRaw, dataPos, &pStb->maxdelay[0], _OVER)
+  SDB_GET_INT64(pRaw, dataPos, &pStb->maxdelay[1], _OVER)
+  SDB_GET_INT64(pRaw, dataPos, &pStb->watermark[0], _OVER)
+  SDB_GET_INT64(pRaw, dataPos, &pStb->watermark[1], _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->ttl, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->numOfColumns, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->numOfTags, _OVER)
@ -179,6 +190,20 @@ static SSdbRow *mndStbActionDecode(SSdbRaw *pRaw) {
  SDB_GET_INT32(pRaw, dataPos, &pStb->ast1Len, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->ast2Len, _OVER)

+  int32_t funcNum = 0;
+  SDB_GET_INT32(pRaw, dataPos, &funcNum, _OVER)
+  if (funcNum > 0) {
+    pStb->pFuncs = taosArrayInit(funcNum, TSDB_FUNC_NAME_LEN);
+    if (NULL == pStb->pFuncs) {
+      goto _OVER;
+    }
+    char funcName[TSDB_FUNC_NAME_LEN];
+    for (int32_t i = 0; i < funcNum; ++i) {
+      SDB_GET_BINARY(pRaw, dataPos, funcName, TSDB_FUNC_NAME_LEN, _OVER)
+      taosArrayPush(pStb->pFuncs, funcName);
+    }
+  }
+
  pStb->pColumns = taosMemoryCalloc(pStb->numOfColumns, sizeof(SSchema));
  pStb->pTags = taosMemoryCalloc(pStb->numOfTags, sizeof(SSchema));
  if (pStb->pColumns == NULL || pStb->pTags == NULL) {
@ -248,6 +273,7 @@ static int32_t mndStbActionDelete(SSdb *pSdb, SStbObj *pStb) {
  taosMemoryFreeClear(pStb->comment);
  taosMemoryFreeClear(pStb->pAst1);
  taosMemoryFreeClear(pStb->pAst2);
+  taosArrayDestroy(pStb->pFuncs);
  return 0;
 }

@ -399,18 +425,18 @@ static void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pSt
  req.schemaTag.pSchema = pStb->pTags;

  if (req.rollup) {
-    req.pRSmaParam.xFilesFactor = pStb->xFilesFactor;
-    req.pRSmaParam.delay = pStb->delay;
+    req.pRSmaParam.maxdelay[0] = pStb->maxdelay[0];
+    req.pRSmaParam.maxdelay[1] = pStb->maxdelay[1];
    if (pStb->ast1Len > 0) {
-      if (mndConvertRsmaTask(&req.pRSmaParam.qmsg1, &req.pRSmaParam.qmsg1Len, pStb->pAst1, pStb->uid,
-                             STREAM_TRIGGER_WINDOW_CLOSE, 0, req.pRSmaParam.xFilesFactor) != TSDB_CODE_SUCCESS) {
-        return NULL;
+      if (mndConvertRsmaTask(&req.pRSmaParam.qmsg[0], &req.pRSmaParam.qmsgLen[0], pStb->pAst1, pStb->uid,
+                             STREAM_TRIGGER_WINDOW_CLOSE, req.pRSmaParam.watermark[0]) < 0) {
+        goto _err;
      }
    }
    if (pStb->ast2Len > 0) {
-      if (mndConvertRsmaTask(&req.pRSmaParam.qmsg2, &req.pRSmaParam.qmsg2Len, pStb->pAst2, pStb->uid,
-                             STREAM_TRIGGER_WINDOW_CLOSE, 0, req.pRSmaParam.xFilesFactor) != TSDB_CODE_SUCCESS) {
-        return NULL;
+      if (mndConvertRsmaTask(&req.pRSmaParam.qmsg[1], &req.pRSmaParam.qmsgLen[1], pStb->pAst2, pStb->uid,
+                             STREAM_TRIGGER_WINDOW_CLOSE, req.pRSmaParam.watermark[1]) < 0) {
+        goto _err;
      }
    }
  }
@ -418,17 +444,15 @@ static void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pSt
  int32_t ret = 0;
  tEncodeSize(tEncodeSVCreateStbReq, &req, contLen, ret);
  if (ret < 0) {
-    return NULL;
+    goto _err;
  }

  contLen += sizeof(SMsgHead);

  SMsgHead *pHead = taosMemoryMalloc(contLen);
  if (pHead == NULL) {
-    taosMemoryFreeClear(req.pRSmaParam.qmsg1);
-    taosMemoryFreeClear(req.pRSmaParam.qmsg2);
    terrno = TSDB_CODE_OUT_OF_MEMORY;
-    return NULL;
+    goto _err;
  }

  pHead->contLen = htonl(contLen);
@ -438,17 +462,19 @@ static void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pSt
  tEncoderInit(&encoder, pBuf, contLen - sizeof(SMsgHead));
  if (tEncodeSVCreateStbReq(&encoder, &req) < 0) {
    taosMemoryFreeClear(pHead);
-    taosMemoryFreeClear(req.pRSmaParam.qmsg1);
-    taosMemoryFreeClear(req.pRSmaParam.qmsg2);
    tEncoderClear(&encoder);
-    return NULL;
+    goto _err;
  }
  tEncoderClear(&encoder);

  *pContLen = contLen;
-  taosMemoryFreeClear(req.pRSmaParam.qmsg1);
-  taosMemoryFreeClear(req.pRSmaParam.qmsg2);
+  taosMemoryFreeClear(req.pRSmaParam.qmsg[0]);
+  taosMemoryFreeClear(req.pRSmaParam.qmsg[1]);
  return pHead;
+_err:
+  taosMemoryFreeClear(req.pRSmaParam.qmsg[0]);
+  taosMemoryFreeClear(req.pRSmaParam.qmsg[1]);
+  return NULL;
 }

 static void *mndBuildVDropStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pStb, int32_t *pContLen) {
@ -670,12 +696,17 @@ int32_t mndBuildStbFromReq(SMnode *pMnode, SStbObj *pDst, SMCreateStbReq *pCreat
  pDst->tagVer = 1;
  pDst->colVer = 1;
  pDst->nextColId = 1;
-  // pDst->xFilesFactor = pCreate->xFilesFactor;
-  // pDst->delay = pCreate->delay;
+  pDst->maxdelay[0] = pCreate->delay1;
+  pDst->maxdelay[1] = pCreate->delay2;
+  pDst->watermark[0] = pCreate->watermark1;
+  pDst->watermark[1] = pCreate->watermark2;
  pDst->ttl = pCreate->ttl;
  pDst->numOfColumns = pCreate->numOfColumns;
  pDst->numOfTags = pCreate->numOfTags;
  pDst->commentLen = pCreate->commentLen;
+  pDst->pFuncs = pCreate->pFuncs;
+  pCreate->pFuncs = NULL;
+  
  if (pDst->commentLen > 0) {
    pDst->comment = taosMemoryCalloc(pDst->commentLen + 1, 1);
    if (pDst->comment == NULL) {
@ -897,7 +928,7 @@ static int32_t mndUpdateStbCommentAndTTL(const SStbObj *pOld, SStbObj *pNew, cha
      return -1;
    }
    memcpy(pNew->comment, pComment, commentLen + 1);
-  } else if(commentLen == 0){
+  } else if (commentLen == 0) {
    pNew->commentLen = 0;
  }

@ -1273,6 +1304,60 @@ static int32_t mndBuildStbSchemaImp(SDbObj *pDb, SStbObj *pStb, const char *tbNa
  return 0;
 }

+static int32_t mndBuildStbCfgImp(SDbObj *pDb, SStbObj *pStb, const char *tbName, STableCfgRsp *pRsp) {
+  taosRLockLatch(&pStb->lock);
+
+  int32_t totalCols = pStb->numOfColumns + pStb->numOfTags;
+  pRsp->pSchemas = taosMemoryCalloc(totalCols, sizeof(SSchema));
+  if (pRsp->pSchemas == NULL) {
+    taosRUnLockLatch(&pStb->lock);
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  strcpy(pRsp->dbFName, pStb->db);
+  strcpy(pRsp->tbName, tbName);
+  strcpy(pRsp->stbName, tbName);
+  pRsp->numOfTags = pStb->numOfTags;
+  pRsp->numOfColumns = pStb->numOfColumns;
+  pRsp->tableType = TSDB_SUPER_TABLE;
+  pRsp->delay1 = pStb->maxdelay[0];
+  pRsp->delay2 = pStb->maxdelay[1];
+  pRsp->watermark1 = pStb->watermark[0];
+  pRsp->watermark2 = pStb->watermark[1];
+  pRsp->ttl = pStb->ttl;
+  pRsp->commentLen = pStb->commentLen;
+  if (pStb->commentLen > 0) {
+    pRsp->pComment = strdup(pStb->comment);
+  }
+
+  for (int32_t i = 0; i < pStb->numOfColumns; ++i) {
+    SSchema *pSchema = &pRsp->pSchemas[i];
+    SSchema *pSrcSchema = &pStb->pColumns[i];
+    memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
+    pSchema->type = pSrcSchema->type;
+    pSchema->colId = pSrcSchema->colId;
+    pSchema->bytes = pSrcSchema->bytes;
+  }
+
+  for (int32_t i = 0; i < pStb->numOfTags; ++i) {
+    SSchema *pSchema = &pRsp->pSchemas[i + pStb->numOfColumns];
+    SSchema *pSrcSchema = &pStb->pTags[i];
+    memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
+    pSchema->type = pSrcSchema->type;
+    pSchema->colId = pSrcSchema->colId;
+    pSchema->bytes = pSrcSchema->bytes;
+  }
+
+  if (pStb->pFuncs) {
+    pRsp->pFuncs = taosArrayDup(pStb->pFuncs);
+  }
+  
+  taosRUnLockLatch(&pStb->lock);
+  return 0;
+}
+
+
 static int32_t mndBuildStbSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp,
                                 int32_t *smaVer) {
  char tbFName[TSDB_TABLE_FNAME_LEN] = {0};
@ -1301,6 +1386,32 @@ static int32_t mndBuildStbSchema(SMnode *pMnode, const char *dbFName, const char
  return code;
 }

+static int32_t mndBuildStbCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp) {
+ char tbFName[TSDB_TABLE_FNAME_LEN] = {0};
+ snprintf(tbFName, sizeof(tbFName), "%s.%s", dbFName, tbName);
+
+ SDbObj *pDb = mndAcquireDb(pMnode, dbFName);
+ if (pDb == NULL) {
+   terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
+   return -1;
+ }
+
+ SStbObj *pStb = mndAcquireStb(pMnode, tbFName);
+ if (pStb == NULL) {
+   mndReleaseDb(pMnode, pDb);
+   terrno = TSDB_CODE_PAR_TABLE_NOT_EXIST;
+   return -1;
+ }
+
+ int32_t code = mndBuildStbCfgImp(pDb, pStb, tbName, pRsp);
+ 
+ mndReleaseDb(pMnode, pDb);
+ mndReleaseStb(pMnode, pStb);
+ return code;
+}
+
+
+
 static int32_t mndBuildSMAlterStbRsp(SDbObj *pDb, const SMAlterStbReq *pAlter, SStbObj *pObj, void **pCont,
                                     int32_t *pLen) {
  int32_t       ret;
@ -1660,6 +1771,63 @@ _OVER:
  return code;
 }

+static int32_t mndProcessTableCfgReq(SRpcMsg *pReq) {
+  SMnode       *pMnode = pReq->info.node;
+  int32_t       code = -1;
+  STableCfgReq  cfgReq = {0};
+  STableCfgRsp  cfgRsp = {0};
+
+  if (tDeserializeSTableCfgReq(pReq->pCont, pReq->contLen, &cfgReq) != 0) {
+    terrno = TSDB_CODE_INVALID_MSG;
+    goto _OVER;
+  }
+
+  if (0 == strcmp(cfgReq.dbFName, TSDB_INFORMATION_SCHEMA_DB)) {
+    mDebug("information_schema table:%s.%s, start to retrieve cfg", cfgReq.dbFName, cfgReq.tbName);
+    if (mndBuildInsTableCfg(pMnode, cfgReq.dbFName, cfgReq.tbName, &cfgRsp) != 0) {
+      goto _OVER;
+    }
+  } else if (0 == strcmp(cfgReq.dbFName, TSDB_PERFORMANCE_SCHEMA_DB)) {
+    mDebug("performance_schema table:%s.%s, start to retrieve cfg", cfgReq.dbFName, cfgReq.tbName);
+    if (mndBuildPerfsTableCfg(pMnode, cfgReq.dbFName, cfgReq.tbName, &cfgRsp) != 0) {
+      goto _OVER;
+    }
+  } else {
+    mDebug("stb:%s.%s, start to retrieve cfg", cfgReq.dbFName, cfgReq.tbName);
+    if (mndBuildStbCfg(pMnode, cfgReq.dbFName, cfgReq.tbName, &cfgRsp) != 0) {
+      goto _OVER;
+    }
+  }
+
+  int32_t rspLen = tSerializeSTableCfgRsp(NULL, 0, &cfgRsp);
+  if (rspLen < 0) {
+    terrno = TSDB_CODE_INVALID_MSG;
+    goto _OVER;
+  }
+
+  void *pRsp = rpcMallocCont(rspLen);
+  if (pRsp == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    goto _OVER;
+  }
+
+  tSerializeSTableCfgRsp(pRsp, rspLen, &cfgRsp);
+  pReq->info.rsp = pRsp;
+  pReq->info.rspLen = rspLen;
+  code = 0;
+
+  mTrace("%s.%s, cfg is retrieved", cfgReq.dbFName, cfgReq.tbName);
+
+_OVER:
+  if (code != 0) {
+    mError("stb:%s.%s, failed to retrieve cfg since %s", cfgReq.dbFName, cfgReq.tbName, terrstr());
+  }
+
+  tFreeSTableCfgRsp(&cfgRsp);
+  return code;
+}
+
+
 int32_t mndValidateStbInfo(SMnode *pMnode, SSTableVersion *pStbVersions, int32_t numOfStbs, void **ppRsp,
                           int32_t *pRspLen) {
  SSTbHbRsp hbRsp = {0};
@ -1849,7 +2017,7 @@ static int32_t mndRetrieveStb(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBloc
      char comment[TSDB_TB_COMMENT_LEN + VARSTR_HEADER_SIZE] = {0};
      STR_TO_VARSTR(comment, pStb->comment);
      colDataAppend(pColInfo, numOfRows, comment, false);
-    } else if(pStb->commentLen == 0) {
+    } else if (pStb->commentLen == 0) {
      char comment[VARSTR_HEADER_SIZE + VARSTR_HEADER_SIZE] = {0};
      STR_TO_VARSTR(comment, "");
      colDataAppend(pColInfo, numOfRows, comment, false);
--- a/source/dnode/mnode/impl/src/mndStream.c
+++ b/source/dnode/mnode/impl/src/mndStream.c
@ -54,9 +54,10 @@ int32_t mndInitStream(SMnode *pMnode) {
  };

  mndSetMsgHandle(pMnode, TDMT_MND_CREATE_STREAM, mndProcessCreateStreamReq);
-  mndSetMsgHandle(pMnode, TDMT_STREAM_TASK_DEPLOY_RSP, mndTransProcessRsp);
  mndSetMsgHandle(pMnode, TDMT_MND_DROP_STREAM, mndProcessDropStreamReq);
-  mndSetMsgHandle(pMnode, TDMT_MND_DROP_STREAM_RSP, mndTransProcessRsp);
+
+  mndSetMsgHandle(pMnode, TDMT_STREAM_TASK_DEPLOY_RSP, mndTransProcessRsp);
+  mndSetMsgHandle(pMnode, TDMT_STREAM_TASK_DROP_RSP, mndTransProcessRsp);

  mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_STREAMS, mndRetrieveStream);
  mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_STREAMS, mndCancelGetNextStream);
@ -477,7 +478,7 @@ static int32_t mndPersistTaskDropReq(STrans *pTrans, SStreamTask *pTask) {
  memcpy(&action.epSet, &pTask->epSet, sizeof(SEpSet));
  action.pCont = pReq;
  action.contLen = sizeof(SVDropStreamTaskReq);
-  action.msgType = TDMT_VND_STREAM_TASK_DROP;
+  action.msgType = TDMT_STREAM_TASK_DROP;
  if (mndTransAppendRedoAction(pTrans, &action) != 0) {
    taosMemoryFree(pReq);
    return -1;
@ -518,7 +519,6 @@ static int32_t mndCreateStream(SMnode *pMnode, SRpcMsg *pReq, SCMCreateStreamReq
  // TODO
  streamObj.fixedSinkVgId = 0;
  streamObj.smaId = 0;
-  /*streamObj.physicalPlan = "";*/
  streamObj.trigger = pCreate->triggerType;
  streamObj.watermark = pCreate->watermark;
  streamObj.triggerParam = pCreate->maxDelay;
@ -607,17 +607,6 @@ static int32_t mndProcessCreateStreamReq(SRpcMsg *pReq) {
  }
 #endif

-  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_DB_INSIDE, pReq);
-  if (pTrans == NULL) {
-    mError("stream:%s, failed to create since %s", createStreamReq.name, terrstr());
-    goto _OVER;
-  }
-
-  mndTransSetDbName(pTrans, createStreamReq.sourceDB, NULL);
-  // TODO
-  /*mndTransSetDbName(pTrans, streamObj.targetDb, NULL);*/
-  mDebug("trans:%d, used to create stream:%s", pTrans->id, createStreamReq.name);
-
  // build stream obj from request
  SStreamObj streamObj = {0};
  if (mndBuildStreamObjFromCreateReq(pMnode, &streamObj, &createStreamReq) < 0) {
@ -626,6 +615,14 @@ static int32_t mndProcessCreateStreamReq(SRpcMsg *pReq) {
    goto _OVER;
  }

+  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_DB_INSIDE, pReq);
+  if (pTrans == NULL) {
+    mError("stream:%s, failed to create since %s", createStreamReq.name, terrstr());
+    goto _OVER;
+  }
+  mndTransSetDbName(pTrans, createStreamReq.sourceDB, streamObj.targetDb);
+  mDebug("trans:%d, used to create stream:%s", pTrans->id, createStreamReq.name);
+
  // create stb for stream
  if (mndCreateStbForStream(pMnode, pTrans, &streamObj, pReq->info.conn.user) < 0) {
    mError("trans:%d, failed to create stb for stream %s since %s", pTrans->id, createStreamReq.name, terrstr());
@ -674,20 +671,24 @@ _OVER:

 static int32_t mndProcessDropStreamReq(SRpcMsg *pReq) {
  SMnode     *pMnode = pReq->info.node;
-  int32_t     code = -1;
  SStreamObj *pStream = NULL;
  /*SDbObj     *pDb = NULL;*/
  /*SUserObj   *pUser = NULL;*/

-  SMDropStreamReq dropReq = *(SMDropStreamReq *)pReq->pCont;
+  SMDropStreamReq dropReq = {0};
+  if (tDeserializeSMDropStreamReq(pReq->pCont, pReq->contLen, &dropReq) < 0) {
+    ASSERT(0);
+    terrno = TSDB_CODE_INVALID_MSG;
+    return -1;
+  }

  pStream = mndAcquireStream(pMnode, dropReq.name);

  if (pStream == NULL) {
    if (dropReq.igNotExists) {
      mDebug("stream:%s, not exist, ignore not exist is set", dropReq.name);
-      code = 0;
-      goto DROP_STREAM_OVER;
+      sdbRelease(pMnode->pSdb, pStream);
+      return -1;
    } else {
      terrno = TSDB_CODE_MND_STREAM_NOT_EXIST;
      return -1;
@ -705,14 +706,16 @@ static int32_t mndProcessDropStreamReq(SRpcMsg *pReq) {
  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_NOTHING, pReq);
  if (pTrans == NULL) {
    mError("stream:%s, failed to drop since %s", dropReq.name, terrstr());
-    return code;
+    sdbRelease(pMnode->pSdb, pStream);
+    return -1;
  }
  mDebug("trans:%d, used to drop stream:%s", pTrans->id, dropReq.name);

  // drop all tasks
  if (mndDropStreamTasks(pMnode, pTrans, pStream) < 0) {
    mError("stream:%s, failed to drop task since %s", dropReq.name, terrstr());
-    return code;
+    sdbRelease(pMnode->pSdb, pStream);
+    return -1;
  }

  // drop stream
@ -721,8 +724,16 @@ static int32_t mndProcessDropStreamReq(SRpcMsg *pReq) {
    return -1;
  }

-DROP_STREAM_OVER:
-  return code;
+  if (mndTransPrepare(pMnode, pTrans) != 0) {
+    mError("trans:%d, failed to prepare drop stream trans since %s", pTrans->id, terrstr());
+    sdbRelease(pMnode->pSdb, pStream);
+    mndTransDrop(pTrans);
+    return -1;
+  }
+
+  sdbRelease(pMnode->pSdb, pStream);
+
+  return TSDB_CODE_ACTION_IN_PROGRESS;
 }

 int32_t mndDropStreamByDb(SMnode *pMnode, STrans *pTrans, SDbObj *pDb) {
--- a/source/dnode/mnode/impl/src/mndSubscribe.c
+++ b/source/dnode/mnode/impl/src/mndSubscribe.c
@ -96,6 +96,7 @@ static SMqSubscribeObj *mndCreateSub(SMnode *pMnode, const SMqTopicObj *pTopic,
  pSub->dbUid = pTopic->dbUid;
  pSub->stbUid = pTopic->stbUid;
  pSub->subType = pTopic->subType;
+  pSub->withMeta = pTopic->withMeta;

  ASSERT(pSub->unassignedVgs->size == 0);
  ASSERT(taosHashGetSize(pSub->consumerHash) == 0);
@ -120,6 +121,7 @@ static int32_t mndBuildSubChangeReq(void **pBuf, int32_t *pLen, const SMqSubscri
  req.vgId = pRebVg->pVgEp->vgId;
  req.qmsg = pRebVg->pVgEp->qmsg;
  req.subType = pSub->subType;
+  req.withMeta = pSub->withMeta;
  req.suid = pSub->stbUid;
  strncpy(req.subKey, pSub->key, TSDB_SUBSCRIBE_KEY_LEN);

