diff --git a/CMakeLists.txt b/CMakeLists.txt
index e1fbd54be3..0436f5b259 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ project(
 )
 
 if (NOT DEFINED TD_SOURCE_DIR)
-  set( TD_SOURCE_DIR ${CMAKE_SOURCE_DIR} )
+  set( TD_SOURCE_DIR ${PROJECT_SOURCE_DIR} )
 endif()
 
 set(TD_SUPPORT_DIR "${TD_SOURCE_DIR}/cmake")
diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
index 19923a5ad6..1ddc765c5c 100644
--- a/contrib/CMakeLists.txt
+++ b/contrib/CMakeLists.txt
@@ -14,24 +14,9 @@ if(${BUILD_PTHREAD})
     cat("${TD_SUPPORT_DIR}/pthread_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
 endif()
 
-# iconv
-if(${BUILD_WITH_ICONV})
-    cat("${TD_SUPPORT_DIR}/iconv_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
-endif()
-
-# msvc regex
-if(${BUILD_MSVCREGEX})
-    cat("${TD_SUPPORT_DIR}/msvcregex_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
-endif()
-
-# wcwidth
-if(${BUILD_WCWIDTH})
-    cat("${TD_SUPPORT_DIR}/wcwidth_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
-endif()
-
-# wingetopt
-if(${BUILD_WINGETOPT})
-    cat("${TD_SUPPORT_DIR}/wingetopt_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
+# gnu regex
+if(${BUILD_GNUREGEX})
+    cat("${TD_SUPPORT_DIR}/gnuregex_CMakeLists.txt.in" ${CONTRIB_TMP_FILE})
 endif()
 
 # googletest
@@ -114,27 +99,8 @@ if(${BUILD_TEST})
     target_include_directories(
         gtest
         PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/cpp-stub/src>
+        PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/cpp-stub/src_linux>
     )
-    if(${TD_WINDOWS})
-        target_include_directories(
-            gtest
-            PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/cpp-stub/src_win>
-        )
-    endif(${TD_WINDOWS})
-    if(${TD_LINUX})
-        target_include_directories(
-            gtest
-            PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/cpp-stub/src_linux>
-        )
-    endif(${TD_LINUX})
-    if(${TD_DARWIN})
-        target_include_directories(
-            gtest
-            PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/cpp-stub/src_darwin>
-        )
-    endif(${TD_DARWIN})
-    
-    
 endif(${BUILD_TEST})
 
 # cJson
@@ -216,53 +182,6 @@ if(${BUILD_WITH_NURAFT})
     add_subdirectory(nuraft)
 endif(${BUILD_WITH_NURAFT})
 
-# pthread
-if(${BUILD_PTHREAD})
-    set(CMAKE_BUILD_TYPE release)
-    add_definitions(-DPTW32_STATIC_LIB) 
-    add_subdirectory(pthread)
-    set_target_properties(libpthreadVC3 PROPERTIES OUTPUT_NAME pthread)
-    add_library(pthread STATIC IMPORTED GLOBAL)
-    SET_PROPERTY(TARGET pthread PROPERTY IMPORTED_LOCATION ${LIBRARY_OUTPUT_PATH}/pthread.lib)
-endif()
-
-# iconv
-if(${BUILD_WITH_ICONV})
-    add_subdirectory(iconv)
-endif(${BUILD_WITH_ICONV})
-
-# wingetopt
-if(${BUILD_WINGETOPT})
-    add_subdirectory(wingetopt)
-endif(${BUILD_WINGETOPT})
-
-# msvcregex
-if(${BUILD_MSVCREGEX})
-    add_library(msvcregex STATIC "")
-    target_sources(msvcregex
-        PRIVATE "msvcregex/regex.c"
-    )
-    target_include_directories(msvcregex
-        PRIVATE "msvcregex"
-    )
-    target_link_libraries(msvcregex 
-        INTERFACE Shell32
-    )
-    SET_TARGET_PROPERTIES(msvcregex PROPERTIES OUTPUT_NAME msvcregex)
-endif(${BUILD_MSVCREGEX})
-
-# msvcregex
-if(${BUILD_WCWIDTH})
-    add_library(wcwidth STATIC "")
-    target_sources(wcwidth
-        PRIVATE "wcwidth/wcwidth.c"
-    )
-    target_include_directories(wcwidth
-        PRIVATE "wcwidth"
-    )
-    SET_TARGET_PROPERTIES(wcwidth PROPERTIES OUTPUT_NAME wcwidth)
-endif(${BUILD_WCWIDTH})
-
 # CRAFT
 if(${BUILD_WITH_CRAFT})
     add_library(craft STATIC IMPORTED GLOBAL)
@@ -319,12 +238,8 @@ if(${BUILD_WITH_SQLITE})
     target_link_libraries(sqlite 
         INTERFACE m 
         INTERFACE pthread 
+        INTERFACE dl
     )
-    if(NOT TD_WINDOWS)
-        target_link_libraries(sqlite 
-            INTERFACE dl
-        )
-    endif(NOT TD_WINDOWS)
 endif(${BUILD_WITH_SQLITE})
 
 # pthread
diff --git a/contrib/test/craft/CMakeLists.txt b/contrib/test/craft/CMakeLists.txt
index ec8b44b673..e0f6ae64bd 100644
--- a/contrib/test/craft/CMakeLists.txt
+++ b/contrib/test/craft/CMakeLists.txt
@@ -1,9 +1,2 @@
 add_executable(simulate_vnode "simulate_vnode.c")
-target_link_libraries(simulate_vnode PUBLIC craft lz4 uv_a)
-if(${BUILD_WINGETOPT})
-    target_link_libraries(simulate_vnode PUBLIC wingetopt)
-    target_include_directories(
-        simulate_vnode
-        PUBLIC "${TD_SOURCE_DIR}/contrib/wingetopt/src"
-    )
-endif()
\ No newline at end of file
+target_link_libraries(simulate_vnode PUBLIC craft lz4 uv_a)
\ No newline at end of file
diff --git a/contrib/test/tdev/src/main.c b/contrib/test/tdev/src/main.c
index e40040ce97..5e1de83e88 100644
--- a/contrib/test/tdev/src/main.c
+++ b/contrib/test/tdev/src/main.c
@@ -6,39 +6,43 @@
 #define POINTER_SHIFT(ptr, s) ((void *)(((char *)ptr) + (s)))
 #define POINTER_DISTANCE(pa, pb) ((char *)(pb) - (char *)(pa))
 
-static inline void tPutA(void **buf, uint64_t val) {
-  memcpy(buf, &val, sizeof(val));
-  *buf = POINTER_SHIFT(buf, sizeof(val));
-}
+#define tPutA(buf, val)              \
+  ({                                 \
+    memcpy(buf, &val, sizeof(val));  \
+    POINTER_SHIFT(buf, sizeof(val)); \
+  })
 
-static inline void tPutB(void **buf, uint64_t val) {
-  ((uint8_t *)buf)[7] = ((val) >> 56) & 0xff;
-  ((uint8_t *)buf)[6] = ((val) >> 48) & 0xff;
-  ((uint8_t *)buf)[5] = ((val) >> 40) & 0xff;
-  ((uint8_t *)buf)[4] = ((val) >> 32) & 0xff;
-  ((uint8_t *)buf)[3] = ((val) >> 24) & 0xff;
-  ((uint8_t *)buf)[2] = ((val) >> 16) & 0xff;
-  ((uint8_t *)buf)[1] = ((val) >> 8) & 0xff;
-  ((uint8_t *)buf)[0] = (val)&0xff;
-  *buf = POINTER_SHIFT(buf, sizeof(val));
-}
+#define tPutB(buf, val)                         \
+  ({                                            \
+    ((uint8_t *)buf)[7] = ((val) >> 56) & 0xff; \
+    ((uint8_t *)buf)[6] = ((val) >> 48) & 0xff; \
+    ((uint8_t *)buf)[5] = ((val) >> 40) & 0xff; \
+    ((uint8_t *)buf)[4] = ((val) >> 32) & 0xff; \
+    ((uint8_t *)buf)[3] = ((val) >> 24) & 0xff; \
+    ((uint8_t *)buf)[2] = ((val) >> 16) & 0xff; \
+    ((uint8_t *)buf)[1] = ((val) >> 8) & 0xff;  \
+    ((uint8_t *)buf)[0] = (val)&0xff;           \
+    POINTER_SHIFT(buf, sizeof(val));            \
+  })
 
-static inline void tPutC(void **buf, uint64_t val) {
-  if (buf) {
-    ((uint64_t *)buf)[0] = (val);
-    POINTER_SHIFT(buf, sizeof(val));
-  }
-  *buf = NULL;
-}
+#define tPutC(buf, val)                \
+  ({                                   \
+    if (buf) {                         \
+      ((uint64_t *)buf)[0] = (val);    \
+      POINTER_SHIFT(buf, sizeof(val)); \
+    }                                  \
+    NULL;                                 \
+  })
 
-static inline void tPutD(void **buf, uint64_t val) {
-  uint64_t tmp = val;
-  for (size_t i = 0; i < sizeof(val); i++) {
-    ((uint8_t *)buf)[i] = tmp & 0xff;
-    tmp >>= 8;
-  }
-  *buf = POINTER_SHIFT(buf, sizeof(val));
-}
+#define tPutD(buf, val)                        \
+  ({                                           \
+    uint64_t tmp = val;                        \
+    for (size_t i = 0; i < sizeof(val); i++) { \
+      ((uint8_t *)buf)[i] = tmp & 0xff;        \
+      tmp >>= 8;                               \
+    }                                          \
+    POINTER_SHIFT(buf, sizeof(val));           \
+  })
 
 static inline void tPutE(void **buf, uint64_t val) {
   if (buf) {
@@ -57,7 +61,7 @@ static void func(T t) {
   switch (t) {
     case A:
       for (size_t i = 0; i < 10 * 1024l * 1024l * 1024l; i++) {
-        tPutA(pBuf, val);
+        pBuf = tPutA(pBuf, val);
         if (POINTER_DISTANCE(buf, pBuf) == 1024) {
           pBuf = buf;
         }
@@ -65,7 +69,7 @@ static void func(T t) {
       break;
     case B:
       for (size_t i = 0; i < 10 * 1024l * 1024l * 1024l; i++) {
-        tPutB(pBuf, val);
+        pBuf = tPutB(pBuf, val);
         if (POINTER_DISTANCE(buf, pBuf) == 1024) {
           pBuf = buf;
         }
@@ -73,7 +77,7 @@ static void func(T t) {
       break;
     case C:
       for (size_t i = 0; i < 10 * 1024l * 1024l * 1024l; i++) {
-        tPutC(pBuf, val);
+        pBuf = tPutC(pBuf, val);
         if (POINTER_DISTANCE(buf, pBuf) == 1024) {
           pBuf = buf;
         }
@@ -81,7 +85,7 @@ static void func(T t) {
       break;
     case D:
       for (size_t i = 0; i < 10 * 1024l * 1024l * 1024l; i++) {
-        tPutD(pBuf, val);
+        pBuf = tPutD(pBuf, val);
         if (POINTER_DISTANCE(buf, pBuf) == 1024) {
           pBuf = buf;
         }
diff --git a/example/src/tmq.c b/example/src/tmq.c
index b2cbf856c0..56f210081b 100644
--- a/example/src/tmq.c
+++ b/example/src/tmq.c
@@ -60,7 +60,6 @@ int32_t init_env() {
   pRes =
       taos_query(pConn, "create stable if not exists st1 (ts timestamp, c1 int, c2 float, c3 binary(10)) tags(t1 int)");
   if (taos_errno(pRes) != 0) {
-    assert(0);
     printf("failed to create super table st1, reason:%s\n", taos_errstr(pRes));
     return -1;
   }
@@ -104,8 +103,8 @@ int32_t create_topic() {
   }
   taos_free_result(pRes);
 
-  /*pRes = taos_query(pConn, "create topic topic_ctb_column as abc1");*/
-  pRes = taos_query(pConn, "create topic topic_ctb_column as select ts, c1, c2, c3 from ct1");
+  pRes = taos_query(pConn, "create topic topic_ctb_column as abc1");
+  /*pRes = taos_query(pConn, "create topic topic_ctb_column as select ts, c1, c2, c3 from ct1");*/
   if (taos_errno(pRes) != 0) {
     printf("failed to create topic topic_ctb_column, reason:%s\n", taos_errstr(pRes));
     return -1;
@@ -163,9 +162,10 @@ tmq_t* build_consumer() {
   tmq_conf_set(conf, "group.id", "tg2");
   tmq_conf_set(conf, "td.connect.user", "root");
   tmq_conf_set(conf, "td.connect.pass", "taosdata");
-  tmq_conf_set(conf, "td.connect.db", "abc1");
+  /*tmq_conf_set(conf, "td.connect.db", "abc1");*/
   tmq_conf_set_offset_commit_cb(conf, tmq_commit_cb_print);
   tmq_t* tmq = tmq_consumer_new(conf, NULL, 0);
+  assert(tmq);
   return tmq;
 }
 
diff --git a/examples/c/CMakeLists.txt b/examples/c/CMakeLists.txt
index e94de3cbca..17a9257c49 100644
--- a/examples/c/CMakeLists.txt
+++ b/examples/c/CMakeLists.txt
@@ -1,7 +1,7 @@
 PROJECT(TDengine)
 
 IF (TD_LINUX)
-  INCLUDE_DIRECTORIES(. ${TD_COMMUNITY_DIR}/src/inc ${TD_COMMUNITY_DIR}/src/client/inc  ${TD_COMMUNITY_DIR}/inc)
+  INCLUDE_DIRECTORIES(. ${TD_SOURCE_DIR}/src/inc ${TD_SOURCE_DIR}/src/client/inc  ${TD_SOURCE_DIR}/inc)
   AUX_SOURCE_DIRECTORY(. SRC)
   ADD_EXECUTABLE(demo apitest.c)
   TARGET_LINK_LIBRARIES(demo taos_static trpc tutil pthread )
@@ -13,7 +13,7 @@ IF (TD_LINUX)
   TARGET_LINK_LIBRARIES(epoll taos_static trpc tutil pthread lua)
 ENDIF ()
 IF (TD_DARWIN)
-  INCLUDE_DIRECTORIES(. ${TD_COMMUNITY_DIR}/src/inc ${TD_COMMUNITY_DIR}/src/client/inc  ${TD_COMMUNITY_DIR}/inc)
+  INCLUDE_DIRECTORIES(. ${TD_SOURCE_DIR}/src/inc ${TD_SOURCE_DIR}/src/client/inc  ${TD_SOURCE_DIR}/inc)
   AUX_SOURCE_DIRECTORY(. SRC)
   ADD_EXECUTABLE(demo demo.c)
   TARGET_LINK_LIBRARIES(demo taos_static trpc tutil pthread lua)
diff --git a/include/common/tdatablock.h b/include/common/tdatablock.h
index a354605a21..71e2e4fba3 100644
--- a/include/common/tdatablock.h
+++ b/include/common/tdatablock.h
@@ -238,10 +238,16 @@ static FORCE_INLINE int32_t blockCompressColData(SColumnInfoData* pColRes, int32
 
 static FORCE_INLINE void blockCompressEncode(const SSDataBlock* pBlock, char* data, int32_t* dataLen, int32_t numOfCols,
                                              int8_t needCompress) {
-  int32_t* colSizes = (int32_t*)data;
+  int32_t* actualLen = (int32_t*) data;
+  data += sizeof(int32_t);
 
+  uint64_t* groupId = (uint64_t*) data;
+  data += sizeof(uint64_t);
+
+  int32_t* colSizes = (int32_t*)data;
   data += numOfCols * sizeof(int32_t);
-  *dataLen = (numOfCols * sizeof(int32_t));
+
+  *dataLen = (numOfCols * sizeof(int32_t) + sizeof(uint64_t) + sizeof(int32_t));
 
   int32_t numOfRows = pBlock->info.rows;
   for (int32_t col = 0; col < numOfCols; ++col) {
@@ -273,6 +279,9 @@ static FORCE_INLINE void blockCompressEncode(const SSDataBlock* pBlock, char* da
 
     colSizes[col] = htonl(colSizes[col]);
   }
+
+  *actualLen = *dataLen;
+  *groupId = pBlock->info.groupId;
 }
 
 #ifdef __cplusplus
diff --git a/include/common/tglobal.h b/include/common/tglobal.h
index 72f67665ba..fc3d575317 100644
--- a/include/common/tglobal.h
+++ b/include/common/tglobal.h
@@ -123,9 +123,9 @@ extern SDiskCfg tsDiskCfg[];
 
 #define NEEDTO_COMPRESSS_MSG(size) (tsCompressMsgSize != -1 && (size) > tsCompressMsgSize)
 
-int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDir, const char *envFile,
-                      const char *apolloUrl, SArray *pArgs, bool tsc);
-int32_t taosInitCfg(const char *cfgDir, const char *envFile, const char *apolloUrl, SArray *pArgs, bool tsc);
+int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDir, const char **envCmd, const char *envFile,
+                      char *apolloUrl, SArray *pArgs, bool tsc);
+int32_t taosInitCfg(const char *cfgDir, const char **envCmd, const char *envFile, char *apolloUrl, SArray *pArgs, bool tsc);
 void    taosCleanupCfg();
 void    taosCfgDynamicOptions(const char *option, const char *value);
 void    taosAddDataDir(int32_t index, char *v1, int32_t level, int32_t primary);
diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 21bd84076f..a36319c9fd 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -227,8 +227,16 @@ typedef struct {
 } SSubmitBlkIter;
 
 typedef struct {
-  int32_t     totalLen;
-  int32_t     len;
+  int32_t totalLen;
+  int32_t len;
+  // head of SSubmitBlk
+  // int64_t uid;        // table unique id
+  // int64_t suid;       // stable id
+  // int32_t sversion;   // data schema version
+  // int32_t dataLen;    // data part length, not including the SSubmitBlk head
+  // int32_t schemaLen;  // schema length, if length is 0, no schema exists
+  // int16_t numOfRows;  // total number of rows in current submit block
+  // head of SSubmitBlk
   const void* pMsg;
 } SSubmitMsgIter;
 
@@ -237,6 +245,15 @@ int32_t tGetSubmitMsgNext(SSubmitMsgIter* pIter, SSubmitBlk** pPBlock);
 int32_t tInitSubmitBlkIter(SSubmitBlk* pBlock, SSubmitBlkIter* pIter);
 STSRow* tGetSubmitBlkNext(SSubmitBlkIter* pIter);
 
+// TODO: KEEP one suite of iterator API finally.
+// 1) use tInitSubmitMsgIterEx firstly as not decrease the merge conflicts
+// 2) replace tInitSubmitMsgIterEx with tInitSubmitMsgIter later
+// 3) finally, rename tInitSubmitMsgIterEx to tInitSubmitMsgIter
+// int32_t tInitSubmitMsgIterEx(const SSubmitReq* pMsg, SSubmitMsgIter* pIter);
+// int32_t tGetSubmitMsgNextEx(SSubmitMsgIter* pIter, SSubmitBlk** pPBlock);
+// int32_t tInitSubmitBlkIterEx(SSubmitMsgIter* pMsgIter, SSubmitBlk* pBlock, SSubmitBlkIter* pIter);
+// STSRow* tGetSubmitBlkNextEx(SSubmitBlkIter* pIter);
+
 typedef struct {
   int32_t index;  // index of failed block in submit blocks
   int32_t vnode;  // vnode index of failed block
@@ -1494,8 +1511,8 @@ typedef struct {
   int32_t    delay;
   int32_t    qmsg1Len;
   int32_t    qmsg2Len;
-  char*      qmsg1;  // not null: pAst1:qmsg1:SRetention1 => trigger aggr task1
-  char*      qmsg2;  // not null: pAst2:qmsg2:SRetention2 => trigger aggr task2
+  char*      qmsg1;  // pAst1:qmsg1:SRetention1 => trigger aggr task1
+  char*      qmsg2;  // pAst2:qmsg2:SRetention2 => trigger aggr task2
 } SRSmaParam;
 
 typedef struct SVCreateTbReq {
@@ -2049,80 +2066,6 @@ static FORCE_INLINE void* tDecodeSMqSetCVgReq(void* buf, SMqSetCVgReq* pReq) {
   return buf;
 }
 
-typedef struct {
-  int64_t leftForVer;
-  int32_t vgId;
-  int32_t epoch;
-  int64_t consumerId;
-  char    topicName[TSDB_TOPIC_FNAME_LEN];
-} SMqCancelConnReq;
-
-static FORCE_INLINE int32_t tEncodeSMqCancelConnReq(void** buf, const SMqCancelConnReq* pReq) {
-  int32_t tlen = 0;
-  tlen += taosEncodeFixedI64(buf, pReq->leftForVer);
-  tlen += taosEncodeFixedI32(buf, pReq->vgId);
-  tlen += taosEncodeFixedI32(buf, pReq->epoch);
-  tlen += taosEncodeFixedI64(buf, pReq->consumerId);
-  tlen += taosEncodeString(buf, pReq->topicName);
-  return tlen;
-}
-
-static FORCE_INLINE void* tDecodeSMqCancelConnReq(void* buf, SMqCancelConnReq* pReq) {
-  buf = taosDecodeFixedI64(buf, &pReq->leftForVer);
-  buf = taosDecodeFixedI32(buf, &pReq->vgId);
-  buf = taosDecodeFixedI32(buf, &pReq->epoch);
-  buf = taosDecodeFixedI64(buf, &pReq->consumerId);
-  buf = taosDecodeStringTo(buf, pReq->topicName);
-  return buf;
-}
-
-typedef struct {
-  int8_t reserved;
-} SMqCancelConnRsp;
-
-typedef struct {
-  int64_t leftForVer;
-  int32_t vgId;
-  int64_t oldConsumerId;
-  int64_t newConsumerId;
-  char*   topic;
-} SMqMVRebReq;
-
-static FORCE_INLINE int32_t tEncodeSMqMVRebReq(void** buf, const SMqMVRebReq* pReq) {
-  int32_t tlen = 0;
-  tlen += taosEncodeFixedI64(buf, pReq->leftForVer);
-  tlen += taosEncodeFixedI32(buf, pReq->vgId);
-  tlen += taosEncodeFixedI64(buf, pReq->oldConsumerId);
-  tlen += taosEncodeFixedI64(buf, pReq->newConsumerId);
-  tlen += taosEncodeString(buf, pReq->topic);
-  return tlen;
-}
-
-static FORCE_INLINE void* tDecodeSMqMVRebReq(void* buf, SMqMVRebReq* pReq) {
-  buf = taosDecodeFixedI64(buf, &pReq->leftForVer);
-  buf = taosDecodeFixedI32(buf, &pReq->vgId);
-  buf = taosDecodeFixedI64(buf, &pReq->oldConsumerId);
-  buf = taosDecodeFixedI64(buf, &pReq->newConsumerId);
-  buf = taosDecodeString(buf, &pReq->topic);
-  return buf;
-}
-
-typedef struct {
-  SMsgHead header;
-  int32_t  vgId;
-  int64_t  consumerId;
-  char     topicName[TSDB_TOPIC_FNAME_LEN];
-  char     cgroup[TSDB_CGROUP_LEN];
-} SMqSetCVgRsp;
-
-typedef struct {
-  SMsgHead header;
-  int32_t  vgId;
-  int64_t  consumerId;
-  char     topicName[TSDB_TOPIC_FNAME_LEN];
-  char     cgroup[TSDB_CGROUP_LEN];
-} SMqMVRebRsp;
-
 typedef struct {
   int32_t vgId;
   int64_t offset;
@@ -2149,6 +2092,24 @@ typedef struct {
   SSchema* pSchema;
 } SSchemaWrapper;
 