--- a/source/dnode/mnode/impl/src/mndSync.c
+++ b/source/dnode/mnode/impl/src/mndSync.c
@ -68,18 +68,17 @@ void mndSyncCommitMsg(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbM
      mndTransExecute(pMnode, pTrans);
      mndReleaseTrans(pMnode, pTrans);
    }
-
+#if 0
    sdbWriteFile(pMnode->pSdb, SDB_WRITE_DELTA);
+#endif
  }
 }

 int32_t mndSyncGetSnapshot(struct SSyncFSM *pFsm, SSnapshot *pSnapshot, void *pReaderParam, void **ppReader) {
-  // TODO:
-
-  // atomic operation
-  // step1. sdbGetCommitInfo
-  // step2. create ppReader with pReaderParam
-
+  mInfo("start to read snapshot from sdb in atomic way");
+  SMnode *pMnode = pFsm->data;
+  return sdbStartRead(pMnode->pSdb, (SSdbIter **)ppReader, &pSnapshot->lastApplyIndex, &pSnapshot->lastApplyTerm,
+                      &pSnapshot->lastConfigIndex);
  return 0;
 }

@ -105,14 +104,6 @@ void mndReConfig(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SReConfigCbMeta cbM
  SMnode    *pMnode = pFsm->data;
  SSyncMgmt *pMgmt = &pMnode->syncMgmt;

-#if 0
-// send response
-  SRpcMsg rpcMsg = {.msgType = pMsg->msgType, .contLen = pMsg->contLen, .conn.applyIndex = cbMeta.index};
-  rpcMsg.pCont = rpcMallocCont(rpcMsg.contLen);
-  memcpy(rpcMsg.pCont, pMsg->pCont, pMsg->contLen);
-  syncGetAndDelRespRpc(pMnode->syncMgmt.sync, cbMeta.seqNum, &rpcMsg.info);
-#endif
-
  pMgmt->errCode = cbMeta.code;
  mInfo("trans:-1, sync reconfig is proposed, saved:%d code:0x%x, index:%" PRId64 " term:%" PRId64, pMgmt->transId,
        cbMeta.code, cbMeta.index, cbMeta.term);
@ -129,7 +120,7 @@ void mndReConfig(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SReConfigCbMeta cbM
 int32_t mndSnapshotStartRead(struct SSyncFSM *pFsm, void **ppReader) {
  mInfo("start to read snapshot from sdb");
  SMnode *pMnode = pFsm->data;
-  return sdbStartRead(pMnode->pSdb, (SSdbIter **)ppReader);
+  return sdbStartRead(pMnode->pSdb, (SSdbIter **)ppReader, NULL, NULL, NULL);
 }

 int32_t mndSnapshotStopRead(struct SSyncFSM *pFsm, void *pReader) {
--- a/source/dnode/mnode/impl/src/mndTopic.c
+++ b/source/dnode/mnode/impl/src/mndTopic.c
@ -141,6 +141,7 @@ SSdbRaw *mndTopicActionEncode(SMqTopicObj *pTopic) {
  SDB_SET_INT64(pRaw, dataPos, pTopic->dbUid, TOPIC_ENCODE_OVER);
  SDB_SET_INT32(pRaw, dataPos, pTopic->version, TOPIC_ENCODE_OVER);
  SDB_SET_INT8(pRaw, dataPos, pTopic->subType, TOPIC_ENCODE_OVER);
+  SDB_SET_INT8(pRaw, dataPos, pTopic->withMeta, TOPIC_ENCODE_OVER);

  SDB_SET_INT64(pRaw, dataPos, pTopic->stbUid, TOPIC_ENCODE_OVER);
  SDB_SET_INT32(pRaw, dataPos, pTopic->sqlLen, TOPIC_ENCODE_OVER);
@ -208,6 +209,7 @@ SSdbRow *mndTopicActionDecode(SSdbRaw *pRaw) {
  SDB_GET_INT64(pRaw, dataPos, &pTopic->dbUid, TOPIC_DECODE_OVER);
  SDB_GET_INT32(pRaw, dataPos, &pTopic->version, TOPIC_DECODE_OVER);
  SDB_GET_INT8(pRaw, dataPos, &pTopic->subType, TOPIC_DECODE_OVER);
+  SDB_GET_INT8(pRaw, dataPos, &pTopic->withMeta, TOPIC_DECODE_OVER);

  SDB_GET_INT64(pRaw, dataPos, &pTopic->stbUid, TOPIC_DECODE_OVER);
  SDB_GET_INT32(pRaw, dataPos, &pTopic->sqlLen, TOPIC_DECODE_OVER);
@ -357,6 +359,10 @@ static int32_t mndCreateTopic(SMnode *pMnode, SRpcMsg *pReq, SCMCreateTopicReq *
  topicObj.sql = strdup(pCreate->sql);
  topicObj.sqlLen = strlen(pCreate->sql) + 1;
  topicObj.subType = pCreate->subType;
+  topicObj.withMeta = pCreate->withMeta;
+  if (topicObj.withMeta) {
+    ASSERT(topicObj.subType != TOPIC_SUB_TYPE__COLUMN);
+  }

  if (pCreate->subType == TOPIC_SUB_TYPE__COLUMN) {
    topicObj.ast = strdup(pCreate->ast);
--- a/source/dnode/mnode/impl/src/mndTrans.c
+++ b/source/dnode/mnode/impl/src/mndTrans.c
@ -22,8 +22,8 @@
 #include "mndSync.h"
 #include "mndUser.h"

-#define TRANS_VER_NUMBER   1
-#define TRANS_ARRAY_SIZE   8
+#define TRANS_VER_NUMBER 1
+#define TRANS_ARRAY_SIZE 8
 #define TRANS_RESERVE_SIZE 64

 static SSdbRaw *mndTransActionEncode(STrans *pTrans);
@ -804,7 +804,7 @@ static void mndTransSendRpcRsp(SMnode *pMnode, STrans *pTrans) {
      sendRsp = true;
    }
  } else {
-    if (pTrans->stage == TRN_STAGE_REDO_ACTION && pTrans->failedTimes > 2) {
+    if (pTrans->stage == TRN_STAGE_REDO_ACTION && pTrans->failedTimes > 3) {
      if (code == 0) code = TSDB_CODE_MND_TRANS_UNKNOW_ERROR;
      sendRsp = true;
    }
@ -896,7 +896,7 @@ static void mndTransResetActions(SMnode *pMnode, STrans *pTrans, SArray *pArray)
    pAction->rawWritten = 0;
    pAction->msgSent = 0;
    pAction->msgReceived = 0;
-    if (pAction->errCode == TSDB_CODE_RPC_REDIRECT || pAction->errCode == TSDB_CODE_SYN_NOT_IN_NEW_CONFIG ||
+    if (pAction->errCode == TSDB_CODE_RPC_REDIRECT || pAction->errCode == TSDB_CODE_SYN_NEW_CONFIG_ERROR ||
        pAction->errCode == TSDB_CODE_SYN_INTERNAL_ERROR || pAction->errCode == TSDB_CODE_SYN_NOT_LEADER) {
      pAction->epSet.inUse = (pAction->epSet.inUse + 1) % pAction->epSet.numOfEps;
      mDebug("trans:%d, %s:%d execute status is reset and set epset inuse:%d", pTrans->id, mndTransStr(pAction->stage),
@ -1127,6 +1127,7 @@ static int32_t mndTransExecuteRedoActionsSerial(SMnode *pMnode, STrans *pTrans)
    }

    if (code == 0) {
+      pTrans->failedTimes = 0;
      pTrans->lastAction = action;
      pTrans->lastMsgType = 0;
      pTrans->lastErrorNo = 0;
@ -1430,8 +1431,7 @@ void mndTransPullup(SMnode *pMnode) {
    mndReleaseTrans(pMnode, pTrans);
  }

-  // todo, set to SDB_WRITE_DELTA
-  sdbWriteFile(pMnode->pSdb, 0);
+  sdbWriteFile(pMnode->pSdb, SDB_WRITE_DELTA);
  taosArrayDestroy(pArray);
 }

--- a/source/dnode/mnode/impl/test/sdb/sdbTest.cpp
+++ b/source/dnode/mnode/impl/test/sdb/sdbTest.cpp
@ -910,7 +910,7 @@ TEST_F(MndTestSdb, 01_Read_Str) {
    int32_t   len = 0;
    int32_t   code = 0;

-    code = sdbStartRead(pSdb, &pReader);
+    code = sdbStartRead(pSdb, &pReader, NULL, NULL, NULL);
    ASSERT_EQ(code, 0);
    code = sdbStartWrite(pSdb, &pWritter);
    ASSERT_EQ(code, 0);
--- a/source/dnode/mnode/sdb/inc/sdb.h
+++ b/source/dnode/mnode/sdb/inc/sdb.h
@ -37,7 +37,7 @@ extern "C" {
 #define mTrace(...) { if (mDebugFlag & DEBUG_TRACE) { taosPrintLog("MND ", DEBUG_TRACE, mDebugFlag, __VA_ARGS__); }}
 // clang-format on

-#define SDB_WRITE_DELTA 100
+#define SDB_WRITE_DELTA 20

 #define SDB_GET_VAL(pData, dataPos, val, pos, func, type) \
  {                                                       \
@ -388,7 +388,7 @@ SSdbRow *sdbAllocRow(int32_t objSize);
 void    *sdbGetRowObj(SSdbRow *pRow);
 void     sdbFreeRow(SSdb *pSdb, SSdbRow *pRow, bool callFunc);

-int32_t sdbStartRead(SSdb *pSdb, SSdbIter **ppIter);
+int32_t sdbStartRead(SSdb *pSdb, SSdbIter **ppIter, int64_t *index, int64_t *term, int64_t *config);
 int32_t sdbStopRead(SSdb *pSdb, SSdbIter *pIter);
 int32_t sdbDoRead(SSdb *pSdb, SSdbIter *pIter, void **ppBuf, int32_t *len);

--- a/source/dnode/mnode/sdb/src/sdb.c
+++ b/source/dnode/mnode/sdb/src/sdb.c
@ -161,9 +161,11 @@ static int32_t sdbCreateDir(SSdb *pSdb) {
 }

 void sdbSetApplyInfo(SSdb *pSdb, int64_t index, int64_t term, int64_t config) {
-  mTrace("mnode apply info changed, from index:%" PRId64 " term:%" PRId64 " config:%" PRId64 ", to index:%" PRId64
+#if 1
+  mTrace("mnode apply info changed from index:%" PRId64 " term:%" PRId64 " config:%" PRId64 " to index:%" PRId64
         " term:%" PRId64 " config:%" PRId64,
         pSdb->applyIndex, pSdb->applyTerm, pSdb->applyConfig, index, term, config);
+#endif
  pSdb->applyIndex = index;
  pSdb->applyTerm = term;
  pSdb->applyConfig = config;
@ -173,7 +175,9 @@ void sdbGetCommitInfo(SSdb *pSdb, int64_t *index, int64_t *term, int64_t *config
  *index = pSdb->commitIndex;
  *term = pSdb->commitTerm;
  *config = pSdb->commitConfig;
+#if 0
  mTrace("mnode current info, apply index:%" PRId64 " term:%" PRId64 " config:%" PRId64 ", commit index:%" PRId64
         " term:%" PRId64 " config:%" PRId64,
         pSdb->applyIndex, pSdb->applyTerm, pSdb->applyConfig, *index, *term, *config);
+#endif
 }
--- a/source/dnode/mnode/sdb/src/sdbFile.c
+++ b/source/dnode/mnode/sdb/src/sdbFile.c
@ -523,7 +523,7 @@ static void sdbCloseIter(SSdbIter *pIter) {
  taosMemoryFree(pIter);
 }

-int32_t sdbStartRead(SSdb *pSdb, SSdbIter **ppIter) {
+int32_t sdbStartRead(SSdb *pSdb, SSdbIter **ppIter, int64_t *index, int64_t *term, int64_t *config) {
  SSdbIter *pIter = sdbCreateIter(pSdb);
  if (pIter == NULL) return -1;

@ -552,6 +552,10 @@ int32_t sdbStartRead(SSdb *pSdb, SSdbIter **ppIter) {
  }

  *ppIter = pIter;
+  if (index != NULL) *index = commitIndex;
+  if (term != NULL) *term = commitTerm;
+  if (config != NULL) *config = commitConfig;
+
  mInfo("sdbiter:%p, is created to read snapshot, commit index:%" PRId64 " term:%" PRId64 " config:%" PRId64 " file:%s",
        pIter, commitIndex, commitTerm, commitConfig, pIter->name);
  return 0;
--- a/source/dnode/snode/src/snode.c
+++ b/source/dnode/snode/src/snode.c
@ -78,8 +78,8 @@ int32_t sndMetaRemoveTask(SStreamMeta *pMeta, int32_t taskId) {

 static int32_t sndProcessTaskDeployReq(SSnode *pNode, SRpcMsg *pMsg) {
  SStreamMeta *pMeta = pNode->pMeta;
-  char        *msg = pMsg->pCont;
-  int32_t      msgLen = pMsg->contLen;
+  char        *msg = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
+  int32_t      msgLen = pMsg->contLen - sizeof(SMsgHead);

  SStreamTask *pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
  if (pTask == NULL) {
@ -92,7 +92,7 @@ static int32_t sndProcessTaskDeployReq(SSnode *pNode, SRpcMsg *pMsg) {
  }
  tDecoderClear(&decoder);

-  pTask->status = TASK_STATUS__IDLE;
+  pTask->execStatus = TASK_EXEC_STATUS__IDLE;

  pTask->inputQueue = streamQueueOpen();
  pTask->outputQueue = streamQueueOpen();
@ -105,23 +105,22 @@ static int32_t sndProcessTaskDeployReq(SSnode *pNode, SRpcMsg *pMsg) {

  ASSERT(pTask->execType != TASK_EXEC__NONE);

-  SReadHandle handle = {
-      .pMsgCb = &pNode->msgCb,
-  };
-
-  /*pTask->exec.inputHandle = NULL;*/
-  pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &handle);
+  ASSERT(pTask->dataScan == 0);
+  pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, NULL);
  ASSERT(pTask->exec.executor);

  streamSetupTrigger(pTask);

  qInfo("deploy stream: stream id %ld task id %d child id %d on snode", pTask->streamId, pTask->taskId, pTask->childId);

+  taosHashPut(pMeta->pHash, &pTask->taskId, sizeof(int32_t), &pTask, sizeof(void *));
+
  return 0;

 FAIL:
  if (pTask->inputQueue) streamQueueClose(pTask->inputQueue);
  if (pTask->outputQueue) streamQueueClose(pTask->outputQueue);
+  if (pTask) taosMemoryFree(pTask);
  return -1;
 }

@ -130,7 +129,7 @@ static int32_t sndProcessTaskRunReq(SSnode *pNode, SRpcMsg *pMsg) {
  SStreamTaskRunReq *pReq = pMsg->pCont;
  int32_t            taskId = pReq->taskId;
  SStreamTask       *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamTaskProcessRunReq(pTask, &pNode->msgCb);
+  streamProcessRunReq(pTask);
  return 0;
 }

@ -151,7 +150,7 @@ static int32_t sndProcessTaskDispatchReq(SSnode *pNode, SRpcMsg *pMsg) {
           .info = pMsg->info,
           .code = 0,
  };
-  streamProcessDispatchReq(pTask, &pNode->msgCb, &req, &rsp);
+  streamProcessDispatchReq(pTask, &req, &rsp);
  return 0;
 }

@ -161,7 +160,7 @@ static int32_t sndProcessTaskRecoverReq(SSnode *pNode, SRpcMsg *pMsg) {
  SStreamTaskRecoverReq *pReq = pMsg->pCont;
  int32_t                taskId = pReq->taskId;
  SStreamTask           *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamProcessRecoverReq(pTask, &pNode->msgCb, pReq, pMsg);
+  streamProcessRecoverReq(pTask, pReq, pMsg);
  return 0;
 }

@ -171,7 +170,7 @@ static int32_t sndProcessTaskDispatchRsp(SSnode *pNode, SRpcMsg *pMsg) {
  SStreamDispatchRsp *pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
  int32_t             taskId = pRsp->taskId;
  SStreamTask        *pTask = *(SStreamTask **)taosHashGet(pMeta->pHash, &taskId, sizeof(int32_t));
-  streamProcessDispatchRsp(pTask, &pNode->msgCb, pRsp);
+  streamProcessDispatchRsp(pTask, pRsp);
  return 0;
 }

@ -206,7 +205,7 @@ int32_t sndProcessUMsg(SSnode *pSnode, SRpcMsg *pMsg) {
  switch (pMsg->msgType) {
    case TDMT_STREAM_TASK_DEPLOY:
      return sndProcessTaskDeployReq(pSnode, pMsg);
-    case TDMT_VND_STREAM_TASK_DROP:
+    case TDMT_STREAM_TASK_DROP:
      return sndProcessTaskDropReq(pSnode, pMsg);
    default:
      ASSERT(0);
--- a/source/dnode/vnode/src/inc/tq.h
+++ b/source/dnode/vnode/src/inc/tq.h
@ -114,6 +114,7 @@ typedef struct {
  char    subKey[TSDB_SUBSCRIBE_KEY_LEN];
  int64_t consumerId;
  int32_t epoch;
+  int8_t  fetchMeta;

  // reader
  SWalReadHandle* pWalReader;
--- a/source/dnode/vnode/src/inc/vnd.h
+++ b/source/dnode/vnode/src/inc/vnd.h
@ -32,7 +32,14 @@ extern "C" {
 #define vInfo(...)  do { if (vDebugFlag & DEBUG_INFO)  { taosPrintLog("VND ", DEBUG_INFO, 255, __VA_ARGS__); }}            while(0)
 #define vDebug(...) do { if (vDebugFlag & DEBUG_DEBUG) { taosPrintLog("VND ", DEBUG_DEBUG, vDebugFlag, __VA_ARGS__); }}    while(0)
 #define vTrace(...) do { if (vDebugFlag & DEBUG_TRACE) { taosPrintLog("VND ", DEBUG_TRACE, vDebugFlag, __VA_ARGS__); }}    while(0)
-#define vGTrace(param, ...) do { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vTrace(param " GTID: %s", __VA_ARGS__, buf);}      while(0)//#define vDye(...)   do
+
+#define vGTrace(param, ...) do { if (vDebugFlag & DEBUG_TRACE) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vTrace(param ", gtid:%s", __VA_ARGS__, buf);}} while(0)
+#define vGFatal(param, ...) do { if (vDebugFlag & DEBUG_FATAL) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vFatal(param ", gtid:%s", __VA_ARGS__, buf);}} while(0)
+#define vGError(param, ...) do { if (vDebugFlag & DEBUG_ERROR) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vError(param ", gtid:%s", __VA_ARGS__, buf);}} while(0)
+#define vGWarn(param, ...)  do { if (vDebugFlag & DEBUG_WARN)  { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vWarn(param ", gtid:%s", __VA_ARGS__, buf);}} while(0)
+#define vGInfo(param, ...)  do { if (vDebugFlag & DEBUG_INFO)  { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vInfo(param ", gtid:%s", __VA_ARGS__, buf);}} while(0)
+#define vGDebug(param, ...) do { if (vDebugFlag & DEBUG_DEBUG) { char buf[40] = {0}; TRACE_TO_STR(trace, buf); vDebug(param ", gtid:%s", __VA_ARGS__, buf);}}    while(0)
+
 // clang-format on

 // vnodeCfg.c
@ -71,6 +78,7 @@ void    vnodeBufPoolReset(SVBufPool* pPool);
 int32_t vnodeQueryOpen(SVnode* pVnode);
 void    vnodeQueryClose(SVnode* pVnode);
 int32_t vnodeGetTableMeta(SVnode* pVnode, SRpcMsg* pMsg);
+int     vnodeGetTableCfg(SVnode *pVnode, SRpcMsg *pMsg);

 // vnodeCommit.c
 int32_t vnodeBegin(SVnode* pVnode);
--- a/source/dnode/vnode/src/inc/vnodeInt.h
+++ b/source/dnode/vnode/src/inc/vnodeInt.h
@ -87,7 +87,7 @@ int             metaAlterSTable(SMeta* pMeta, int64_t version, SVCreateStbReq* p
 int             metaDropSTable(SMeta* pMeta, int64_t verison, SVDropStbReq* pReq);
 int             metaCreateTable(SMeta* pMeta, int64_t version, SVCreateTbReq* pReq);
 int             metaDropTable(SMeta* pMeta, int64_t version, SVDropTbReq* pReq, SArray* tbUids);
-int             metaTtlDropTable(SMeta *pMeta, int64_t ttl, SArray *tbUids);
+int             metaTtlDropTable(SMeta* pMeta, int64_t ttl, SArray* tbUids);
 int             metaAlterTable(SMeta* pMeta, int64_t version, SVAlterTbReq* pReq, STableMetaRsp* pMetaRsp);
 SSchemaWrapper* metaGetTableSchema(SMeta* pMeta, tb_uid_t uid, int32_t sver, bool isinline);
 STSchema*       metaGetTbTSchema(SMeta* pMeta, tb_uid_t uid, int32_t sver);
@ -106,28 +106,28 @@ int32_t         metaSnapshotReaderClose(SMetaSnapshotReader* pReader);
 int32_t         metaSnapshotRead(SMetaSnapshotReader* pReader, void** ppData, uint32_t* nData);
 void*           metaGetIdx(SMeta* pMeta);
 void*           metaGetIvtIdx(SMeta* pMeta);
-int             metaTtlSmaller(SMeta *pMeta, uint64_t time, SArray *uidList);
+int             metaTtlSmaller(SMeta* pMeta, uint64_t time, SArray* uidList);

 int32_t metaCreateTSma(SMeta* pMeta, int64_t version, SSmaCfg* pCfg);
 int32_t metaDropTSma(SMeta* pMeta, int64_t indexUid);