+static FORCE_INLINE SSchemaWrapper* tCloneSSchemaWrapper(const SSchemaWrapper* pSchemaWrapper) {
+  SSchemaWrapper* pSW = (SSchemaWrapper*)taosMemoryMalloc(sizeof(SSchemaWrapper));
+  if (pSW == NULL) return pSW;
+  pSW->nCols = pSchemaWrapper->nCols;
+  pSW->pSchema = (SSchema*)taosMemoryCalloc(pSW->nCols, sizeof(SSchema));
+  if (pSW->pSchema == NULL) {
+    taosMemoryFree(pSW);
+    return NULL;
+  }
+  memcpy(pSW->pSchema, pSchemaWrapper->pSchema, pSW->nCols * sizeof(SSchema));
+  return pSW;
+}
+
+static FORCE_INLINE void tDeleteSSchemaWrapper(SSchemaWrapper* pSchemaWrapper) {
+  taosMemoryFree(pSchemaWrapper->pSchema);
+  taosMemoryFree(pSchemaWrapper);
+}
+
 static FORCE_INLINE int32_t taosEncodeSSchema(void** buf, const SSchema* pSchema) {
   int32_t tlen = 0;
   tlen += taosEncodeFixedI8(buf, pSchema->type);
@@ -2159,13 +2120,13 @@ static FORCE_INLINE int32_t taosEncodeSSchema(void** buf, const SSchema* pSchema
   return tlen;
 }
 
-static FORCE_INLINE void* taosDecodeSSchema(void* buf, SSchema* pSchema) {
+static FORCE_INLINE void* taosDecodeSSchema(const void* buf, SSchema* pSchema) {
   buf = taosDecodeFixedI8(buf, &pSchema->type);
   buf = taosDecodeFixedI8(buf, &pSchema->flags);
   buf = taosDecodeFixedI32(buf, &pSchema->bytes);
   buf = taosDecodeFixedI16(buf, &pSchema->colId);
   buf = taosDecodeStringTo(buf, pSchema->name);
-  return buf;
+  return (void*)buf;
 }
 
 static FORCE_INLINE int32_t tEncodeSSchema(SCoder* pEncoder, const SSchema* pSchema) {
@@ -2195,7 +2156,7 @@ static FORCE_INLINE int32_t taosEncodeSSchemaWrapper(void** buf, const SSchemaWr
   return tlen;
 }
 
-static FORCE_INLINE void* taosDecodeSSchemaWrapper(void* buf, SSchemaWrapper* pSW) {
+static FORCE_INLINE void* taosDecodeSSchemaWrapper(const void* buf, SSchemaWrapper* pSW) {
   buf = taosDecodeFixedU32(buf, &pSW->nCols);
   pSW->pSchema = (SSchema*)taosMemoryCalloc(pSW->nCols, sizeof(SSchema));
   if (pSW->pSchema == NULL) {
@@ -2205,7 +2166,7 @@ static FORCE_INLINE void* taosDecodeSSchemaWrapper(void* buf, SSchemaWrapper* pS
   for (int32_t i = 0; i < pSW->nCols; i++) {
     buf = taosDecodeSSchema(buf, &pSW->pSchema[i]);
   }
-  return buf;
+  return (void*)buf;
 }
 
 static FORCE_INLINE int32_t tEncodeSSchemaWrapper(SCoder* pEncoder, const SSchemaWrapper* pSW) {
@@ -2612,6 +2573,10 @@ static FORCE_INLINE int32_t tEncodeSMqDataBlkRsp(void** buf, const SMqDataBlkRsp
       void*   data = taosArrayGetP(pRsp->blockData, i);
       tlen += taosEncodeFixedI32(buf, bLen);
       tlen += taosEncodeBinary(buf, data, bLen);
+      if (pRsp->withSchema) {
+        SSchemaWrapper* pSW = (SSchemaWrapper*)taosArrayGetP(pRsp->blockSchema, i);
+        tlen += taosEncodeSSchemaWrapper(buf, pSW);
+      }
     }
   }
   return tlen;
@@ -2624,6 +2589,7 @@ static FORCE_INLINE void* tDecodeSMqDataBlkRsp(const void* buf, SMqDataBlkRsp* p
   buf = taosDecodeFixedI32(buf, &pRsp->blockNum);
   pRsp->blockData = taosArrayInit(pRsp->blockNum, sizeof(void*));
   pRsp->blockDataLen = taosArrayInit(pRsp->blockNum, sizeof(void*));
+  pRsp->blockSchema = taosArrayInit(pRsp->blockNum, sizeof(void*));
   if (pRsp->blockNum != 0) {
     buf = taosDecodeFixedI8(buf, &pRsp->withTbName);
     buf = taosDecodeFixedI8(buf, &pRsp->withSchema);
@@ -2636,6 +2602,11 @@ static FORCE_INLINE void* tDecodeSMqDataBlkRsp(const void* buf, SMqDataBlkRsp* p
       buf = taosDecodeBinary(buf, &data, bLen);
       taosArrayPush(pRsp->blockDataLen, &bLen);
       taosArrayPush(pRsp->blockData, &data);
+      if (pRsp->withSchema) {
+        SSchemaWrapper* pSW = (SSchemaWrapper*)taosMemoryMalloc(sizeof(SSchemaWrapper));
+        buf = taosDecodeSSchemaWrapper(buf, pSW);
+        taosArrayPush(pRsp->blockSchema, &pSW);
+      }
     }
   }
   return (void*)buf;
diff --git a/include/libs/function/function.h b/include/libs/function/function.h
index 004d834287..ef32533e5f 100644
--- a/include/libs/function/function.h
+++ b/include/libs/function/function.h
@@ -37,7 +37,7 @@ typedef struct SFuncExecEnv {
 typedef bool (*FExecGetEnv)(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 typedef bool (*FExecInit)(struct SqlFunctionCtx *pCtx, struct SResultRowEntryInfo* pResultCellInfo);
 typedef int32_t (*FExecProcess)(struct SqlFunctionCtx *pCtx);
-typedef int32_t (*FExecFinalize)(struct SqlFunctionCtx *pCtx, SSDataBlock* pBlock, int32_t slotId);
+typedef int32_t (*FExecFinalize)(struct SqlFunctionCtx *pCtx, SSDataBlock* pBlock);
 typedef int32_t (*FScalarExecProcess)(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput);
 
 typedef struct SScalarFuncExecFuncs {
@@ -141,8 +141,7 @@ struct SResultRowEntryInfo;
 
 //for selectivity query, the corresponding tag value is assigned if the data is qualified
 typedef struct SSubsidiaryResInfo {
-  int16_t                 bufLen;      // keep the tags data for top/bottom query result
-  int16_t                 numOfCols;
+  int16_t num;
   struct SqlFunctionCtx **pCtx;
 } SSubsidiaryResInfo;
 
@@ -187,8 +186,8 @@ typedef struct SqlFunctionCtx {
   uint8_t          currentStage;  // record current running step, default: 0
   bool             isAggSet;
   int64_t          startTs;       // timestamp range of current query when function is executed on a specific data block, TODO remove it
-  /////////////////////////////////////////////////////////////////
   bool             stableQuery;
+  /////////////////////////////////////////////////////////////////
   int16_t          functionId;    // function id
   char *           pOutput;       // final result output buffer, point to sdata->data
   int32_t          numOfParams;
@@ -198,11 +197,15 @@ typedef struct SqlFunctionCtx {
   int32_t          offset;
   SVariant         tag;
   struct  SResultRowEntryInfo *resultInfo;
-  SSubsidiaryResInfo     subsidiaryRes;
-  SPoint1          start;
-  SPoint1          end;
-  SFuncExecFuncs   fpSet;
-  SScalarFuncExecFuncs sfp;
+  SSubsidiaryResInfo     subsidiaries;
+  SPoint1                start;
+  SPoint1                end;
+  SFuncExecFuncs         fpSet;
+  SScalarFuncExecFuncs   sfp;
+  SExprInfo             *pExpr;
+  struct SDiskbasedBuf  *pBuf;
+  struct SSDataBlock    *pSrcBlock;
+  int32_t                curBufPage;
 } SqlFunctionCtx;
 
 enum {
@@ -319,6 +322,20 @@ struct SUdfInfo;
 void qAddUdfInfo(uint64_t id, struct SUdfInfo* pUdfInfo);
 void qRemoveUdfInfo(uint64_t id, struct SUdfInfo* pUdfInfo);
 
+/**
+ * create udfd proxy, called once in process that call setupUdf/callUdfxxx/teardownUdf
+ * @return error code
+ */
+int32_t udfcOpen();
+
+/**
+ * destroy udfd proxy
+ * @return error code
+ */
+int32_t udfcClose();
+
+typedef void *UdfcFuncHandle;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 1d7b8b8a09..f0c3cc4b14 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -252,7 +252,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_MND_COLUMN_NOT_EXIST          TAOS_DEF_ERROR_CODE(0, 0x03AE)
 
 // mnode-infoSchema
-#define TSDB_CODE_MND_INVALID_INFOS_TBL         TAOS_DEF_ERROR_CODE(0, 0x03B0)
+#define TSDB_CODE_MND_INVALID_SYS_TABLENAME         TAOS_DEF_ERROR_CODE(0, 0x03B0)
 
 // mnode-func
 #define TSDB_CODE_MND_FUNC_ALREADY_EXIST        TAOS_DEF_ERROR_CODE(0, 0x03C0)
diff --git a/include/util/tconfig.h b/include/util/tconfig.h
index 012368d9cb..06fa9fd9aa 100644
--- a/include/util/tconfig.h
+++ b/include/util/tconfig.h
@@ -30,6 +30,7 @@ typedef enum {
   CFG_STYPE_CFG_FILE,
   CFG_STYPE_ENV_FILE,
   CFG_STYPE_ENV_VAR,
+  CFG_STYPE_ENV_CMD,
   CFG_STYPE_APOLLO_URL,
   CFG_STYPE_ARG_LIST,
   CFG_STYPE_TAOS_OPTIONS
@@ -82,7 +83,7 @@ typedef struct SConfig {
 } SConfig;
 
 SConfig *cfgInit();
-int32_t  cfgLoad(SConfig *pCfg, ECfgSrcType cfgType, const char *sourceStr);
+int32_t  cfgLoad(SConfig *pCfg, ECfgSrcType cfgType, const void *sourceStr);
 int32_t  cfgLoadFromArray(SConfig *pCfg, SArray *pArgs);  // SConfigPair
 void     cfgCleanup(SConfig *pCfg);
 
@@ -105,6 +106,8 @@ const char *cfgDtypeStr(ECfgDataType type);
 
 void cfgDumpCfg(SConfig *pCfg, bool tsc, bool dump);
 
+int32_t cfgGetApollUrl(const char **envCmd, const char *envFile, char* apolloUrl);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/util/tenv.h b/include/util/tenv.h
new file mode 100644
index 0000000000..1410e23f90
--- /dev/null
+++ b/include/util/tenv.h
@@ -0,0 +1,33 @@
+
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TD_ENV_H_
+#define _TD_ENV_H_
+
+#include "os.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int32_t taosEnvNameToCfgName(const char *envNameStr, char *cfgNameStr, int32_t cfgNameMaxLen);
+int32_t taosEnvToCfg(const char *envStr, char *cfgStr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_ENV_H_*/
diff --git a/include/util/tjson.h b/include/util/tjson.h
index 286a7e65fc..d23f7b402e 100644
--- a/include/util/tjson.h
+++ b/include/util/tjson.h
@@ -49,6 +49,8 @@ int32_t tjsonAddItemToObject(SJson* pJson, const char* pName, SJson* pItem);
 int32_t tjsonAddItemToArray(SJson* pJson, SJson* pItem);
 
 SJson*  tjsonGetObjectItem(const SJson* pJson, const char* pName);
+int32_t tjsonGetObjectName(const SJson* pJson, char** pName);
+int32_t tjsonGetObjectValueString(const SJson* pJson, char** pStringValue);
 int32_t tjsonGetStringValue(const SJson* pJson, const char* pName, char* pVal);
 int32_t tjsonDupStringValue(const SJson* pJson, const char* pName, char** pVal);
 int32_t tjsonGetBigIntValue(const SJson* pJson, const char* pName, int64_t* pVal);
@@ -81,6 +83,7 @@ char* tjsonToUnformattedString(const SJson* pJson);
 
 SJson* tjsonParse(const char* pStr);
 bool   tjsonValidateJson(const char* pJson);
+const char* tjsonGetError();
 
 #ifdef __cplusplus
 }
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 814caf330a..c0237a184a 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -231,6 +231,10 @@ static FORCE_INLINE SReqResultInfo* tmqGetNextResInfo(TAOS_RES* res, bool conver
   msg->resIter++;
   if (msg->resIter < msg->rsp.blockNum) {
     SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)taosArrayGetP(msg->rsp.blockData, msg->resIter);
+    if (msg->rsp.withSchema) {
+      SSchemaWrapper* pSW = (SSchemaWrapper*)taosArrayGetP(msg->rsp.blockSchema, msg->resIter);
+      setResSchemaInfo(&msg->resInfo, pSW->pSchema, pSW->nCols);
+    }
     setQueryResultFromRsp(&msg->resInfo, pRetrieve, convertUcs4);
     return &msg->resInfo;
   }
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 9a34334466..596c3d3fbf 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -254,12 +254,12 @@ void taos_init_imp(void) {
 
   deltaToUtcInitOnce();
 
-  if (taosCreateLog("taoslog", 10, configDir, NULL, NULL, NULL, 1) != 0) {
+  if (taosCreateLog("taoslog", 10, configDir, NULL, NULL, NULL, NULL, 1) != 0) {
     tscInitRes = -1;
     return;
   }
 
-  if (taosInitCfg(configDir, NULL, NULL, NULL, 1) != 0) {
+  if (taosInitCfg(configDir, NULL, NULL, NULL, NULL, 1) != 0) {
     tscInitRes = -1;
     return;
   }
diff --git a/source/client/src/clientHb.c b/source/client/src/clientHb.c
index 6159da9cb1..b11a49fa1a 100644
--- a/source/client/src/clientHb.c
+++ b/source/client/src/clientHb.c
@@ -14,9 +14,9 @@
  */
 
 #include "catalog.h"
-#include "scheduler.h"
 #include "clientInt.h"
 #include "clientLog.h"
+#include "scheduler.h"
 #include "trpc.h"
 
 static SClientHbMgr clientHbMgr = {0};
@@ -110,7 +110,8 @@ static int32_t hbProcessStbInfoRsp(void *value, int32_t valueLen, struct SCatalo
 static int32_t hbQueryHbRspHandle(SAppHbMgr *pAppHbMgr, SClientHbRsp *pRsp) {
   SHbConnInfo *info = taosHashGet(pAppHbMgr->connInfo, &pRsp->connKey, sizeof(SClientHbKey));
   if (NULL == info) {
-    tscWarn("fail to get connInfo, may be dropped, refId:%" PRIx64 ", type:%d", pRsp->connKey.tscRid, pRsp->connKey.connType);
+    tscWarn("fail to get connInfo, may be dropped, refId:%" PRIx64 ", type:%d", pRsp->connKey.tscRid,
+            pRsp->connKey.connType);
     return TSDB_CODE_SUCCESS;
   }
 
@@ -121,7 +122,7 @@ static int32_t hbQueryHbRspHandle(SAppHbMgr *pAppHbMgr, SClientHbRsp *pRsp) {
     } else {
       updateEpSet_s(&pTscObj->pAppInfo->mgmtEp, &pRsp->query->epSet);
       pTscObj->connId = pRsp->query->connId;
-      
+
       if (pRsp->query->killRid) {
         SRequestObj *pRequest = acquireRequest(pRsp->query->killRid);
         if (NULL == pRequest) {
@@ -131,7 +132,7 @@ static int32_t hbQueryHbRspHandle(SAppHbMgr *pAppHbMgr, SClientHbRsp *pRsp) {
           releaseRequest(pRsp->query->killRid);
         }
       }
-      
+
       if (pRsp->query->killConnection) {
         taos_close(pTscObj);
       }
@@ -139,7 +140,7 @@ static int32_t hbQueryHbRspHandle(SAppHbMgr *pAppHbMgr, SClientHbRsp *pRsp) {
       releaseTscObj(pRsp->connKey.tscRid);
     }
   }
-  
+
   int32_t kvNum = pRsp->info ? taosArrayGetSize(pRsp->info) : 0;
 
   tscDebug("hb got %d rsp kv", kvNum);
@@ -236,24 +237,24 @@ static int32_t hbAsyncCallBack(void *param, const SDataBuf *pMsg, int32_t code)
 }
 
 int32_t hbBuildQueryDesc(SQueryHbReqBasic *hbBasic, STscObj *pObj) {
-  int64_t now = taosGetTimestampUs();
+  int64_t    now = taosGetTimestampUs();
   SQueryDesc desc = {0};
-  int32_t code = 0;
+  int32_t    code = 0;
 
-  void   *pIter = taosHashIterate(pObj->pRequests, NULL);
+  void *pIter = taosHashIterate(pObj->pRequests, NULL);
   while (pIter != NULL) {
-    int64_t *rid = pIter;
+    int64_t     *rid = pIter;
     SRequestObj *pRequest = acquireRequest(*rid);
     if (NULL == pRequest) {
       continue;
     }
 
     tstrncpy(desc.sql, pRequest->sqlstr, sizeof(desc.sql));
-    desc.stime    = pRequest->metric.start;
-    desc.queryId  = pRequest->requestId;
+    desc.stime = pRequest->metric.start;
+    desc.queryId = pRequest->requestId;
     desc.useconds = now - pRequest->metric.start;
-    desc.reqRid   = pRequest->self;
-    desc.pid      = hbBasic->pid;
+    desc.reqRid = pRequest->self;
+    desc.pid = hbBasic->pid;
     taosGetFqdn(desc.fqdn);
     desc.subPlanNum = pRequest->body.pDag ? pRequest->body.pDag->numOfSubplans : 0;
 
@@ -271,9 +272,9 @@ int32_t hbBuildQueryDesc(SQueryHbReqBasic *hbBasic, STscObj *pObj) {
       }
     }
 
-    releaseRequest(*rid);    
+    releaseRequest(*rid);
     taosArrayPush(hbBasic->queryDesc, &desc);
-    
+
     pIter = taosHashIterate(pObj->pRequests, pIter);
   }
 
@@ -286,14 +287,14 @@ int32_t hbGetQueryBasicInfo(SClientHbKey *connKey, SClientHbReq *req) {
     tscWarn("tscObj rid %" PRIx64 " not exist", connKey->tscRid);
     return TSDB_CODE_QRY_APP_ERROR;
   }
-  
+
   int32_t numOfQueries = pTscObj->pRequests ? taosHashGetSize(pTscObj->pRequests) : 0;
   if (numOfQueries <= 0) {
     releaseTscObj(connKey->tscRid);
     tscDebug("no queries on connection");
     return TSDB_CODE_QRY_APP_ERROR;
   }
-  
+
   SQueryHbReqBasic *hbBasic = (SQueryHbReqBasic *)taosMemoryCalloc(1, sizeof(SQueryHbReqBasic));
   if (NULL == hbBasic) {
     tscError("calloc %d failed", (int32_t)sizeof(SQueryHbReqBasic));
@@ -308,7 +309,7 @@ int32_t hbGetQueryBasicInfo(SClientHbKey *connKey, SClientHbReq *req) {
     taosMemoryFree(hbBasic);
     return TSDB_CODE_QRY_OUT_OF_MEMORY;
   }
-  
+
   hbBasic->connId = pTscObj->connId;
   hbBasic->pid = taosGetPId();
   taosGetAppName(hbBasic->app, NULL);
@@ -405,7 +406,7 @@ int32_t hbQueryHbReqHandle(SClientHbKey *connKey, void *param, SClientHbReq *req
   }
 
   hbGetQueryBasicInfo(connKey, req);
-  
+
   code = hbGetExpiredDBInfo(connKey, pCatalog, req);
   if (TSDB_CODE_SUCCESS != code) {
     return code;
@@ -471,10 +472,10 @@ SClientHbBatchReq *hbGatherAllInfo(SAppHbMgr *pAppHbMgr) {
     pIter = taosHashIterate(pAppHbMgr->activeInfo, pIter);
   }
 
-//  if (code) {
-//    taosArrayDestroyEx(pBatchReq->reqs, hbFreeReq);
-//    taosMemoryFreeClear(pBatchReq);
-//  }
+  //  if (code) {
+  //    taosArrayDestroyEx(pBatchReq->reqs, hbFreeReq);
+  //    taosMemoryFreeClear(pBatchReq);
+  //  }
 
   return pBatchReq;
 }
@@ -630,24 +631,23 @@ void appHbMgrCleanup(void) {
   int sz = taosArrayGetSize(clientHbMgr.appHbMgrs);
   for (int i = 0; i < sz; i++) {
     SAppHbMgr *pTarget = taosArrayGetP(clientHbMgr.appHbMgrs, i);
-    
-    void   *pIter = taosHashIterate(pTarget->activeInfo, NULL);
+
+    void *pIter = taosHashIterate(pTarget->activeInfo, NULL);
     while (pIter != NULL) {
       SClientHbReq *pOneReq = pIter;
       hbFreeReq(pOneReq);
       taosHashCleanup(pOneReq->info);
       pIter = taosHashIterate(pTarget->activeInfo, pIter);
-    }    
+    }
     taosHashCleanup(pTarget->activeInfo);
     pTarget->activeInfo = NULL;
 
-
     pIter = taosHashIterate(pTarget->connInfo, NULL);
     while (pIter != NULL) {
       SHbConnInfo *info = pIter;
       taosMemoryFree(info->param);
       pIter = taosHashIterate(pTarget->connInfo, pIter);
-    }    
+    }
     taosHashCleanup(pTarget->connInfo);
     pTarget->connInfo = NULL;
 
@@ -668,13 +668,13 @@ int hbMgrInit() {
   hbMgrInitHandle();
 
   // init backgroud thread
-  //hbCreateThread();
+  /*hbCreateThread();*/
 
   return 0;
 }
 
 void hbMgrCleanUp() {
-  //hbStopThread();
+  // hbStopThread();
 
   // destroy all appHbMgr
   int8_t old = atomic_val_compare_exchange_8(&clientHbMgr.inited, 1, 0);
@@ -747,11 +747,11 @@ void hbDeregisterConn(SAppHbMgr *pAppHbMgr, SClientHbKey connKey) {
     taosMemoryFree(info->param);
     taosHashRemove(pAppHbMgr->connInfo, &connKey, sizeof(SClientHbKey));
   }
-  
+
   if (NULL == pReq || NULL == info) {
     return;
   }
-  
+
   atomic_sub_fetch_32(&pAppHbMgr->connKeyCnt, 1);
 }
 
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 367baef53f..a40edbb65a 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -105,9 +105,9 @@ TAOS* taos_connect_internal(const char* ip, const char* user, const char* pass,
     epSet.epSet.eps[0].port = port;
   }
 
-  char*          key = getClusterKey(user, secretEncrypt, ip, port);
-  SAppInstInfo** pInst = NULL;
+  char* key = getClusterKey(user, secretEncrypt, ip, port);
 