 // tsdb
-int          tsdbOpen(SVnode* pVnode, STsdb** ppTsdb, const char* dir, STsdbKeepCfg* pKeepCfg);
-int          tsdbClose(STsdb** pTsdb);
-int32_t      tsdbBegin(STsdb* pTsdb);
-int32_t      tsdbCommit(STsdb* pTsdb);
-int          tsdbScanAndConvertSubmitMsg(STsdb* pTsdb, SSubmitReq* pMsg);
-int          tsdbInsertData(STsdb* pTsdb, int64_t version, SSubmitReq* pMsg, SSubmitRsp* pRsp);
-int32_t      tsdbInsertTableData(STsdb* pTsdb, int64_t version, SSubmitMsgIter* pMsgIter, SSubmitBlk* pBlock,
-                                 SSubmitBlkRsp* pRsp);
-int32_t      tsdbDeleteTableData(STsdb* pTsdb, int64_t version, tb_uid_t suid, tb_uid_t uid, TSKEY sKey, TSKEY eKey);
-tsdbReaderT  tsdbReaderOpen(SVnode* pVnode, SQueryTableDataCond* pCond, STableListInfo* tableList, uint64_t qId,
-                            uint64_t taskId);
-tsdbReaderT  tsdbQueryCacheLastT(STsdb* tsdb, SQueryTableDataCond* pCond, STableListInfo* tableList, uint64_t qId,
-                                 void* pMemRef);
-int32_t      tsdbSnapshotReaderOpen(STsdb* pTsdb, STsdbSnapshotReader** ppReader, int64_t sver, int64_t ever);
-int32_t      tsdbSnapshotReaderClose(STsdbSnapshotReader* pReader);
-int32_t      tsdbSnapshotRead(STsdbSnapshotReader* pReader, void** ppData, uint32_t* nData);
+int         tsdbOpen(SVnode* pVnode, STsdb** ppTsdb, const char* dir, STsdbKeepCfg* pKeepCfg);
+int         tsdbClose(STsdb** pTsdb);
+int32_t     tsdbBegin(STsdb* pTsdb);
+int32_t     tsdbCommit(STsdb* pTsdb);
+int         tsdbScanAndConvertSubmitMsg(STsdb* pTsdb, SSubmitReq* pMsg);
+int         tsdbInsertData(STsdb* pTsdb, int64_t version, SSubmitReq* pMsg, SSubmitRsp* pRsp);
+int32_t     tsdbInsertTableData(STsdb* pTsdb, int64_t version, SSubmitMsgIter* pMsgIter, SSubmitBlk* pBlock,
+                                SSubmitBlkRsp* pRsp);
+int32_t     tsdbDeleteTableData(STsdb* pTsdb, int64_t version, tb_uid_t suid, tb_uid_t uid, TSKEY sKey, TSKEY eKey);
+tsdbReaderT tsdbReaderOpen(SVnode* pVnode, SQueryTableDataCond* pCond, STableListInfo* tableList, uint64_t qId,
+                           uint64_t taskId);
+tsdbReaderT tsdbQueryCacheLastT(STsdb* tsdb, SQueryTableDataCond* pCond, STableListInfo* tableList, uint64_t qId,
+                                void* pMemRef);
+int32_t     tsdbSnapshotReaderOpen(STsdb* pTsdb, STsdbSnapshotReader** ppReader, int64_t sver, int64_t ever);
+int32_t     tsdbSnapshotReaderClose(STsdbSnapshotReader* pReader);
+int32_t     tsdbSnapshotRead(STsdbSnapshotReader* pReader, void** ppData, uint32_t* nData);

 // tq
 int     tqInit();
@ -141,7 +141,7 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessVgDeleteReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessOffsetCommitReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId);
-int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen);
+int32_t tqProcessTaskDeployReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessTaskDropReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* data);
 int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg);
@ -262,7 +262,7 @@ struct SSma {

 #define SMA_CFG(s)        (&(s)->pVnode->config)
 #define SMA_TSDB_CFG(s)   (&(s)->pVnode->config.tsdbCfg)
-#define SMA_RETENTION(s)  ((SRetention *)&(s)->pVnode->config.tsdbCfg.retentions)
+#define SMA_RETENTION(s)  ((SRetention*)&(s)->pVnode->config.tsdbCfg.retentions)
 #define SMA_LOCKED(s)     ((s)->locked)
 #define SMA_META(s)       ((s)->pVnode->pMeta)
 #define SMA_VID(s)        TD_VID((s)->pVnode)
--- a/source/dnode/vnode/src/sma/smaRollup.c
+++ b/source/dnode/vnode/src/sma/smaRollup.c
@ -21,6 +21,31 @@ static FORCE_INLINE int32_t tdUpdateTbUidListImpl(SSma *pSma, tb_uid_t *suid, SA
 static FORCE_INLINE int32_t tdExecuteRSmaImpl(SSma *pSma, const void *pMsg, int32_t inputType, SRSmaInfoItem *rsmaItem,
                                              tb_uid_t suid, int8_t level);

+#define SET_RSMA_INFO_ITEM_PARAMS(__idx, __level)                                                               \
+  if (param->qmsg[__idx]) {                                                                                     \
+    pRSmaInfo->items[__idx].pRsmaInfo = pRSmaInfo;                                                              \
+    pRSmaInfo->items[__idx].taskInfo = qCreateStreamExecTaskInfo(param->qmsg[0], &handle);                      \
+    if (!pRSmaInfo->items[__idx].taskInfo) {                                                                    \
+      goto _err;                                                                                                \
+    }                                                                                                           \
+    pRSmaInfo->items[__idx].triggerStatus = TASK_TRIGGER_STATUS__IN_ACTIVE;                                     \
+    if (param->maxdelay[__idx] < 1) {                                                                           \
+      int64_t msInterval =                                                                                      \
+          convertTimeFromPrecisionToUnit(pRetention[__level].freq, pTsdbCfg->precision, TIME_UNIT_MILLISECOND); \
+      pRSmaInfo->items[__idx].maxDelay = msInterval;                                                            \
+    } else {                                                                                                    \
+      pRSmaInfo->items[__idx].maxDelay = param->maxdelay[__idx];                                                \
+    }                                                                                                           \
+    if (pRSmaInfo->items[__idx].maxDelay > TSDB_MAX_ROLLUP_MAX_DELAY) {                                         \
+      pRSmaInfo->items[__idx].maxDelay = TSDB_MAX_ROLLUP_MAX_DELAY;                                             \
+    }                                                                                                           \
+    pRSmaInfo->items[__idx].level = TSDB_RETENTION_L##__level;                                                  \
+    pRSmaInfo->items[__idx].tmrHandle = taosTmrInit(10000, 100, 10000, "RSMA");                                 \
+    if (!pRSmaInfo->items[__idx].tmrHandle) {                                                                   \
+      goto _err;                                                                                                \
+    }                                                                                                           \
+  }
+
 struct SRSmaInfoItem {
  SRSmaInfo *pRsmaInfo;
  void      *taskInfo;  // qTaskInfo_t
@ -207,7 +232,7 @@ int32_t tdProcessRSmaCreate(SVnode *pVnode, SVCreateStbReq *pReq) {
  SMsgCb     *pMsgCb = &pVnode->msgCb;
  SRSmaParam *param = &pReq->pRSmaParam;

-  if ((param->qmsg1Len == 0) && (param->qmsg2Len == 0)) {
+  if ((param->qmsgLen[0] == 0) && (param->qmsgLen[1] == 0)) {
    smaWarn("vgId:%d, no qmsg1/qmsg2 for rollup stable %s %" PRIi64, SMA_VID(pSma), pReq->name, pReq->suid);
    return TSDB_CODE_SUCCESS;
  }
@ -257,36 +282,11 @@ int32_t tdProcessRSmaCreate(SVnode *pVnode, SVCreateStbReq *pReq) {
  pRSmaInfo->pSma = pSma;
  pRSmaInfo->suid = pReq->suid;

-  if (param->qmsg1) {
-    pRSmaInfo->items[0].pRsmaInfo = pRSmaInfo;
-    pRSmaInfo->items[0].taskInfo = qCreateStreamExecTaskInfo(param->qmsg1, &handle);
-    if (!pRSmaInfo->items[0].taskInfo) {
-      goto _err;
-    }
-    pRSmaInfo->items[0].triggerStatus = TASK_TRIGGER_STATUS__IN_ACTIVE;
-    pRSmaInfo->items[0].maxDelay = 5000;
-    pRSmaInfo->items[0].level = TSDB_RETENTION_L1;
-    pRSmaInfo->items[0].tmrHandle = taosTmrInit(10000, 100, 10000, "RSMA_L1");
+  SRetention *pRetention = SMA_RETENTION(pSma);
+  STsdbCfg   *pTsdbCfg = SMA_TSDB_CFG(pSma);

-    if (!pRSmaInfo->items[0].tmrHandle) {
-      goto _err;
-    }
-  }
-
-  if (param->qmsg2) {
-    pRSmaInfo->items[1].pRsmaInfo = pRSmaInfo;
-    pRSmaInfo->items[1].taskInfo = qCreateStreamExecTaskInfo(param->qmsg2, &handle);
-    if (!pRSmaInfo->items[1].taskInfo) {
-      goto _err;
-    }
-    pRSmaInfo->items[1].triggerStatus = TASK_TRIGGER_STATUS__IN_ACTIVE;
-    pRSmaInfo->items[1].maxDelay = 5000;
-    pRSmaInfo->items[1].level = TSDB_RETENTION_L2;
-    pRSmaInfo->items[1].tmrHandle = taosTmrInit(10000, 100, 10000, "RSMA_L2");
-    if (!pRSmaInfo->items[1].tmrHandle) {
-      goto _err;
-    }
-  }
+  SET_RSMA_INFO_ITEM_PARAMS(0, 1);
+  SET_RSMA_INFO_ITEM_PARAMS(1, 2);

  if (taosHashPut(SMA_STAT_INFO_HASH(pStat), &pReq->suid, sizeof(tb_uid_t), &pRSmaInfo, sizeof(pRSmaInfo)) !=
      TSDB_CODE_SUCCESS) {
@ -451,7 +451,7 @@ static int32_t tdFetchAndSubmitRSmaResult(SRSmaInfoItem *pItem, int8_t blkType)
  }

  if (taosArrayGetSize(pResult) > 0) {
-#if 1
+#if 0
    char flag[10] = {0};
    snprintf(flag, 10, "level %" PRIi8, pItem->level);
    blockDebugShowData(pResult, flag);
@ -494,7 +494,7 @@ static void rsmaTriggerByTimer(void *param, void *tmrId) {
  SRSmaInfoItem *pItem = param;

  if (atomic_load_8(&pItem->triggerStatus) == TASK_TRIGGER_STATUS__ACTIVE) {
-    printf("%s:%d THREAD:%" PRIi64 " status = active\n", __func__, __LINE__, taosGetSelfPthreadId());
+    smaTrace("level %" PRIi8 " status is active for tb suid:%" PRIi64, pItem->level, pItem->pRsmaInfo->suid);
    SSDataBlock dataBlock = {.info.type = STREAM_GET_ALL};

    atomic_store_8(&pItem->triggerStatus, TASK_TRIGGER_STATUS__IN_ACTIVE);
@ -502,7 +502,7 @@ static void rsmaTriggerByTimer(void *param, void *tmrId) {

    tdFetchAndSubmitRSmaResult(pItem, STREAM_DATA_TYPE_SSDATA_BLOCK);
  } else {
-    printf("%s:%d THREAD:%" PRIi64 " status = in active\n", __func__, __LINE__, taosGetSelfPthreadId());
+    smaTrace("level %" PRIi8 " status is inactive for tb suid:%" PRIi64, pItem->level, pItem->pRsmaInfo->suid);
  }

  // taosTmrReset(rsmaTriggerByTimer, pItem->maxDelay, pItem, pItem->tmrHandle, &pItem->tmrId);
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@ -85,6 +85,34 @@ void tqClose(STQ* pTq) {
  }
 }

+int32_t tqSendMetaPollRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqMetaRsp* pRsp) {
+  int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqMetaRsp(NULL, pRsp);
+  void*   buf = rpcMallocCont(tlen);
+  if (buf == NULL) {
+    return -1;
+  }
+
+  ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_META_RSP;
+  ((SMqRspHead*)buf)->epoch = pReq->epoch;
+  ((SMqRspHead*)buf)->consumerId = pReq->consumerId;
+
+  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
+  tEncodeSMqMetaRsp(&abuf, pRsp);
+
+  SRpcMsg resp = {
+      .info = pMsg->info,
+      .pCont = buf,
+      .contLen = tlen,
+      .code = 0,
+  };
+  tmsgSendRsp(&resp);
+
+  tqDebug("vg %d from consumer %ld (epoch %d) send rsp, res msg type %d, reqOffset: %ld, rspOffset: %ld",
+          TD_VID(pTq->pVnode), pReq->consumerId, pReq->epoch, pRsp->resMsgType, pRsp->reqOffset, pRsp->rspOffset);
+
+  return 0;
+}
+
 int32_t tqSendPollRsp(STQ* pTq, const SRpcMsg* pMsg, const SMqPollReq* pReq, const SMqDataBlkRsp* pRsp) {
  int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqDataBlkRsp(NULL, pRsp);
  void*   buf = rpcMallocCont(tlen);
@ -250,8 +278,23 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
        /*ASSERT(0);*/
      }
    } else {
-      // TODO
-      ASSERT(0);
+      ASSERT(pHandle->fetchMeta);
+      ASSERT(pHead->msgType == TDMT_VND_CREATE_STB || pHead->msgType == TDMT_VND_ALTER_STB ||
+             pHead->msgType == TDMT_VND_DROP_STB || pHead->msgType == TDMT_VND_CREATE_TABLE ||
+             pHead->msgType == TDMT_VND_ALTER_TABLE || pHead->msgType == TDMT_VND_DROP_TABLE ||
+             pHead->msgType == TDMT_VND_DROP_TTL_TABLE);
+      // return
+      SMqMetaRsp metaRsp = {0};
+      metaRsp.reqOffset = pReq->currentOffset;
+      metaRsp.rspOffset = fetchOffset;
+      metaRsp.resMsgType = pHead->msgType;
+      metaRsp.metaRspLen = pHead->bodyLen;
+      metaRsp.metaRsp = pHead->body;
+      if (tqSendMetaPollRsp(pTq, pMsg, pReq, &metaRsp) < 0) {
+        code = -1;
+      }
+      code = 0;
+      goto OVER;
    }

    // TODO batch optimization:
@ -276,7 +319,7 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
  if (tqSendPollRsp(pTq, pMsg, pReq, &rsp) < 0) {
    code = -1;
  }
-
+OVER:
  // TODO wrap in destroy func
  taosArrayDestroy(rsp.blockDataLen);
  taosArrayDestroyP(rsp.blockData, (FDelete)taosMemoryFree);
@ -333,7 +376,6 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen) {
        SReadHandle handle = {
            .reader = pHandle->execHandle.pExecReader[i],
            .meta = pTq->pVnode->pMeta,
-            .pMsgCb = &pTq->pVnode->msgCb,
        };
        pHandle->execHandle.execCol.task[i] = qCreateStreamExecTaskInfo(pHandle->execHandle.execCol.qmsg, &handle);
        ASSERT(pHandle->execHandle.execCol.task[i]);
@ -373,7 +415,7 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen) {
  return 0;
 }

-int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
+int32_t tqProcessTaskDeployReq(STQ* pTq, char* msg, int32_t msgLen) {
  SStreamTask* pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
  if (pTask == NULL) {
    return -1;
@ -385,7 +427,7 @@ int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
  }
  tDecoderClear(&decoder);

-  pTask->status = TASK_STATUS__IDLE;
+  pTask->execStatus = TASK_EXEC_STATUS__IDLE;

  pTask->inputQueue = streamQueueOpen();
  pTask->outputQueue = streamQueueOpen();
@ -404,7 +446,6 @@ int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
      SReadHandle    handle = {
             .reader = pStreamReader,
             .meta = pTq->pVnode->pMeta,
-             .pMsgCb = &pTq->pVnode->msgCb,
             .vnode = pTq->pVnode,
      };
      /*pTask->exec.inputHandle = pStreamReader;*/
@ -461,6 +502,9 @@ int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* pReq) {
    pIter = taosHashIterate(pTq->pStreamTasks, pIter);
    if (pIter == NULL) break;
    SStreamTask* pTask = *(SStreamTask**)pIter;
+    if (atomic_load_8(&pTask->taskStatus) == TASK_STATUS__DROPPING) {
+      continue;
+    }
    if (pTask->inputType != STREAM_INPUT__DATA_SUBMIT) continue;

    if (!failed) {
@ -468,7 +512,7 @@ int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* pReq) {
        continue;
      }

-      if (streamLaunchByWrite(pTask, TD_VID(pTq->pVnode), &pTq->pVnode->msgCb) < 0) {
+      if (streamLaunchByWrite(pTask, TD_VID(pTq->pVnode)) < 0) {
        continue;
      }
    } else {
@ -489,7 +533,10 @@ int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg) {
  SStreamTaskRunReq* pReq = pMsg->pCont;
  int32_t            taskId = pReq->taskId;
  SStreamTask*       pTask = *(SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamTaskProcessRunReq(pTask, &pTq->pVnode->msgCb);
+  if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+    return 0;
+  }
+  streamProcessRunReq(pTask);
  return 0;
 }

@ -503,11 +550,14 @@ int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg) {
  tDecodeStreamDispatchReq(&decoder, &req);
  int32_t      taskId = req.taskId;
  SStreamTask* pTask = *(SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  SRpcMsg      rsp = {
-           .info = pMsg->info,
-           .code = 0,
+  if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+    return 0;
+  }
+  SRpcMsg rsp = {
+      .info = pMsg->info,
+      .code = 0,
  };
-  streamProcessDispatchReq(pTask, &pTq->pVnode->msgCb, &req, &rsp);
+  streamProcessDispatchReq(pTask, &req, &rsp);
  return 0;
 }

@ -515,7 +565,10 @@ int32_t tqProcessTaskRecoverReq(STQ* pTq, SRpcMsg* pMsg) {
  SStreamTaskRecoverReq* pReq = pMsg->pCont;
  int32_t                taskId = pReq->taskId;
  SStreamTask*           pTask = *(SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamProcessRecoverReq(pTask, &pTq->pVnode->msgCb, pReq, pMsg);
+  if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+    return 0;
+  }
+  streamProcessRecoverReq(pTask, pReq, pMsg);
  return 0;
 }

@ -523,7 +576,10 @@ int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
  SStreamDispatchRsp* pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
  int32_t             taskId = pRsp->taskId;
  SStreamTask*        pTask = *(SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamProcessDispatchRsp(pTask, &pTq->pVnode->msgCb, pRsp);
+  if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+    return 0;
+  }
+  streamProcessDispatchRsp(pTask, pRsp);
  return 0;
 }

@ -531,16 +587,32 @@ int32_t tqProcessTaskRecoverRsp(STQ* pTq, SRpcMsg* pMsg) {
  SStreamTaskRecoverRsp* pRsp = pMsg->pCont;
  int32_t                taskId = pRsp->taskId;
  SStreamTask*           pTask = *(SStreamTask**)taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
+  if (atomic_load_8(&pTask->taskStatus) != TASK_STATUS__NORMAL) {
+    return 0;
+  }
  streamProcessRecoverRsp(pTask, pRsp);
  return 0;
 }

 int32_t tqProcessTaskDropReq(STQ* pTq, char* msg, int32_t msgLen) {
  SVDropStreamTaskReq* pReq = (SVDropStreamTaskReq*)msg;
+
+  SStreamTask* pTask = *(SStreamTask**)taosHashGet(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;
+
+#if 0
  int32_t              code = taosHashRemove(pTq->pStreamTasks, &pReq->taskId, sizeof(int32_t));
+  // set status dropping
  ASSERT(code == 0);
  if (code == 0) {
    // sendrsp
  }
  return code;
+#endif
 }
--- a/source/dnode/vnode/src/tq/tqPush.c
+++ b/source/dnode/vnode/src/tq/tqPush.c
@ -45,9 +45,9 @@ static int32_t tqLoopExecFromQueue(STQ* pTq, STqHandle* pHandle, SStreamDataSubm
 int32_t tqExecFromInputQ(STQ* pTq, STqHandle* pHandle) {
  SMqDataBlkRsp rsp = {0};
  // 1. guard and set status executing
-  int8_t execStatus =
-      atomic_val_compare_exchange_8(&pHandle->pushHandle.execStatus, TASK_STATUS__IDLE, TASK_STATUS__EXECUTING);
-  if (execStatus == TASK_STATUS__IDLE) {
+  int8_t execStatus = atomic_val_compare_exchange_8(&pHandle->pushHandle.execStatus, TASK_EXEC_STATUS__IDLE,
+                                                    TASK_EXEC_STATUS__EXECUTING);
+  if (execStatus == TASK_EXEC_STATUS__IDLE) {
    SStreamDataSubmit* pSubmit = NULL;
    // 2. check processedVer
    // 2.1. if not missed, get msg from queue
@ -68,18 +68,18 @@ int32_t tqExecFromInputQ(STQ* pTq, STqHandle* pHandle) {
      goto SEND_RSP;
    }
    // set exec status closing
-    atomic_store_8(&pHandle->pushHandle.execStatus, TASK_STATUS__CLOSING);
+    atomic_store_8(&pHandle->pushHandle.execStatus, TASK_EXEC_STATUS__CLOSING);
    // second run
    if (tqLoopExecFromQueue(pTq, pHandle, &pSubmit, &rsp) == 0) {
      goto SEND_RSP;
    }
    // set exec status idle
-    atomic_store_8(&pHandle->pushHandle.execStatus, TASK_STATUS__IDLE);
+    atomic_store_8(&pHandle->pushHandle.execStatus, TASK_EXEC_STATUS__IDLE);
  }
 SEND_RSP:
  // 4. if get result
  // 4.1 set exec input status blocked and exec status idle
-  atomic_store_8(&pHandle->pushHandle.execStatus, TASK_STATUS__IDLE);
+  atomic_store_8(&pHandle->pushHandle.execStatus, TASK_EXEC_STATUS__IDLE);
  // 4.2 rpc send
  rsp.rspOffset = pHandle->pushHandle.processedVer;
  /*if (tqSendPollRsp(pTq, pMsg, pReq, &rsp) < 0) {*/
@ -150,7 +150,7 @@ int32_t tqEnqueueAll(STQ* pTq, SSubmitReq* pReq) {
      continue;
    }
    int8_t execStatus = atomic_load_8(&pHandle->pushHandle.execStatus);
-    if (execStatus == TASK_STATUS__IDLE || execStatus == TASK_STATUS__CLOSING) {
+    if (execStatus == TASK_EXEC_STATUS__IDLE || execStatus == TASK_EXEC_STATUS__CLOSING) {
      tqSendExecReq(pTq, pHandle);
    }
  }
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@ -42,6 +42,25 @@ int64_t tqFetchLog(STQ* pTq, STqHandle* pHandle, int64_t* fetchOffset, SWalHead*
      code = 0;
      goto END;
    } else {
+      if (pHandle->fetchMeta) {
+        SWalReadHead* pHead = &((*ppHeadWithCkSum)->head);
+        if (pHead->msgType == TDMT_VND_CREATE_STB || pHead->msgType == TDMT_VND_ALTER_STB ||
+            pHead->msgType == TDMT_VND_DROP_STB || pHead->msgType == TDMT_VND_CREATE_TABLE ||
+            pHead->msgType == TDMT_VND_ALTER_TABLE || pHead->msgType == TDMT_VND_DROP_TABLE ||
+            pHead->msgType == TDMT_VND_DROP_TTL_TABLE) {
+          code = walFetchBody(pHandle->pWalReader, ppHeadWithCkSum);
+
+          if (code < 0) {
+            ASSERT(0);
+            *fetchOffset = offset;
+            code = -1;
+            goto END;
+          }
+          *fetchOffset = offset;
+          code = 0;
+          goto END;
+        }
+      }
      code = walSkipFetchBody(pHandle->pWalReader, *ppHeadWithCkSum);
      if (code < 0) {
        ASSERT(0);
--- a/source/dnode/vnode/src/tq/tqSink.c
+++ b/source/dnode/vnode/src/tq/tqSink.c
@ -16,7 +16,7 @@
 #include "tq.h"

 SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, bool createTb, int64_t suid,
-                                   const char* stbFullName, int32_t vgId) {
+                            const char* stbFullName, int32_t vgId) {
  SSubmitReq* ret = NULL;
  SArray*     tagArray = taosArrayInit(1, sizeof(STagVal));
  if (!tagArray) {
@ -80,11 +80,10 @@ SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, boo
  ret->length = sizeof(SSubmitReq);
  ret->numOfBlocks = htonl(sz);

-  void* submitBlk = POINTER_SHIFT(ret, sizeof(SSubmitReq));
+  SSubmitBlk* blkHead = POINTER_SHIFT(ret, sizeof(SSubmitReq));
  for (int32_t i = 0; i < sz; i++) {
    SSDataBlock* pDataBlock = taosArrayGet(pBlocks, i);

-    SSubmitBlk* blkHead = submitBlk;
    blkHead->numOfRows = htons(pDataBlock->info.rows);
    blkHead->sversion = htonl(pTSchema->version);
    // TODO
@ -97,7 +96,7 @@ SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, boo
    /*blkHead->dataLen = htonl(rows * maxLen);*/
    blkHead->dataLen = 0;

-    void* blockData = POINTER_SHIFT(submitBlk, sizeof(SSubmitBlk));
+    void* blkSchema = POINTER_SHIFT(blkHead, sizeof(SSubmitBlk));

    int32_t schemaLen = 0;
    if (createTb) {
@ -135,7 +134,7 @@ SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, boo
      }

      SEncoder encoder = {0};
-      tEncoderInit(&encoder, blockData, schemaLen);
+      tEncoderInit(&encoder, blkSchema, schemaLen);
      code = tEncodeSVCreateTbReq(&encoder, &createTbReq);
      tEncoderClear(&encoder);
      tdDestroySVCreateTbReq(&createTbReq);
@ -148,7 +147,7 @@ SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, boo
    }
    blkHead->schemaLen = htonl(schemaLen);

-    STSRow* rowData = POINTER_SHIFT(blockData, schemaLen);
+    STSRow* rowData = POINTER_SHIFT(blkSchema, schemaLen);

    for (int32_t j = 0; j < rows; j++) {
      SRowBuilder rb = {0};
@ -174,8 +173,7 @@ SSubmitReq* tdBlockToSubmit(const SArray* pBlocks, const STSchema* pTSchema, boo
    blkHead->dataLen = htonl(dataLen);

    ret->length += sizeof(SSubmitBlk) + schemaLen + dataLen;
-    blkHead = POINTER_SHIFT(blkHead, schemaLen + dataLen);
-    /*submitBlk = blkHead;*/
+    blkHead = POINTER_SHIFT(blkHead, sizeof(SSubmitBlk) + schemaLen + dataLen);
  }

  ret->length = htonl(ret->length);
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@ -1066,11 +1066,11 @@ static int32_t getFileIdFromKey(TSKEY key, int32_t daysPerFile, int32_t precisio
  }

  int64_t fid = (int64_t)(key / (daysPerFile * tsTickPerMin[precision]));  // set the starting fileId
-  if (fid < 0L && llabs(fid) > INT32_MAX) {                                // data value overflow for INT32
+  if (fid < 0LL && llabs(fid) > INT32_MAX) {                                // data value overflow for INT32
    fid = INT32_MIN;
  }

-  if (fid > 0L && fid > INT32_MAX) {
+  if (fid > 0LL && fid > INT32_MAX) {
    fid = INT32_MAX;
  }

--- a/source/dnode/vnode/src/vnd/vnodeQuery.c
+++ b/source/dnode/vnode/src/vnd/vnodeQuery.c
@ -124,6 +124,115 @@ _exit:
  return TSDB_CODE_SUCCESS;
 }

+int vnodeGetTableCfg(SVnode *pVnode, SRpcMsg *pMsg) {
+  STableCfgReq   cfgReq = {0};
+  STableCfgRsp   cfgRsp = {0};
+  SMetaReader    mer1 = {0};
+  SMetaReader    mer2 = {0};
+  char           tableFName[TSDB_TABLE_FNAME_LEN];
+  SRpcMsg        rpcMsg;
+  int32_t        code = 0;
+  int32_t        rspLen = 0;
+  void          *pRsp = NULL;
+  SSchemaWrapper schema = {0};
+  SSchemaWrapper schemaTag = {0};
+
+  // decode req
+  if (tDeserializeSTableCfgReq(pMsg->pCont, pMsg->contLen, &cfgReq) != 0) {
+    code = TSDB_CODE_INVALID_MSG;
+    goto _exit;
+  }
+
+  strcpy(cfgRsp.tbName, cfgReq.tbName);
+  memcpy(cfgRsp.dbFName, cfgReq.dbFName, sizeof(cfgRsp.dbFName));
+
+  sprintf(tableFName, "%s.%s", cfgReq.dbFName, cfgReq.tbName);
+  code = vnodeValidateTableHash(pVnode, tableFName);
+  if (code) {
+    goto _exit;
+  }
+
+  // query meta
+  metaReaderInit(&mer1, pVnode->pMeta, 0);
+
+  if (metaGetTableEntryByName(&mer1, cfgReq.tbName) < 0) {
+    code = terrno;
+    goto _exit;
+  }
+
+  cfgRsp.tableType = mer1.me.type;
+
+  if (mer1.me.type == TSDB_SUPER_TABLE) {
+    code = TSDB_CODE_VND_HASH_MISMATCH;
+    goto _exit;
+  } else if (mer1.me.type == TSDB_CHILD_TABLE) {
+    metaReaderInit(&mer2, pVnode->pMeta, 0);
+    if (metaGetTableEntryByUid(&mer2, mer1.me.ctbEntry.suid) < 0) goto _exit;
+
+    strcpy(cfgRsp.stbName, mer2.me.name);
+    schema = mer2.me.stbEntry.schemaRow;
+    schemaTag = mer2.me.stbEntry.schemaTag;
+    cfgRsp.ttl = mer1.me.ctbEntry.ttlDays;
+    cfgRsp.commentLen = mer1.me.ctbEntry.commentLen;
+    if (mer1.me.ctbEntry.commentLen > 0) {
+      cfgRsp.pComment = strdup(mer1.me.ctbEntry.comment);
+    }
+    STag *pTag = (STag *)mer1.me.ctbEntry.pTags;
+    cfgRsp.tagsLen = pTag->len;
+    cfgRsp.pTags = taosMemoryMalloc(cfgRsp.tagsLen);
+    memcpy(cfgRsp.pTags, pTag, cfgRsp.tagsLen);
+  } else if (mer1.me.type == TSDB_NORMAL_TABLE) {
+    schema = mer1.me.ntbEntry.schemaRow;
+    cfgRsp.ttl = mer1.me.ntbEntry.ttlDays;
+    cfgRsp.commentLen = mer1.me.ntbEntry.commentLen;
+    if (mer1.me.ntbEntry.commentLen > 0) {
+      cfgRsp.pComment = strdup(mer1.me.ntbEntry.comment);
+    }
+  } else {
+    ASSERT(0);
+  }
+
+  cfgRsp.numOfTags = schemaTag.nCols;
+  cfgRsp.numOfColumns = schema.nCols;
+  cfgRsp.pSchemas = (SSchema *)taosMemoryMalloc(sizeof(SSchema) * (cfgRsp.numOfColumns + cfgRsp.numOfTags));
+
+  memcpy(cfgRsp.pSchemas, schema.pSchema, sizeof(SSchema) * schema.nCols);
+  if (schemaTag.nCols) {
+    memcpy(cfgRsp.pSchemas + schema.nCols, schemaTag.pSchema, sizeof(SSchema) * schemaTag.nCols);
+  }
+
+  // encode and send response
+  rspLen = tSerializeSTableCfgRsp(NULL, 0, &cfgRsp);
+  if (rspLen < 0) {
+    code = TSDB_CODE_INVALID_MSG;
+    goto _exit;
+  }
+
+  pRsp = rpcMallocCont(rspLen);
+  if (pRsp == NULL) {
+    code = TSDB_CODE_OUT_OF_MEMORY;
+    goto _exit;
+  }
+  tSerializeSTableCfgRsp(pRsp, rspLen, &cfgRsp);
+
+_exit:
+  rpcMsg.info = pMsg->info;
+  rpcMsg.pCont = pRsp;
+  rpcMsg.contLen = rspLen;
+  rpcMsg.code = code;
+
+  if (code) {
+    qError("get table %s cfg failed cause of %s", cfgReq.tbName, tstrerror(code));
+  }
+
+  tmsgSendRsp(&rpcMsg);
+
+  tFreeSTableCfgRsp(&cfgRsp);
+  metaReaderClear(&mer2);
+  metaReaderClear(&mer1);
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad) {
  pLoad->vgId = TD_VID(pVnode);
  pLoad->syncState = syncGetMyRole(pVnode->sync);
@ -157,4 +266,4 @@ tsdbReaderT tsdbQueryCacheLast(SVnode *pVnode, SQueryTableDataCond *pCond, STabl
  return tsdbQueryCacheLastT(pVnode->pTsdb, pCond, groupList, qId, pMemRef);
 #endif
  return 0;
-}
+}
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@ -106,7 +106,7 @@ int32_t vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRp
  int32_t len;
  int32_t ret;

-  vError("vgId:%d, start to process write request %s, index:%" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
+  vTrace("vgId:%d, start to process write request %s, index:%" PRId64, TD_VID(pVnode), TMSG_INFO(pMsg->msgType),
         version);

  pVnode->state.applied = version;
@ -167,12 +167,12 @@ int32_t vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRp
      }
      break;
    case TDMT_STREAM_TASK_DEPLOY: {
-      if (tqProcessTaskDeploy(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)),
-                              pMsg->contLen - sizeof(SMsgHead)) < 0) {
+      if (tqProcessTaskDeployReq(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)),
+                                 pMsg->contLen - sizeof(SMsgHead)) < 0) {
        goto _err;
      }
    } break;
-    case TDMT_VND_STREAM_TASK_DROP: {
+    case TDMT_STREAM_TASK_DROP: {
      if (tqProcessTaskDropReq(pVnode->pTq, pMsg->pCont, pMsg->contLen) < 0) {
        goto _err;
      }
@ -255,6 +255,8 @@ int32_t vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
      return qWorkerProcessHbMsg(pVnode, pVnode->pQuery, pMsg, 0);
    case TDMT_VND_TABLE_META:
      return vnodeGetTableMeta(pVnode, pMsg);
+    case TDMT_VND_TABLE_CFG:
+      return vnodeGetTableCfg(pVnode, pMsg);
    case TDMT_VND_CONSUME:
      return tqProcessPollReq(pVnode->pTq, pMsg, pInfo->workerId);
    case TDMT_STREAM_TASK_RUN:
@ -304,18 +306,17 @@ void vnodeUpdateMetaRsp(SVnode *pVnode, STableMetaRsp *pMetaRsp) {
  pMetaRsp->precision = pVnode->config.tsdbCfg.precision;
 }

-static int32_t vnodeProcessDropTtlTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp){
-
+static int32_t vnodeProcessDropTtlTbReq(SVnode *pVnode, int64_t version, void *pReq, int32_t len, SRpcMsg *pRsp) {
  SArray *tbUids = taosArrayInit(8, sizeof(int64_t));
  if (tbUids == NULL) return TSDB_CODE_OUT_OF_MEMORY;

-  int32_t t = ntohl(*(int32_t*)pReq);
+  int32_t t = ntohl(*(int32_t *)pReq);
  vError("rec ttl time:%d", t);
  int32_t ret = metaTtlDropTable(pVnode->pMeta, t, tbUids);
-  if(ret != 0){
+  if (ret != 0) {
    goto end;
  }
-  if(taosArrayGetSize(tbUids) > 0){
+  if (taosArrayGetSize(tbUids) > 0) {
    tqUpdateTbUidList(pVnode->pTq, tbUids, false);
  }

--- a/source/dnode/vnode/src/vnd/vnodeSync.c
+++ b/source/dnode/vnode/src/vnd/vnodeSync.c
@ -119,7 +119,7 @@ static int32_t vnodeProcessAlterReplicaReq(SVnode *pVnode, SRpcMsg *pMsg) {
 }

 void vnodeProposeMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
-  SVnode * pVnode = pInfo->ahandle;
+  SVnode  *pVnode = pInfo->ahandle;
  int32_t  vgId = pVnode->config.vgId;
  int32_t  code = 0;
  SRpcMsg *pMsg = NULL;
@ -174,7 +174,7 @@ void vnodeProposeMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
 }

 void vnodeApplyMsg(SQueueInfo *pInfo, STaosQall *qall, int32_t numOfMsgs) {
-  SVnode * pVnode = pInfo->ahandle;
+  SVnode  *pVnode = pInfo->ahandle;
  int32_t  vgId = pVnode->config.vgId;
  int32_t  code = 0;
  SRpcMsg *pMsg = NULL;
@ -211,21 +211,23 @@ int32_t vnodeProcessSyncReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
    SSyncNode *pSyncNode = syncNodeAcquire(pVnode->sync);
    assert(pSyncNode != NULL);

-    ESyncState state = syncGetMyRole(pVnode->sync);
-    SyncTerm   currentTerm = syncGetMyTerm(pVnode->sync);
-
    SMsgHead *pHead = pMsg->pCont;
+    STraceId *trace = &pMsg->info.traceId;

-    char  logBuf[512] = {0};
-    char *syncNodeStr = sync2SimpleStr(pVnode->sync);
-    snprintf(logBuf, sizeof(logBuf), "==vnodeProcessSyncReq== msgType:%d, syncNode: %s", pMsg->msgType, syncNodeStr);
-    static int64_t vndTick = 0;
-    STraceId *     trace = &pMsg->info.traceId;
-    if (++vndTick % 10 == 1) {
-      vGTrace("sync trace msg:%s, %s", TMSG_INFO(pMsg->msgType), syncNodeStr);
-    }
-    syncRpcMsgLog2(logBuf, pMsg);
-    taosMemoryFree(syncNodeStr);
+    do {
+      char          *syncNodeStr = sync2SimpleStr(pVnode->sync);
+      static int64_t vndTick = 0;
+      if (++vndTick % 10 == 1) {
+        vGTrace("vgId:%d, sync heartbeat msg:%s, %s", syncGetVgId(pVnode->sync), TMSG_INFO(pMsg->msgType), syncNodeStr);
+      }
+      if (gRaftDetailLog) {
+        char logBuf[512] = {0};
+        snprintf(logBuf, sizeof(logBuf), "==vnodeProcessSyncReq== msgType:%d, syncNode: %s", pMsg->msgType,
+                 syncNodeStr);
+        syncRpcMsgLog2(logBuf, pMsg);
+      }
+      taosMemoryFree(syncNodeStr);
+    } while (0);

    SRpcMsg *pRpcMsg = pMsg;

@ -334,7 +336,7 @@ static void vnodeSyncReconfig(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SReCon
  SVnode *pVnode = pFsm->data;

  SRpcMsg rpcMsg = {.msgType = pMsg->msgType, .contLen = pMsg->contLen};
-  syncGetAndDelRespRpc(pVnode->sync, cbMeta.seqNum, &rpcMsg.info);
+  syncGetAndDelRespRpc(pVnode->sync, cbMeta.newCfgSeqNum, &rpcMsg.info);
  rpcMsg.info.conn.applyIndex = cbMeta.index;

  STraceId *trace = (STraceId *)&pMsg->info.traceId;
@ -348,7 +350,7 @@ static void vnodeSyncReconfig(struct SSyncFSM *pFsm, const SRpcMsg *pMsg, SReCon
 }

 static void vnodeSyncCommitMsg(SSyncFSM *pFsm, const SRpcMsg *pMsg, SFsmCbMeta cbMeta) {
-  SVnode *  pVnode = pFsm->data;
+  SVnode   *pVnode = pFsm->data;
  SSnapshot snapshot = {0};
  SyncIndex beginIndex = SYNC_INDEX_INVALID;
  char      logBuf[256] = {0};
--- a/source/libs/catalog/inc/catalogInt.h
+++ b/source/libs/catalog/inc/catalogInt.h
@ -71,11 +71,18 @@ typedef enum {
  CTG_TASK_GET_TB_META,
  CTG_TASK_GET_TB_HASH,
  CTG_TASK_GET_TB_INDEX,
+  CTG_TASK_GET_TB_CFG,
  CTG_TASK_GET_INDEX,
  CTG_TASK_GET_UDF,
  CTG_TASK_GET_USER,
 } CTG_TASK_TYPE;

+typedef enum {
+  CTG_TASK_LAUNCHED = 1,
+  CTG_TASK_DONE,
+} CTG_TASK_STATUS;
+
+
 typedef struct SCtgDebug {
  bool     lockEnable;
  bool     cacheEnable;
@ -102,6 +109,12 @@ typedef struct SCtgTbIndexCtx {
  SName* pName;
 } SCtgTbIndexCtx;

+typedef struct SCtgTbCfgCtx {
+  SName*       pName;
+  int32_t      tbType;
+  SVgroupInfo* pVgInfo;
+} SCtgTbCfgCtx;
+
 typedef struct SCtgDbVgCtx {
  char dbFName[TSDB_DB_FNAME_LEN];
 } SCtgDbVgCtx;
@ -190,7 +203,9 @@ typedef struct SCtgJob {
  SArray*           pTasks;
  int32_t           taskDone;
  SMetaData         jobRes;
-
+  int32_t           taskIdx;
+  SRWLatch          taskLock;
+  
  uint64_t          queryId;
  SCatalog*         pCtg; 
  SRequestConnInfo  conn;
@ -206,6 +221,7 @@ typedef struct SCtgJob {
  int32_t           userNum;
  int32_t           dbInfoNum;
  int32_t           tbIndexNum;
+  int32_t           tbCfgNum;
 } SCtgJob;

 typedef struct SCtgMsgCtx {
@ -215,24 +231,44 @@ typedef struct SCtgMsgCtx {
  char* target;
 } SCtgMsgCtx;

+typedef struct SCtgTask SCtgTask;
+typedef int32_t (*ctgSubTaskCbFp)(SCtgTask*);
+
+typedef struct SCtgSubRes {
+  CTG_TASK_TYPE  type;
+  int32_t        code;
+  void*          res;
+  ctgSubTaskCbFp fp;
+} SCtgSubRes;
+
 typedef struct SCtgTask {
-  CTG_TASK_TYPE type;
-  int32_t       taskId;
-  SCtgJob*      pJob;
-  void*         taskCtx;
-  SCtgMsgCtx    msgCtx;
-  int32_t       code;
-  void*         res;
+  CTG_TASK_TYPE   type;
+  int32_t         taskId;
+  SCtgJob*        pJob;
+  void*           taskCtx;
+  SCtgMsgCtx      msgCtx;
+  int32_t         code;
+  void*           res;
+  CTG_TASK_STATUS status;
+  SRWLatch        lock;
+  SArray*         pParents;
+  SCtgSubRes      subRes;
 } SCtgTask;

+typedef int32_t (*ctgInitTaskFp)(SCtgJob*, int32_t, void*);
 typedef int32_t (*ctgLanchTaskFp)(SCtgTask*);
 typedef int32_t (*ctgHandleTaskMsgRspFp)(SCtgTask*, int32_t, const SDataBuf *, int32_t);
 typedef int32_t (*ctgDumpTaskResFp)(SCtgTask*);
+typedef int32_t (*ctgCloneTaskResFp)(SCtgTask*, void**);
+typedef int32_t (*ctgCompTaskFp)(SCtgTask*, void*, bool*);

 typedef struct SCtgAsyncFps {
-  ctgLanchTaskFp launchFp;
+  ctgInitTaskFp         initFp;
+  ctgLanchTaskFp        launchFp;
  ctgHandleTaskMsgRspFp handleRspFp;
-  ctgDumpTaskResFp dumpResFp;
+  ctgDumpTaskResFp      dumpResFp;
+  ctgCompTaskFp         compFp;
+  ctgCloneTaskResFp     cloneFp;
 } SCtgAsyncFps;

 typedef struct SCtgApiStat {
@ -520,6 +556,8 @@ int32_t ctgDropTbIndexEnqueue(SCatalog* pCtg, SName* pName, bool syncOp);
 int32_t ctgOpDropTbIndex(SCtgCacheOperation *operation);
 int32_t ctgOpUpdateTbIndex(SCtgCacheOperation *operation);
 int32_t ctgOpClearCache(SCtgCacheOperation *operation);
+int32_t ctgReadTbTypeFromCache(SCatalog* pCtg, char* dbFName, char *tableName, int32_t *tbType);
+int32_t ctgGetTbHashVgroupFromCache(SCatalog *pCtg, const SName *pTableName, SVgroupInfo **pVgroup);



@ -535,10 +573,14 @@ int32_t ctgGetUserDbAuthFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const
 int32_t ctgGetTbMetaFromMnodeImpl(SCatalog* pCtg, SRequestConnInfo *pConn, char *dbFName, char* tbName, STableMetaOutput* out, SCtgTask* pTask);
 int32_t ctgGetTbMetaFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableMetaOutput* out, SCtgTask* pTask);
 int32_t ctgGetTbMetaFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, SVgroupInfo *vgroupInfo, STableMetaOutput* out, SCtgTask* pTask);
+int32_t ctgGetTableCfgFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, SVgroupInfo *vgroupInfo, STableCfg **out, SCtgTask* pTask);
+int32_t ctgGetTableCfgFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableCfg **out, SCtgTask* pTask);

 int32_t ctgInitJob(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgJob** job, uint64_t reqId, const SCatalogReq* pReq, catalogCallback fp, void* param, int32_t* taskNum);
 int32_t ctgLaunchJob(SCtgJob *pJob);
 int32_t ctgMakeAsyncRes(SCtgJob *pJob);
+int32_t ctgLaunchSubTask(SCtgTask *pTask, CTG_TASK_TYPE type, ctgSubTaskCbFp fp, void* param);
+int32_t ctgGetTbCfgCb(SCtgTask *pTask);

 int32_t ctgCloneVgInfo(SDBVgInfo *src, SDBVgInfo **dst);
 int32_t ctgCloneMetaOutput(STableMetaOutput *output, STableMetaOutput **pOutput);
@ -559,6 +601,7 @@ char *  ctgTaskTypeStr(CTG_TASK_TYPE type);
 int32_t ctgUpdateSendTargetInfo(SMsgSendInfo *pMsgSendInfo, int32_t msgType, SCtgTask* pTask);
 int32_t ctgCloneTableIndex(SArray* pIndex, SArray** pRes);
 void    ctgFreeSTableIndex(void *info);
+void    ctgClearSubTaskRes(SCtgSubRes *pRes);


 extern SCatalogMgmt gCtgMgmt;
--- a/source/libs/catalog/src/catalog.c
+++ b/source/libs/catalog/src/catalog.c
@ -22,36 +22,6 @@

 SCatalogMgmt gCtgMgmt = {0};

-int32_t ctgRemoveTbMetaFromCache(SCatalog* pCtg, SName* pTableName, bool syncReq) {
-  int32_t       code = 0;
-  STableMeta*   tblMeta = NULL;
-  SCtgTbMetaCtx tbCtx = {0};
-  tbCtx.flag = CTG_FLAG_UNKNOWN_STB;
-  tbCtx.pName = pTableName;
-
-  CTG_ERR_JRET(ctgReadTbMetaFromCache(pCtg, &tbCtx, &tblMeta));
-
-  if (NULL == tblMeta) {
-    ctgDebug("table already not in cache, db:%s, tblName:%s", pTableName->dbname, pTableName->tname);
-    return TSDB_CODE_SUCCESS;
-  }
-
-  char dbFName[TSDB_DB_FNAME_LEN];
-  tNameGetFullDbName(pTableName, dbFName);
-
-  if (TSDB_SUPER_TABLE == tblMeta->tableType) {
-    CTG_ERR_JRET(ctgDropStbMetaEnqueue(pCtg, dbFName, tbCtx.tbInfo.dbId, pTableName->tname, tblMeta->suid, syncReq));
-  } else {
-    CTG_ERR_JRET(ctgDropTbMetaEnqueue(pCtg, dbFName, tbCtx.tbInfo.dbId, pTableName->tname, syncReq));
-  }
-
-_return:
-
-  taosMemoryFreeClear(tblMeta);
-
-  CTG_RET(code);
-}
-
 int32_t ctgGetDBVgInfo(SCatalog* pCtg, SRequestConnInfo *pConn, const char* dbFName, SCtgDBCache** dbCache, SDBVgInfo **pInfo) {
  int32_t code = 0;

@ -212,29 +182,6 @@ _return:
  CTG_RET(code);
 }

-int32_t ctgGetTbMetaFromCache(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgTbMetaCtx* ctx, STableMeta** pTableMeta) {
-  if (CTG_IS_SYS_DBNAME(ctx->pName->dbname)) {
-    CTG_FLAG_SET_SYS_DB(ctx->flag);
-  }
-
-  CTG_ERR_RET(ctgReadTbMetaFromCache(pCtg, ctx, pTableMeta));
-
-  if (*pTableMeta) {
-    if (CTG_FLAG_MATCH_STB(ctx->flag, (*pTableMeta)->tableType) &&
-        ((!CTG_FLAG_IS_FORCE_UPDATE(ctx->flag)) || (CTG_FLAG_IS_SYS_DB(ctx->flag)))) {
-      return TSDB_CODE_SUCCESS;
-    }
-
-    taosMemoryFreeClear(*pTableMeta);
-  }
-
-  if (CTG_FLAG_IS_UNKNOWN_STB(ctx->flag)) {
-    CTG_FLAG_SET_STB(ctx->flag, ctx->tbInfo.tbType);
-  }
-
-  return TSDB_CODE_SUCCESS;
-}
-
 int32_t ctgGetTbMeta(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgTbMetaCtx* ctx, STableMeta** pTableMeta) {
  int32_t code = 0;
  STableMetaOutput *output = NULL;
@ -381,6 +328,23 @@ _return:
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgGetTbType(SCatalog* pCtg, SRequestConnInfo *pConn, SName* pTableName, int32_t *tbType) {
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pTableName, dbFName);
+  CTG_ERR_RET(ctgReadTbTypeFromCache(pCtg, dbFName, pTableName->tname, tbType));
+  if (*tbType > 0) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  STableMeta* pMeta = NULL;
+  CTG_ERR_RET(catalogGetTableMeta(pCtg, pConn, pTableName, &pMeta));
+
+  *tbType = pMeta->tableType;
+  taosMemoryFree(pMeta);
+
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t ctgGetTbIndex(SCatalog* pCtg, SRequestConnInfo *pConn, SName* pTableName, SArray** pRes) {
  CTG_ERR_RET(ctgReadTbIndexFromCache(pCtg, pTableName, pRes));
  if (*pRes) {
@ -419,6 +383,20 @@ _return:
  CTG_RET(code);
 }

+int32_t ctgGetTbCfg(SCatalog* pCtg, SRequestConnInfo *pConn, SName* pTableName, STableCfg** pCfg) {
+  int32_t tbType = 0;
+  CTG_ERR_RET(ctgGetTbType(pCtg, pConn, pTableName, &tbType));
+
+  if (TSDB_SUPER_TABLE == tbType) {
+    CTG_ERR_RET(ctgGetTableCfgFromMnode(pCtg, pConn, pTableName, pCfg, NULL));
+  } else {
+    SVgroupInfo vgroupInfo = {0};
+    CTG_ERR_RET(catalogGetTableHashVgroup(pCtg, pConn, pTableName, &vgroupInfo));
+    CTG_ERR_RET(ctgGetTableCfgFromVnode(pCtg, pConn, pTableName, &vgroupInfo, pCfg, NULL));
+  }
+
+  CTG_RET(TSDB_CODE_SUCCESS);
+}

 int32_t ctgGetTbDistVgInfo(SCatalog* pCtg, SRequestConnInfo *pConn, SName* pTableName, SArray** pVgList) {
  STableMeta *tbMeta = NULL;
@ -1121,6 +1099,10 @@ _return:
  CTG_API_LEAVE(TSDB_CODE_SUCCESS);
 }

+int32_t catalogGetDnodeList(SCatalog* pCatalog, SRequestConnInfo* pConn, SArray** pDnodeList) {
+  return TSDB_CODE_CTG_INVALID_INPUT;
+}
+
 int32_t catalogGetExpiredSTables(SCatalog* pCtg, SSTableVersion **stables, uint32_t *num) {
  CTG_API_ENTER();

@ -1207,6 +1189,23 @@ _return:
  CTG_API_LEAVE(code);
 }

+int32_t catalogRefreshGetTableCfg(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableCfg** pCfg) {
+  CTG_API_ENTER();
+  
+  if (NULL == pCtg || NULL == pConn || NULL == pTableName || NULL == pCfg) {
+    CTG_API_LEAVE(TSDB_CODE_CTG_INVALID_INPUT);
+  }
+
+  int32_t code = 0;
+  CTG_ERR_JRET(catalogRemoveTableMeta(pCtg, (SName*)pTableName));
+
+  CTG_ERR_JRET(ctgGetTbCfg(pCtg, pConn, (SName*)pTableName, pCfg));
+
+_return:
+
+  CTG_API_LEAVE(code);
+}
+
 int32_t catalogGetUdfInfo(SCatalog* pCtg, SRequestConnInfo *pConn, const char* funcName, SFuncInfo* pInfo) {
  CTG_API_ENTER();
  
--- a/source/libs/catalog/src/ctgAsync.c
+++ b/source/libs/catalog/src/ctgAsync.c
@ -20,7 +20,8 @@
 #include "systable.h"
 #include "tref.h"

-int32_t ctgInitGetTbMetaTask(SCtgJob *pJob, int32_t taskIdx, SName *name) {
+int32_t ctgInitGetTbMetaTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  SName *name = (SName*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_TB_META;
@ -44,12 +45,13 @@ int32_t ctgInitGetTbMetaTask(SCtgJob *pJob, int32_t taskIdx, SName *name) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, tbName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, tbName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetDbVgTask(SCtgJob *pJob, int32_t taskIdx, char *dbFName) {
+int32_t ctgInitGetDbVgTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  char *dbFName = (char*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_DB_VGROUP;
@ -67,12 +69,13 @@ int32_t ctgInitGetDbVgTask(SCtgJob *pJob, int32_t taskIdx, char *dbFName) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, dbFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), dbFName);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, dbFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), dbFName);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetDbCfgTask(SCtgJob *pJob, int32_t taskIdx, char *dbFName) {
+int32_t ctgInitGetDbCfgTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  char *dbFName = (char*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_DB_CFG;
@ -90,12 +93,13 @@ int32_t ctgInitGetDbCfgTask(SCtgJob *pJob, int32_t taskIdx, char *dbFName) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, dbFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), dbFName);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, dbFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), dbFName);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetDbInfoTask(SCtgJob *pJob, int32_t taskIdx, char *dbFName) {
+int32_t ctgInitGetDbInfoTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  char *dbFName = (char*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_DB_INFO;
@ -113,13 +117,14 @@ int32_t ctgInitGetDbInfoTask(SCtgJob *pJob, int32_t taskIdx, char *dbFName) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, dbFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), dbFName);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, dbFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), dbFName);

  return TSDB_CODE_SUCCESS;
 }


-int32_t ctgInitGetTbHashTask(SCtgJob *pJob, int32_t taskIdx, SName *name) {
+int32_t ctgInitGetTbHashTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  SName *name = (SName*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_TB_HASH;
@ -143,12 +148,12 @@ int32_t ctgInitGetTbHashTask(SCtgJob *pJob, int32_t taskIdx, SName *name) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, tableName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, tableName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetQnodeTask(SCtgJob *pJob, int32_t taskIdx) {
+int32_t ctgInitGetQnodeTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_QNODE;
@ -163,7 +168,8 @@ int32_t ctgInitGetQnodeTask(SCtgJob *pJob, int32_t taskIdx) {
  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetIndexTask(SCtgJob *pJob, int32_t taskIdx, char *name) {
+int32_t ctgInitGetIndexTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  char *name = (char*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_INDEX;
@ -181,12 +187,13 @@ int32_t ctgInitGetIndexTask(SCtgJob *pJob, int32_t taskIdx, char *name) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, indexFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, indexFName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetUdfTask(SCtgJob *pJob, int32_t taskIdx, char *name) {
+int32_t ctgInitGetUdfTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  char *name = (char*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_UDF;
@ -204,12 +211,13 @@ int32_t ctgInitGetUdfTask(SCtgJob *pJob, int32_t taskIdx, char *name) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, udfName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, udfName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetUserTask(SCtgJob *pJob, int32_t taskIdx, SUserAuthInfo *user) {
+int32_t ctgInitGetUserTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  SUserAuthInfo *user = (SUserAuthInfo*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_USER;
@ -227,12 +235,13 @@ int32_t ctgInitGetUserTask(SCtgJob *pJob, int32_t taskIdx, SUserAuthInfo *user)

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, user:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), user->user);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, user:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), user->user);

  return TSDB_CODE_SUCCESS;
 }

-int32_t ctgInitGetTbIndexTask(SCtgJob *pJob, int32_t taskIdx, SName *name) {
+int32_t ctgInitGetTbIndexTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  SName *name = (SName*)param;
  SCtgTask task = {0};

  task.type = CTG_TASK_GET_TB_INDEX;
@ -255,11 +264,41 @@ int32_t ctgInitGetTbIndexTask(SCtgJob *pJob, int32_t taskIdx, SName *name) {

  taosArrayPush(pJob->pTasks, &task);

-  qDebug("QID:0x%" PRIx64 " the %d task type %s initialized, tbName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, tbName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);

  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgInitGetTbCfgTask(SCtgJob *pJob, int32_t taskIdx, void* param) {
+  SName *name = (SName*)param;
+  SCtgTask task = {0};
+
+  task.type = CTG_TASK_GET_TB_CFG;
+  task.taskId = taskIdx;
+  task.pJob = pJob;
+
+  task.taskCtx = taosMemoryCalloc(1, sizeof(SCtgTbCfgCtx));
+  if (NULL == task.taskCtx) {
+    CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
+  }
+
+  SCtgTbCfgCtx* ctx = task.taskCtx;
+  ctx->pName = taosMemoryMalloc(sizeof(*name));
+  if (NULL == ctx->pName) {
+    taosMemoryFree(task.taskCtx);
+    CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
+  }
+  
+  memcpy(ctx->pName, name, sizeof(*name));
+
+  taosArrayPush(pJob->pTasks, &task);
+
+  qDebug("QID:0x%" PRIx64 " the %dth task type %s initialized, tbName:%s", pJob->queryId, taskIdx, ctgTaskTypeStr(task.type), name->tname);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+

 int32_t ctgHandleForceUpdate(SCatalog* pCtg, int32_t taskNum, SCtgJob *pJob, const SCatalogReq* pReq) {
  SHashObj* pDb = taosHashInit(taskNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
@ -296,6 +335,13 @@ int32_t ctgHandleForceUpdate(SCatalog* pCtg, int32_t taskNum, SCtgJob *pJob, con
    taosHashPut(pDb, dbFName, strlen(dbFName), dbFName, TSDB_DB_FNAME_LEN);
  }

+  for (int32_t i = 0; i < pJob->tbCfgNum; ++i) {
+    SName* name = taosArrayGet(pReq->pTableCfg, i);
+    char dbFName[TSDB_DB_FNAME_LEN];
+    tNameGetFullDbName(name, dbFName);
+    taosHashPut(pDb, dbFName, strlen(dbFName), dbFName, TSDB_DB_FNAME_LEN);
+  }
+
  char* dbFName = taosHashIterate(pDb, NULL);
  while (dbFName) {
    ctgDropDbVgroupEnqueue(pCtg, dbFName, true);
@ -304,39 +350,31 @@ int32_t ctgHandleForceUpdate(SCatalog* pCtg, int32_t taskNum, SCtgJob *pJob, con

  taosHashCleanup(pDb);

-  int32_t tbNum = pJob->tbMetaNum + pJob->tbHashNum;
-  if (tbNum > 0) {
-    if (tbNum > pJob->tbMetaNum && tbNum > pJob->tbHashNum) {
-      SHashObj* pTb = taosHashInit(tbNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
-      for (int32_t i = 0; i < pJob->tbMetaNum; ++i) {
-        SName* name = taosArrayGet(pReq->pTableMeta, i);
-        taosHashPut(pTb, name, sizeof(SName), name, sizeof(SName));
-      }
-      
-      for (int32_t i = 0; i < pJob->tbHashNum; ++i) {
-        SName* name = taosArrayGet(pReq->pTableHash, i);
-        taosHashPut(pTb, name, sizeof(SName), name, sizeof(SName));
-      }
-
-      SName* name = taosHashIterate(pTb, NULL);
-      while (name) {
-        catalogRemoveTableMeta(pCtg, name);
-        name = taosHashIterate(pTb, name);
-      }
-
-      taosHashCleanup(pTb);
-    } else {
-      for (int32_t i = 0; i < pJob->tbMetaNum; ++i) {
-        SName* name = taosArrayGet(pReq->pTableMeta, i);
-        catalogRemoveTableMeta(pCtg, name);
-      }
-      
-      for (int32_t i = 0; i < pJob->tbHashNum; ++i) {
-        SName* name = taosArrayGet(pReq->pTableHash, i);
-        catalogRemoveTableMeta(pCtg, name);
-      }
-    }
+  // REFRESH TABLE META
+  SHashObj* pTb = taosHashInit(taskNum, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), false, HASH_NO_LOCK);
+  for (int32_t i = 0; i < pJob->tbMetaNum; ++i) {
+    SName* name = taosArrayGet(pReq->pTableMeta, i);
+    taosHashPut(pTb, name, sizeof(SName), name, sizeof(SName));
  }
+  
+  for (int32_t i = 0; i < pJob->tbHashNum; ++i) {
+    SName* name = taosArrayGet(pReq->pTableHash, i);
+    taosHashPut(pTb, name, sizeof(SName), name, sizeof(SName));
+  }
+
+  for (int32_t i = 0; i < pJob->tbCfgNum; ++i) {
+    SName* name = taosArrayGet(pReq->pTableCfg, i);
+    taosHashPut(pTb, name, sizeof(SName), name, sizeof(SName));
+  }
+
+  SName* name = taosHashIterate(pTb, NULL);
+  while (name) {
+    catalogRemoveTableMeta(pCtg, name);
+    name = taosHashIterate(pTb, name);
+  }
+
+  taosHashCleanup(pTb);
+

  for (int32_t i = 0; i < pJob->tbIndexNum; ++i) {
    SName* name = taosArrayGet(pReq->pTableIndex, i);
@ -346,6 +384,20 @@ int32_t ctgHandleForceUpdate(SCatalog* pCtg, int32_t taskNum, SCtgJob *pJob, con
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgInitTask(SCtgJob *pJob, CTG_TASK_TYPE type, void* param, int32_t *taskId) {
+  int32_t tid = atomic_fetch_add_32(&pJob->taskIdx, 1);
+
+  CTG_LOCK(CTG_WRITE, &pJob->taskLock);
+  CTG_ERR_RET((*gCtgAsyncFps[type].initFp)(pJob, tid, param));
+  CTG_UNLOCK(CTG_WRITE, &pJob->taskLock);
+
+  if (taskId) {
+    *taskId = tid;
+  }
+  
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t ctgInitJob(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgJob** job, uint64_t reqId, const SCatalogReq* pReq, catalogCallback fp, void* param, int32_t* taskNum) {
  int32_t code = 0;
  int32_t tbMetaNum = (int32_t)taosArrayGetSize(pReq->pTableMeta);
@ -358,8 +410,9 @@ int32_t ctgInitJob(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgJob** job, uint6
  int32_t userNum = (int32_t)taosArrayGetSize(pReq->pUser);
  int32_t dbInfoNum = (int32_t)taosArrayGetSize(pReq->pDbInfo);
  int32_t tbIndexNum = (int32_t)taosArrayGetSize(pReq->pTableIndex);
+  int32_t tbCfgNum = (int32_t)taosArrayGetSize(pReq->pTableCfg);

-  *taskNum = tbMetaNum + dbVgNum + udfNum + tbHashNum + qnodeNum + dbCfgNum + indexNum + userNum + dbInfoNum + tbIndexNum;
+  *taskNum = tbMetaNum + dbVgNum + udfNum + tbHashNum + qnodeNum + dbCfgNum + indexNum + userNum + dbInfoNum + tbIndexNum + tbCfgNum;
  if (*taskNum <= 0) {
    ctgDebug("Empty input for job, no need to retrieve meta, reqId:0x%" PRIx64, reqId);
    return TSDB_CODE_SUCCESS;
@ -389,6 +442,7 @@ int32_t ctgInitJob(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgJob** job, uint6
  pJob->userNum = userNum;
  pJob->dbInfoNum = dbInfoNum;
  pJob->tbIndexNum = tbIndexNum;
+  pJob->tbCfgNum = tbCfgNum;

  pJob->pTasks = taosArrayInit(*taskNum, sizeof(SCtgTask));