+  SAppInstInfo** pInst = NULL;
   taosThreadMutexLock(&appInfo.mutex);
 
   pInst = taosHashGet(appInfo.pInstMap, key, strlen(key));
@@ -226,17 +226,15 @@ int32_t execDdlQuery(SRequestObj* pRequest, SQuery* pQuery) {
 
 int32_t getPlan(SRequestObj* pRequest, SQuery* pQuery, SQueryPlan** pPlan, SArray* pNodeList) {
   pRequest->type = pQuery->msgType;
-  SPlanContext cxt = {
-    .queryId = pRequest->requestId,
-    .acctId = pRequest->pTscObj->acctId,
-    .mgmtEpSet = getEpSet_s(&pRequest->pTscObj->pAppInfo->mgmtEp),
-    .pAstRoot = pQuery->pRoot,
-    .showRewrite = pQuery->showRewrite,
-    .pTransporter = pRequest->pTscObj->pAppInfo->pTransporter,
-    .pMsg = pRequest->msgBuf,
-    .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE
-  };
-  int32_t code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &cxt.pCatalog);
+  SPlanContext cxt = {.queryId = pRequest->requestId,
+                      .acctId = pRequest->pTscObj->acctId,
+                      .mgmtEpSet = getEpSet_s(&pRequest->pTscObj->pAppInfo->mgmtEp),
+                      .pAstRoot = pQuery->pRoot,
+                      .showRewrite = pQuery->showRewrite,
+                      .pTransporter = pRequest->pTscObj->pAppInfo->pTransporter,
+                      .pMsg = pRequest->msgBuf,
+                      .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE};
+  int32_t      code = catalogGetHandle(pRequest->pTscObj->pAppInfo->clusterId, &cxt.pCatalog);
   if (TSDB_CODE_SUCCESS == code) {
     code = qCreateQueryPlan(&cxt, pPlan, pNodeList);
   }
@@ -247,6 +245,7 @@ void setResSchemaInfo(SReqResultInfo* pResInfo, const SSchema* pSchema, int32_t
   ASSERT(pSchema != NULL && numOfCols > 0);
 
   pResInfo->numOfCols = numOfCols;
+  // TODO handle memory leak
   pResInfo->fields = taosMemoryCalloc(numOfCols, sizeof(TAOS_FIELD));
   pResInfo->userFields = taosMemoryCalloc(numOfCols, sizeof(TAOS_FIELD));
 
@@ -282,7 +281,7 @@ int32_t scheduleQuery(SRequestObj* pRequest, SQueryPlan* pDag, SArray* pNodeList
 
   SQueryResult res = {.code = 0, .numOfRows = 0, .msgSize = ERROR_MSG_BUF_DEFAULT_SIZE, .msg = pRequest->msgBuf};
   int32_t      code = schedulerExecJob(pTransporter, pNodeList, pDag, &pRequest->body.queryJob, pRequest->sqlstr,
-                                  pRequest->metric.start, &res);
+                                       pRequest->metric.start, &res);
   if (code != TSDB_CODE_SUCCESS) {
     if (pRequest->body.queryJob != 0) {
       schedulerFreeJob(pRequest->body.queryJob);
@@ -840,10 +839,21 @@ int32_t setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32
     return code;
   }
 
-  int32_t* colLength = (int32_t*)pResultInfo->pData;
-  char*    pStart = ((char*)pResultInfo->pData) + sizeof(int32_t) * numOfCols;
+  char* p = (char*)pResultInfo->pData;
+
+  int32_t dataLen = *(int32_t*)p;
+  p += sizeof(int32_t);
+
+  uint64_t groupId = *(uint64_t*)p;
+  p += sizeof(uint64_t);
+
+  int32_t* colLength = (int32_t*)p;
+  p += sizeof(int32_t) * numOfCols;
+
+  char* pStart = p;
   for (int32_t i = 0; i < numOfCols; ++i) {
     colLength[i] = htonl(colLength[i]);
+    ASSERT(colLength[i] < dataLen);
 
     if (IS_VAR_DATA_TYPE(pResultInfo->fields[i].type)) {
       pResultInfo->pCol[i].offset = (int32_t*)pStart;
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index d576f28cb4..988406c84d 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -376,7 +376,7 @@ tmq_t* tmq_consumer_new(tmq_conf_t* conf, char* errstr, int32_t errstrLen) {
 
   ASSERT(user);
   ASSERT(pass);
-  ASSERT(conf->db);
+  /*ASSERT(conf->db);*/
   ASSERT(conf->groupId[0]);
 
   pTmq->pTscObj = taos_connect_internal(conf->ip, user, pass, NULL, conf->db, conf->port, CONN_TYPE__TMQ);
@@ -1118,7 +1118,9 @@ SMqRspObj* tmqBuildRspFromWrapper(SMqPollRspWrapper* pWrapper) {
 
   pRspObj->resInfo.totalRows = 0;
   pRspObj->resInfo.precision = TSDB_TIME_PRECISION_MILLI;
-  setResSchemaInfo(&pRspObj->resInfo, pWrapper->topicHandle->schema.pSchema, pWrapper->topicHandle->schema.nCols);
+  if (!pWrapper->msg.withSchema) {
+    setResSchemaInfo(&pRspObj->resInfo, pWrapper->topicHandle->schema.pSchema, pWrapper->topicHandle->schema.nCols);
+  }
 
   taosFreeQitem(pWrapper);
   return pRspObj;
diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index 800bcd70ce..09452b584d 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -644,12 +644,12 @@ size_t blockDataGetRowSize(SSDataBlock* pBlock) {
 
 /**
  * @refitem blockDataToBuf for the meta size
- *
  * @param pBlock
  * @return
  */
 size_t blockDataGetSerialMetaSize(const SSDataBlock* pBlock) {
-  return sizeof(int32_t) + pBlock->info.numOfCols * sizeof(int32_t);
+  // | total rows/total length | block group id | each column length |
+  return sizeof(int32_t) + sizeof(uint64_t) + pBlock->info.numOfCols * sizeof(int32_t);
 }
 
 double blockDataGetSerialRowSize(const SSDataBlock* pBlock) {
@@ -1219,7 +1219,6 @@ void colDataDestroy(SColumnInfoData* pColData) {
   taosMemoryFree(pColData->pData);
 }
 
-
 static void doShiftBitmap(char* nullBitmap, size_t n, size_t total) {
   int32_t len = BitmapLen(total);
 
diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index 33999ea14c..bbf14b2fdc 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -220,7 +220,7 @@ struct SConfig *taosGetCfg() {
   return tsCfg;
 }
 
-static int32_t taosLoadCfg(SConfig *pCfg, const char *inputCfgDir, const char *envFile, const char *apolloUrl) {
+static int32_t taosLoadCfg(SConfig *pCfg, const char **envCmd, const char *inputCfgDir, const char *envFile, char *apolloUrl) {
   char cfgDir[PATH_MAX] = {0};
   char cfgFile[PATH_MAX + 100] = {0};
 
@@ -231,6 +231,8 @@ static int32_t taosLoadCfg(SConfig *pCfg, const char *inputCfgDir, const char *e
     tstrncpy(cfgFile, cfgDir, sizeof(cfgDir));
   }
 
+  if (apolloUrl == NULL || apolloUrl[0] == '\0') cfgGetApollUrl(envCmd, envFile, apolloUrl);
+
   if (cfgLoad(pCfg, CFG_STYPE_APOLLO_URL, apolloUrl) != 0) {
     uError("failed to load from apollo url:%s since %s", apolloUrl, terrstr());
     return -1;
@@ -251,6 +253,11 @@ static int32_t taosLoadCfg(SConfig *pCfg, const char *inputCfgDir, const char *e
     return -1;
   }
 
+  if (cfgLoad(pCfg, CFG_STYPE_ENV_CMD, envCmd) != 0) {
+    uError("failed to load from cmd env variables since %s", terrstr());
+    return -1;
+  }
+
   return 0;
 }
 
@@ -325,8 +332,8 @@ static int32_t taosAddSystemCfg(SConfig *pCfg) {
   if (cfgAddFloat(pCfg, "numOfCores", tsNumOfCores, 0, 100000, 1) != 0) return -1;
   if (cfgAddInt64(pCfg, "openMax", tsOpenMax, 0, INT64_MAX, 1) != 0) return -1;
   if (cfgAddInt64(pCfg, "streamMax", tsStreamMax, 0, INT64_MAX, 1) != 0) return -1;
-  if (cfgAddInt32(pCfg, "pageSize(KB)", tsPageSizeKB, 0, INT64_MAX, 1) != 0) return -1;
-  if (cfgAddInt64(pCfg, "totalMemory(KB)", tsTotalMemoryKB, 0, INT64_MAX, 1) != 0) return -1;
+  if (cfgAddInt32(pCfg, "pageSizeKB", tsPageSizeKB, 0, INT64_MAX, 1) != 0) return -1;
+  if (cfgAddInt64(pCfg, "totalMemoryKB", tsTotalMemoryKB, 0, INT64_MAX, 1) != 0) return -1;
   if (cfgAddString(pCfg, "os sysname", info.sysname, 1) != 0) return -1;
   if (cfgAddString(pCfg, "os nodename", info.nodename, 1) != 0) return -1;
   if (cfgAddString(pCfg, "os release", info.release, 1) != 0) return -1;
@@ -572,8 +579,8 @@ static int32_t taosSetServerCfg(SConfig *pCfg) {
   return 0;
 }
 
-int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDir, const char *envFile,
-                      const char *apolloUrl, SArray *pArgs, bool tsc) {
+int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDir, const char **envCmd, const char *envFile,
+                      char *apolloUrl, SArray *pArgs, bool tsc) {
   osDefaultInit();
 
   SConfig *pCfg = cfgInit();
@@ -588,7 +595,7 @@ int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDi
     if (taosAddServerLogCfg(pCfg) != 0) return -1;
   }
 
-  if (taosLoadCfg(pCfg, cfgDir, envFile, apolloUrl) != 0) {
+  if (taosLoadCfg(pCfg, envCmd, cfgDir, envFile, apolloUrl) != 0) {
     uError("failed to load cfg since %s", terrstr());
     cfgCleanup(pCfg);
     return -1;
@@ -625,7 +632,7 @@ int32_t taosCreateLog(const char *logname, int32_t logFileNum, const char *cfgDi
   return 0;
 }
 
-int32_t taosInitCfg(const char *cfgDir, const char *envFile, const char *apolloUrl, SArray *pArgs, bool tsc) {
+int32_t taosInitCfg(const char *cfgDir, const char **envCmd, const char *envFile, char *apolloUrl, SArray *pArgs, bool tsc) {
   if (tsCfg != NULL) return 0;
   tsCfg = cfgInit();
 
@@ -640,7 +647,7 @@ int32_t taosInitCfg(const char *cfgDir, const char *envFile, const char *apolloU
   }
   taosAddSystemCfg(tsCfg);
 
-  if (taosLoadCfg(tsCfg, cfgDir, envFile, apolloUrl) != 0) {
+  if (taosLoadCfg(tsCfg, envCmd, cfgDir, envFile, apolloUrl) != 0) {
     uError("failed to load cfg since %s", terrstr());
     cfgCleanup(tsCfg);
     tsCfg = NULL;
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 2b3c45aa0d..7abe1186c6 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -93,7 +93,87 @@ STSRow *tGetSubmitBlkNext(SSubmitBlkIter *pIter) {
     return row;
   }
 }
+#if 0
+// TODO: KEEP one suite of iterator API finally.
+// 1) use tInitSubmitMsgIterEx firstly as not decrease the merge conflicts
+// 2) replace tInitSubmitMsgIterEx with tInitSubmitMsgIter later
+// 3) finally, rename tInitSubmitMsgIterEx to tInitSubmitMsgIter
 
+int32_t tInitSubmitMsgIterEx(const SSubmitReq *pMsg, SSubmitMsgIter *pIter) {
+  if (pMsg == NULL) {
+    terrno = TSDB_CODE_TDB_SUBMIT_MSG_MSSED_UP;
+    return -1;
+  }
+
+  pIter->totalLen = htonl(pMsg->length);
+  ASSERT(pIter->totalLen > 0);
+  pIter->len = 0;
+  pIter->pMsg = pMsg;
+  if (pIter->totalLen <= sizeof(SSubmitReq)) {
+    terrno = TSDB_CODE_TDB_SUBMIT_MSG_MSSED_UP;
+    return -1;
+  }
+
+  return 0;
+}
+
+int32_t tGetSubmitMsgNextEx(SSubmitMsgIter *pIter, SSubmitBlk **pPBlock) {
+  ASSERT(pIter->len >= 0);
+
+  if (pIter->len == 0) {
+    pIter->len += sizeof(SSubmitReq);
+  } else {
+    if (pIter->len >= pIter->totalLen) {
+      ASSERT(0);
+    }
+
+    SSubmitBlk *pSubmitBlk = (SSubmitBlk *)POINTER_SHIFT(pIter->pMsg, pIter->len);
+    pIter->len += (sizeof(SSubmitBlk) + pIter->dataLen + pIter->schemaLen);
+    ASSERT(pIter->len > 0);
+  }
+
+  if (pIter->len > pIter->totalLen) {
+    terrno = TSDB_CODE_TDB_SUBMIT_MSG_MSSED_UP;
+    *pPBlock = NULL;
+    return -1;
+  }
+
+  if (pIter->len == pIter->totalLen) {
+    *pPBlock = NULL;
+  } else {
+    *pPBlock = (SSubmitBlk *)POINTER_SHIFT(pIter->pMsg, pIter->len);
+    pIter->uid = htobe64((*pPBlock)->uid);
+    pIter->suid = htobe64((*pPBlock)->suid);
+    pIter->sversion = htonl((*pPBlock)->sversion);
+    pIter->dataLen = htonl((*pPBlock)->dataLen);
+    pIter->schemaLen = htonl((*pPBlock)->schemaLen);
+    pIter->numOfRows = htons((*pPBlock)->numOfRows);
+  }
+  return 0;
+}
+
+int32_t tInitSubmitBlkIterEx(SSubmitMsgIter *pMsgIter, SSubmitBlk *pBlock, SSubmitBlkIter *pIter) {
+  if (pMsgIter->dataLen <= 0) return -1;
+  pIter->totalLen = pMsgIter->dataLen;
+  pIter->len = 0;
+  pIter->row = (STSRow *)(pBlock->data + pMsgIter->schemaLen);
+  return 0;
+}
+
+STSRow *tGetSubmitBlkNextEx(SSubmitBlkIter *pIter) {
+  STSRow *row = pIter->row;
+
+  if (pIter->len >= pIter->totalLen) {
+    return NULL;
+  } else {
+    pIter->len += TD_ROW_LEN(row);
+    if (pIter->len < pIter->totalLen) {
+      pIter->row = POINTER_SHIFT(row, TD_ROW_LEN(row));
+    }
+    return row;
+  }
+}
+#endif
 int32_t tEncodeSEpSet(SCoder *pEncoder, const SEpSet *pEp) {
   if (tEncodeI8(pEncoder, pEp->inUse) < 0) return -1;
   if (tEncodeI8(pEncoder, pEp->numOfEps) < 0) return -1;
diff --git a/source/dnode/mgmt/exe/dmMain.c b/source/dnode/mgmt/exe/dmMain.c
index 4b01c540f7..43237e6e6c 100644
--- a/source/dnode/mgmt/exe/dmMain.c
+++ b/source/dnode/mgmt/exe/dmMain.c
@@ -24,6 +24,7 @@ static struct {
   bool         printVersion;
   char         envFile[PATH_MAX];
   char         apolloUrl[PATH_MAX];
+  const char **envCmd;
   SArray      *pArgs;  // SConfigPair
   SDnode      *pDnode;
   EDndNodeType ntype;
@@ -56,6 +57,9 @@ static void dmSetSignalHandle() {
 }
 
 static int32_t dmParseArgs(int32_t argc, char const *argv[]) {
+  int32_t cmdEnvIndex = 0;
+  global.envCmd = taosMemoryMalloc(argc-1);
+  memset(global.envCmd, 0, argc-1);
   for (int32_t i = 1; i < argc; ++i) {
     if (strcmp(argv[i], "-c") == 0) {
       if (i < argc - 1) {
@@ -70,7 +74,7 @@ static int32_t dmParseArgs(int32_t argc, char const *argv[]) {
       }
     } else if (strcmp(argv[i], "-a") == 0) {
       tstrncpy(global.apolloUrl, argv[++i], PATH_MAX);
-    } else if (strcmp(argv[i], "-e") == 0) {
+    } else if (strcmp(argv[i], "-E") == 0) {
       tstrncpy(global.envFile, argv[++i], PATH_MAX);
     } else if (strcmp(argv[i], "-n") == 0) {
       global.ntype = atoi(argv[++i]);
@@ -84,6 +88,9 @@ static int32_t dmParseArgs(int32_t argc, char const *argv[]) {
       global.dumpConfig = true;
     } else if (strcmp(argv[i], "-V") == 0) {
       global.printVersion = true;
+    } else if (strcmp(argv[i], "-e") == 0) {
+      global.envCmd[cmdEnvIndex] = argv[++i];
+      cmdEnvIndex++;
     } else {
     }
   }
@@ -129,7 +136,7 @@ static SDnodeOpt dmGetOpt() {
 static int32_t dmInitLog() {
   char logName[12] = {0};
   snprintf(logName, sizeof(logName), "%slog", dmLogName(global.ntype));
-  return taosCreateLog(logName, 1, configDir, global.envFile, global.apolloUrl, global.pArgs, 0);
+  return taosCreateLog(logName, 1, configDir, global.envCmd, global.envFile, global.apolloUrl, global.pArgs, 0);
 }
 
 static void dmSetProcInfo(int32_t argc, char **argv) {
@@ -168,6 +175,10 @@ static int32_t dmRunDnode() {
   return code;
 }
 
+static void taosCleanupArgs() {
+  if (global.envCmd != NULL) taosMemoryFree(global.envCmd);
+}
+
 int main(int argc, char const *argv[]) {
   if (!taosCheckSystemIsSmallEnd()) {
     printf("failed to start since on non-small-end machines\n");
@@ -176,26 +187,31 @@ int main(int argc, char const *argv[]) {
 
   if (dmParseArgs(argc, argv) != 0) {
     printf("failed to start since parse args error\n");
+    taosCleanupArgs();
     return -1;
   }
 
   if (global.generateGrant) {
     dmGenerateGrant();
+    taosCleanupArgs();
     return 0;
   }
 
   if (global.printVersion) {
     dmPrintVersion();
+    taosCleanupArgs();
     return 0;
   }
 
   if (dmInitLog() != 0) {
-    dError("failed to start since init log error");
+    printf("failed to start since init log error");
+    taosCleanupArgs();
     return -1;
   }
 
-  if (taosInitCfg(configDir, global.envFile, global.apolloUrl, global.pArgs, 0) != 0) {
+  if (taosInitCfg(configDir, global.envCmd, global.envFile, global.apolloUrl, global.pArgs, 0) != 0) {
     dError("failed to start since read config error");
+    taosCleanupArgs();
     return -1;
   }
 
@@ -203,9 +219,11 @@ int main(int argc, char const *argv[]) {
     dmDumpCfg();
     taosCleanupCfg();
     taosCloseLog();
+    taosCleanupArgs();
     return 0;
   }
 
   dmSetProcInfo(argc, (char **)argv);
+  taosCleanupArgs();
   return dmRunDnode();
 }
diff --git a/source/dnode/mgmt/interface/src/dmFile.c b/source/dnode/mgmt/interface/src/dmFile.c
index e9117939d7..38acf169be 100644
--- a/source/dnode/mgmt/interface/src/dmFile.c
+++ b/source/dnode/mgmt/interface/src/dmFile.c
@@ -124,7 +124,7 @@ TdFilePtr dmCheckRunning(const char *dataDir) {
   TdFilePtr pFile = taosOpenFile(filepath, TD_FILE_CREATE | TD_FILE_WRITE | TD_FILE_TRUNC);
   if (pFile == NULL) {
     terrno = TAOS_SYSTEM_ERROR(errno);
-    dError("failed to lock file:%s since %s", filepath, terrstr());
+    dError("failed to open file:%s since %s", filepath, terrstr());
     return NULL;
   }
 
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 4cc1b8527c..7fc263c93c 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -202,6 +202,17 @@ int32_t vmProcessCreateVnodeReq(SVnodesMgmt *pMgmt, SNodeMsg *pMsg) {
     return code;
   }
 
+  code = vnodeStart(pImpl);
+  if (code != 0) {
+    tFreeSCreateVnodeReq(&createReq);
+    dError("vgId:%d, failed to start sync since %s", createReq.vgId, terrstr());
+    vnodeClose(pImpl);
+    vnodeDestroy(path, pMgmt->pTfs);
+    terrno = code;
+    return code;
+  }
+
+
   code = vmWriteVnodesToFile(pMgmt);
   if (code != 0) {
     tFreeSCreateVnodeReq(&createReq);
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmInt.c b/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
index e784272581..3088c5dea4 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmInt.c
@@ -15,6 +15,7 @@
 
 #define _DEFAULT_SOURCE
 #include "vmInt.h"
+#include "libs/function/function.h"
 
 SVnodeObj *vmAcquireVnode(SVnodesMgmt *pMgmt, int32_t vgId) {
   SVnodeObj *pVnode = NULL;
@@ -73,12 +74,6 @@ int32_t vmOpenVnode(SVnodesMgmt *pMgmt, SWrapperCfg *pCfg, SVnode *pImpl) {
     return -1;
   }
 
-  // sync integration
-  vnodeSyncSetQ(pImpl, NULL);
-  vnodeSyncSetRpc(pImpl, NULL);
-  int32_t ret = vnodeSyncStart(pImpl);
-  assert(ret == 0);
-
   taosWLockLatch(&pMgmt->latch);
   int32_t code = taosHashPut(pMgmt->hash, &pVnode->vgId, sizeof(int32_t), &pVnode, sizeof(SVnodeObj *));
   taosWUnLockLatch(&pMgmt->latch);
@@ -152,6 +147,7 @@ static void *vmOpenVnodeFunc(void *param) {
       pThread->failed++;
     } else {
       vmOpenVnode(pMgmt, pCfg, pImpl);
+      //vnodeStart(pImpl);
       dDebug("vgId:%d, is opened by thread:%d", pCfg->vgId, pThread->threadIndex);
       pThread->opened++;
     }
@@ -275,7 +271,7 @@ static void vmCleanup(SMgmtWrapper *pWrapper) {
   pWrapper->pMgmt = NULL;
 
   // syncCleanUp();
-
+  udfcClose();
   dInfo("vnode-mgmt is cleaned up");
 }
 
@@ -339,6 +335,10 @@ static int32_t vmInit(SMgmtWrapper *pWrapper) {
   }
   dmReportStartup(pDnode, "vnode-vnodes", "initialized");
 
+  if (udfcOpen() != 0) {
+    dError("failed to open udfc in dnode");
+  }
+
   code = 0;
 
 _OVER:
@@ -359,10 +359,52 @@ static int32_t vmRequire(SMgmtWrapper *pWrapper, bool *required) {
   return 0;
 }
 
+static int32_t vmStart(SMgmtWrapper *pWrapper) {
+  dDebug("vnode-mgmt start to run");
+  SVnodesMgmt *pMgmt = pWrapper->pMgmt;
+
+  taosRLockLatch(&pMgmt->latch);
+
+  void *pIter = taosHashIterate(pMgmt->hash, NULL);
+  while (pIter) {
+    SVnodeObj **ppVnode = pIter;
+    if (ppVnode == NULL || *ppVnode == NULL) continue;
+
+    SVnodeObj *pVnode = *ppVnode;
+    vnodeStart(pVnode->pImpl);
+    pIter = taosHashIterate(pMgmt->hash, pIter);
+  }
+
+  taosRUnLockLatch(&pMgmt->latch);
+  return 0;
+}
+
+static void vmStop(SMgmtWrapper *pWrapper) {
+#if 0
+  dDebug("vnode-mgmt start to stop");
+  SVnodesMgmt *pMgmt = pWrapper->pMgmt;
+  taosRLockLatch(&pMgmt->latch);
+
+  void *pIter = taosHashIterate(pMgmt->hash, NULL);
+  while (pIter) {
+    SVnodeObj **ppVnode = pIter;
+    if (ppVnode == NULL || *ppVnode == NULL) continue;
+
+    SVnodeObj *pVnode = *ppVnode;
+    vnodeStop(pVnode->pImpl);
+    pIter = taosHashIterate(pMgmt->hash, pIter);
+  }
+
+  taosRUnLockLatch(&pMgmt->latch);
+#endif
+}
+
 void vmSetMgmtFp(SMgmtWrapper *pWrapper) {
   SMgmtFp mgmtFp = {0};
   mgmtFp.openFp = vmInit;
   mgmtFp.closeFp = vmCleanup;
+  mgmtFp.startFp = vmStart;
+  mgmtFp.stopFp = vmStop;
   mgmtFp.requiredFp = vmRequire;
 
   vmInitMsgHandle(pWrapper);
@@ -391,4 +433,4 @@ void vmGetVnodeLoads(SMgmtWrapper *pWrapper, SMonVloadInfo *pInfo) {
   }
 
   taosRUnLockLatch(&pMgmt->latch);
-}
\ No newline at end of file
+}
diff --git a/source/dnode/mnode/impl/src/mndInfoSchema.c b/source/dnode/mnode/impl/src/mndInfoSchema.c
index 5dbbd27930..2b46fc9274 100644
--- a/source/dnode/mnode/impl/src/mndInfoSchema.c
+++ b/source/dnode/mnode/impl/src/mndInfoSchema.c
@@ -325,7 +325,7 @@ static int32_t mndInsInitMeta(SHashObj *hash) {
       return -1;
     }
 
-    if (taosHashPut(hash, meta.tbName, strlen(meta.tbName) + 1, &meta, sizeof(meta))) {
+    if (taosHashPut(hash, meta.tbName, strlen(meta.tbName), &meta, sizeof(meta))) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return -1;
     }
@@ -340,10 +340,10 @@ int32_t mndBuildInsTableSchema(SMnode *pMnode, const char *dbFName, const char *
     return -1;
   }
 
-  STableMetaRsp *pMeta = taosHashGet(pMnode->infosMeta, tbName, strlen(tbName) + 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_INFOS_TBL;
+    terrno = TSDB_CODE_MND_INVALID_SYS_TABLENAME;
     return -1;
   }
 
diff --git a/source/dnode/mnode/impl/src/mndPerfSchema.c b/source/dnode/mnode/impl/src/mndPerfSchema.c
index 737068a2dd..a0ecbe9ae4 100644
--- a/source/dnode/mnode/impl/src/mndPerfSchema.c
+++ b/source/dnode/mnode/impl/src/mndPerfSchema.c
@@ -128,7 +128,7 @@ int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char
   STableMetaRsp *meta = (STableMetaRsp *)taosHashGet(pMnode->perfsMeta, tbName, strlen(tbName));
   if (NULL == meta) {
     mError("invalid performance schema table name:%s", tbName);
-    terrno = TSDB_CODE_MND_INVALID_INFOS_TBL;
+    terrno = TSDB_CODE_MND_INVALID_SYS_TABLENAME;
     return -1;
   }
 
diff --git a/source/dnode/mnode/impl/src/mndScheduler.c b/source/dnode/mnode/impl/src/mndScheduler.c
index 73583058f1..3dff65866c 100644
--- a/source/dnode/mnode/impl/src/mndScheduler.c
+++ b/source/dnode/mnode/impl/src/mndScheduler.c
@@ -476,33 +476,37 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
 int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscribeObj* pSub) {
   SSdb*       pSdb = pMnode->pSdb;
   SVgObj*     pVgroup = NULL;
-  SQueryPlan* pPlan = qStringToQueryPlan(pTopic->physicalPlan);
-  if (pPlan == NULL) {
-    terrno = TSDB_CODE_QRY_INVALID_INPUT;
-    return -1;
+  SQueryPlan* pPlan = NULL;
+  SSubplan*   plan = NULL;
+  if (pTopic->subType == TOPIC_SUB_TYPE__TABLE) {
+    pPlan = qStringToQueryPlan(pTopic->physicalPlan);
+    if (pPlan == NULL) {
+      terrno = TSDB_CODE_QRY_INVALID_INPUT;
+      return -1;
+    }
+
+    ASSERT(pSub->vgNum == -1);
+
+    pSub->vgNum = 0;
+
+    int32_t levelNum = LIST_LENGTH(pPlan->pSubplans);
+    if (levelNum != 1) {
+      qDestroyQueryPlan(pPlan);
+      terrno = TSDB_CODE_MND_UNSUPPORTED_TOPIC;
+      return -1;
+    }
+
+    SNodeListNode* inner = nodesListGetNode(pPlan->pSubplans, 0);
+
+    int32_t opNum = LIST_LENGTH(inner->pNodeList);
+    if (opNum != 1) {
+      qDestroyQueryPlan(pPlan);
+      terrno = TSDB_CODE_MND_UNSUPPORTED_TOPIC;
+      return -1;
+    }
+    plan = nodesListGetNode(inner->pNodeList, 0);
   }
 
-  ASSERT(pSub->vgNum == -1);
-
-  pSub->vgNum = 0;
-
-  int32_t levelNum = LIST_LENGTH(pPlan->pSubplans);
-  if (levelNum != 1) {
-    qDestroyQueryPlan(pPlan);
-    terrno = TSDB_CODE_MND_UNSUPPORTED_TOPIC;
-    return -1;
-  }
-
-  SNodeListNode* inner = nodesListGetNode(pPlan->pSubplans, 0);
-
-  int32_t opNum = LIST_LENGTH(inner->pNodeList);
-  if (opNum != 1) {
-    qDestroyQueryPlan(pPlan);
-    terrno = TSDB_CODE_MND_UNSUPPORTED_TOPIC;
-    return -1;
-  }
-  SSubplan* plan = nodesListGetNode(inner->pNodeList, 0);
-
   int64_t             unexistKey = -1;
   SMqConsumerEpInSub* pEpInSub = taosHashGet(pSub->consumerHash, &unexistKey, sizeof(int64_t));
   ASSERT(pEpInSub);
@@ -519,38 +523,35 @@ int32_t mndSchedInitSubEp(SMnode* pMnode, const SMqTopicObj* pTopic, SMqSubscrib
     }
 
     pSub->vgNum++;
-    plan->execNode.nodeId = pVgroup->vgId;
-    plan->execNode.epSet = mndGetVgroupEpset(pMnode, pVgroup);
 
     SMqVgEp* pVgEp = taosMemoryMalloc(sizeof(SMqVgEp));
-    pVgEp->epSet = plan->execNode.epSet;
-    pVgEp->vgId = plan->execNode.nodeId;
-
-#if 0
-    SMqConsumerEp consumerEp = {0};
-    consumerEp.status = 0;
-    consumerEp.consumerId = -1;
-    consumerEp.epSet = plan->execNode.epSet;
-    consumerEp.vgId = plan->execNode.nodeId;
-#endif
+    pVgEp->epSet = mndGetVgroupEpset(pMnode, pVgroup);
+    pVgEp->vgId = pVgroup->vgId;
+    taosArrayPush(pEpInSub->vgs, &pVgEp);
 
     mDebug("init subscribption %s, assign vg: %d", pSub->key, pVgEp->vgId);
 
-    int32_t msgLen;
-    if (qSubPlanToString(plan, &pVgEp->qmsg, &msgLen) < 0) {
-      sdbRelease(pSdb, pVgroup);
-      qDestroyQueryPlan(pPlan);
-      terrno = TSDB_CODE_QRY_INVALID_INPUT;
-      return -1;
+    if (pTopic->subType == TOPIC_SUB_TYPE__TABLE) {
+      int32_t msgLen;
+
+      plan->execNode.epSet = pVgEp->epSet;
+      plan->execNode.nodeId = pVgEp->vgId;
+
+      if (qSubPlanToString(plan, &pVgEp->qmsg, &msgLen) < 0) {
+        sdbRelease(pSdb, pVgroup);
+        qDestroyQueryPlan(pPlan);
+        terrno = TSDB_CODE_QRY_INVALID_INPUT;
+        return -1;
+      }
+    } else {
+      pVgEp->qmsg = strdup("");
     }
-    taosArrayPush(pEpInSub->vgs, &pVgEp);
 
     ASSERT(taosHashGetSize(pSub->consumerHash) == 1);
 
     /*taosArrayPush(pSub->unassignedVg, &consumerEp);*/
   }
 
-  ASSERT(pEpInSub->vgs->size > 0);
   pEpInSub = taosHashGet(pSub->consumerHash, &unexistKey, sizeof(int64_t));
 
   ASSERT(pEpInSub->vgs->size > 0);
diff --git a/source/dnode/mnode/impl/src/mndShow.c b/source/dnode/mnode/impl/src/mndShow.c
index 1ab25f795f..94366a241d 100644
--- a/source/dnode/mnode/impl/src/mndShow.c
+++ b/source/dnode/mnode/impl/src/mndShow.c
@@ -100,6 +100,8 @@ static int32_t convertToRetrieveType(char* name, int32_t len) {
     type = TSDB_MGMT_TABLE_QUERIES;
   }  else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {
     type = TSDB_MGMT_TABLE_VNODES;
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_TOPICS, len) == 0) {
+    type = TSDB_MGMT_TABLE_TOPICS;
   } else {
 //    ASSERT(0);
   }
@@ -187,11 +189,14 @@ static int32_t mndProcessRetrieveSysTableReq(SNodeMsg *pReq) {
   }
 
   if (retrieveReq.showId == 0) {
-    STableMetaRsp *pMeta = (STableMetaRsp *)taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb) + 1);
+    STableMetaRsp *pMeta = (STableMetaRsp *)taosHashGet(pMnode->infosMeta, retrieveReq.tb, strlen(retrieveReq.tb));
     if (pMeta == NULL) {
-      terrno = TSDB_CODE_MND_INVALID_INFOS_TBL;
-      mError("failed to process show-retrieve req:%p since %s", pShow, terrstr());
-      return -1;
+      pMeta = (STableMetaRsp *)taosHashGet(pMnode->perfsMeta, retrieveReq.tb, strlen(retrieveReq.tb));
+      if (pMeta == NULL) {
+        terrno = TSDB_CODE_MND_INVALID_SYS_TABLENAME;
+        mError("failed to process show-retrieve req:%p since %s", pShow, terrstr());
+        return -1;
+      }
     }
 
     pShow = mndCreateShowObj(pMnode, &retrieveReq);
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index d063887372..6332ff8662 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -439,7 +439,6 @@ static void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pSt
       }
     }
     if (pStb->ast2Len > 0) {
-      int32_t qmsgLen2 = 0;
       if (mndConvertRSmaTask(pStb->pAst2, 0, 0, &pRSmaParam->qmsg2, &pRSmaParam->qmsg2Len) != TSDB_CODE_SUCCESS) {
         taosMemoryFreeClear(pRSmaParam->qmsg1);
         taosMemoryFreeClear(req.stbCfg.pRSmaParam);
diff --git a/source/dnode/mnode/impl/src/mndTopic.c b/source/dnode/mnode/impl/src/mndTopic.c
index faddc3a1c5..7c4e51298f 100644
--- a/source/dnode/mnode/impl/src/mndTopic.c
+++ b/source/dnode/mnode/impl/src/mndTopic.c
@@ -282,10 +282,10 @@ static int32_t mndCreateTopic(SMnode *pMnode, SNodeMsg *pReq, SCMCreateTopicReq
   topicObj.version = 1;
   topicObj.sql = strdup(pCreate->sql);
   topicObj.sqlLen = strlen(pCreate->sql) + 1;
-  topicObj.ast = strdup(pCreate->ast);
-  topicObj.astLen = strlen(pCreate->ast) + 1;
 
   if (pCreate->ast && pCreate->ast[0]) {
+    topicObj.ast = strdup(pCreate->ast);
+    topicObj.astLen = strlen(pCreate->ast) + 1;
     topicObj.subType = TOPIC_SUB_TYPE__TABLE;
     topicObj.withTbName = 0;
     topicObj.withSchema = 0;
@@ -314,6 +314,9 @@ static int32_t mndCreateTopic(SMnode *pMnode, SNodeMsg *pReq, SCMCreateTopicReq
       return -1;
     }
   } else {
+    topicObj.ast = strdup("");
+    topicObj.astLen = 1;
+    topicObj.physicalPlan = strdup("");
     topicObj.subType = TOPIC_SUB_TYPE__DB;
     topicObj.withTbName = 1;
     topicObj.withSchema = 1;
@@ -520,8 +523,11 @@ static int32_t mndRetrieveTopic(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     int32_t cols = 0;
 
     char topicName[TSDB_TOPIC_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
-    tstrncpy(&topicName[VARSTR_HEADER_SIZE], pTopic->name, TSDB_TOPIC_NAME_LEN);
-    varDataSetLen(topicName, strlen(&topicName[VARSTR_HEADER_SIZE]));
+
+    SName n;
+    tNameFromString(&n, pTopic->name, T_NAME_ACCT|T_NAME_DB);
+    tNameGetDbName(&n, varDataVal(topicName));
+    varDataSetLen(topicName, strlen(varDataVal(topicName)));
 
     SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)topicName, false);
@@ -535,7 +541,7 @@ static int32_t mndRetrieveTopic(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     varDataSetLen(sql, strlen(&sql[VARSTR_HEADER_SIZE]));
     colDataAppend(pColInfo, numOfRows, (const char *)sql, false);
 
-    taosMemoryFree(sql);
+//    taosMemoryFree(sql);
 
     numOfRows++;
     sdbRelease(pSdb, pTopic);
diff --git a/source/dnode/vnode/inc/vnode.h b/source/dnode/vnode/inc/vnode.h
index f4975c183e..9eab4d3376 100644
--- a/source/dnode/vnode/inc/vnode.h
+++ b/source/dnode/vnode/inc/vnode.h
@@ -61,6 +61,9 @@ int32_t vnodeSync(SVnode *pVnode);
 int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad);
 int     vnodeValidateTableHash(SVnodeCfg *pVnodeOptions, char *tableFName);
 
+int32_t vnodeStart(SVnode *pVnode);
+void    vnodeStop(SVnode *pVnode);
+
 int64_t vnodeGetSyncHandle(SVnode *pVnode);
 void    vnodeGetSnapshot(SVnode *pVnode, SSnapshot *pSnapshot);
 
@@ -171,11 +174,6 @@ typedef struct {
   uint64_t uid;
 } STableKeyInfo;
 
-// sync integration
-void    vnodeSyncSetQ(SVnode *pVnode, void *qHandle);
-void    vnodeSyncSetRpc(SVnode *pVnode, void *rpcHandle);
-int32_t vnodeSyncStart(SVnode *pVnode);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/vnode/src/inc/meta.h b/source/dnode/vnode/src/inc/meta.h
index fb875a46e0..7647929246 100644
--- a/source/dnode/vnode/src/inc/meta.h
+++ b/source/dnode/vnode/src/inc/meta.h
@@ -51,7 +51,7 @@ static FORCE_INLINE tb_uid_t metaGenerateUid(SMeta* pMeta) { return tGenIdPI64()
 #define META_CHILD_TABLE  TD_CHILD_TABLE
 #define META_NORMAL_TABLE TD_NORMAL_TABLE
 
-int             metaCreateTable(SMeta* pMeta, STbCfg* pTbCfg);
+int             metaCreateTable(SMeta* pMeta, STbCfg* pTbCfg, STbDdlH* pHandle);
 int             metaDropTable(SMeta* pMeta, tb_uid_t uid);
 int             metaCommit(SMeta* pMeta);
 int32_t         metaCreateTSma(SMeta* pMeta, SSmaCfg* pCfg);
@@ -74,7 +74,7 @@ tb_uid_t        metaCtbCursorNext(SMCtbCursor* pCtbCur);
 // SMetaDB
 int  metaOpenDB(SMeta* pMeta);
 void metaCloseDB(SMeta* pMeta);
-int  metaSaveTableToDB(SMeta* pMeta, STbCfg* pTbCfg);
+int  metaSaveTableToDB(SMeta* pMeta, STbCfg* pTbCfg, STbDdlH* pHandle);
 int  metaRemoveTableFromDb(SMeta* pMeta, tb_uid_t uid);
 int  metaSaveSmaToDB(SMeta* pMeta, STSma* pTbCfg);
 int  metaRemoveSmaFromDb(SMeta* pMeta, int64_t indexUid);
diff --git a/source/dnode/vnode/src/inc/tsdb.h b/source/dnode/vnode/src/inc/tsdb.h
index a84776abfd..dddc170813 100644
--- a/source/dnode/vnode/src/inc/tsdb.h
+++ b/source/dnode/vnode/src/inc/tsdb.h
@@ -57,7 +57,6 @@ int32_t tsdbDropTSmaData(STsdb *pTsdb, int64_t indexUid);
 int32_t tsdbInsertRSmaData(STsdb *pTsdb, char *msg);
 void    tsdbCleanupReadHandle(tsdbReaderT queryHandle);
 int32_t tdScanAndConvertSubmitMsg(SSubmitReq *pMsg);
-
 typedef enum {
   TSDB_FILE_HEAD = 0,  // .head
   TSDB_FILE_DATA,      // .data
diff --git a/source/dnode/vnode/src/inc/tsdbSma.h b/source/dnode/vnode/src/inc/tsdbSma.h
new file mode 100644
index 0000000000..e20d2989b9
--- /dev/null
+++ b/source/dnode/vnode/src/inc/tsdbSma.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _TD_VNODE_TSDB_SMA_H_
+#define _TD_VNODE_TSDB_SMA_H_
+
+#include "os.h"
+#include "thash.h"
+#include "tmsg.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef int32_t (*__tb_ddl_fn_t)(void *ahandle, void **result, void *p1, void *p2);
+
+struct STbDdlH {
+  void         *ahandle;
+  void         *result;
+  __tb_ddl_fn_t fp;
+};
+
+typedef struct {
+  tb_uid_t  suid;
+  SArray   *tbUids;
+  SHashObj *uidHash;
+} STbUidStore;
+
+static FORCE_INLINE int32_t tsdbUidStoreInit(STbUidStore **pStore) {
+  ASSERT(*pStore == NULL);
+  *pStore = taosMemoryCalloc(1, sizeof(STbUidStore));
+  if (*pStore == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return TSDB_CODE_FAILED;
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t tsdbUidStorePut(STbUidStore *pStore, tb_uid_t suid, tb_uid_t *uid);
+void    tsdbUidStoreDestory(STbUidStore *pStore);
+void   *tsdbUidStoreFree(STbUidStore *pStore);
+
+int32_t tsdbRegisterRSma(STsdb *pTsdb, SMeta *pMeta, SVCreateTbReq *pReq);
+int32_t tsdbFetchTbUidList(void *pTsdb, void **result, void *suid, void *uid);
+int32_t tsdbUpdateTbUidList(STsdb *pTsdb, STbUidStore *pUidStore);
+int32_t tsdbTriggerRSma(STsdb *pTsdb, SMeta *pMeta, void *pMsg, int32_t inputType);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_TD_VNODE_TSDB_SMA_H_*/
\ No newline at end of file
diff --git a/source/dnode/vnode/src/inc/vnodeInt.h b/source/dnode/vnode/src/inc/vnodeInt.h
index 0027424829..0f354401bf 100644
--- a/source/dnode/vnode/src/inc/vnodeInt.h
+++ b/source/dnode/vnode/src/inc/vnodeInt.h
@@ -103,6 +103,8 @@ struct SVnode {
 
 #define TD_VID(PVNODE) (PVNODE)->config.vgId
 
+typedef struct STbDdlH STbDdlH;
+
 // sma
 void smaHandleRes(void *pVnode, int64_t smaId, const SArray *data);
 
@@ -116,6 +118,8 @@ void smaHandleRes(void *pVnode, int64_t smaId, const SArray *data);
 
 #include "vnodeSync.h"
 
+#include "tsdbSma.h"
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/dnode/vnode/src/meta/metaTDBImpl.c b/source/dnode/vnode/src/meta/metaTDBImpl.c
index 8389286596..d61d3346a2 100644
--- a/source/dnode/vnode/src/meta/metaTDBImpl.c
+++ b/source/dnode/vnode/src/meta/metaTDBImpl.c
@@ -250,7 +250,7 @@ void metaCloseDB(SMeta *pMeta) {
   }
 }
 
-int metaSaveTableToDB(SMeta *pMeta, STbCfg *pTbCfg) {
+int metaSaveTableToDB(SMeta *pMeta, STbCfg *pTbCfg, STbDdlH *pHandle) {
   tb_uid_t       uid;
   SMetaDB       *pMetaDb;
   void          *pKey;
@@ -349,6 +349,12 @@ int metaSaveTableToDB(SMeta *pMeta, STbCfg *pTbCfg) {
     if (ret < 0) {
       return -1;
     }
+    // child table handle for rsma
+    if (pHandle && pHandle->fp) {
+      if (((*pHandle->fp)(pHandle->ahandle, &pHandle->result, &ctbIdxKey.suid, &uid)) < 0) {
+        return -1;
+      };
+    }
   } else if (pTbCfg->type == META_NORMAL_TABLE) {
     pKey = &uid;
     kLen = sizeof(uid);
diff --git a/source/dnode/vnode/src/meta/metaTable.c b/source/dnode/vnode/src/meta/metaTable.c
index 7f06ba8855..7f8ec3a656 100644
--- a/source/dnode/vnode/src/meta/metaTable.c
+++ b/source/dnode/vnode/src/meta/metaTable.c
@@ -15,7 +15,7 @@
 
 #include "vnodeInt.h"
 
-int metaCreateTable(SMeta *pMeta, STbCfg *pTbCfg) {
+int metaCreateTable(SMeta *pMeta, STbCfg *pTbCfg, STbDdlH *pHandle) {
   // Validate the tbOptions
   // if (metaValidateTbCfg(pMeta, pTbCfg) < 0) {
   //   // TODO: handle error
@@ -24,7 +24,7 @@ int metaCreateTable(SMeta *pMeta, STbCfg *pTbCfg) {
 
   // TODO: add atomicity
 
-  if (metaSaveTableToDB(pMeta, pTbCfg) < 0) {
+  if (metaSaveTableToDB(pMeta, pTbCfg, pHandle) < 0) {
     // TODO: handle error
     return -1;
   }
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 434c5bc5bb..fdb43a761b 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -411,8 +411,10 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
 