@ -401,54 +455,58 @@ int32_t ctgInitJob(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgJob** job, uint6
    CTG_ERR_JRET(ctgHandleForceUpdate(pCtg, *taskNum, pJob, pReq));
  }

-  int32_t taskIdx = 0;
  for (int32_t i = 0; i < dbVgNum; ++i) {
    char* dbFName = taosArrayGet(pReq->pDbVgroup, i);
-    CTG_ERR_JRET(ctgInitGetDbVgTask(pJob, taskIdx++, dbFName));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_DB_VGROUP, dbFName, NULL));
  }

  for (int32_t i = 0; i < dbCfgNum; ++i) {
    char* dbFName = taosArrayGet(pReq->pDbCfg, i);
-    CTG_ERR_JRET(ctgInitGetDbCfgTask(pJob, taskIdx++, dbFName));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_DB_CFG, dbFName, NULL));
  }

  for (int32_t i = 0; i < dbInfoNum; ++i) {
    char* dbFName = taosArrayGet(pReq->pDbInfo, i);
-    CTG_ERR_JRET(ctgInitGetDbInfoTask(pJob, taskIdx++, dbFName));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_DB_INFO, dbFName, NULL));
  }

  for (int32_t i = 0; i < tbMetaNum; ++i) {
    SName* name = taosArrayGet(pReq->pTableMeta, i);
-    CTG_ERR_JRET(ctgInitGetTbMetaTask(pJob, taskIdx++, name));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_TB_META, name, NULL));
  }

  for (int32_t i = 0; i < tbHashNum; ++i) {
    SName* name = taosArrayGet(pReq->pTableHash, i);
-    CTG_ERR_JRET(ctgInitGetTbHashTask(pJob, taskIdx++, name));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_TB_HASH, name, NULL));
  }

  for (int32_t i = 0; i < tbIndexNum; ++i) {
    SName* name = taosArrayGet(pReq->pTableIndex, i);
-    CTG_ERR_JRET(ctgInitGetTbIndexTask(pJob, taskIdx++, name));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_TB_INDEX, name, NULL));
+  }
+
+  for (int32_t i = 0; i < tbCfgNum; ++i) {
+    SName* name = taosArrayGet(pReq->pTableCfg, i);
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_TB_CFG, name, NULL));
  }

  for (int32_t i = 0; i < indexNum; ++i) {
    char* indexName = taosArrayGet(pReq->pIndex, i);
-    CTG_ERR_JRET(ctgInitGetIndexTask(pJob, taskIdx++, indexName));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_INDEX, indexName, NULL));
  }

  for (int32_t i = 0; i < udfNum; ++i) {
    char* udfName = taosArrayGet(pReq->pUdf, i);
-    CTG_ERR_JRET(ctgInitGetUdfTask(pJob, taskIdx++, udfName));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_UDF, udfName, NULL));
  }

  for (int32_t i = 0; i < userNum; ++i) {
    SUserAuthInfo* user = taosArrayGet(pReq->pUser, i);
-    CTG_ERR_JRET(ctgInitGetUserTask(pJob, taskIdx++, user));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_USER, user, NULL));
  }

  if (qnodeNum) {
-    CTG_ERR_JRET(ctgInitGetQnodeTask(pJob, taskIdx++));
+    CTG_ERR_JRET(ctgInitTask(pJob, CTG_TASK_GET_QNODE, NULL, NULL));
  }

  pJob->refId = taosAddRef(gCtgMgmt.jobPool, pJob);
@ -528,6 +586,21 @@ int32_t ctgDumpTbIndexRes(SCtgTask* pTask) {
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgDumpTbCfgRes(SCtgTask* pTask) {
+  SCtgJob* pJob = pTask->pJob;
+  if (NULL == pJob->jobRes.pTableCfg) {
+    pJob->jobRes.pTableCfg = taosArrayInit(pJob->tbCfgNum, sizeof(SMetaRes));
+    if (NULL == pJob->jobRes.pTableCfg) {
+      CTG_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
+    }
+  }
+
+  SMetaRes res = {.code = pTask->code, .pRes = pTask->res};
+  taosArrayPush(pJob->jobRes.pTableCfg, &res);
+
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t ctgDumpIndexRes(SCtgTask* pTask) {
  SCtgJob* pJob = pTask->pJob;
  if (NULL == pJob->jobRes.pIndex) {
@ -618,13 +691,48 @@ int32_t ctgDumpUserRes(SCtgTask* pTask) {
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgInvokeSubCb(SCtgTask *pTask) {
+  int32_t code = 0;
+  
+  CTG_LOCK(CTG_WRITE, &pTask->lock);
+  
+  int32_t parentNum = taosArrayGetSize(pTask->pParents);
+  for (int32_t i = 0; i < parentNum; ++i) {
+    SCtgTask* pParent = taosArrayGetP(pTask->pParents, i);
+    
+    pParent->subRes.code = pTask->code;
+    if (TSDB_CODE_SUCCESS == pTask->code) {
+      code = (*gCtgAsyncFps[pTask->type].cloneFp)(pTask, &pParent->subRes.res);
+      if (code) {
+        pParent->subRes.code = code;
+      }
+    }
+    
+    CTG_ERR_JRET(pParent->subRes.fp(pParent));
+  }
+  
+_return:
+
+  CTG_UNLOCK(CTG_WRITE, &pTask->lock);
+
+  CTG_RET(code);  
+}
+
+
 int32_t ctgHandleTaskEnd(SCtgTask* pTask, int32_t rspCode) {
  SCtgJob* pJob = pTask->pJob;
  int32_t code = 0;

+  if (CTG_TASK_DONE == pTask->status) {
+    return TSDB_CODE_SUCCESS;
+  }
+
  qDebug("QID:0x%" PRIx64 " task %d end with res %s", pJob->queryId, pTask->taskId, tstrerror(rspCode));

  pTask->code = rspCode;
+  pTask->status = CTG_TASK_DONE;
+
+  ctgInvokeSubCb(pTask);

  int32_t taskDone = atomic_add_fetch_32(&pJob->taskDone, 1);
  if (taskDone < taosArrayGetSize(pJob->pTasks)) {
@ -636,7 +744,7 @@ int32_t ctgHandleTaskEnd(SCtgTask* pTask, int32_t rspCode) {

 _return:

-  qDebug("QID:0x%" PRIx64 " user callback with rsp %s", pJob->queryId, tstrerror(code));
+  qDebug("QID:0x%" PRIx64 " ctg call user callback with rsp %s", pJob->queryId, tstrerror(code));

  (*pJob->userFp)(&pJob->jobRes, pJob->userParam, code);

@ -802,11 +910,12 @@ int32_t ctgHandleGetDbVgRsp(SCtgTask* pTask, int32_t reqType, const SDataBuf *pM
  switch (reqType) {
    case TDMT_MND_USE_DB: {
      SUseDbOutput* pOut = (SUseDbOutput*)pTask->msgCtx.out;
-
-      CTG_ERR_JRET(ctgGenerateVgList(pCtg, pOut->dbVgroup->vgHash, (SArray**)&pTask->res));
+      SDBVgInfo* pDb = NULL;
      
-      CTG_ERR_JRET(ctgUpdateVgroupEnqueue(pCtg, ctx->dbFName, pOut->dbId, pOut->dbVgroup, false));
-      pOut->dbVgroup = NULL;
+      CTG_ERR_JRET(ctgGenerateVgList(pCtg, pOut->dbVgroup->vgHash, (SArray**)&pTask->res));
+
+      CTG_ERR_JRET(cloneDbVgInfo(pOut->dbVgroup, &pDb));
+      CTG_ERR_JRET(ctgUpdateVgroupEnqueue(pCtg, ctx->dbFName, pOut->dbId, pDb, false));

      break;
    }
@ -874,6 +983,7 @@ int32_t ctgHandleGetTbIndexRsp(SCtgTask* pTask, int32_t reqType, const SDataBuf
  CTG_ERR_JRET(ctgUpdateTbIndexEnqueue(pTask->pJob->pCtg, (STableIndex**)&pTask->msgCtx.out, false));
  
 _return:
+
  if (TSDB_CODE_MND_DB_INDEX_NOT_EXIST == code) {
    code = TSDB_CODE_SUCCESS;
  }
@ -882,6 +992,18 @@ _return:
  CTG_RET(code);
 }

+int32_t ctgHandleGetTbCfgRsp(SCtgTask* pTask, int32_t reqType, const SDataBuf *pMsg, int32_t rspCode) {
+  int32_t code = 0;
+  CTG_ERR_JRET(ctgProcessRspMsg(&pTask->msgCtx.out, reqType, pMsg->pData, pMsg->len, rspCode, pTask->msgCtx.target));
+
+  TSWAP(pTask->res, pTask->msgCtx.out);
+  
+_return:
+
+  ctgHandleTaskEnd(pTask, code);
+
+  CTG_RET(code);
+}

 int32_t ctgHandleGetDbCfgRsp(SCtgTask* pTask, int32_t reqType, const SDataBuf *pMsg, int32_t rspCode) {
  int32_t code = 0;
@ -1138,6 +1260,48 @@ int32_t ctgLaunchGetTbIndexTask(SCtgTask *pTask) {
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgLaunchGetTbCfgTask(SCtgTask *pTask) {
+  int32_t code = 0;
+  SCatalog* pCtg = pTask->pJob->pCtg; 
+  SRequestConnInfo* pConn = &pTask->pJob->conn;
+  SCtgTbCfgCtx* pCtx = (SCtgTbCfgCtx*)pTask->taskCtx;
+  SArray* pRes = NULL;
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pCtx->pName, dbFName);
+
+  if (pCtx->tbType <= 0) {
+    CTG_ERR_JRET(ctgReadTbTypeFromCache(pCtg, dbFName, pCtx->pName->tname, &pCtx->tbType));
+    if (pCtx->tbType <= 0) {
+      CTG_ERR_JRET(ctgLaunchSubTask(pTask, CTG_TASK_GET_TB_META, ctgGetTbCfgCb, pCtx->pName));
+      return TSDB_CODE_SUCCESS;
+    }
+  }
+
+  if (TSDB_SUPER_TABLE == pCtx->tbType) {
+    CTG_ERR_JRET(ctgGetTableCfgFromMnode(pCtg, pConn, pCtx->pName, NULL, pTask));
+  } else {
+    if (NULL == pCtx->pVgInfo) {
+      CTG_ERR_JRET(ctgGetTbHashVgroupFromCache(pCtg, pCtx->pName, &pCtx->pVgInfo));
+      if (NULL == pCtx->pVgInfo) {
+        CTG_ERR_JRET(ctgLaunchSubTask(pTask, CTG_TASK_GET_DB_VGROUP, ctgGetTbCfgCb, dbFName));
+        return TSDB_CODE_SUCCESS;
+      }
+    }
+    
+    CTG_ERR_JRET(ctgGetTableCfgFromVnode(pCtg, pConn, pCtx->pName, pCtx->pVgInfo, NULL, pTask));
+  }
+
+  return TSDB_CODE_SUCCESS;
+
+_return:
+
+  if (CTG_TASK_LAUNCHED == pTask->status) {
+    ctgHandleTaskEnd(pTask, code);
+  }
+  
+  CTG_RET(code);
+}
+

 int32_t ctgLaunchGetQnodeTask(SCtgTask *pTask) {
  SCatalog* pCtg = pTask->pJob->pCtg; 
@ -1244,17 +1408,70 @@ int32_t ctgRelaunchGetTbMetaTask(SCtgTask *pTask) {
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgGetTbCfgCb(SCtgTask *pTask) {
+  int32_t code = 0;
+  
+  CTG_ERR_JRET(pTask->subRes.code);
+
+  SCtgTbCfgCtx* pCtx = (SCtgTbCfgCtx*)pTask->taskCtx;
+  if (CTG_TASK_GET_TB_META == pTask->subRes.type) {
+    pCtx->tbType = ((STableMeta*)pTask->subRes.res)->tableType;
+  } else if (CTG_TASK_GET_DB_VGROUP == pTask->subRes.type) {
+    SDBVgInfo* pDb = (SDBVgInfo*)pTask->subRes.res;
+    
+    pCtx->pVgInfo = taosMemoryCalloc(1, sizeof(SVgroupInfo));
+    CTG_ERR_JRET(ctgGetVgInfoFromHashValue(pTask->pJob->pCtg, pDb, pCtx->pName, pCtx->pVgInfo));
+  }
+
+  CTG_RET(ctgLaunchGetTbCfgTask(pTask));
+
+_return:
+
+  CTG_RET(ctgHandleTaskEnd(pTask, pTask->subRes.code));
+}
+
+int32_t ctgCompDbVgTasks(SCtgTask* pTask, void* param, bool* equal) {
+  SCtgDbVgCtx* ctx = pTask->taskCtx;
+
+  *equal = (0 == strcmp(ctx->dbFName, param));
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
+int32_t ctgCompTbMetaTasks(SCtgTask* pTask, void* param, bool* equal) {
+  SCtgTbMetaCtx* ctx = pTask->taskCtx;
+
+  *equal = tNameTbNameEqual(ctx->pName, (SName*)param);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t ctgCloneTbMeta(SCtgTask* pTask, void** pRes) {
+  STableMeta* pMeta = (STableMeta*)pTask->res;
+
+  CTG_RET(cloneTableMeta(pMeta, (STableMeta**)pRes));
+}
+
+int32_t ctgCloneDbVg(SCtgTask* pTask, void** pRes) {
+  SUseDbOutput* pOut = (SUseDbOutput*)pTask->msgCtx.out;
+
+  CTG_RET(cloneDbVgInfo(pOut->dbVgroup, (SDBVgInfo**)pRes));
+}
+
+
 SCtgAsyncFps gCtgAsyncFps[] = {
-  {ctgLaunchGetQnodeTask,   ctgHandleGetQnodeRsp,   ctgDumpQnodeRes},
-  {ctgLaunchGetDbVgTask,    ctgHandleGetDbVgRsp,    ctgDumpDbVgRes},
-  {ctgLaunchGetDbCfgTask,   ctgHandleGetDbCfgRsp,   ctgDumpDbCfgRes},
-  {ctgLaunchGetDbInfoTask,  ctgHandleGetDbInfoRsp,  ctgDumpDbInfoRes},
-  {ctgLaunchGetTbMetaTask,  ctgHandleGetTbMetaRsp,  ctgDumpTbMetaRes},
-  {ctgLaunchGetTbHashTask,  ctgHandleGetTbHashRsp,  ctgDumpTbHashRes},
-  {ctgLaunchGetTbIndexTask, ctgHandleGetTbIndexRsp, ctgDumpTbIndexRes},
-  {ctgLaunchGetIndexTask,   ctgHandleGetIndexRsp,   ctgDumpIndexRes},
-  {ctgLaunchGetUdfTask,     ctgHandleGetUdfRsp,     ctgDumpUdfRes},
-  {ctgLaunchGetUserTask,    ctgHandleGetUserRsp,    ctgDumpUserRes},
+  {ctgInitGetQnodeTask,   ctgLaunchGetQnodeTask,   ctgHandleGetQnodeRsp,   ctgDumpQnodeRes,   NULL,               NULL},
+  {ctgInitGetDbVgTask,    ctgLaunchGetDbVgTask,    ctgHandleGetDbVgRsp,    ctgDumpDbVgRes,    ctgCompDbVgTasks,   ctgCloneDbVg},
+  {ctgInitGetDbCfgTask,   ctgLaunchGetDbCfgTask,   ctgHandleGetDbCfgRsp,   ctgDumpDbCfgRes,   NULL,               NULL},
+  {ctgInitGetDbInfoTask,  ctgLaunchGetDbInfoTask,  ctgHandleGetDbInfoRsp,  ctgDumpDbInfoRes,  NULL,               NULL},
+  {ctgInitGetTbMetaTask,  ctgLaunchGetTbMetaTask,  ctgHandleGetTbMetaRsp,  ctgDumpTbMetaRes,  ctgCompTbMetaTasks, ctgCloneTbMeta},
+  {ctgInitGetTbHashTask,  ctgLaunchGetTbHashTask,  ctgHandleGetTbHashRsp,  ctgDumpTbHashRes,  NULL,               NULL},
+  {ctgInitGetTbIndexTask, ctgLaunchGetTbIndexTask, ctgHandleGetTbIndexRsp, ctgDumpTbIndexRes, NULL,               NULL},
+  {ctgInitGetTbCfgTask,   ctgLaunchGetTbCfgTask,   ctgHandleGetTbCfgRsp,   ctgDumpTbCfgRes,   NULL,               NULL},
+  {ctgInitGetIndexTask,   ctgLaunchGetIndexTask,   ctgHandleGetIndexRsp,   ctgDumpIndexRes,   NULL,               NULL},
+  {ctgInitGetUdfTask,     ctgLaunchGetUdfTask,     ctgHandleGetUdfRsp,     ctgDumpUdfRes,     NULL,               NULL},
+  {ctgInitGetUserTask,    ctgLaunchGetUserTask,    ctgHandleGetUserRsp,    ctgDumpUserRes,    NULL,               NULL},
 };

 int32_t ctgMakeAsyncRes(SCtgJob *pJob) {
@ -1269,6 +1486,86 @@ int32_t ctgMakeAsyncRes(SCtgJob *pJob) {
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgSearchExistingTask(SCtgJob *pJob, CTG_TASK_TYPE type, void* param, int32_t* taskId) {
+  bool      equal = false;
+  SCtgTask* pTask = NULL;
+  int32_t   code = 0;
+  
+  CTG_LOCK(CTG_READ, &pJob->taskLock);
+  
+  int32_t taskNum = taosArrayGetSize(pJob->pTasks);
+  for (int32_t i = 0; i < taskNum; ++i) {
+    pTask = taosArrayGet(pJob->pTasks, i);
+    if (type !=  pTask->type) {
+      continue;
+    }
+    
+    CTG_ERR_JRET((*gCtgAsyncFps[type].compFp)(pTask, param, &equal));
+    if (equal) {
+      break;
+    }
+  }
+
+_return:
+
+  CTG_UNLOCK(CTG_READ, &pJob->taskLock);
+  if (equal) {
+    *taskId = pTask->taskId;
+  }
+
+  CTG_RET(code);
+}
+
+int32_t ctgSetSubTaskCb(SCtgTask *pSub, SCtgTask *pTask) {
+  int32_t code = 0;
+  
+  CTG_LOCK(CTG_WRITE, &pSub->lock);
+  if (CTG_TASK_DONE == pSub->status) {
+    pTask->subRes.code = pSub->code;
+    CTG_ERR_JRET((*gCtgAsyncFps[pTask->type].cloneFp)(pSub, &pTask->subRes.res));
+    CTG_ERR_JRET(pTask->subRes.fp(pTask));
+  } else {
+    if (NULL == pSub->pParents) {
+      pSub->pParents = taosArrayInit(4, POINTER_BYTES);
+    }
+
+    taosArrayPush(pSub->pParents, &pTask);
+  }
+
+_return:
+
+  CTG_UNLOCK(CTG_WRITE, &pSub->lock);
+
+  CTG_RET(code);  
+}
+
+
+int32_t ctgLaunchSubTask(SCtgTask *pTask, CTG_TASK_TYPE type, ctgSubTaskCbFp fp, void* param) {
+  SCtgJob* pJob = pTask->pJob;
+  int32_t  subTaskId = -1;
+  bool     newTask = false;
+
+  ctgClearSubTaskRes(&pTask->subRes);
+  pTask->subRes.type = type;
+  pTask->subRes.fp = fp;
+  
+  CTG_ERR_RET(ctgSearchExistingTask(pJob, type, param, &subTaskId));
+  if (subTaskId < 0) {
+    CTG_ERR_RET(ctgInitTask(pJob, type, param, &subTaskId));
+    newTask = true;
+  }
+  
+  SCtgTask* pSub = taosArrayGet(pJob->pTasks, subTaskId);
+
+  CTG_ERR_RET(ctgSetSubTaskCb(pSub, pTask));
+
+  if (newTask) {
+    CTG_ERR_RET((*gCtgAsyncFps[pSub->type].launchFp)(pSub));
+    pSub->status = CTG_TASK_LAUNCHED;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}

 int32_t ctgLaunchJob(SCtgJob *pJob) {
  int32_t taskNum = taosArrayGetSize(pJob->pTasks);
@ -1278,6 +1575,7 @@ int32_t ctgLaunchJob(SCtgJob *pJob) {

    qDebug("QID:0x%" PRIx64 " ctg start to launch task %d", pJob->queryId, pTask->taskId);
    CTG_ERR_RET((*gCtgAsyncFps[pTask->type].launchFp)(pTask));
+    pTask->status = CTG_TASK_LAUNCHED;
  }

  return TSDB_CODE_SUCCESS;
--- a/source/libs/catalog/src/ctgCache.c
+++ b/source/libs/catalog/src/ctgCache.c
@ -326,6 +326,7 @@ _return:

 int32_t ctgAcquireTbIndexFromCache(SCatalog* pCtg, char *dbFName, char* tbName, SCtgDBCache **pDb, SCtgTbCache** pTb) {
  SCtgDBCache *dbCache = NULL;
+  SCtgTbCache* pCache = NULL;
  ctgAcquireDBCache(pCtg, dbFName, &dbCache);
  if (NULL == dbCache) {
    ctgDebug("db %s not in cache", dbFName);
@ -333,7 +334,7 @@ int32_t ctgAcquireTbIndexFromCache(SCatalog* pCtg, char *dbFName, char* tbName,
  }
  
  int32_t sz = 0;
-  SCtgTbCache* pCache = taosHashAcquire(dbCache->tbCache, tbName, strlen(tbName));
+  pCache = taosHashAcquire(dbCache->tbCache, tbName, strlen(tbName));
  if (NULL == pCache) {
    ctgDebug("tb %s not in cache, dbFName:%s", tbName, dbFName);
    goto _return;
@ -540,10 +541,10 @@ int32_t ctgReadTbVerFromCache(SCatalog *pCtg, SName *pTableName, int32_t *sver,
 }