   SMqDataBlkRsp rsp = {0};
   rsp.reqOffset = pReq->currentOffset;
+  rsp.withSchema = pExec->withSchema;
   rsp.blockData = taosArrayInit(0, sizeof(void*));
   rsp.blockDataLen = taosArrayInit(0, sizeof(int32_t));
+  rsp.blockSchema = taosArrayInit(0, sizeof(void*));
 
   while (1) {
     consumerEpoch = atomic_load_32(&pExec->epoch);
@@ -512,6 +514,12 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
           ASSERT(actualLen <= dataStrLen);
           taosArrayPush(rsp.blockDataLen, &actualLen);
           taosArrayPush(rsp.blockData, &buf);
+
+          if (pExec->withSchema) {
+            SSchemaWrapper* pSW = tCloneSSchemaWrapper(pExec->pExecReader[workerId]->pSchemaWrapper);
+            taosArrayPush(rsp.blockSchema, &pSW);
+          }
+
           rsp.blockNum++;
         }
         // db subscribe
@@ -540,6 +548,10 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
           ASSERT(actualLen <= dataStrLen);
           taosArrayPush(rsp.blockDataLen, &actualLen);
           taosArrayPush(rsp.blockData, &buf);
+
+          SSchemaWrapper* pSW = tCloneSSchemaWrapper(pExec->pExecReader[workerId]->pSchemaWrapper);
+          taosArrayPush(rsp.blockSchema, &pSW);
+
           rsp.blockNum++;
         }
       } else {
@@ -586,6 +598,8 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
   // TODO destroy
   taosArrayDestroy(rsp.blockData);
   taosArrayDestroy(rsp.blockDataLen);
+  taosArrayDestroyP(rsp.blockSchema, (FDelete)tDeleteSSchemaWrapper);
+
   return 0;
 }
 
@@ -827,12 +841,16 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen) {
     pExec->pWalReader = walOpenReadHandle(pTq->pVnode->pWal);
     for (int32_t i = 0; i < 5; i++) {
       pExec->pExecReader[i] = tqInitSubmitMsgScanner(pTq->pVnode->pMeta);
-      SReadHandle handle = {
-          .reader = pExec->pExecReader[i],
-          .meta = pTq->pVnode->pMeta,
-      };
-      pExec->task[i] = qCreateStreamExecTaskInfo(pExec->qmsg, &handle);
-      ASSERT(pExec->task[i]);
+      if (pExec->subType == TOPIC_SUB_TYPE__TABLE) {
+        SReadHandle handle = {
+            .reader = pExec->pExecReader[i],
+            .meta = pTq->pVnode->pMeta,
+        };
+        pExec->task[i] = qCreateStreamExecTaskInfo(pExec->qmsg, &handle);
+        ASSERT(pExec->task[i]);
+      } else {
+        pExec->task[i] = NULL;
+      }
     }
     taosHashPut(pTq->execs, req.subKey, strlen(req.subKey), pExec, sizeof(STqExec));
     return 0;
diff --git a/source/dnode/vnode/src/tq/tqRead.c b/source/dnode/vnode/src/tq/tqRead.c
index eb45577e0a..ef7e346867 100644
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@@ -65,7 +65,9 @@ bool tqNextDataBlock(STqReadHandle* pHandle) {
 
     /*pHandle->pBlock->uid = htobe64(pHandle->pBlock->uid);*/
     /*if (pHandle->tbUid == pHandle->pBlock->uid) {*/
-    ASSERT(pHandle->tbIdHash);
+    if (pHandle->tbIdHash == NULL) {
+      return true;
+    }
     void* ret = taosHashGet(pHandle->tbIdHash, &pHandle->pBlock->uid, sizeof(int64_t));
     if (ret != NULL) {
       /*printf("retrieve one tb %ld\n", pHandle->pBlock->uid);*/
@@ -107,26 +109,15 @@ int32_t tqRetrieveDataBlock(SArray** ppCols, STqReadHandle* pHandle, uint64_t* p
   *pNumOfRows = pHandle->pBlock->numOfRows;
   int32_t colNumNeed = taosArrayGetSize(pHandle->pColIdList);
 
-  if (colNumNeed > pSchemaWrapper->nCols) {
-    colNumNeed = pSchemaWrapper->nCols;
-  }
+  if (colNumNeed == 0) {
+    *ppCols = taosArrayInit(pSchemaWrapper->nCols, sizeof(SColumnInfoData));
+    if (*ppCols == NULL) {
+      return -1;
+    }
 
-  *ppCols = taosArrayInit(colNumNeed, sizeof(SColumnInfoData));
-  if (*ppCols == NULL) {
-    return -1;
-  }
-
-  int32_t colMeta = 0;
-  int32_t colNeed = 0;
-  while (colMeta < pSchemaWrapper->nCols && colNeed < colNumNeed) {
-    SSchema* pColSchema = &pSchemaWrapper->pSchema[colMeta];
-    col_id_t colIdSchema = pColSchema->colId;
-    col_id_t colIdNeed = *(col_id_t*)taosArrayGet(pHandle->pColIdList, colNeed);
-    if (colIdSchema < colIdNeed) {
-      colMeta++;
-    } else if (colIdSchema > colIdNeed) {
-      colNeed++;
-    } else {
+    int32_t colMeta = 0;
+    while (colMeta < pSchemaWrapper->nCols) {
+      SSchema*        pColSchema = &pSchemaWrapper->pSchema[colMeta];
       SColumnInfoData colInfo = {0};
       colInfo.info.bytes = pColSchema->bytes;
       colInfo.info.colId = pColSchema->colId;
@@ -137,7 +128,40 @@ int32_t tqRetrieveDataBlock(SArray** ppCols, STqReadHandle* pHandle, uint64_t* p
       }
       taosArrayPush(*ppCols, &colInfo);
       colMeta++;
-      colNeed++;
+    }
+  } else {
+    if (colNumNeed > pSchemaWrapper->nCols) {
+      colNumNeed = pSchemaWrapper->nCols;
+    }
+
+    *ppCols = taosArrayInit(colNumNeed, sizeof(SColumnInfoData));
+    if (*ppCols == NULL) {
+      return -1;
+    }
+
+    int32_t colMeta = 0;
+    int32_t colNeed = 0;
+    while (colMeta < pSchemaWrapper->nCols && colNeed < colNumNeed) {
+      SSchema* pColSchema = &pSchemaWrapper->pSchema[colMeta];
+      col_id_t colIdSchema = pColSchema->colId;
+      col_id_t colIdNeed = *(col_id_t*)taosArrayGet(pHandle->pColIdList, colNeed);
+      if (colIdSchema < colIdNeed) {
+        colMeta++;
+      } else if (colIdSchema > colIdNeed) {
+        colNeed++;
+      } else {
+        SColumnInfoData colInfo = {0};
+        colInfo.info.bytes = pColSchema->bytes;
+        colInfo.info.colId = pColSchema->colId;
+        colInfo.info.type = pColSchema->type;
+
+        if (colInfoDataEnsureCapacity(&colInfo, 0, *pNumOfRows) < 0) {
+          goto FAIL;
+        }
+        taosArrayPush(*ppCols, &colInfo);
+        colMeta++;
+        colNeed++;
+      }
     }
   }
 
diff --git a/source/dnode/vnode/src/tsdb/tsdbMain.c b/source/dnode/vnode/src/tsdb/tsdbMain.c
index 2753579e9e..8691920c8f 100644
--- a/source/dnode/vnode/src/tsdb/tsdbMain.c
+++ b/source/dnode/vnode/src/tsdb/tsdbMain.c
@@ -81,8 +81,8 @@ static STsdb *tsdbNew(const char *path, SVnode *pVnode, const STsdbCfg *pTsdbCfg
 
 static void tsdbFree(STsdb *pTsdb) {
   if (pTsdb) {
-    // tsdbFreeSmaEnv(REPO_TSMA_ENV(pTsdb));
-    // tsdbFreeSmaEnv(REPO_RSMA_ENV(pTsdb));
+    tsdbFreeSmaEnv(REPO_TSMA_ENV(pTsdb));
+    tsdbFreeSmaEnv(REPO_RSMA_ENV(pTsdb));
     tsdbFreeFS(pTsdb->fs);
     taosMemoryFreeClear(pTsdb->path);
     taosMemoryFree(pTsdb);
diff --git a/source/dnode/vnode/src/tsdb/tsdbRead.c b/source/dnode/vnode/src/tsdb/tsdbRead.c
index f70a4478b3..483475601b 100644
--- a/source/dnode/vnode/src/tsdb/tsdbRead.c
+++ b/source/dnode/vnode/src/tsdb/tsdbRead.c
@@ -3223,8 +3223,13 @@ void tsdbRetrieveDataBlockInfo(tsdbReaderT* pTsdbReadHandle, SDataBlockInfo* pDa
   tsdbDebug("data block generated, uid:%" PRIu64 " numOfRows:%d, tsrange:%" PRId64 " - %" PRId64 " %s", uid, cur->rows,
             cur->win.skey, cur->win.ekey, pHandle->idStr);
 
-  //  pDataBlockInfo->uid    = uid; // block Id may be over write by assigning uid fro this data block. Do NOT assign
-  //  the table uid
+  pDataBlockInfo->uid    = uid;
+
+#if 0
+  // for multi-group data query processing test purpose
+  pDataBlockInfo->groupId = uid;
+#endif
+
   pDataBlockInfo->rows = cur->rows;
   pDataBlockInfo->window = cur->win;
   pDataBlockInfo->numOfCols = (int32_t)(QH_GET_NUM_OF_COLS(pHandle));
@@ -3631,6 +3636,8 @@ int32_t tsdbQuerySTableByTagCond(void* pMeta, uint64_t uid, TSKEY skey, const ch
     tsdbError("%p failed to get stable, uid:%" PRIu64 ", TID:0x%" PRIx64 " QID:0x%" PRIx64, pMeta, uid, taskId, reqId);
     terrno = TSDB_CODE_TDB_INVALID_TABLE_ID;
     goto _error;
+  } else {
+    tsdbDebug("%p succeed to get stable, uid:%" PRIu64 ", TID:0x%" PRIx64 " QID:0x%" PRIx64, pMeta, uid, taskId, reqId);
   }
 
   if (pTbCfg->type != META_SUPER_TABLE) {
diff --git a/source/dnode/vnode/src/tsdb/tsdbSma.c b/source/dnode/vnode/src/tsdb/tsdbSma.c
index bc9fe46c0f..9143e8ed12 100644
--- a/source/dnode/vnode/src/tsdb/tsdbSma.c
+++ b/source/dnode/vnode/src/tsdb/tsdbSma.c
@@ -33,6 +33,8 @@ static const char *TSDB_SMA_DNAME[] = {
 
 #define SMA_TEST_INDEX_NAME "smaTestIndexName"  // TODO: just for test
 #define SMA_TEST_INDEX_UID  2000000001          // TODO: just for test
+
+typedef struct SRSmaInfo SRSmaInfo;
 typedef enum {
   SMA_STORAGE_LEVEL_TSDB = 0,     // use days of self-defined  e.g. vnode${N}/tsdb/tsma/sma_index_uid/v2f200.tsma
   SMA_STORAGE_LEVEL_DFILESET = 1  // use days of TS data       e.g. vnode${N}/tsdb/tsma/sma_index_uid/v2f1906.tsma
@@ -46,6 +48,7 @@ typedef struct SPoolMem {
 
 struct SSmaEnv {
   TdThreadRwlock lock;
+  int8_t         type;
   TXN            txn;
   SPoolMem      *pPool;
   SDiskID        did;
@@ -55,6 +58,7 @@ struct SSmaEnv {
 };
 
 #define SMA_ENV_LOCK(env)       ((env)->lock)
+#define SMA_ENV_TYPE(env)       ((env)->type)
 #define SMA_ENV_DID(env)        ((env)->did)
 #define SMA_ENV_ENV(env)        ((env)->dbEnv)
 #define SMA_ENV_PATH(env)       ((env)->path)
@@ -91,16 +95,45 @@ typedef struct {
    *    - TSDB_SMA_STAT_EXPIRED: 1) If sma calculation of history TS data is not finished; 2) Or if the TSDB is open,
    * without information about its previous state.
    *    - TSDB_SMA_STAT_DROPPED: 1)sma dropped
+   * N.B. only applicable to tsma
    */
   int8_t    state;           // ETsdbSmaStat
   SHashObj *expiredWindows;  // key: skey of time window, value: N/A
   STSma    *pSma;            // cache schema
 } SSmaStatItem;
 
+#define RSMA_MAX_LEVEL           2
+#define RSMA_TASK_INFO_HASH_SLOT 8
+struct SRSmaInfo {
+  void *taskInfo[RSMA_MAX_LEVEL];  // qTaskInfo_t
+};
+
 struct SSmaStat {
-  SHashObj *smaStatItems;  // key: indexUid, value: SSmaStatItem
+  union {
+    SHashObj *smaStatItems;  // key: indexUid, value: SSmaStatItem for tsma
+    SHashObj *rsmaInfoHash;  // key: stbUid, value: SRSmaInfo;
+  };
   T_REF_DECLARE()
 };
+#define SMA_STAT_ITEMS(s)     ((s)->smaStatItems)
+#define SMA_STAT_INFO_HASH(s) ((s)->rsmaInfoHash)
+
+static FORCE_INLINE void tsdbFreeTaskHandle(qTaskInfo_t *taskHandle) {
+  // Note: free/kill may in RC
+  qTaskInfo_t otaskHandle = atomic_load_ptr(taskHandle);
+  if (otaskHandle && atomic_val_compare_exchange_ptr(taskHandle, otaskHandle, NULL)) {
+    qDestroyTask(otaskHandle);
+  }
+}
+
+static FORCE_INLINE void *tsdbFreeRSmaInfo(SRSmaInfo *pInfo) {
+  for (int32_t i = 0; i < RSMA_MAX_LEVEL; ++i) {
+    if (pInfo->taskInfo[i]) {
+      tsdbFreeTaskHandle(pInfo->taskInfo[i]);
+    }
+  }
+  return NULL;
+}
 
 // declaration of static functions
 
@@ -108,11 +141,11 @@ struct SSmaStat {
 static int32_t  tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t version);
 static int32_t  tsdbSetExpiredWindow(STsdb *pTsdb, SHashObj *pItemsHash, int64_t indexUid, int64_t winSKey,
                                      int64_t version);
-static int32_t  tsdbInitSmaStat(SSmaStat **pSmaStat);
+static int32_t  tsdbInitSmaStat(SSmaStat **pSmaStat, int8_t smaType);
 static void    *tsdbFreeSmaStatItem(SSmaStatItem *pSmaStatItem);
-static int32_t  tsdbDestroySmaState(SSmaStat *pSmaStat);
-static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, const char *path, SDiskID did);
-static int32_t  tsdbInitSmaEnv(STsdb *pTsdb, const char *path, SDiskID did, SSmaEnv **pEnv);
+static int32_t  tsdbDestroySmaState(SSmaStat *pSmaStat, int8_t smaType);
+static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did);
+static int32_t  tsdbInitSmaEnv(STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did, SSmaEnv **pEnv);
 static int32_t  tsdbResetExpiredWindow(STsdb *pTsdb, SSmaStat *pStat, int64_t indexUid, TSKEY skey);
 static int32_t  tsdbRefSmaStat(STsdb *pTsdb, SSmaStat *pStat);
 static int32_t  tsdbUnRefSmaStat(STsdb *pTsdb, SSmaStat *pStat);
@@ -139,6 +172,7 @@ static void    tsdbGetSmaDir(int32_t vgId, ETsdbSmaType smaType, char dirName[])
 static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char *msg);
 static int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, const char *msg);
 
+static FORCE_INLINE int32_t tsdbUpdateTbUidListImpl(STsdb *pTsdb, tb_uid_t *suid, SArray *tbUids);
 // mgmt interface
 static int32_t tsdbDropTSmaDataImpl(STsdb *pTsdb, int64_t indexUid);
 
@@ -229,7 +263,7 @@ static void *poolMalloc(void *arg, size_t size) {
   SPoolMem *pMem;
 
   pMem = (SPoolMem *)tdbOsMalloc(sizeof(*pMem) + size);
-  if (pMem == NULL) {
+  if (!pMem) {
     assert(0);
   }
 
@@ -317,15 +351,17 @@ static void tsdbGetSmaDir(int32_t vgId, ETsdbSmaType smaType, char dirName[]) {
   snprintf(dirName, TSDB_FILENAME_LEN, "vnode%svnode%d%s%s", TD_DIRSEP, vgId, TD_DIRSEP, TSDB_SMA_DNAME[smaType]);
 }
 
-static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, const char *path, SDiskID did) {
+static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did) {
   SSmaEnv *pEnv = NULL;
 
   pEnv = (SSmaEnv *)taosMemoryCalloc(1, sizeof(SSmaEnv));
-  if (pEnv == NULL) {
+  if (!pEnv) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return NULL;
   }
 
+  SMA_ENV_TYPE(pEnv) = smaType;
+
   int code = taosThreadRwlockInit(&(pEnv->lock), NULL);
   if (code) {
     terrno = TAOS_SYSTEM_ERROR(code);
@@ -334,15 +370,15 @@ static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, const char *path, SDiskID did)
   }
 
   ASSERT(path && (strlen(path) > 0));
-  pEnv->path = strdup(path);
-  if (pEnv->path == NULL) {
+  SMA_ENV_PATH(pEnv) = strdup(path);
+  if (!SMA_ENV_PATH(pEnv)) {
     tsdbFreeSmaEnv(pEnv);
     return NULL;
   }
 
-  pEnv->did = did;
+  SMA_ENV_DID(pEnv) = did;
 
-  if (tsdbInitSmaStat(&pEnv->pStat) != TSDB_CODE_SUCCESS) {
+  if (tsdbInitSmaStat(&SMA_ENV_STAT(pEnv), smaType) != TSDB_CODE_SUCCESS) {
     tsdbFreeSmaEnv(pEnv);
     return NULL;
   }
@@ -354,7 +390,7 @@ static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, const char *path, SDiskID did)
     return NULL;
   }
 
-  if ((pEnv->pPool = openPool()) == NULL) {
+  if (!(pEnv->pPool = openPool())) {
     tsdbFreeSmaEnv(pEnv);
     return NULL;
   }
@@ -362,14 +398,14 @@ static SSmaEnv *tsdbNewSmaEnv(const STsdb *pTsdb, const char *path, SDiskID did)
   return pEnv;
 }
 
-static int32_t tsdbInitSmaEnv(STsdb *pTsdb, const char *path, SDiskID did, SSmaEnv **pEnv) {
+static int32_t tsdbInitSmaEnv(STsdb *pTsdb, int8_t smaType, const char *path, SDiskID did, SSmaEnv **pEnv) {
   if (!pEnv) {
     terrno = TSDB_CODE_INVALID_PTR;
     return TSDB_CODE_FAILED;
   }
 
-  if (*pEnv == NULL) {
-    if ((*pEnv = tsdbNewSmaEnv(pTsdb, path, did)) == NULL) {
+  if (!(*pEnv)) {
+    if (!(*pEnv = tsdbNewSmaEnv(pTsdb, smaType, path, did))) {
       return TSDB_CODE_FAILED;
     }
   }
@@ -385,7 +421,7 @@ static int32_t tsdbInitSmaEnv(STsdb *pTsdb, const char *path, SDiskID did, SSmaE
  */
 void tsdbDestroySmaEnv(SSmaEnv *pSmaEnv) {
   if (pSmaEnv) {
-    tsdbDestroySmaState(pSmaEnv->pStat);
+    tsdbDestroySmaState(pSmaEnv->pStat, SMA_ENV_TYPE(pSmaEnv));
     taosMemoryFreeClear(pSmaEnv->pStat);
     taosMemoryFreeClear(pSmaEnv->path);
     taosThreadRwlockDestroy(&(pSmaEnv->lock));
@@ -401,7 +437,7 @@ void *tsdbFreeSmaEnv(SSmaEnv *pSmaEnv) {
 }
 
 static int32_t tsdbRefSmaStat(STsdb *pTsdb, SSmaStat *pStat) {
-  if (pStat == NULL) return 0;
+  if (!pStat) return 0;
 
   int ref = T_REF_INC(pStat);
   tsdbDebug("vgId:%d ref sma stat:%p, val:%d", REPO_ID(pTsdb), pStat, ref);
@@ -409,17 +445,17 @@ static int32_t tsdbRefSmaStat(STsdb *pTsdb, SSmaStat *pStat) {
 }
 
 static int32_t tsdbUnRefSmaStat(STsdb *pTsdb, SSmaStat *pStat) {
-  if (pStat == NULL) return 0;
+  if (!pStat) return 0;
 
   int ref = T_REF_DEC(pStat);
   tsdbDebug("vgId:%d unref sma stat:%p, val:%d", REPO_ID(pTsdb), pStat, ref);
   return 0;
 }
 
-static int32_t tsdbInitSmaStat(SSmaStat **pSmaStat) {
+static int32_t tsdbInitSmaStat(SSmaStat **pSmaStat, int8_t smaType) {
   ASSERT(pSmaStat != NULL);
 
-  if (*pSmaStat != NULL) {  // no lock
+  if (*pSmaStat) {  // no lock
     return TSDB_CODE_SUCCESS;
   }
 
@@ -428,19 +464,31 @@ static int32_t tsdbInitSmaStat(SSmaStat **pSmaStat) {
    *  2. Currently, there is mutex lock when init SSmaEnv, thus no need add lock on SSmaStat, and please add lock if
    * tsdbInitSmaStat invoked in other multithread environment later.
    */
-  if (*pSmaStat == NULL) {
+  if (!(*pSmaStat)) {
     *pSmaStat = (SSmaStat *)taosMemoryCalloc(1, sizeof(SSmaStat));
-    if (*pSmaStat == NULL) {
+    if (!(*pSmaStat)) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       return TSDB_CODE_FAILED;
     }
 
-    (*pSmaStat)->smaStatItems =
-        taosHashInit(SMA_STATE_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
+    if (smaType == TSDB_SMA_TYPE_ROLLUP) {
+      SMA_STAT_INFO_HASH(*pSmaStat) = taosHashInit(
+          RSMA_TASK_INFO_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, HASH_ENTRY_LOCK);
 
-    if ((*pSmaStat)->smaStatItems == NULL) {
-      taosMemoryFreeClear(*pSmaStat);
-      return TSDB_CODE_FAILED;
+      if (!SMA_STAT_INFO_HASH(*pSmaStat)) {
+        taosMemoryFreeClear(*pSmaStat);
+        return TSDB_CODE_FAILED;
+      }
+    } else if (smaType == TSDB_SMA_TYPE_TIME_RANGE) {
+      SMA_STAT_ITEMS(*pSmaStat) =
+          taosHashInit(SMA_STATE_HASH_SLOT, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_ENTRY_LOCK);
+
+      if (!SMA_STAT_ITEMS(*pSmaStat)) {
+        taosMemoryFreeClear(*pSmaStat);
+        return TSDB_CODE_FAILED;
+      }
+    } else {
+      ASSERT(0);
     }
   }
   return TSDB_CODE_SUCCESS;
@@ -462,7 +510,7 @@ static SSmaStatItem *tsdbNewSmaStatItem(int8_t state) {
 }
 
 static void *tsdbFreeSmaStatItem(SSmaStatItem *pSmaStatItem) {
-  if (pSmaStatItem != NULL) {
+  if (pSmaStatItem) {
     tdDestroyTSma(pSmaStatItem->pSma);
     taosMemoryFreeClear(pSmaStatItem->pSma);
     taosHashCleanup(pSmaStatItem->expiredWindows);
@@ -477,16 +525,28 @@ static void *tsdbFreeSmaStatItem(SSmaStatItem *pSmaStatItem) {
  * @param pSmaStat
  * @return int32_t
  */
-int32_t tsdbDestroySmaState(SSmaStat *pSmaStat) {
+int32_t tsdbDestroySmaState(SSmaStat *pSmaStat, int8_t smaType) {
   if (pSmaStat) {
     // TODO: use taosHashSetFreeFp when taosHashSetFreeFp is ready.
-    void *item = taosHashIterate(pSmaStat->smaStatItems, NULL);
-    while (item != NULL) {
-      SSmaStatItem *pItem = *(SSmaStatItem **)item;
-      tsdbFreeSmaStatItem(pItem);
-      item = taosHashIterate(pSmaStat->smaStatItems, item);
+    if (smaType == TSDB_SMA_TYPE_TIME_RANGE) {
+      void *item = taosHashIterate(SMA_STAT_ITEMS(pSmaStat), NULL);
+      while (item) {
+        SSmaStatItem *pItem = *(SSmaStatItem **)item;
+        tsdbFreeSmaStatItem(pItem);
+        item = taosHashIterate(SMA_STAT_ITEMS(pSmaStat), item);
+      }
+      taosHashCleanup(SMA_STAT_ITEMS(pSmaStat));
+    } else if (smaType == TSDB_SMA_TYPE_ROLLUP) {
+      void *infoHash = taosHashIterate(SMA_STAT_INFO_HASH(pSmaStat), NULL);
+      while (infoHash) {
+        SRSmaInfo *pInfoHash = *(SRSmaInfo **)infoHash;
+        tsdbFreeRSmaInfo(pInfoHash);
+        infoHash = taosHashIterate(SMA_STAT_INFO_HASH(pSmaStat), infoHash);
+      }
+      taosHashCleanup(SMA_STAT_INFO_HASH(pSmaStat));
+    } else {
+      ASSERT(0);
     }
-    taosHashCleanup(pSmaStat->smaStatItems);
   }
   return TSDB_CODE_SUCCESS;
 }
@@ -497,12 +557,12 @@ static int32_t tsdbCheckAndInitSmaEnv(STsdb *pTsdb, int8_t smaType) {
   // return if already init
   switch (smaType) {
     case TSDB_SMA_TYPE_TIME_RANGE:
-      if ((pEnv = (SSmaEnv *)atomic_load_ptr(&REPO_TSMA_ENV(pTsdb))) != NULL) {
+      if ((pEnv = (SSmaEnv *)atomic_load_ptr(&REPO_TSMA_ENV(pTsdb)))) {
         return TSDB_CODE_SUCCESS;
       }
       break;
     case TSDB_SMA_TYPE_ROLLUP:
-      if ((pEnv = (SSmaEnv *)atomic_load_ptr(&REPO_RSMA_ENV(pTsdb))) != NULL) {
+      if ((pEnv = (SSmaEnv *)atomic_load_ptr(&REPO_RSMA_ENV(pTsdb)))) {
         return TSDB_CODE_SUCCESS;
       }
       break;
@@ -515,7 +575,7 @@ static int32_t tsdbCheckAndInitSmaEnv(STsdb *pTsdb, int8_t smaType) {
   tsdbLockRepo(pTsdb);
   pEnv = (smaType == TSDB_SMA_TYPE_TIME_RANGE) ? atomic_load_ptr(&REPO_TSMA_ENV(pTsdb))
                                                : atomic_load_ptr(&REPO_RSMA_ENV(pTsdb));
-  if (pEnv == NULL) {
+  if (!pEnv) {
     char rname[TSDB_FILENAME_LEN] = {0};
 
     SDiskID did = {0};
@@ -531,7 +591,7 @@ static int32_t tsdbCheckAndInitSmaEnv(STsdb *pTsdb, int8_t smaType) {
       return TSDB_CODE_FAILED;
     }
 
-    if (tsdbInitSmaEnv(pTsdb, rname, did, &pEnv) != TSDB_CODE_SUCCESS) {
+    if (tsdbInitSmaEnv(pTsdb, smaType, rname, did, &pEnv) != TSDB_CODE_SUCCESS) {
       tsdbUnlockRepo(pTsdb);
       return TSDB_CODE_FAILED;
     }
@@ -547,10 +607,10 @@ static int32_t tsdbCheckAndInitSmaEnv(STsdb *pTsdb, int8_t smaType) {
 static int32_t tsdbSetExpiredWindow(STsdb *pTsdb, SHashObj *pItemsHash, int64_t indexUid, int64_t winSKey,
                                     int64_t version) {
   SSmaStatItem *pItem = taosHashGet(pItemsHash, &indexUid, sizeof(indexUid));
-  if (pItem == NULL) {
+  if (!pItem) {
     // TODO: use TSDB_SMA_STAT_EXPIRED and update by stream computing later
     pItem = tsdbNewSmaStatItem(TSDB_SMA_STAT_OK);  // TODO use the real state
-    if (pItem == NULL) {
+    if (!pItem) {
       // Response to stream computing: OOM
       // For query, if the indexUid not found, the TSDB should tell query module to query raw TS data.
       return TSDB_CODE_FAILED;
@@ -558,7 +618,7 @@ static int32_t tsdbSetExpiredWindow(STsdb *pTsdb, SHashObj *pItemsHash, int64_t
 
     // cache smaMeta
     STSma *pSma = metaGetSmaInfoByIndex(REPO_META(pTsdb), indexUid, true);
-    if (pSma == NULL) {
+    if (!pSma) {
       terrno = TSDB_CODE_TDB_NO_SMA_INDEX_IN_META;
       taosHashCleanup(pItem->expiredWindows);
       taosMemoryFree(pItem);
@@ -574,7 +634,7 @@ static int32_t tsdbSetExpiredWindow(STsdb *pTsdb, SHashObj *pItemsHash, int64_t
       taosMemoryFree(pItem);
       return TSDB_CODE_FAILED;
     }
-  } else if ((pItem = *(SSmaStatItem **)pItem) == NULL) {
+  } else if (!(pItem = *(SSmaStatItem **)pItem)) {
     terrno = TSDB_CODE_INVALID_PTR;
     return TSDB_CODE_FAILED;
   }
@@ -634,7 +694,7 @@ int32_t tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t vers
   SSmaStat *pStat = SMA_ENV_STAT(pEnv);
   SHashObj *pItemsHash = SMA_ENV_STAT_ITEMS(pEnv);
 
-  TASSERT(pEnv != NULL && pStat != NULL && pItemsHash != NULL);
+  TASSERT(pEnv && pStat && pItemsHash);
 
   // basic procedure
   // TODO: optimization
@@ -651,7 +711,7 @@ int32_t tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t vers
 
   while (true) {
     tGetSubmitMsgNext(&msgIter, &pBlock);
-    if (pBlock == NULL) break;
+    if (!pBlock) break;
 
     STSmaWrapper *pSW = NULL;
     STSma        *pTSma = NULL;
@@ -664,7 +724,7 @@ int32_t tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t vers
 
     while (true) {
       STSRow *row = tGetSubmitBlkNext(&blkIter);
-      if (row == NULL) {
+      if (!row) {
         tdFreeTSmaWrapper(pSW);
         break;
       }
@@ -672,10 +732,10 @@ int32_t tsdbUpdateExpiredWindowImpl(STsdb *pTsdb, SSubmitReq *pMsg, int64_t vers
         if (pSW) {
           pSW = tdFreeTSmaWrapper(pSW);
         }
-        if ((pSW = metaGetSmaInfoByTable(REPO_META(pTsdb), pBlock->suid)) == NULL) {
+        if (!(pSW = metaGetSmaInfoByTable(REPO_META(pTsdb), pBlock->suid))) {
           break;
         }
-        if ((pSW->number) <= 0 || (pSW->tSma == NULL)) {
+        if ((pSW->number) <= 0 || !pSW->tSma) {
           pSW = tdFreeTSmaWrapper(pSW);
           break;
         }
@@ -721,10 +781,10 @@ static int32_t tsdbResetExpiredWindow(STsdb *pTsdb, SSmaStat *pStat, int64_t ind
 
   tsdbRefSmaStat(pTsdb, pStat);
 
-  if (pStat && pStat->smaStatItems) {
-    pItem = taosHashGet(pStat->smaStatItems, &indexUid, sizeof(indexUid));
+  if (pStat && SMA_STAT_ITEMS(pStat)) {
+    pItem = taosHashGet(SMA_STAT_ITEMS(pStat), &indexUid, sizeof(indexUid));
   }
-  if ((pItem != NULL) && ((pItem = *(SSmaStatItem **)pItem) != NULL)) {
+  if ((pItem) && ((pItem = *(SSmaStatItem **)pItem))) {
     // pItem resides in hash buffer all the time unless drop sma index
     // TODO: multithread protect
     if (taosHashRemove(pItem->expiredWindows, &skey, sizeof(TSKEY)) != 0) {
@@ -934,7 +994,7 @@ static void tsdbDestroyTSmaWriteH(STSmaWriteH *pSmaH) {
 
 static int32_t tsdbSetTSmaDataFile(STSmaWriteH *pSmaH, int64_t indexUid, int32_t fid) {
   STsdb *pTsdb = pSmaH->pTsdb;
-  ASSERT(pSmaH->dFile.path == NULL && pSmaH->dFile.pDB == NULL);
+  ASSERT(!pSmaH->dFile.path && !pSmaH->dFile.pDB);
 
   pSmaH->dFile.fid = fid;
   char tSmaFile[TSDB_FILENAME_LEN] = {0};
@@ -1004,6 +1064,8 @@ static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char
   STsdbCfg     *pCfg = REPO_CFG(pTsdb);
   const SArray *pDataBlocks = (const SArray *)msg;
 
+  // TODO: destroy SSDataBlocks(msg)
+
   // For super table aggregation, the sma data is stored in vgroup calculated from the hash value of stable name. Thus
   // the sma data would arrive ahead of the update-expired-window msg.
   if (tsdbCheckAndInitSmaEnv(pTsdb, TSDB_SMA_TYPE_TIME_RANGE) != TSDB_CODE_SUCCESS) {
@@ -1011,7 +1073,7 @@ static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char
     return TSDB_CODE_FAILED;
   }
 
-  if (pDataBlocks == NULL) {
+  if (!pDataBlocks) {
     terrno = TSDB_CODE_INVALID_PTR;
     tsdbWarn("vgId:%d insert tSma data failed since pDataBlocks is NULL", REPO_ID(pTsdb));
     return terrno;
@@ -1029,11 +1091,11 @@ static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char
 
   tsdbRefSmaStat(pTsdb, pStat);
 
-  if (pStat && pStat->smaStatItems) {
-    pItem = taosHashGet(pStat->smaStatItems, &indexUid, sizeof(indexUid));
+  if (pStat && SMA_STAT_ITEMS(pStat)) {
+    pItem = taosHashGet(SMA_STAT_ITEMS(pStat), &indexUid, sizeof(indexUid));
   }
 
-  if ((pItem == NULL) || ((pItem = *(SSmaStatItem **)pItem) == NULL) || tsdbSmaStatIsDropped(pItem)) {
+  if (!pItem || !(pItem = *(SSmaStatItem **)pItem) || tsdbSmaStatIsDropped(pItem)) {
     terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
     tsdbUnRefSmaStat(pTsdb, pStat);
     return TSDB_CODE_FAILED;
@@ -1061,9 +1123,8 @@ static int32_t tsdbInsertTSmaDataImpl(STsdb *pTsdb, int64_t indexUid, const char
   int32_t storageLevel = tsdbGetSmaStorageLevel(pSma->interval, pSma->intervalUnit);
   int32_t daysPerFile = tsdbGetTSmaDays(pTsdb, tSmaH.interval, storageLevel);
 
-  // key: skey + groupId
-  char    smaKey[SMA_KEY_LEN] = {0};
-  char    dataBuf[512] = {0};
+  char    smaKey[SMA_KEY_LEN] = {0};  // key: skey + groupId
+  char    dataBuf[512] = {0};         // val: aggr data // TODO: handle 512 buffer?
   void   *pDataBuf = NULL;
   int32_t sz = taosArrayGetSize(pDataBlocks);
   for (int32_t i = 0; i < sz; ++i) {
@@ -1228,7 +1289,7 @@ static int32_t tsdbDropTSmaDataImpl(STsdb *pTsdb, int64_t indexUid) {
     tsdbDebug("vgId:%d drop tSma local cache for %" PRIi64, REPO_ID(pTsdb), indexUid);
 
     SSmaStatItem *pItem = taosHashGet(SMA_ENV_STAT_ITEMS(pEnv), &indexUid, sizeof(indexUid));
-    if ((pItem != NULL) || ((pItem = *(SSmaStatItem **)pItem) != NULL)) {
+    if ((pItem) || ((pItem = *(SSmaStatItem **)pItem))) {
       if (tsdbSmaStatIsDropped(pItem)) {
         tsdbDebug("vgId:%d tSma stat is already dropped for %" PRIi64, REPO_ID(pTsdb), indexUid);
         return TSDB_CODE_TDB_INVALID_ACTION;  // TODO: duplicate drop msg would be intercepted by mnode
@@ -1284,19 +1345,13 @@ static int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, const char *msg) {
   SSmaEnv      *pEnv = atomic_load_ptr(&REPO_RSMA_ENV(pTsdb));
   int64_t       indexUid = SMA_TEST_INDEX_UID;
 
-  if (pEnv == NULL) {
+  if (!pEnv) {
     terrno = TSDB_CODE_INVALID_PTR;
     tsdbWarn("vgId:%d insert rSma data failed since pTSmaEnv is NULL", REPO_ID(pTsdb));
     return terrno;
   }
 
-  if (pEnv == NULL) {
-    terrno = TSDB_CODE_INVALID_PTR;
-    tsdbWarn("vgId:%d insert rSma data failed since pTSmaEnv is NULL", REPO_ID(pTsdb));
-    return terrno;
-  }
-
-  if (pDataBlocks == NULL) {
+  if (!pDataBlocks) {
     terrno = TSDB_CODE_INVALID_PTR;
     tsdbWarn("vgId:%d insert rSma data failed since pDataBlocks is NULL", REPO_ID(pTsdb));
     return terrno;
@@ -1313,11 +1368,11 @@ static int32_t tsdbInsertRSmaDataImpl(STsdb *pTsdb, const char *msg) {
 
   tsdbRefSmaStat(pTsdb, pStat);
 
-  if (pStat && pStat->smaStatItems) {
-    pItem = taosHashGet(pStat->smaStatItems, &indexUid, sizeof(indexUid));
+  if (pStat && SMA_STAT_ITEMS(pStat)) {
+    pItem = taosHashGet(SMA_STAT_ITEMS(pStat), &indexUid, sizeof(indexUid));
   }
 
-  if ((pItem == NULL) || ((pItem = *(SSmaStatItem **)pItem) == NULL) || tsdbSmaStatIsDropped(pItem)) {
+  if (!pItem || !(pItem = *(SSmaStatItem **)pItem) || tsdbSmaStatIsDropped(pItem)) {
     terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
     tsdbUnRefSmaStat(pTsdb, pStat);
     return TSDB_CODE_FAILED;
@@ -1438,7 +1493,7 @@ static bool tsdbSetAndOpenTSmaFile(STSmaReadH *pReadH, TSKEY *queryKey) {
     ++pReadH->smaFsIter.iter;
   }
 
-  if (pReadH->pDFile != NULL) {
+  if (pReadH->pDFile) {
     tsdbDebug("vg%d: smaFile %s matched", REPO_ID(pReadH->pTsdb), "[pSmaFile dir]");
     return true;
   }
@@ -1471,7 +1526,7 @@ static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid,
 
   tsdbRefSmaStat(pTsdb, pStat);
   SSmaStatItem *pItem = taosHashGet(SMA_ENV_STAT_ITEMS(pEnv), &indexUid, sizeof(indexUid));
-  if ((pItem == NULL) || ((pItem = *(SSmaStatItem **)pItem) == NULL)) {
+  if (!pItem || !(pItem = *(SSmaStatItem **)pItem)) {
     // Normally pItem should not be NULL, mark all windows as expired and notify query module to fetch raw TS data if
     // it's NULL.
     tsdbUnRefSmaStat(pTsdb, pStat);
@@ -1484,7 +1539,7 @@ static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid,
   int32_t nQueryWin = taosArrayGetSize(pQuerySKey);
   for (int32_t n = 0; n < nQueryWin; ++n) {
     TSKEY skey = taosArrayGet(pQuerySKey, n);
-    if (taosHashGet(pItem->expiredWindows, &skey, sizeof(TSKEY)) != NULL) {
+    if (taosHashGet(pItem->expiredWindows, &skey, sizeof(TSKEY))) {
       // TODO: mark this window as expired.
     }
   }
@@ -1500,7 +1555,7 @@ static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid,
     return TSDB_CODE_FAILED;
   }
 
-  if (taosHashGet(pItem->expiredWindows, &querySKey, sizeof(TSKEY)) != NULL) {
+  if (taosHashGet(pItem->expiredWindows, &querySKey, sizeof(TSKEY))) {
     // TODO: mark this window as expired.
     tsdbDebug("vgId:%d skey %" PRIi64 " of window exists in expired window for index %" PRIi64, REPO_ID(pTsdb),
               querySKey, indexUid);
@@ -1534,7 +1589,7 @@ static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid,
 
   void   *result = NULL;
   int32_t valueSize = 0;
-  if ((result = tsdbGetSmaDataByKey(&tReadH.dFile, smaKey, SMA_KEY_LEN, &valueSize)) == NULL) {
+  if (!(result = tsdbGetSmaDataByKey(&tReadH.dFile, smaKey, SMA_KEY_LEN, &valueSize))) {
     tsdbWarn("vgId:%d get sma data failed from smaIndex %" PRIi64 ", smaKey %" PRIx64 "-%" PRIx64 " since %s",
              REPO_ID(pTsdb), indexUid, *(int64_t *)smaKey, *(int64_t *)POINTER_SHIFT(smaKey, 8), tstrerror(terrno));
     tsdbCloseDBF(&tReadH.dFile);
@@ -1578,7 +1633,7 @@ static int32_t tsdbGetTSmaDataImpl(STsdb *pTsdb, char *pData, int64_t indexUid,
 
 int32_t tsdbCreateTSma(STsdb *pTsdb, char *pMsg) {
   SSmaCfg vCreateSmaReq = {0};
-  if (tDeserializeSVCreateTSmaReq(pMsg, &vCreateSmaReq) == NULL) {
+  if (!tDeserializeSVCreateTSmaReq(pMsg, &vCreateSmaReq)) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     tsdbWarn("vgId:%d TDMT_VND_CREATE_SMA received but deserialize failed since %s", REPO_ID(pTsdb), terrstr(terrno));
     return -1;
@@ -1604,7 +1659,7 @@ int32_t tsdbCreateTSma(STsdb *pTsdb, char *pMsg) {
 
 int32_t tsdbDropTSma(STsdb *pTsdb, char *pMsg) {
   SVDropTSmaReq vDropSmaReq = {0};
-  if (tDeserializeSVDropTSmaReq(pMsg, &vDropSmaReq) == NULL) {
+  if (!tDeserializeSVDropTSmaReq(pMsg, &vDropSmaReq)) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
     return -1;
   }
@@ -1632,6 +1687,395 @@ int32_t tsdbDropTSma(STsdb *pTsdb, char *pMsg) {
   return TSDB_CODE_SUCCESS;
 }
 