-int32_t ctgReadTbTypeFromCache(SCatalog* pCtg, char* dbFName, char *tableName, int32_t *tbType) {
+int32_t ctgReadTbTypeFromCache(SCatalog* pCtg, char* dbFName, char *tbName, int32_t *tbType) {
  SCtgDBCache *dbCache = NULL;
  SCtgTbCache *tbCache = NULL;  
-  CTG_ERR_RET(ctgAcquireTbMetaFromCache(pCtg, dbFName, tableName, &dbCache, &tbCache));
+  CTG_ERR_RET(ctgAcquireTbMetaFromCache(pCtg, dbFName, tbName, &dbCache, &tbCache));
  if (NULL == tbCache) {
    ctgReleaseTbMetaToCache(pCtg, dbCache, tbCache);
    return TSDB_CODE_SUCCESS;
@ -552,7 +553,7 @@ int32_t ctgReadTbTypeFromCache(SCatalog* pCtg, char* dbFName, char *tableName, i
  *tbType = tbCache->pMeta->tableType;
  ctgReleaseTbMetaToCache(pCtg, dbCache, tbCache);

-  ctgDebug("Got tb %s tbType %d from cache, dbFName:%s", tableName, *tbType, dbFName);  
+  ctgDebug("Got tb %s tbType %d from cache, dbFName:%s", tbName, *tbType, dbFName);  
  
  return TSDB_CODE_SUCCESS;
 }
@ -1394,7 +1395,7 @@ int32_t ctgWriteTbMetaToCache(SCatalog *pCtg, SCtgDBCache *dbCache, char *dbFNam
  if (orig) {
    origType = orig->tableType;

-    if (origType == meta->tableType && orig->uid == meta->uid && orig->sversion >= meta->sversion && orig->tversion >= meta->tversion) {
+    if (origType == meta->tableType && orig->uid == meta->uid && (origType == TSDB_CHILD_TABLE || (orig->sversion >= meta->sversion && orig->tversion >= meta->tversion))) {
      taosMemoryFree(meta);
      ctgDebug("ignore table %s meta update", tbName);
      return TSDB_CODE_SUCCESS;
@ -2060,4 +2061,92 @@ int32_t ctgStartUpdateThread() {
 }


+int32_t ctgGetTbMetaFromCache(SCatalog* pCtg, SRequestConnInfo *pConn, SCtgTbMetaCtx* ctx, STableMeta** pTableMeta) {
+  if (CTG_IS_SYS_DBNAME(ctx->pName->dbname)) {
+    CTG_FLAG_SET_SYS_DB(ctx->flag);
+  }
+
+  CTG_ERR_RET(ctgReadTbMetaFromCache(pCtg, ctx, pTableMeta));
+
+  if (*pTableMeta) {
+    if (CTG_FLAG_MATCH_STB(ctx->flag, (*pTableMeta)->tableType) &&
+        ((!CTG_FLAG_IS_FORCE_UPDATE(ctx->flag)) || (CTG_FLAG_IS_SYS_DB(ctx->flag)))) {
+      return TSDB_CODE_SUCCESS;
+    }
+
+    taosMemoryFreeClear(*pTableMeta);
+  }
+
+  if (CTG_FLAG_IS_UNKNOWN_STB(ctx->flag)) {
+    CTG_FLAG_SET_STB(ctx->flag, ctx->tbInfo.tbType);
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
+int32_t ctgRemoveTbMetaFromCache(SCatalog* pCtg, SName* pTableName, bool syncReq) {
+  int32_t       code = 0;
+  STableMeta*   tblMeta = NULL;
+  SCtgTbMetaCtx tbCtx = {0};
+  tbCtx.flag = CTG_FLAG_UNKNOWN_STB;
+  tbCtx.pName = pTableName;
+
+  CTG_ERR_JRET(ctgReadTbMetaFromCache(pCtg, &tbCtx, &tblMeta));
+
+  if (NULL == tblMeta) {
+    ctgDebug("table already not in cache, db:%s, tblName:%s", pTableName->dbname, pTableName->tname);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pTableName, dbFName);
+
+  if (TSDB_SUPER_TABLE == tblMeta->tableType) {
+    CTG_ERR_JRET(ctgDropStbMetaEnqueue(pCtg, dbFName, tbCtx.tbInfo.dbId, pTableName->tname, tblMeta->suid, syncReq));
+  } else {
+    CTG_ERR_JRET(ctgDropTbMetaEnqueue(pCtg, dbFName, tbCtx.tbInfo.dbId, pTableName->tname, syncReq));
+  }
+
+_return:
+
+  taosMemoryFreeClear(tblMeta);
+
+  CTG_RET(code);
+}
+
+int32_t ctgGetTbHashVgroupFromCache(SCatalog *pCtg, const SName *pTableName, SVgroupInfo **pVgroup) {
+  if (CTG_IS_SYS_DBNAME(pTableName->dbname)) {
+    ctgError("no valid vgInfo for db, dbname:%s", pTableName->dbname);
+    CTG_ERR_RET(TSDB_CODE_CTG_INVALID_INPUT);
+  }
+
+  SCtgDBCache* dbCache = NULL;
+  int32_t      code = 0;
+  char         dbFName[TSDB_DB_FNAME_LEN] = {0};
+  tNameGetFullDbName(pTableName, dbFName);
+
+  CTG_ERR_RET(ctgAcquireVgInfoFromCache(pCtg, dbFName, &dbCache));
+
+  if (NULL == dbCache) {
+    *pVgroup = NULL;
+    return TSDB_CODE_SUCCESS;
+  }
+
+  *pVgroup = taosMemoryCalloc(1, sizeof(SVgroupInfo));
+  CTG_ERR_JRET(ctgGetVgInfoFromHashValue(pCtg, dbCache->vgCache.vgInfo, pTableName, *pVgroup));
+
+_return:
+
+  if (dbCache) {
+    ctgReleaseVgInfoToCache(pCtg, dbCache);
+  }
+
+  if (code) {
+    taosMemoryFreeClear(*pVgroup);
+  }
+
+  CTG_RET(code);
+}
+

--- a/source/libs/catalog/src/ctgRemote.c
+++ b/source/libs/catalog/src/ctgRemote.c
@ -172,6 +172,39 @@ int32_t ctgProcessRspMsg(void* out, int32_t reqType, char* msg, int32_t msgSize,
      qDebug("Got table meta from vnode, tbFName:%s", target);
      break;
    }
+    case TDMT_VND_TABLE_CFG: {
+      if (TSDB_CODE_SUCCESS != rspCode) {
+        qError("error rsp for table cfg from vnode, code:%s, tbFName:%s", tstrerror(rspCode), target);
+        CTG_ERR_RET(rspCode);
+      }
+      
+      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
+      if (code) {
+        qError("Process vnode tb cfg rsp failed, code:%s, tbFName:%s", tstrerror(code), target);
+        CTG_ERR_RET(code);
+      }
+      
+      qDebug("Got table cfg from vnode, tbFName:%s", target);
+      break;
+    }
+    case TDMT_MND_TABLE_CFG: {
+      if (TSDB_CODE_SUCCESS != rspCode) {
+        qError("error rsp for stb cfg from mnode, error:%s, tbFName:%s", tstrerror(rspCode), target);
+        CTG_ERR_RET(rspCode);
+      }
+      
+      code = queryProcessMsgRsp[TMSG_INDEX(reqType)](out, msg, msgSize);
+      if (code) {
+        qError("Process mnode stb cfg rsp failed, error:%s, tbFName:%s", tstrerror(code), target);
+        CTG_ERR_RET(code);
+      }
+      
+      qDebug("Got stb cfg from mnode, tbFName:%s", target);
+      break;
+    }    
+    default:
+      qError("invalid req type %s", TMSG_INFO(reqType));
+      return TSDB_CODE_APP_ERROR;
  }

  return TSDB_CODE_SUCCESS;
@ -550,7 +583,7 @@ int32_t ctgGetUserDbAuthFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const


 int32_t ctgGetTbMetaFromMnodeImpl(SCatalog* pCtg, SRequestConnInfo *pConn, char *dbFName, char* tbName, STableMetaOutput* out, SCtgTask* pTask) {
-  SBuildTableMetaInput bInput = {.vgId = 0, .dbFName = dbFName, .tbName = tbName};
+  SBuildTableInput bInput = {.vgId = 0, .dbFName = dbFName, .tbName = tbName};
  char *msg = NULL;
  SEpSet *pVnodeEpSet = NULL;
  int32_t msgLen = 0;
@ -606,9 +639,11 @@ int32_t ctgGetTbMetaFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SNa
  sprintf(tbFName, "%s.%s", dbFName, pTableName->tname);
  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;

-  ctgDebug("try to get table meta from vnode, vgId:%d, tbFName:%s", vgroupInfo->vgId, tbFName);
+  SEp* pEp = &vgroupInfo->epSet.eps[vgroupInfo->epSet.inUse];
+  ctgDebug("try to get table meta from vnode, vgId:%d, ep num:%d, ep %s:%d, tbFName:%s", 
+           vgroupInfo->vgId, vgroupInfo->epSet.numOfEps, pEp->fqdn, pEp->port, tbFName);

-  SBuildTableMetaInput bInput = {.vgId = vgroupInfo->vgId, .dbFName = dbFName, .tbName = (char *)tNameGetTableName(pTableName)};
+  SBuildTableInput bInput = {.vgId = vgroupInfo->vgId, .dbFName = dbFName, .tbName = (char *)tNameGetTableName(pTableName)};
  char *msg = NULL;
  int32_t msgLen = 0;

@ -646,4 +681,89 @@ int32_t ctgGetTbMetaFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SNa
  return TSDB_CODE_SUCCESS;
 }

+int32_t ctgGetTableCfgFromVnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, SVgroupInfo *vgroupInfo, STableCfg **out, SCtgTask* pTask) {
+  char *msg = NULL;
+  int32_t msgLen = 0;
+  int32_t reqType = TDMT_VND_TABLE_CFG;
+  char tbFName[TSDB_TABLE_FNAME_LEN];
+  tNameExtractFullName(pTableName, tbFName);
+  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pTableName, dbFName);
+  SBuildTableInput bInput = {.vgId = vgroupInfo->vgId, .dbFName = dbFName, .tbName = (char*)pTableName->tname};
+
+  SEp* pEp = &vgroupInfo->epSet.eps[vgroupInfo->epSet.inUse];
+  ctgDebug("try to get table cfg from vnode, vgId:%d, ep num:%d, ep %s:%d, tbFName:%s", 
+           vgroupInfo->vgId, vgroupInfo->epSet.numOfEps, pEp->fqdn, pEp->port, tbFName);
+
+  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](&bInput, &msg, 0, &msgLen, mallocFp);
+  if (code) {
+    ctgError("Build get tb cfg msg failed, code:%s, tbFName:%s", tstrerror(code), tbFName);
+    CTG_ERR_RET(code);
+  }
+
+  if (pTask) {
+    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, NULL, (char*)tbFName));
+
+    SRequestConnInfo vConn = {.pTrans = pConn->pTrans, 
+                             .requestId = pConn->requestId,
+                             .requestObjRefId = pConn->requestObjRefId,
+                             .mgmtEps = vgroupInfo->epSet};    
+    CTG_RET(ctgAsyncSendMsg(pCtg, &vConn, pTask, reqType, msg, msgLen));
+  }
+  
+  SRpcMsg rpcMsg = {
+      .msgType = reqType,
+      .pCont   = msg,
+      .contLen = msgLen,
+  };
+
+  SRpcMsg rpcRsp = {0};
+  rpcSendRecv(pConn->pTrans, &vgroupInfo->epSet, &rpcMsg, &rpcRsp);
+
+  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)tbFName));
+  
+  return TSDB_CODE_SUCCESS;
+}
+
+
+int32_t ctgGetTableCfgFromMnode(SCatalog* pCtg, SRequestConnInfo *pConn, const SName* pTableName, STableCfg **out, SCtgTask* pTask) {
+  char *msg = NULL;
+  int32_t msgLen = 0;
+  int32_t reqType = TDMT_MND_TABLE_CFG;
+  char tbFName[TSDB_TABLE_FNAME_LEN];
+  tNameExtractFullName(pTableName, tbFName);
+  void*(*mallocFp)(int32_t) = pTask ? taosMemoryMalloc : rpcMallocCont;
+  char dbFName[TSDB_DB_FNAME_LEN];
+  tNameGetFullDbName(pTableName, dbFName);
+  SBuildTableInput bInput = {.vgId = 0, .dbFName = dbFName, .tbName = (char*)pTableName->tname};
+
+  ctgDebug("try to get table cfg from mnode, tbFName:%s", tbFName);
+
+  int32_t code = queryBuildMsg[TMSG_INDEX(reqType)](&bInput, &msg, 0, &msgLen, mallocFp);
+  if (code) {
+    ctgError("Build get tb cfg msg failed, code:%s, tbFName:%s", tstrerror(code), tbFName);
+    CTG_ERR_RET(code);
+  }
+
+  if (pTask) {
+    CTG_ERR_RET(ctgUpdateMsgCtx(&pTask->msgCtx, reqType, NULL, (char*)tbFName));
+    
+    CTG_RET(ctgAsyncSendMsg(pCtg, pConn, pTask, reqType, msg, msgLen));
+  }
+  
+  SRpcMsg rpcMsg = {
+      .msgType = reqType,
+      .pCont   = msg,
+      .contLen = msgLen,
+  };
+
+  SRpcMsg rpcRsp = {0};
+  rpcSendRecv(pConn->pTrans, &pConn->mgmtEps, &rpcMsg, &rpcRsp);
+
+  CTG_ERR_RET(ctgProcessRspMsg(out, reqType, rpcRsp.pCont, rpcRsp.contLen, rpcRsp.code, (char*)tbFName));
+  
+  return TSDB_CODE_SUCCESS;
+}
+

--- a/source/libs/catalog/src/ctgUtil.c
+++ b/source/libs/catalog/src/ctgUtil.c
@ -33,6 +33,10 @@ char *ctgTaskTypeStr(CTG_TASK_TYPE type) {
      return "[get table meta]";
    case CTG_TASK_GET_TB_HASH:
      return "[get table hash]";
+    case CTG_TASK_GET_TB_INDEX:
+      return "[get table index]";
+    case CTG_TASK_GET_TB_CFG:
+      return "[get table cfg]";
    case CTG_TASK_GET_INDEX:
      return "[get index]";
    case CTG_TASK_GET_UDF:
@ -96,6 +100,9 @@ void ctgFreeSMetaData(SMetaData* pData) {
  
  taosArrayDestroy(pData->pQnodeList);
  pData->pQnodeList = NULL;
+
+  taosArrayDestroy(pData->pTableCfg);
+  pData->pTableCfg = NULL;
 }

 void ctgFreeSCtgUserAuth(SCtgUserAuth *userCache) {
@ -280,6 +287,13 @@ void ctgFreeMsgCtx(SCtgMsgCtx* pCtx) {
      }
      break;
    }
+    case TDMT_VND_TABLE_CFG:
+    case TDMT_MND_TABLE_CFG: {
+      STableCfgRsp* pOut = (STableCfgRsp*)pCtx->out;
+      tFreeSTableCfgRsp(pOut);
+      taosMemoryFreeClear(pCtx->out);
+      break;
+    }
    case TDMT_MND_RETRIEVE_FUNC: {
      SFuncInfo* pOut = (SFuncInfo*)pCtx->out;
      taosMemoryFree(pOut->pCode);
@ -328,14 +342,151 @@ void ctgResetTbMetaTask(SCtgTask* pTask) {
  taosMemoryFreeClear(pTask->res);
 }

-void ctgFreeTask(SCtgTask* pTask) {
-  ctgFreeMsgCtx(&pTask->msgCtx);
-  
+void ctgFreeTaskRes(CTG_TASK_TYPE type, void **pRes) {
+  switch (type) {
+    case CTG_TASK_GET_QNODE: {
+      taosArrayDestroy((SArray*)*pRes);
+      *pRes = NULL;
+      break;
+    }
+    case CTG_TASK_GET_TB_META: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_DB_VGROUP: {
+      taosArrayDestroy((SArray*)*pRes);
+      *pRes = NULL;
+      break;
+    }
+    case CTG_TASK_GET_DB_CFG: {
+      if (*pRes) {
+        SDbCfgInfo* pInfo = (SDbCfgInfo*)*pRes;
+        taosArrayDestroy(pInfo->pRetensions);
+        taosMemoryFreeClear(*pRes);
+      }
+      break;
+    }
+    case CTG_TASK_GET_DB_INFO: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_TB_HASH: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_TB_INDEX: {
+      taosArrayDestroyEx(*pRes, tFreeSTableIndexInfo);
+      *pRes = NULL;
+      break;
+    }
+    case CTG_TASK_GET_TB_CFG: {
+      if (*pRes) {
+        STableCfg* pInfo = (STableCfg*)*pRes;
+        tFreeSTableCfgRsp(pInfo);
+        taosMemoryFreeClear(*pRes);
+      }
+      break;
+    }
+    case CTG_TASK_GET_INDEX: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_UDF: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_USER: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    default:
+      qError("invalid task type %d", type);
+      break;
+  }
+}
+
+
+void ctgFreeSubTaskRes(CTG_TASK_TYPE type, void **pRes) {
+  switch (type) {
+    case CTG_TASK_GET_QNODE: {
+      taosArrayDestroy((SArray*)*pRes);
+      *pRes = NULL;
+      break;
+    }
+    case CTG_TASK_GET_TB_META: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_DB_VGROUP: {
+      if (*pRes) {
+        SDBVgInfo* pInfo = (SDBVgInfo*)*pRes;
+        taosHashCleanup(pInfo->vgHash);
+        taosMemoryFreeClear(*pRes);
+      }
+      break;
+    }
+    case CTG_TASK_GET_DB_CFG: {
+      if (*pRes) {
+        SDbCfgInfo* pInfo = (SDbCfgInfo*)*pRes;
+        taosArrayDestroy(pInfo->pRetensions);
+        taosMemoryFreeClear(*pRes);
+      }
+      break;
+    }
+    case CTG_TASK_GET_DB_INFO: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_TB_HASH: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_TB_INDEX: {
+      taosArrayDestroyEx(*pRes, tFreeSTableIndexInfo);
+      *pRes = NULL;
+      break;
+    }
+    case CTG_TASK_GET_TB_CFG: {
+      if (*pRes) {
+        STableCfg* pInfo = (STableCfg*)*pRes;
+        tFreeSTableCfgRsp(pInfo);
+        taosMemoryFreeClear(*pRes);
+      }
+      break;
+    }
+    case CTG_TASK_GET_INDEX: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_UDF: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    case CTG_TASK_GET_USER: {
+      taosMemoryFreeClear(*pRes);
+      break;
+    }
+    default:
+      qError("invalid task type %d", type);
+      break;
+  }
+}
+
+
+void ctgClearSubTaskRes(SCtgSubRes *pRes) {
+  pRes->code = 0;
+
+  if (NULL == pRes->res) {
+    return;
+  }
+
+  ctgFreeSubTaskRes(pRes->type, &pRes->res);
+}
+
+void ctgFreeTaskCtx(SCtgTask* pTask) {
  switch (pTask->type) {
    case CTG_TASK_GET_QNODE: {
-      taosArrayDestroy((SArray*)pTask->res);
      taosMemoryFreeClear(pTask->taskCtx);      
-      pTask->res = NULL;
      break;
    }
    case CTG_TASK_GET_TB_META: {
@ -346,56 +497,49 @@ void ctgFreeTask(SCtgTask* pTask) {
        pTask->msgCtx.lastOut = NULL;
      }
      taosMemoryFreeClear(pTask->taskCtx);
-      taosMemoryFreeClear(pTask->res);
      break;
    }
    case CTG_TASK_GET_DB_VGROUP: {
-      taosArrayDestroy((SArray*)pTask->res);
      taosMemoryFreeClear(pTask->taskCtx);      
-      pTask->res = NULL;
      break;
    }
    case CTG_TASK_GET_DB_CFG: {
      taosMemoryFreeClear(pTask->taskCtx);
-      if (pTask->res) {
-        SDbCfgInfo* pInfo = (SDbCfgInfo*)pTask->res;
-        taosArrayDestroy(pInfo->pRetensions);
-        taosMemoryFreeClear(pTask->res);
-      }
      break;
    }
    case CTG_TASK_GET_DB_INFO: {
      taosMemoryFreeClear(pTask->taskCtx);      
-      taosMemoryFreeClear(pTask->res);
      break;
    }
    case CTG_TASK_GET_TB_HASH: {
      SCtgTbHashCtx* taskCtx = (SCtgTbHashCtx*)pTask->taskCtx;
      taosMemoryFreeClear(taskCtx->pName);
      taosMemoryFreeClear(pTask->taskCtx);      
-      taosMemoryFreeClear(pTask->res);
      break;
    }
    case CTG_TASK_GET_TB_INDEX: {
      SCtgTbIndexCtx* taskCtx = (SCtgTbIndexCtx*)pTask->taskCtx;
      taosMemoryFreeClear(taskCtx->pName);
      taosMemoryFreeClear(pTask->taskCtx);
-      taosArrayDestroyEx(pTask->res, tFreeSTableIndexInfo);
+      break;
+    }
+    case CTG_TASK_GET_TB_CFG: {
+      SCtgTbCfgCtx* taskCtx = (SCtgTbCfgCtx*)pTask->taskCtx;
+      taosMemoryFreeClear(taskCtx->pName);
+      taosMemoryFreeClear(taskCtx->pVgInfo);
+      taosMemoryFreeClear(pTask->taskCtx);
      break;
    }
    case CTG_TASK_GET_INDEX: {
      taosMemoryFreeClear(pTask->taskCtx);
-      taosMemoryFreeClear(pTask->res);
      break;
    }
    case CTG_TASK_GET_UDF: {
      taosMemoryFreeClear(pTask->taskCtx);
-      taosMemoryFreeClear(pTask->res);
      break;
    }
    case CTG_TASK_GET_USER: {
      taosMemoryFreeClear(pTask->taskCtx);
-      taosMemoryFreeClear(pTask->res);
      break;
    }
    default:
@ -404,6 +548,16 @@ void ctgFreeTask(SCtgTask* pTask) {
  }
 }

+
+void ctgFreeTask(SCtgTask* pTask) {
+  ctgFreeMsgCtx(&pTask->msgCtx);
+  ctgFreeTaskRes(pTask->type, &pTask->res);
+  ctgFreeTaskCtx(pTask);
+
+  taosArrayDestroy(pTask->pParents);
+  ctgClearSubTaskRes(&pTask->subRes);
+}
+
 void ctgFreeTasks(SArray* pArray) {
  if (NULL == pArray) {
    return;
--- a/source/libs/command/src/command.c
+++ b/source/libs/command/src/command.c
@ -16,6 +16,7 @@
 #include "command.h"
 #include "catalog.h"
 #include "tdatablock.h"
+#include "tglobal.h"

 static int32_t getSchemaBytes(const SSchema* pSchema) {
  switch (pSchema->type) {
@ -123,14 +124,435 @@ static int32_t execDescribe(SNode* pStmt, SRetrieveTableRsp** pRsp) {

 static int32_t execResetQueryCache() { return catalogClearCache(); }

-static int32_t execShowCreateDatabase(SShowCreateDatabaseStmt* pStmt) { return TSDB_CODE_FAILED; }

-static int32_t execShowCreateTable(SShowCreateTableStmt* pStmt) { return TSDB_CODE_FAILED; }
+static SSDataBlock* buildCreateDBResultDataBlock() {
+  SSDataBlock* pBlock = taosMemoryCalloc(1, sizeof(SSDataBlock));
+  pBlock->info.numOfCols = SHOW_CREATE_DB_RESULT_COLS;
+  pBlock->info.hasVarCol = true;

-static int32_t execShowCreateSTable(SShowCreateTableStmt* pStmt) { return TSDB_CODE_FAILED; }
+  pBlock->pDataBlock = taosArrayInit(pBlock->info.numOfCols, sizeof(SColumnInfoData));
+
+  SColumnInfoData infoData = {0};
+  infoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  infoData.info.bytes = SHOW_CREATE_DB_RESULT_FIELD1_LEN;
+
+  taosArrayPush(pBlock->pDataBlock, &infoData);
+
+  infoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  infoData.info.bytes = SHOW_CREATE_DB_RESULT_FIELD2_LEN;
+  taosArrayPush(pBlock->pDataBlock, &infoData);
+
+  return pBlock;
+}
+
+int64_t getValOfDiffPrecision(int8_t unit, int64_t val) {
+  int64_t v = 0;
+  switch (unit) {
+    case 's':
+      v = val / 1000;
+      break;
+    case 'm':
+      v = val / tsTickPerMin[TSDB_TIME_PRECISION_MILLI];
+      break;
+    case 'h':
+      v = val / (tsTickPerMin[TSDB_TIME_PRECISION_MILLI] * 60);
+      break;
+    case 'd':
+      v = val / (tsTickPerMin[TSDB_TIME_PRECISION_MILLI] * 24 * 60);
+      break;
+    case 'w':
+      v = val / (tsTickPerMin[TSDB_TIME_PRECISION_MILLI] * 24 * 60 * 7);
+      break;
+    default:
+      break;
+  }
+
+  return v;
+}
+
+char *buildRetension(SArray *pRetension) {
+  size_t size = taosArrayGetSize(pRetension);
+  if (size == 0) {
+    return NULL;
+  }
+
+  char       *p1 = taosMemoryCalloc(1, 100);
+  SRetention *p = taosArrayGet(pRetension, 0);
+
+  int32_t len = 0;
+
+  int64_t v1 = getValOfDiffPrecision(p->freqUnit, p->freq);
+  int64_t v2 = getValOfDiffPrecision(p->keepUnit, p->keep);
+  len += sprintf(p1 + len, "%" PRId64 "%c:%" PRId64 "%c", v1, p->freqUnit, v2, p->keepUnit);
+
+  if (size > 1) {
+    len += sprintf(p1 + len, ",");
+    p = taosArrayGet(pRetension, 1);
+
+    v1 = getValOfDiffPrecision(p->freqUnit, p->freq);
+    v2 = getValOfDiffPrecision(p->keepUnit, p->keep);
+    len += sprintf(p1 + len, "%" PRId64 "%c:%" PRId64 "%c", v1, p->freqUnit, v2, p->keepUnit);
+  }
+
+  if (size > 2) {
+    len += sprintf(p1 + len, ",");
+    p = taosArrayGet(pRetension, 2);
+
+    v1 = getValOfDiffPrecision(p->freqUnit, p->freq);
+    v2 = getValOfDiffPrecision(p->keepUnit, p->keep);
+    len += sprintf(p1 + len, "%" PRId64 "%c:%" PRId64 "%c", v1, p->freqUnit, v2, p->keepUnit);
+  }
+
+  return p1;
+}
+
+
+static void setCreateDBResultIntoDataBlock(SSDataBlock* pBlock, char *dbFName, SDbCfgInfo* pCfg) {
+  blockDataEnsureCapacity(pBlock, 1);
+  pBlock->info.rows = 1;
+
+  SColumnInfoData* pCol1 = taosArrayGet(pBlock->pDataBlock, 0);
+  char             buf1[SHOW_CREATE_DB_RESULT_FIELD1_LEN] = {0};
+  STR_TO_VARSTR(buf1, dbFName);
+  colDataAppend(pCol1, 0, buf1, false);
+
+  SColumnInfoData* pCol2 = taosArrayGet(pBlock->pDataBlock, 1);
+  char             buf2[SHOW_CREATE_DB_RESULT_FIELD2_LEN] = {0};
+  int32_t          len = 0;
+  char *prec = NULL;
+  switch (pCfg->precision) {
+    case TSDB_TIME_PRECISION_MILLI:
+      prec = TSDB_TIME_PRECISION_MILLI_STR;
+      break;
+    case TSDB_TIME_PRECISION_MICRO:
+      prec = TSDB_TIME_PRECISION_MICRO_STR;
+      break;
+    case TSDB_TIME_PRECISION_NANO:
+      prec = TSDB_TIME_PRECISION_NANO_STR;
+      break;
+    default:
+      prec = "none";
+      break;
+  }
+
+  char *retentions = buildRetension(pCfg->pRetensions);
+  
+  len += sprintf(buf2 + VARSTR_HEADER_SIZE, "CREATE DATABASE `%s` BUFFER %d CACHELAST %d COMP %d DURATION %dm "
+                    "FSYNC %d MAXROWS %d MINROWS %d KEEP %dm,%dm,%dm PAGES %d PAGESIZE %d PRECISION '%s' REPLICA %d "
+                    "STRICT %d WAL %d VGROUPS %d SINGLE_STABLE %d",
+                    dbFName, pCfg->buffer, pCfg->cacheLastRow, pCfg->compression, pCfg->daysPerFile,
+                    pCfg->fsyncPeriod, pCfg->maxRows, pCfg->minRows, pCfg->daysToKeep0, pCfg->daysToKeep1, pCfg->daysToKeep2,
+                    pCfg->pages, pCfg->pageSize, prec, pCfg->replications, pCfg->strict, pCfg->walLevel, pCfg->numOfVgroups,
+                    1 == pCfg->numOfStables);
+
+  if (retentions) {
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE + len, " RETENTIONS %s", retentions);
+    taosMemoryFree(retentions);
+  }
+
+  (varDataLen(buf2)) = len;
+  
+  colDataAppend(pCol2, 0, buf2, false);
+}
+
+
+static int32_t execShowCreateDatabase(SShowCreateDatabaseStmt* pStmt, SRetrieveTableRsp** pRsp) {
+  SSDataBlock* pBlock = buildCreateDBResultDataBlock();
+  setCreateDBResultIntoDataBlock(pBlock, pStmt->dbName, pStmt->pCfg);
+
+  size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
+  *pRsp = taosMemoryCalloc(1, rspSize);
+  if (NULL == *pRsp) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+
+  (*pRsp)->useconds = 0;
+  (*pRsp)->completed = 1;
+  (*pRsp)->precision = 0;
+  (*pRsp)->compressed = 0;
+  (*pRsp)->compLen = 0;
+  (*pRsp)->numOfRows = htonl(1);
+  (*pRsp)->numOfCols = htonl(SHOW_CREATE_DB_RESULT_COLS);
+
+  int32_t len = 0;
+  blockCompressEncode(pBlock, (*pRsp)->data, &len, SHOW_CREATE_DB_RESULT_COLS, false);
+  ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
+
+  blockDataDestroy(pBlock);
+  return TSDB_CODE_SUCCESS;
+}
+
+static SSDataBlock* buildCreateTbResultDataBlock() {
+  SSDataBlock* pBlock = taosMemoryCalloc(1, sizeof(SSDataBlock));
+  pBlock->info.numOfCols = SHOW_CREATE_TB_RESULT_COLS;
+  pBlock->info.hasVarCol = true;
+
+  pBlock->pDataBlock = taosArrayInit(pBlock->info.numOfCols, sizeof(SColumnInfoData));
+
+  SColumnInfoData infoData = {0};
+  infoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  infoData.info.bytes = SHOW_CREATE_TB_RESULT_FIELD1_LEN;
+
+  taosArrayPush(pBlock->pDataBlock, &infoData);
+
+  infoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  infoData.info.bytes = SHOW_CREATE_TB_RESULT_FIELD2_LEN;
+  taosArrayPush(pBlock->pDataBlock, &infoData);
+
+  return pBlock;
+}
+
+void appendColumnFields(char* buf, int32_t* len, STableCfg* pCfg) {
+  for (int32_t i = 0; i < pCfg->numOfColumns; ++i) {
+    SSchema* pSchema = pCfg->pSchemas + i;
+    char type[32];
+    sprintf(type, "%s", tDataTypes[pSchema->type].name);
+    if (TSDB_DATA_TYPE_VARCHAR == pSchema->type) {
+      sprintf(type + strlen(type), "(%d)", (int32_t)(pSchema->bytes - VARSTR_HEADER_SIZE));
+    } else if (TSDB_DATA_TYPE_NCHAR == pSchema->type) {
+      sprintf(type + strlen(type), "(%d)", (int32_t)((pSchema->bytes - VARSTR_HEADER_SIZE)/TSDB_NCHAR_SIZE));    
+    }
+    
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s`%s` %s", ((i > 0) ? ", " : ""), pSchema->name, type);
+  }
+}
+
+void appendTagFields(char* buf, int32_t* len, STableCfg* pCfg) {
+  for (int32_t i = 0; i < pCfg->numOfTags; ++i) {
+    SSchema* pSchema = pCfg->pSchemas + pCfg->numOfColumns + i;
+    char type[32];
+    sprintf(type, "%s", tDataTypes[pSchema->type].name);
+    if (TSDB_DATA_TYPE_VARCHAR == pSchema->type) {
+      sprintf(type + strlen(type), "(%d)", (int32_t)(pSchema->bytes - VARSTR_HEADER_SIZE));
+    } else if (TSDB_DATA_TYPE_NCHAR == pSchema->type) {
+      sprintf(type + strlen(type), "(%d)", (int32_t)((pSchema->bytes - VARSTR_HEADER_SIZE)/TSDB_NCHAR_SIZE));    
+    }
+
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s`%s` %s", ((i > 0) ? ", " : ""), pSchema->name, type);
+  }
+}
+
+
+void appendTagNameFields(char* buf, int32_t* len, STableCfg* pCfg) {
+  for (int32_t i = 0; i < pCfg->numOfTags; ++i) {
+    SSchema* pSchema = pCfg->pSchemas + pCfg->numOfColumns + i;
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s`%s`", ((i > 0) ? ", " : ""), pSchema->name);
+  }
+}
+
+
+int32_t appendTagValues(char* buf, int32_t* len, STableCfg* pCfg) {
+  SArray *pTagVals = NULL;
+  STag *pTag = (STag*)pCfg->pTags;
+  
+  if (pCfg->pTags && pTag->flags & TD_TAG_JSON) {
+    char *pJson = parseTagDatatoJson(pTag);
+    if (pJson) {
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s", pJson);
+      taosMemoryFree(pJson);
+    }
+
+    return TSDB_CODE_SUCCESS;
+  }
+  
+  int32_t code = tTagToValArray((const STag *)pCfg->pTags, &pTagVals);
+  if (code) {
+    return code;
+  }
+
+  int16_t valueNum = taosArrayGetSize(pTagVals);
+  int32_t num = 0;
+  int32_t j = 0;
+  for (int32_t i = 0; i < pCfg->numOfTags; ++i) {
+    SSchema* pSchema = pCfg->pSchemas + pCfg->numOfColumns + i;
+    if (i > 0) {
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, ", ");
+    }
+    
+    if (j >= valueNum) {
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "NULL");
+      continue;
+    }
+    
+    STagVal *pTagVal = (STagVal *)taosArrayGet(pTagVals, j);
+    if (pSchema->colId > pTagVal->cid) {
+      qError("tag value and column mismatch, schemaId:%d, valId:%d", pSchema->colId, pTagVal->cid);
+      taosArrayDestroy(pTagVals);
+      return TSDB_CODE_APP_ERROR;
+    } else if (pSchema->colId == pTagVal->cid) {
+      char     type = pTagVal->type;
+      int32_t  tlen = 0;
+
+      if (IS_VAR_DATA_TYPE(type)) {
+        dataConverToStr(buf + VARSTR_HEADER_SIZE + *len, type, pTagVal->pData, pTagVal->nData, &tlen);
+      } else {
+        dataConverToStr(buf + VARSTR_HEADER_SIZE + *len, type, &pTagVal->i64, tDataTypes[type].bytes, &tlen);
+      }
+      *len += tlen;
+      j++;
+    } else {
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "NULL");
+    }
+    
+
+    /*
+    if (type == TSDB_DATA_TYPE_BINARY) {
+      if (pTagVal->nData > 0) {
+        if (num) {
+          *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, ", ");
+        }
+        
+        memcpy(buf + VARSTR_HEADER_SIZE + *len, pTagVal->pData, pTagVal->nData);
+        *len += pTagVal->nData;
+      }
+    } else if (type == TSDB_DATA_TYPE_NCHAR) {
+      if (pTagVal->nData > 0) {
+        if (num) {
+          *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, ", ");
+        }
+        int32_t tlen = taosUcs4ToMbs((TdUcs4 *)pTagVal->pData, pTagVal->nData, buf + VARSTR_HEADER_SIZE + *len);
+      }
+    } else if (type == TSDB_DATA_TYPE_DOUBLE) {
+      double val = *(double *)(&pTagVal->i64);
+      int    len = 0;
+      term = indexTermCreate(suid, ADD_VALUE, type, key, nKey, (const char *)&val, len);
+    } else if (type == TSDB_DATA_TYPE_BOOL) {
+      int val = *(int *)(&pTagVal->i64);
+      int len = 0;
+      term = indexTermCreate(suid, ADD_VALUE, TSDB_DATA_TYPE_INT, key, nKey, (const char *)&val, len);
+    }
+    */
+  }
+
+  taosArrayDestroy(pTagVals);
+
+  return TSDB_CODE_SUCCESS;  
+}
+
+void appendTableOptions(char* buf, int32_t* len, STableCfg* pCfg) {
+  if (pCfg->commentLen > 0) {
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, " COMMENT '%s'", pCfg->pComment);
+  } else if (0 == pCfg->commentLen) {
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, " COMMENT ''");
+  }
+
+  if (pCfg->watermark1 > 0) {
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, " WATERMARK %" PRId64 "a", pCfg->watermark1);
+    if (pCfg->watermark2 > 0) {
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, ", %" PRId64 "a", pCfg->watermark2);
+    }
+  }
+
+  if (pCfg->delay1 > 0) {
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, " MAX_DELAY %" PRId64 "a", pCfg->delay1);
+    if (pCfg->delay2 > 0) {
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, ", %" PRId64 "a", pCfg->delay2);
+    }
+  }
+
+  int32_t funcNum = taosArrayGetSize(pCfg->pFuncs);
+  if (funcNum > 0) {
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, " ROLLUP(");
+    for (int32_t i = 0; i < funcNum; ++i) {
+      char* pFunc = taosArrayGet(pCfg->pFuncs, i);
+      *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, "%s%s", ((i > 0) ? ", " : ""), pFunc);      
+    }
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, ")");
+  }
+
+  if (pCfg->ttl > 0) {
+    *len += sprintf(buf + VARSTR_HEADER_SIZE + *len, " TTL %d", pCfg->ttl);
+  }
+}
+
+static int32_t setCreateTBResultIntoDataBlock(SSDataBlock* pBlock, char *tbName, STableCfg* pCfg) {
+  int32_t code = 0;
+  blockDataEnsureCapacity(pBlock, 1);
+  pBlock->info.rows = 1;
+
+  SColumnInfoData* pCol1 = taosArrayGet(pBlock->pDataBlock, 0);
+  char             buf1[SHOW_CREATE_TB_RESULT_FIELD1_LEN] = {0};
+  STR_TO_VARSTR(buf1, tbName);
+  colDataAppend(pCol1, 0, buf1, false);
+
+  SColumnInfoData* pCol2 = taosArrayGet(pBlock->pDataBlock, 1);
+  char             buf2[SHOW_CREATE_TB_RESULT_FIELD2_LEN] = {0};
+  int32_t          len = 0;
+
+  if (TSDB_SUPER_TABLE == pCfg->tableType) {
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE, "CREATE STABLE `%s` (", tbName);
+    appendColumnFields(buf2, &len, pCfg);
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE + len, ") TAGS (");
+    appendTagFields(buf2, &len, pCfg);    
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE + len, ")");
+    appendTableOptions(buf2, &len, pCfg);
+  } else if (TSDB_CHILD_TABLE == pCfg->tableType) {
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE, "CREATE TABLE `%s` USING `%s` (", tbName, pCfg->stbName);
+    appendTagNameFields(buf2, &len, pCfg);
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE + len, ") TAGS (");
+    code = appendTagValues(buf2, &len, pCfg);
+    if (code) {
+      return code;
+    }
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE + len, ")");
+    appendTableOptions(buf2, &len, pCfg);
+  } else {
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE, "CREATE TABLE `%s` (", tbName);
+    appendColumnFields(buf2, &len, pCfg);
+    len += sprintf(buf2 + VARSTR_HEADER_SIZE + len, ")");
+  }
+
+  varDataLen(buf2) = len;
+  
+  colDataAppend(pCol2, 0, buf2, false);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
+static int32_t execShowCreateTable(SShowCreateTableStmt* pStmt, SRetrieveTableRsp** pRsp) {
+  SSDataBlock* pBlock = buildCreateTbResultDataBlock();
+  int32_t code = setCreateTBResultIntoDataBlock(pBlock, pStmt->tableName, pStmt->pCfg);
+  if (code) {
+    return code;
+  }
+
+  size_t rspSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
+  *pRsp = taosMemoryCalloc(1, rspSize);
+  if (NULL == *pRsp) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+
+  (*pRsp)->useconds = 0;
+  (*pRsp)->completed = 1;
+  (*pRsp)->precision = 0;
+  (*pRsp)->compressed = 0;
+  (*pRsp)->compLen = 0;
+  (*pRsp)->numOfRows = htonl(1);
+  (*pRsp)->numOfCols = htonl(SHOW_CREATE_TB_RESULT_COLS);
+
+  int32_t len = 0;
+  blockCompressEncode(pBlock, (*pRsp)->data, &len, SHOW_CREATE_TB_RESULT_COLS, false);
+  ASSERT(len == rspSize - sizeof(SRetrieveTableRsp));
+
+  blockDataDestroy(pBlock);
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t execShowCreateSTable(SShowCreateTableStmt* pStmt, SRetrieveTableRsp** pRsp) {
+  STableCfg* pCfg = (STableCfg*)pStmt->pCfg;
+  if (TSDB_SUPER_TABLE != pCfg->tableType) {
+    terrno = TSDB_CODE_TSC_NOT_STABLE_ERROR;
+    return terrno;
+  }
+  
+  return execShowCreateTable(pStmt, pRsp);
+}

 static int32_t execAlterLocal(SAlterLocalStmt* pStmt) { return TSDB_CODE_FAILED; }

+static int32_t execShowLocalVariables() { return TSDB_CODE_FAILED; }
+
 int32_t qExecCommand(SNode* pStmt, SRetrieveTableRsp** pRsp) {
  switch (nodeType(pStmt)) {
    case QUERY_NODE_DESCRIBE_STMT:
@ -138,13 +560,15 @@ int32_t qExecCommand(SNode* pStmt, SRetrieveTableRsp** pRsp) {
    case QUERY_NODE_RESET_QUERY_CACHE_STMT:
      return execResetQueryCache();
    case QUERY_NODE_SHOW_CREATE_DATABASE_STMT:
-      return execShowCreateDatabase((SShowCreateDatabaseStmt*)pStmt);
+      return execShowCreateDatabase((SShowCreateDatabaseStmt*)pStmt, pRsp);
    case QUERY_NODE_SHOW_CREATE_TABLE_STMT:
-      return execShowCreateTable((SShowCreateTableStmt*)pStmt);
+      return execShowCreateTable((SShowCreateTableStmt*)pStmt, pRsp);
    case QUERY_NODE_SHOW_CREATE_STABLE_STMT:
-      return execShowCreateSTable((SShowCreateTableStmt*)pStmt);
+      return execShowCreateSTable((SShowCreateTableStmt*)pStmt, pRsp);
    case QUERY_NODE_ALTER_LOCAL_STMT:
      return execAlterLocal((SAlterLocalStmt*)pStmt);
+    case QUERY_NODE_SHOW_LOCAL_VARIABLES_STMT:
+      return execShowLocalVariables();
    default:
      break;
  }
--- a/Show More
+++ b/Show More