+/**
+ * @brief Check and init qTaskInfo_t, only applicable to stable with SRSmaParam.
+ *
+ * @param pTsdb
+ * @param pMeta
+ * @param pReq
+ * @return int32_t
+ */
+int32_t tsdbRegisterRSma(STsdb *pTsdb, SMeta *pMeta, SVCreateTbReq *pReq) {
+  SRSmaParam *param = pReq->stbCfg.pRSmaParam;
+
+  if (!param) {
+    tsdbDebug("vgId:%d return directly since no rollup for stable %s %" PRIi64, REPO_ID(pTsdb), pReq->name,
+              pReq->stbCfg.suid);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if ((param->qmsg1Len == 0) && (param->qmsg2Len == 0)) {
+    tsdbWarn("vgId:%d no qmsg1/qmsg2 for rollup stable %s %" PRIi64, REPO_ID(pTsdb), pReq->name, pReq->stbCfg.suid);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (tsdbCheckAndInitSmaEnv(pTsdb, TSDB_SMA_TYPE_ROLLUP) != TSDB_CODE_SUCCESS) {
+    terrno = TSDB_CODE_TDB_INIT_FAILED;
+    return TSDB_CODE_FAILED;
+  }
+
+  SSmaEnv   *pEnv = REPO_RSMA_ENV(pTsdb);
+  SSmaStat  *pStat = SMA_ENV_STAT(pEnv);
+  SRSmaInfo *pRSmaInfo = NULL;
+
+  pRSmaInfo = taosHashGet(SMA_STAT_INFO_HASH(pStat), &pReq->stbCfg.suid, sizeof(tb_uid_t));
+  if (pRSmaInfo) {
+    tsdbWarn("vgId:%d rsma info already exists for stb: %s, %" PRIi64, REPO_ID(pTsdb), pReq->name, pReq->stbCfg.suid);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  pRSmaInfo = (SRSmaInfo *)taosMemoryCalloc(1, sizeof(SRSmaInfo));
+  if (!pRSmaInfo) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return TSDB_CODE_FAILED;
+  }
+
+  STqReadHandle *pReadHandle = tqInitSubmitMsgScanner(pMeta);
+  if (!pReadHandle) {
+    taosMemoryFree(pRSmaInfo);
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return TSDB_CODE_FAILED;
+  }
+
+  SReadHandle handle = {
+      .reader = pReadHandle,
+      .meta = pMeta,
+  };
+
+  if (param->qmsg1) {
+    pRSmaInfo->taskInfo[0] = qCreateStreamExecTaskInfo(param->qmsg1, &handle);
+    if (!pRSmaInfo->taskInfo[0]) {
+      taosMemoryFree(pRSmaInfo);
+      taosMemoryFree(pReadHandle);
+      return TSDB_CODE_FAILED;
+    }
+  }
+
+  if (param->qmsg2) {
+    pRSmaInfo->taskInfo[1] = qCreateStreamExecTaskInfo(param->qmsg2, &handle);
+    if (!pRSmaInfo->taskInfo[1]) {
+      taosMemoryFree(pRSmaInfo);
+      taosMemoryFree(pReadHandle);
+      return TSDB_CODE_FAILED;
+    }
+  }
+
+  if (taosHashPut(SMA_STAT_INFO_HASH(pStat), &pReq->stbCfg.suid, sizeof(tb_uid_t), &pRSmaInfo, sizeof(pRSmaInfo)) !=
+      TSDB_CODE_SUCCESS) {
+    return TSDB_CODE_FAILED;
+  } else {
+    tsdbDebug("vgId:%d register rsma info succeed for suid:%" PRIi64, REPO_ID(pTsdb), pReq->stbCfg.suid);
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+/**
+ * @brief store suid/[uids], prefer to use array and then hash
+ *
+ * @param pStore
+ * @param suid
+ * @param uid
+ * @return int32_t
+ */
+int32_t tsdbUidStorePut(STbUidStore *pStore, tb_uid_t suid, tb_uid_t *uid) {
+  // prefer to store suid/uids in array
+  if ((suid == pStore->suid) || (pStore->suid == 0)) {
+    if (pStore->suid == 0) {
+      pStore->suid = suid;
+    }
+    if (uid) {
+      if (!pStore->tbUids) {
+        if (!(pStore->tbUids = taosArrayInit(1, sizeof(tb_uid_t)))) {
+          terrno = TSDB_CODE_OUT_OF_MEMORY;
+          return TSDB_CODE_FAILED;
+        }
+      }
+      if (!taosArrayPush(pStore->tbUids, &uid)) {
+        return TSDB_CODE_FAILED;
+      }
+    }
+  } else {
+    // store other suid/uids in hash when multiple stable/table included in 1 batch of request
+    if (!pStore->uidHash) {
+      pStore->uidHash = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_ENTRY_LOCK);
+      if (!pStore->uidHash) {
+        return TSDB_CODE_FAILED;
+      }
+    }
+    if (uid) {
+      SArray *uidArray = taosHashGet(pStore->uidHash, &suid, sizeof(tb_uid_t));
+      if (uidArray && ((uidArray = *(SArray **)uidArray))) {
+        taosArrayPush(uidArray, &uid);
+      } else {
+        SArray *pUidArray = taosArrayInit(1, sizeof(tb_uid_t));
+        if (!pUidArray) {
+          terrno = TSDB_CODE_OUT_OF_MEMORY;
+          return TSDB_CODE_FAILED;
+        }
+        if (!taosArrayPush(pUidArray, &uid)) {
+          terrno = TSDB_CODE_OUT_OF_MEMORY;
+          return TSDB_CODE_FAILED;
+        }
+        if (taosHashPut(pStore->uidHash, &suid, sizeof(suid), &pUidArray, sizeof(pUidArray)) != 0) {
+          return TSDB_CODE_FAILED;
+        }
+      }
+    } else {
+      if (taosHashPut(pStore->uidHash, &suid, sizeof(suid), NULL, 0) != 0) {
+        return TSDB_CODE_FAILED;
+      }
+    }
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+void tsdbUidStoreDestory(STbUidStore *pStore) {
+  if (pStore) {
+    if (pStore->uidHash) {
+      if (pStore->tbUids) {
+        void *pIter = taosHashIterate(pStore->uidHash, NULL);
+        while (pIter) {
+          SArray *arr = *(SArray **)pIter;
+          taosArrayDestroy(arr);
+          pIter = taosHashIterate(pStore->uidHash, pIter);
+        }
+      }
+      taosHashCleanup(pStore->uidHash);
+    }
+    taosArrayDestroy(pStore->tbUids);
+  }
+}
+
+void *tsdbUidStoreFree(STbUidStore *pStore) {
+  tsdbUidStoreDestory(pStore);
+  taosMemoryFree(pStore);
+  return NULL;
+}
+
+/**
+ * @brief fetch suid/uids when create child tables of rollup SMA
+ *
+ * @param pTsdb
+ * @param ppStore
+ * @param suid
+ * @param uid
+ * @return int32_t
+ */
+int32_t tsdbFetchTbUidList(void *pTsdb, void **ppStore, void *suid, void *uid) {
+  SSmaEnv *pEnv = REPO_RSMA_ENV((STsdb *)pTsdb);
+
+  // only applicable to rollup SMA ctables
+  if (!pEnv) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  SSmaStat *pStat = SMA_ENV_STAT(pEnv);
+  SHashObj *infoHash = NULL;
+  if (!pStat || !(infoHash = SMA_STAT_INFO_HASH(pStat))) {
+    terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
+    return TSDB_CODE_FAILED;
+  }
+
+  // info cached when create rsma stable and return directly for non-rsma ctables
+  if (!taosHashGet(infoHash, suid, sizeof(tb_uid_t))) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (!(*ppStore)) {
+    if (tsdbUidStoreInit((STbUidStore **)ppStore) != 0) {
+      return TSDB_CODE_FAILED;
+    }
+  }
+
+  if (tsdbUidStorePut(*ppStore, *(tb_uid_t *)suid, (tb_uid_t *)uid) != 0) {
+    *ppStore = tsdbUidStoreFree(*ppStore);
+    return TSDB_CODE_FAILED;
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static FORCE_INLINE int32_t tsdbUpdateTbUidListImpl(STsdb *pTsdb, tb_uid_t *suid, SArray *tbUids) {
+  SSmaEnv   *pEnv = REPO_RSMA_ENV(pTsdb);
+  SSmaStat  *pStat = SMA_ENV_STAT(pEnv);
+  SRSmaInfo *pRSmaInfo = NULL;
+
+  if (!suid || !tbUids) {
+    terrno = TSDB_CODE_INVALID_PTR;
+    tsdbError("vgId:%d failed to get rsma info for uid:%" PRIi64 " since %s", REPO_ID(pTsdb), *suid, terrstr(terrno));
+    return TSDB_CODE_FAILED;
+  }
+
+  pRSmaInfo = taosHashGet(SMA_STAT_INFO_HASH(pStat), suid, sizeof(tb_uid_t));
+  if (!pRSmaInfo || !(pRSmaInfo = *(SRSmaInfo **)pRSmaInfo)) {
+    tsdbError("vgId:%d failed to get rsma info for uid:%" PRIi64, REPO_ID(pTsdb), *suid);
+    terrno = TSDB_CODE_TDB_INVALID_SMA_STAT;
+    return TSDB_CODE_FAILED;
+  }
+
+  if (pRSmaInfo->taskInfo[0] && (qUpdateQualifiedTableId(pRSmaInfo->taskInfo[0], tbUids, true) != 0)) {
+    tsdbError("vgId:%d update tbUidList failed for uid:%" PRIi64 " since %s", REPO_ID(pTsdb), *suid, terrstr(terrno));
+    return TSDB_CODE_FAILED;
+  } else {
+    tsdbDebug("vgId:%d update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 ", uid:%" PRIi64, REPO_ID(pTsdb),
+              pRSmaInfo->taskInfo[0], *suid, *(int64_t *)taosArrayGet(tbUids, 0));
+  }
+
+  if (pRSmaInfo->taskInfo[1] && (qUpdateQualifiedTableId(pRSmaInfo->taskInfo[1], tbUids, true) != 0)) {
+    tsdbError("vgId:%d update tbUidList failed for uid:%" PRIi64 " since %s", REPO_ID(pTsdb), *suid, terrstr(terrno));
+    return TSDB_CODE_FAILED;
+  } else {
+    tsdbDebug("vgId:%d update tbUidList succeed for qTaskInfo:%p with suid:%" PRIi64 ", uid:%" PRIi64, REPO_ID(pTsdb),
+              pRSmaInfo->taskInfo[1], *suid, *(int64_t *)taosArrayGet(tbUids, 0));
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t tsdbUpdateTbUidList(STsdb *pTsdb, STbUidStore *pStore) {
+  if (!pStore || (taosArrayGetSize(pStore->tbUids) == 0)) {
+    tsdbDebug("vgId:%d no need to update tbUids since empty uidStore", REPO_ID(pTsdb));
+    tsdbUidStoreFree(pStore);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (tsdbUpdateTbUidListImpl(pTsdb, &pStore->suid, pStore->tbUids) != TSDB_CODE_SUCCESS) {
+    tsdbUidStoreFree(pStore);
+    return TSDB_CODE_FAILED;
+  }
+
+  void *pIter = taosHashIterate(pStore->uidHash, NULL);
+  while (pIter) {
+    tb_uid_t *pTbSuid = (tb_uid_t *)taosHashGetKey(pIter, NULL);
+    SArray   *pTbUids = *(SArray **)pIter;
+
+    if (tsdbUpdateTbUidListImpl(pTsdb, pTbSuid, pTbUids) != TSDB_CODE_SUCCESS) {
+      taosHashCancelIterate(pStore->uidHash, pIter);
+      tsdbUidStoreFree(pStore);
+      return TSDB_CODE_FAILED;
+    }
+
+    pIter = taosHashIterate(pStore->uidHash, pIter);
+  }
+
+  tsdbUidStoreFree(pStore);
+
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t tsdbFetchSubmitReqSuids(SSubmitReq *pMsg, STbUidStore *pStore) {
+  ASSERT(pMsg != NULL);
+  SSubmitMsgIter msgIter = {0};
+  SSubmitBlk    *pBlock = NULL;
+  SSubmitBlkIter blkIter = {0};
+  STSRow        *row = NULL;
+
+  terrno = TSDB_CODE_SUCCESS;
+  // pMsg->length = htonl(pMsg->length);
+  // pMsg->numOfBlocks = htonl(pMsg->numOfBlocks);
+
+  if (tInitSubmitMsgIter(pMsg, &msgIter) < 0) return -1;
+  while (true) {
+    if (tGetSubmitMsgNext(&msgIter, &pBlock) < 0) return -1;
+
+    if (!pBlock) break;
+    tsdbUidStorePut(pStore, pBlock->suid, NULL);
+  }
+
+  if (terrno != TSDB_CODE_SUCCESS) return -1;
+  return 0;
+}
+
+int32_t tsdbExecuteRSma(STsdb *pTsdb, SMeta *pMeta, const void *pMsg, int32_t inputType, tb_uid_t *suid) {
+  SSmaEnv *pEnv = REPO_RSMA_ENV(pTsdb);
+  if (!pEnv) {
+    // only applicable when rsma env exists
+    return TSDB_CODE_SUCCESS;
+  }
+
+  SSmaStat  *pStat = SMA_ENV_STAT(pEnv);
+  SRSmaInfo *pRSmaInfo = NULL;
+
+  pRSmaInfo = taosHashGet(SMA_STAT_INFO_HASH(pStat), suid, sizeof(tb_uid_t));
+
+  if (!pRSmaInfo || !(pRSmaInfo = *(SRSmaInfo **)pRSmaInfo)) {
+    tsdbDebug("vgId:%d no rsma info for suid:%" PRIu64, REPO_ID(pTsdb), *suid);
+    return TSDB_CODE_SUCCESS;
+  }
+
+  SArray *pResult = NULL;
+
+  pResult = taosArrayInit(0, sizeof(SSDataBlock));
+  if (!pResult) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return -1;
+  }
+
+  if (inputType == STREAM_DATA_TYPE_SUBMIT_BLOCK) {
+    if (pRSmaInfo->taskInfo[0]) {
+      qSetStreamInput(pRSmaInfo->taskInfo[0], pMsg, inputType);
+      while (1) {
+        SSDataBlock *output;
+        uint64_t     ts;
+        if (qExecTask(pRSmaInfo->taskInfo[0], &output, &ts) < 0) {
+          ASSERT(false);
+        }
+        if (!output) {
+          break;
+        }
+        taosArrayPush(pResult, output);
+      }
+      blockDebugShowData(pResult);
+    }
+
+    // if (pRSmaInfo->taskInfo[1]) {
+    //   qSetStreamInput(pRSmaInfo->taskInfo[1], pMsg, inputType);
+    //   while (1) {
+    //     SSDataBlock *output;
+    //     uint64_t     ts;
+    //     if (qExecTask(pRSmaInfo->taskInfo[1], &output, &ts) < 0) {
+    //       ASSERT(false);
+    //     }
+    //     if (!output) {
+    //       break;
+    //     }
+    //     taosArrayPush(pResult, output);
+    //   }
+    //   blockDebugShowData(pResult);
+    // }
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t tsdbTriggerRSma(STsdb *pTsdb, SMeta *pMeta, void *pMsg, int32_t inputType) {
+  SSmaEnv *pEnv = REPO_RSMA_ENV(pTsdb);
+  if (!pEnv) {
+    // only applicable when rsma env exists
+    return TSDB_CODE_SUCCESS;
+  }
+
+  if (inputType == STREAM_DATA_TYPE_SUBMIT_BLOCK) {
+    STbUidStore uidStore = {0};
+    tsdbFetchSubmitReqSuids(pMsg, &uidStore);
+
+    if (uidStore.suid != 0) {
+      tsdbExecuteRSma(pTsdb, pMeta, pMsg, inputType, &uidStore.suid);
+
+      void *pIter = taosHashIterate(uidStore.uidHash, NULL);
+      while (pIter) {
+        tb_uid_t *pTbSuid = (tb_uid_t *)taosHashGetKey(pIter, NULL);
+        tsdbExecuteRSma(pTsdb, pMeta, pMsg, inputType, pTbSuid);
+        pIter = taosHashIterate(uidStore.uidHash, pIter);
+      }
+
+      tsdbUidStoreDestory(&uidStore);
+    }
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
 #if 0
 /**
  * @brief Get the start TS key of the last data block of one interval/sliding.
@@ -1674,6 +2118,7 @@ int32_t tsdbInsertTSmaData(STsdb *pTsdb, int64_t indexUid, const char *msg) {
   if ((code = tsdbInsertTSmaDataImpl(pTsdb, indexUid, msg)) < 0) {
     tsdbWarn("vgId:%d insert tSma data failed since %s", REPO_ID(pTsdb), tstrerror(terrno));
   }
+  // TODO: destroy SSDataBlocks(msg)
   return code;
 }
 
diff --git a/source/dnode/vnode/src/vnd/vnodeOpen.c b/source/dnode/vnode/src/vnd/vnodeOpen.c
index 2b10afa5ed..11136bc7ba 100644
--- a/source/dnode/vnode/src/vnd/vnodeOpen.c
+++ b/source/dnode/vnode/src/vnd/vnodeOpen.c
@@ -14,6 +14,7 @@
  */
 
 #include "vnodeInt.h"
+#include "vnodeSync.h"
 
 int vnodeCreate(const char *path, SVnodeCfg *pCfg, STfs *pTfs) {
   SVnodeInfo info = {0};
@@ -171,6 +172,16 @@ void vnodeClose(SVnode *pVnode) {
   }
 }
 
+// start the sync timer after the queue is ready
+int32_t vnodeStart(SVnode *pVnode) {
+  vnodeSyncSetQ(pVnode, NULL);
+  vnodeSyncSetRpc(pVnode, NULL);
+  vnodeSyncStart(pVnode);
+  return 0;
+}
+
+void vnodeStop(SVnode *pVnode) {}
+
 int64_t vnodeGetSyncHandle(SVnode *pVnode) { return pVnode->sync; }
 
 void vnodeGetSnapshot(SVnode *pVnode, SSnapshot *pSnapshot) { pSnapshot->lastApplyIndex = pVnode->state.committed; }
\ No newline at end of file
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index e72dbc42c4..e907158897 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -83,6 +83,7 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
     case TDMT_VND_SUBMIT:
       pRsp->msgType = TDMT_VND_SUBMIT_RSP;
       vnodeProcessSubmitReq(pVnode, ptr, pRsp);
+      tsdbTriggerRSma(pVnode->pTsdb, pVnode->pMeta, ptr, STREAM_DATA_TYPE_SUBMIT_BLOCK);
       break;
     case TDMT_VND_MQ_VG_CHANGE:
       if (tqProcessVgChangeReq(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)),
@@ -101,7 +102,6 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
       }
     } break;
     case TDMT_VND_CREATE_SMA: {  // timeRangeSMA
-
       if (tsdbCreateTSma(pVnode->pTsdb, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead))) < 0) {
         // TODO
       }
@@ -277,19 +277,12 @@ int vnodeProcessSyncReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
 static int vnodeProcessCreateStbReq(SVnode *pVnode, void *pReq) {
   SVCreateTbReq vCreateTbReq = {0};
   tDeserializeSVCreateTbReq(pReq, &vCreateTbReq);
-  if (metaCreateTable(pVnode->pMeta, &(vCreateTbReq)) < 0) {
+  if (metaCreateTable(pVnode->pMeta, &(vCreateTbReq), NULL) < 0) {
     // TODO
     return -1;
   }
 
-  // TODO: remove the debug log
-  SRSmaParam *param = vCreateTbReq.stbCfg.pRSmaParam;
-  if (param) {
-    printf("qmsg1 len = %d, body = %s\n", param->qmsg1 ? (int32_t)strlen(param->qmsg1) : 0,
-           param->qmsg1 ? param->qmsg1 : "");
-    printf("qmsg1 len = %d, body = %s\n", param->qmsg2 ? (int32_t)strlen(param->qmsg2) : 0,
-           param->qmsg2 ? param->qmsg2 : "");
-  }
+  tsdbRegisterRSma(pVnode->pTsdb, pVnode->pMeta, &vCreateTbReq);
 
   taosMemoryFree(vCreateTbReq.stbCfg.pSchema);
   taosMemoryFree(vCreateTbReq.stbCfg.pTagSchema);
@@ -308,6 +301,13 @@ static int vnodeProcessCreateTbReq(SVnode *pVnode, SRpcMsg *pMsg, void *pReq, SR
   SVCreateTbBatchRsp vCreateTbBatchRsp = {0};
   tDeserializeSVCreateTbBatchReq(pReq, &vCreateTbBatchReq);
   int reqNum = taosArrayGetSize(vCreateTbBatchReq.pArray);
+
+  STbDdlH ddlHandle = {
+      .ahandle = pVnode->pTsdb,
+      .result = NULL,
+      .fp = tsdbFetchTbUidList,
+  };
+
   for (int i = 0; i < reqNum; i++) {
     SVCreateTbReq *pCreateTbReq = taosArrayGet(vCreateTbBatchReq.pArray, i);
 
@@ -323,7 +323,7 @@ static int vnodeProcessCreateTbReq(SVnode *pVnode, SRpcMsg *pMsg, void *pReq, SR
       taosArrayPush(vCreateTbBatchRsp.rspList, &rsp);
     }
 
-    if (metaCreateTable(pVnode->pMeta, pCreateTbReq) < 0) {
+    if (metaCreateTable(pVnode->pMeta, pCreateTbReq, &ddlHandle) < 0) {
       // TODO: handle error
       vError("vgId:%d, failed to create table: %s", TD_VID(pVnode), pCreateTbReq->name);
     }
@@ -345,6 +345,8 @@ static int vnodeProcessCreateTbReq(SVnode *pVnode, SRpcMsg *pMsg, void *pReq, SR
     }
   }
 
+  tsdbUpdateTbUidList(pVnode->pTsdb, ddlHandle.result);
+
   vTrace("vgId:%d process create %" PRIzu " tables", TD_VID(pVnode), taosArrayGetSize(vCreateTbBatchReq.pArray));
   taosArrayDestroy(vCreateTbBatchReq.pArray);
   if (vCreateTbBatchRsp.rspList) {
diff --git a/source/dnode/vnode/test/tsdbSmaTest.cpp b/source/dnode/vnode/test/tsdbSmaTest.cpp
index b0217a0462..ab617cb186 100644
--- a/source/dnode/vnode/test/tsdbSmaTest.cpp
+++ b/source/dnode/vnode/test/tsdbSmaTest.cpp
@@ -407,7 +407,7 @@ TEST(testCase, tSma_Data_Insert_Query_Test) {
     }
   }
 
-  EXPECT_EQ(tdScanAndConvertSubmitMsg(pMsg), TSDB_CODE_SUCCESS);
+  // EXPECT_EQ(tdScanAndConvertSubmitMsg(pMsg), TSDB_CODE_SUCCESS);
 
   EXPECT_EQ(tsdbUpdateSmaWindow(pTsdb, pMsg, 0), 0);
 
diff --git a/source/libs/command/src/explain.c b/source/libs/command/src/explain.c
index 75084e7610..d17a5a59a4 100644
--- a/source/libs/command/src/explain.c
+++ b/source/libs/command/src/explain.c
@@ -304,8 +304,8 @@ int32_t qExplainResAppendRow(SExplainCtx *ctx, char *tbuf, int32_t len, int32_t
 
   memcpy(row.buf, tbuf, len);
   row.level = level;
-  row.len = len;
-  ctx->dataSize += len;
+  row.len   = len;
+  ctx->dataSize += row.len;
 
   if (NULL == taosArrayPush(ctx->rows, &row)) {
     qError("taosArrayPush row to explain res rows failed");
@@ -756,7 +756,7 @@ int32_t qExplainGetRspFromCtx(void *ctx, SRetrieveTableRsp **pRsp) {
   }
   
   int32_t colNum = 1;
-  int32_t rspSize = sizeof(SRetrieveTableRsp) + sizeof(int32_t) * colNum + sizeof(int32_t) * rowNum + pCtx->dataSize;
+  int32_t rspSize = sizeof(SRetrieveTableRsp) + sizeof(int32_t) + sizeof(uint64_t) + sizeof(int32_t) * colNum + sizeof(int32_t) * rowNum + pCtx->dataSize;
   SRetrieveTableRsp *rsp = (SRetrieveTableRsp *)taosMemoryCalloc(1, rspSize);
   if (NULL == rsp) {
     qError("malloc SRetrieveTableRsp failed, size:%d", rspSize);
@@ -766,29 +766,38 @@ int32_t qExplainGetRspFromCtx(void *ctx, SRetrieveTableRsp **pRsp) {
   rsp->completed = 1;
   rsp->numOfRows = htonl(rowNum);
 
-  *(int32_t *)rsp->data = htonl(pCtx->dataSize);
+  // payload length
+  *(int32_t *)rsp->data = sizeof(int32_t) + sizeof(uint64_t) + sizeof(int32_t) * colNum + sizeof(int32_t) * rowNum + pCtx->dataSize;
 
-  int32_t *offset = (int32_t *)((char *)rsp->data + sizeof(int32_t));
+  // group id
+  *(uint64_t*)(rsp->data + sizeof(int32_t)) = 0;
+
+  // column length
+  int32_t* colLength = (int32_t *)(rsp->data + sizeof(int32_t) + sizeof(uint64_t));
+
+  // varchar column offset segment
+  int32_t *offset = (int32_t *)((char *)colLength + sizeof(int32_t));
+
+  // varchar data real payload
   char *data = (char *)(offset + rowNum);
-  int32_t tOffset = 0;
-  
+
+  char* start = data;
   for (int32_t i = 0; i < rowNum; ++i) {
     SQueryExplainRowInfo *row = taosArrayGet(pCtx->rows, i);
-    *offset = tOffset;
-    tOffset += row->len;
+    offset[i] = data - start;
 
-    memcpy(data, row->buf, row->len);
-    
-    ++offset;
+    varDataCopy(data, row->buf);
+    ASSERT(varDataTLen(row->buf) == row->len);
     data += row->len;
   }
 
-  *pRsp = rsp;
+  *colLength = htonl(data - start);
+  rsp->compLen = htonl(rspSize);
 
+  *pRsp = rsp;
   return TSDB_CODE_SUCCESS;
 }
 
-
 int32_t qExplainPrepareCtx(SQueryPlan *pDag, SExplainCtx **pCtx) {
   int32_t code = 0;
   SNodeListNode *plans = NULL;
@@ -895,9 +904,7 @@ int32_t qExplainAppendPlanRows(SExplainCtx *pCtx) {
 
 int32_t qExplainGenerateRsp(SExplainCtx *pCtx, SRetrieveTableRsp **pRsp) {
   QRY_ERR_RET(qExplainAppendGroupResRows(pCtx, pCtx->rootGroupId, 0));
-
   QRY_ERR_RET(qExplainAppendPlanRows(pCtx));
-  
   QRY_ERR_RET(qExplainGetRspFromCtx(pCtx, pRsp));
 
   return TSDB_CODE_SUCCESS;
@@ -967,13 +974,10 @@ int32_t qExecStaticExplain(SQueryPlan *pDag, SRetrieveTableRsp **pRsp) {
   SExplainCtx *pCtx = NULL;
 
   QRY_ERR_RET(qExplainPrepareCtx(pDag, &pCtx));
-  
   QRY_ERR_JRET(qExplainGenerateRsp(pCtx, pRsp));
   
 _return:
-
   qExplainFreeCtx(pCtx);
-
   QRY_RET(code);
 }
 
diff --git a/source/libs/executor/inc/executil.h b/source/libs/executor/inc/executil.h
index 834d37927a..f0cb1c1107 100644
--- a/source/libs/executor/inc/executil.h
+++ b/source/libs/executor/inc/executil.h
@@ -40,8 +40,6 @@
 
 #define GET_TASKID(_t)  (((SExecTaskInfo*)(_t))->id.str)
 
-#define curTimeWindowIndex(_winres)        ((_winres)->curIndex)
-
 typedef struct SGroupResInfo {
   int32_t totalGroup;
   int32_t currentGroup;
@@ -68,11 +66,16 @@ typedef struct SResultRowPosition {
   int32_t offset;
 } SResultRowPosition;
 
+typedef struct SResKeyPos {
+  SResultRowPosition pos;
+  uint64_t  groupId;
+  char      key[];
+} SResKeyPos;
+
 typedef struct SResultRowInfo {
   SResultRowPosition *pPosition;
   int32_t      size;       // number of result set
   int32_t      capacity;   // max capacity
-//  int32_t      curPos;     // current active result row index of pResult list
   SResultRowPosition cur;
 } SResultRowInfo;
 
@@ -135,7 +138,7 @@ typedef struct {
   int32_t colId;
 } SStddevInterResult;
 
-void    initGroupResInfo(SGroupResInfo* pGroupResInfo, SResultRowInfo* pResultInfo);
+void    initGroupedResultInfo(SGroupResInfo* pGroupResInfo, SHashObj* pHashmap, bool sortGroupResult);
 void    initMultiResInfoFromArrayList(SGroupResInfo* pGroupResInfo, SArray* pArrayList);
 
 void    cleanupGroupResInfo(SGroupResInfo* pGroupResInfo);
diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index c6d209e706..363824f2e2 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -347,10 +347,11 @@ typedef struct STableScanInfo {
 } STableScanInfo;
 
 typedef struct STagScanInfo {
-  SColumnInfo* pCols;
-  SSDataBlock* pRes;
+  SColumnInfo *pCols;
+  SSDataBlock *pRes;
   int32_t      totalTables;
   int32_t      curPos;
+  void        *pReader;
 } STagScanInfo;
 
 typedef struct SStreamBlockScanInfo {
@@ -376,13 +377,11 @@ typedef struct SSysTableScanInfo {
   SEpSet                 epSet;
   tsem_t                 ready;
 
-  int32_t accountId;
-  bool    showRewrite;
-  SNode*  pCondition;  // db_name filter condition, to discard data that are not in current database
-  void*   pCur;        // cursor for iterate the local table meta store.
-  SArray* scanCols;    // SArray<int16_t> scan column id list
-
-//  int32_t             type;  // show type, TODO remove it
+  int32_t             accountId;
+  bool                showRewrite;
+  SNode*              pCondition;  // db_name filter condition, to discard data that are not in current database
+  void*               pCur;        // cursor for iterate the local table meta store.
+  SArray*             scanCols;    // SArray<int16_t> scan column id list
   SName               name;
   SSDataBlock*        pRes;
   int32_t             capacity;
@@ -400,8 +399,8 @@ typedef struct SOptrBasicInfo {
 // TODO move the resultrowsiz together with SOptrBasicInfo:rowCellInfoOffset
 typedef struct SAggSupporter {
   SHashObj*      pResultRowHashTable;  // quick locate the window object for each result
-  SHashObj*      pResultRowListSet;    // used to check if current ResultRowInfo has ResultRow object or not
-  SArray*        pResultRowArrayList;  // The array list that contains the Result rows
+//  SHashObj*      pResultRowListSet;    // used to check if current ResultRowInfo has ResultRow object or not
+//  SArray*        pResultRowArrayList;  // The array list that contains the Result rows
   char*          keyBuf;               // window key buffer
   SDiskbasedBuf* pResultBuf;           // query result buffer based on blocked-wised disk file
   int32_t        resultRowSize;        // the result buffer size for each result row, with the meta data size for each row
@@ -628,7 +627,7 @@ SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput,
 
 SOperatorInfo* createExchangeOperatorInfo(const SNodeList* pSources, SSDataBlock* pBlock, SExecTaskInfo* pTaskInfo);
 
-SOperatorInfo* createTableScanOperatorInfo(void* pTsdbReadHandle, int32_t order, int32_t numOfCols, int32_t dataLoadFlag, int32_t repeatTime,
+SOperatorInfo* createTableScanOperatorInfo(void* pReaderHandle, int32_t order, int32_t numOfCols, int32_t dataLoadFlag, int32_t repeatTime,
                                            int32_t reverseTime, SArray* pColMatchInfo, SSDataBlock* pResBlock, SNode* pCondition,
                                            SInterval* pInterval, double ratio, SExecTaskInfo* pTaskInfo);
 SOperatorInfo* createAggregateOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResultBlock, SExprInfo* pScalarExprInfo,
@@ -668,12 +667,12 @@ SOperatorInfo* createTimeSliceOperatorInfo(SOperatorInfo* downstream, SExprInfo*
                                            SSDataBlock* pResultBlock, SExecTaskInfo* pTaskInfo);
 
 SOperatorInfo* createJoinOperatorInfo(SOperatorInfo** pDownstream, int32_t numOfDownstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResBlock, SNode* pOnCondition, SExecTaskInfo* pTaskInfo);
+SOperatorInfo* createTagScanOperatorInfo(void* pReaderHandle, SExprInfo* pExpr, int32_t numOfOutput, SExecTaskInfo* pTaskInfo);
 
 #if 0
 SOperatorInfo* createTableSeqScanOperatorInfo(void* pTsdbReadHandle, STaskRuntimeEnv* pRuntimeEnv);
 SOperatorInfo* createMultiTableTimeIntervalOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SOperatorInfo* downstream,
                                                         SExprInfo* pExpr, int32_t numOfOutput);
-SOperatorInfo* createTagScanOperatorInfo(SReaderHandle* pReaderHandle, SExprInfo* pExpr, int32_t numOfOutput);
 #endif
 
 void projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBlock* pSrcBlock, SqlFunctionCtx* pCtx,
diff --git a/source/libs/executor/src/dataDispatcher.c b/source/libs/executor/src/dataDispatcher.c
index e897bc8892..a5ce01dba2 100644
--- a/source/libs/executor/src/dataDispatcher.c
+++ b/source/libs/executor/src/dataDispatcher.c
@@ -64,10 +64,10 @@ static bool needCompress(const SSDataBlock* pData, int32_t numOfCols) {
 }
 
 // data format:
-// +----------------+--------------------------------------+-------------+-----------+-------------+-----------+
-// |SDataCacheEntry | column#1 length, column#2 length ... | col1 bitmap | col1 data | col2 bitmap | col2 data | ....
-// |                |    sizeof(int32_t) * numOfCols       | actual size |           | actual size |           |
-// +----------------+--------------------------------------+-------------+-----------+-------------+-----------+
+// +----------------+--------------+----------+--------------------------------------+-------------+-----------+-------------+-----------+
+// |SDataCacheEntry | total length | group id | column#1 length, column#2 length ... | col1 bitmap | col1 data | col2 bitmap | col2 data | ....
+// |                |  (4 bytes)   |(8 bytes) | sizeof(int32_t) * numOfCols          | actual size |           | actual size |           |
+// +----------------+--------------+----------+--------------------------------------+-------------+-----------+-------------+-----------+
 // The length of bitmap is decided by number of rows of this data block, and the length of each column data is
 // recorded in the first segment, next to the struct header
 static void toDataCacheEntry(const SDataDispatchHandle* pHandle, const SInputData* pInput, SDataDispatchBuf* pBuf) {
diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 98b72cf4c2..c3fa777779 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -186,12 +186,50 @@ void cleanupGroupResInfo(SGroupResInfo* pGroupResInfo) {
   pGroupResInfo->index     = 0;
 }
 
-void initGroupResInfo(SGroupResInfo* pGroupResInfo, SResultRowInfo* pResultInfo) {
+static int32_t resultrowCompar1(const void* p1, const void* p2) {
+  SResKeyPos* pp1 = *(SResKeyPos**) p1;
+  SResKeyPos* pp2 = *(SResKeyPos**) p2;
+
+  if (pp1->groupId == pp2->groupId) {
+    int64_t pts1 = *(int64_t*) pp1->key;
+    int64_t pts2 = *(int64_t*) pp2->key;
+
+    if (pts1 == pts2) {
+      return 0;
+    } else {
+      return pts1 < pts2? -1:1;
+    }
+  } else {
+    return pp1->groupId < pp2->groupId? -1:1;
+  }
+}
+
+void initGroupedResultInfo(SGroupResInfo* pGroupResInfo, SHashObj* pHashmap, bool sortGroupResult) {
   if (pGroupResInfo->pRows != NULL) {
     taosArrayDestroy(pGroupResInfo->pRows);
   }
 
-  pGroupResInfo->pRows = taosArrayFromList(pResultInfo->pPosition, pResultInfo->size, sizeof(SResultRowPosition));
+  // extract the result rows information from the hash map
+  void* pData = NULL;
+  pGroupResInfo->pRows = taosArrayInit(10, POINTER_BYTES);
+
+  size_t keyLen = 0;
+  while((pData = taosHashIterate(pHashmap, pData)) != NULL) {
+    void* key = taosHashGetKey(pData, &keyLen);
+
+    SResKeyPos* p = taosMemoryMalloc(keyLen + sizeof(SResultRowPosition));
+
+    p->groupId = *(uint64_t*) key;
+    p->pos = *(SResultRowPosition*) pData;
+    memcpy(p->key, key + sizeof(uint64_t), keyLen - sizeof(uint64_t));
+
+    taosArrayPush(pGroupResInfo->pRows, &p);
+  }
+
+  if (sortGroupResult) {
+    qsort(pGroupResInfo->pRows->pData, taosArrayGetSize(pGroupResInfo->pRows), POINTER_BYTES, resultrowCompar1);
+  }
+
   pGroupResInfo->index = 0;
   assert(pGroupResInfo->index <= getNumOfTotalRes(pGroupResInfo));
 }
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index 32c3a60b0f..434591c4c3 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -235,7 +235,6 @@ static int32_t doCopyToSDataBlock(SSDataBlock* pBlock, SExprInfo* pExprInfo, SDi
 
 static void initCtxOutputBuffer(SqlFunctionCtx* pCtx, int32_t size);
 static void setResultBufSize(STaskAttr* pQueryAttr, SResultInfo* pResultInfo);
-static void setCtxTagForJoin(STaskRuntimeEnv* pRuntimeEnv, SqlFunctionCtx* pCtx, SExprInfo* pExprInfo, void* pTable);
 static void doSetTableGroupOutputBuf(SAggOperatorInfo* pAggInfo, int32_t numOfOutput, uint64_t groupId,
                                      SExecTaskInfo* pTaskInfo);
 
@@ -269,7 +268,6 @@ SSDataBlock* createResDataBlock(SDataBlockDescNode* pNode) {
   int32_t numOfCols = LIST_LENGTH(pNode->pSlots);
 
   SSDataBlock* pBlock = taosMemoryCalloc(1, sizeof(SSDataBlock));
-  pBlock->info.numOfCols = numOfCols;
   pBlock->pDataBlock = taosArrayInit(numOfCols, sizeof(SColumnInfoData));
 
   pBlock->info.blockId = pNode->dataBlockId;
@@ -295,29 +293,10 @@ SSDataBlock* createResDataBlock(SDataBlockDescNode* pNode) {
     taosArrayPush(pBlock->pDataBlock, &idata);
   }
 
+  pBlock->info.numOfCols = taosArrayGetSize(pBlock->pDataBlock);
   return pBlock;
 }
 
-static bool isSelectivityWithTagsQuery(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
-  return true;
-  //  bool    hasTags = false;
-  //  int32_t numOfSelectivity = 0;
-  //
-  //  for (int32_t i = 0; i < numOfOutput; ++i) {
-  //    int32_t functId = pCtx[i].functionId;
-  //    if (functId == FUNCTION_TAG_DUMMY || functId == FUNCTION_TS_DUMMY) {
-  //      hasTags = true;
-  //      continue;
-  //    }
-  //
-  //    if ((aAggs[functId].status & FUNCSTATE_SELECTIVITY) != 0) {
-  //      numOfSelectivity++;
-  //    }
-  //  }
-  //
-  //  return (numOfSelectivity > 0 && hasTags);
-}
-
 static bool hasNull(SColumn* pColumn, SColumnDataAgg* pStatis) {
   if (TSDB_COL_IS_TAG(pColumn->flag) || TSDB_COL_IS_UD_COL(pColumn->flag) ||
       pColumn->colId == PRIMARYKEY_TIMESTAMP_COL_ID) {
@@ -345,11 +324,16 @@ static void prepareResultListBuffer(SResultRowInfo* pResultRowInfo, jmp_buf env)
     newCapacity = (int64_t)(pResultRowInfo->capacity * 1.5);
   }
 
-  if (newCapacity == pResultRowInfo->capacity) {
+  if (newCapacity <= pResultRowInfo->capacity) {
     newCapacity += 4;
   }
 
-  pResultRowInfo->pPosition = taosMemoryRealloc(pResultRowInfo->pPosition, newCapacity * sizeof(SResultRowPosition));
+  char* p = taosMemoryRealloc(pResultRowInfo->pPosition, newCapacity * sizeof(SResultRowPosition));
+  if (p == NULL) {
+    longjmp(env, TSDB_CODE_OUT_OF_MEMORY);
+  }
+
+  pResultRowInfo->pPosition = (SResultRowPosition*)p;
 
   int32_t inc = (int32_t)newCapacity - pResultRowInfo->capacity;
   memset(&pResultRowInfo->pPosition[pResultRowInfo->capacity], 0, sizeof(SResultRowPosition) * inc);
@@ -433,88 +417,63 @@ SResultRow* getNewResultRow_rv(SDiskbasedBuf* pResultBuf, int64_t tableGroupId,
   return pResultRow;
 }
 
-static SResultRow* doSetResultOutBufByKey_rv(SDiskbasedBuf* pResultBuf, SResultRowInfo* pResultRowInfo, int64_t uid,
+/**
+ * the struct of key in hash table
+ * +----------+---------------+
+ * | group id |   key data    |
+ * | 8 bytes  | actual length |
+ * +----------+---------------+
+ */
+static SResultRow* doSetResultOutBufByKey(SDiskbasedBuf* pResultBuf, SResultRowInfo* pResultRowInfo, int64_t uid,
                                              char* pData, int16_t bytes, bool masterscan, uint64_t groupId,
                                              SExecTaskInfo* pTaskInfo, bool isIntervalQuery, SAggSupporter* pSup) {
-  bool existInCurrentResusltRowInfo = false;
   SET_RES_WINDOW_KEY(pSup->keyBuf, pData, bytes, groupId);
 
   SResultRowPosition* p1 =
       (SResultRowPosition*)taosHashGet(pSup->pResultRowHashTable, pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes));
 
+  SResultRow* pResult = NULL;
+
   // in case of repeat scan/reverse scan, no new time window added.
   if (isIntervalQuery) {
-    if (!masterscan) {  // the *p1 may be NULL in case of sliding+offset exists.
-      if (p1 != NULL) {
-        return getResultRowByPos(pResultBuf, p1);
-      } else {
-        return NULL;
-      }
-    }
-
-    if (p1 != NULL) {
-      if (pResultRowInfo->size == 0) {
-        existInCurrentResusltRowInfo =
-            false;  // this time window created by other timestamp that does not belongs to current table.
-      } else if (pResultRowInfo->size == 1) {
-        SResultRowPosition* p = &pResultRowInfo->pPosition[0];
-        existInCurrentResusltRowInfo = (p->pageId == p1->pageId && p->offset == p1->offset);
-      } else {  // check if current pResultRowInfo contains the existInCurrentResusltRowInfo pResultRow
-        SET_RES_EXT_WINDOW_KEY(pSup->keyBuf, pData, bytes, uid, pResultRowInfo);
-        int64_t* index = taosHashGet(pSup->pResultRowListSet, pSup->keyBuf, GET_RES_EXT_WINDOW_KEY_LEN(bytes));
-        if (index != NULL) {
-          // TODO check the scan order for current opened time window
-          existInCurrentResusltRowInfo = true;
-        } else {
-          existInCurrentResusltRowInfo = false;
-        }
-      }
+    if (masterscan && p1 != NULL) {  // the *p1 may be NULL in case of sliding+offset exists.
+      pResult = getResultRowByPos(pResultBuf, p1);
     }
   } else {
     // In case of group by column query, the required SResultRow object must be existInCurrentResusltRowInfo in the
     // pResultRowInfo object.
     if (p1 != NULL) {
-      return getResultRowByPos(pResultBuf, p1);
-    }
-  }
-
-  SResultRow* pResult = NULL;
-  if (!existInCurrentResusltRowInfo) {
-    // 1. close current opened time window
-    if (pResultRowInfo->cur.pageId != -1) {  // todo extract function
-      SResultRowPosition pos = pResultRowInfo->cur;
-      SFilePage*         pPage = getBufPage(pResultBuf, pos.pageId);
-      SResultRow*        pRow = (SResultRow*)((char*)pPage + pos.offset);
-      closeResultRow(pRow);
-      releaseBufPage(pResultBuf, pPage);
-    }
-
-    prepareResultListBuffer(pResultRowInfo, pTaskInfo->env);
-    if (p1 == NULL) {
-      pResult = getNewResultRow_rv(pResultBuf, groupId, pSup->resultRowSize);
-      initResultRow(pResult);
-
-      // add a new result set for a new group
-      SResultRowPosition pos = {.pageId = pResult->pageId, .offset = pResult->offset};
-      taosHashPut(pSup->pResultRowHashTable, pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes), &pos,
-                  sizeof(SResultRowPosition));
-      SResultRowCell cell = {.groupId = groupId, .pos = pos};
-      taosArrayPush(pSup->pResultRowArrayList, &cell);
-    } else {
       pResult = getResultRowByPos(pResultBuf, p1);
     }
-
-    // 2. set the new time window to be the new active time window
-    pResultRowInfo->pPosition[pResultRowInfo->size++] =
-        (SResultRowPosition){.pageId = pResult->pageId, .offset = pResult->offset};
-    pResultRowInfo->cur = (SResultRowPosition){.pageId = pResult->pageId, .offset = pResult->offset};
-    SET_RES_EXT_WINDOW_KEY(pSup->keyBuf, pData, bytes, uid, pResultRowInfo);
-    taosHashPut(pSup->pResultRowListSet, pSup->keyBuf, GET_RES_EXT_WINDOW_KEY_LEN(bytes), &pResultRowInfo->cur,
-                POINTER_BYTES);
-  } else {
-    pResult = getResultRowByPos(pResultBuf, p1);
   }
 
+    // 1. close current opened time window
+  if (pResultRowInfo->cur.pageId != -1 && ((pResult == NULL) || (pResult->pageId != pResultRowInfo->cur.pageId &&
+                                            pResult->offset != pResultRowInfo->cur.offset))) {
+    // todo extract function
+    SResultRowPosition pos = pResultRowInfo->cur;
+    SFilePage*         pPage = getBufPage(pResultBuf, pos.pageId);
+    SResultRow*        pRow = (SResultRow*)((char*)pPage + pos.offset);
+    closeResultRow(pRow);
+    releaseBufPage(pResultBuf, pPage);
+  }
+
+  // allocate a new buffer page
+  prepareResultListBuffer(pResultRowInfo, pTaskInfo->env);
+  if (pResult == NULL) {
+    pResult = getNewResultRow_rv(pResultBuf, groupId, pSup->resultRowSize);
+    initResultRow(pResult);
+
+    // add a new result set for a new group
+    SResultRowPosition pos = {.pageId = pResult->pageId, .offset = pResult->offset};
+    taosHashPut(pSup->pResultRowHashTable, pSup->keyBuf, GET_RES_WINDOW_KEY_LEN(bytes), &pos, sizeof(SResultRowPosition));
+  }
+
+  // 2. set the new time window to be the new active time window
+  pResultRowInfo->pPosition[pResultRowInfo->size++] =
+      (SResultRowPosition){.pageId = pResult->pageId, .offset = pResult->offset};
+  pResultRowInfo->cur = (SResultRowPosition){.pageId = pResult->pageId, .offset = pResult->offset};
+
   // too many time window in query
   if (pResultRowInfo->size > MAX_INTERVAL_TIME_WINDOW) {
     longjmp(pTaskInfo->env, TSDB_CODE_QRY_TOO_MANY_TIMEWINDOW);
@@ -670,7 +629,7 @@ static int32_t setResultOutputBufByKey_rv(SResultRowInfo* pResultRowInfo, int64_
                                           int32_t numOfOutput, int32_t* rowCellInfoOffset, SAggSupporter* pAggSup,
                                           SExecTaskInfo* pTaskInfo) {
   assert(win->skey <= win->ekey);
-  SResultRow* pResultRow = doSetResultOutBufByKey_rv(pAggSup->pResultBuf, pResultRowInfo, id, (char*)&win->skey,
+  SResultRow* pResultRow = doSetResultOutBufByKey(pAggSup->pResultBuf, pResultRowInfo, id, (char*)&win->skey,
                                                      TSDB_KEYSIZE, masterscan, tableGroupId, pTaskInfo, true, pAggSup);
 
   if (pResultRow == NULL) {
@@ -1073,6 +1032,8 @@ static int32_t doCreateConstantValColumnInfo(SInputColumnInfoData* pInput, SFunc
     pColInfo->info.bytes = tDataTypes[type].bytes;
 
     pInput->pData[paramIndex] = pColInfo;
+  } else {
+    pColInfo = pInput->pData[paramIndex];
   }
 
   ASSERT(!IS_VAR_DATA_TYPE(type));
@@ -1098,12 +1059,14 @@ static int32_t doSetInputDataBlock(SOperatorInfo* pOperator, SqlFunctionCtx* pCt
   int32_t code = TSDB_CODE_SUCCESS;
 
   for (int32_t i = 0; i < pOperator->numOfOutput; ++i) {
-    pCtx[i].order = order;
-    pCtx[i].size = pBlock->info.rows;
+    pCtx[i].order      = order;
+    pCtx[i].size       = pBlock->info.rows;
+    pCtx[i].pSrcBlock  = pBlock;
     pCtx[i].currentStage = MAIN_SCAN;
 
     SInputColumnInfoData* pInput = &pCtx[i].input;
     pInput->uid = pBlock->info.uid;
+    pInput->colDataAggIsSet = false;
 
     SExprInfo* pOneExpr = &pOperator->pExpr[i];
     for (int32_t j = 0; j < pOneExpr->base.numOfParams; ++j) {
@@ -1474,7 +1437,7 @@ static SArray* hashIntervalAgg(SOperatorInfo* pOperatorInfo, SResultRowInfo* pRe
 
   SArray* pUpdated = NULL;
   if (pInfo->execModel == OPTR_EXEC_MODEL_STREAM) {
-    pUpdated = taosArrayInit(4, sizeof(SResultRowPosition));
+    pUpdated = taosArrayInit(4, POINTER_BYTES);
   }
 
   int32_t step = 1;
@@ -1486,8 +1449,6 @@ static SArray* hashIntervalAgg(SOperatorInfo* pOperatorInfo, SResultRowInfo* pRe
   if (pSDataBlock->pDataBlock != NULL) {
     SColumnInfoData* pColDataInfo = taosArrayGet(pSDataBlock->pDataBlock, pInfo->primaryTsIndex);
     tsCols = (int64_t*)pColDataInfo->pData;
-    //    assert(tsCols[0] == pSDataBlock->info.window.skey && tsCols[pSDataBlock->info.rows - 1] ==
-    //           pSDataBlock->info.window.ekey);
   }
 
   int32_t startPos = ascScan ? 0 : (pSDataBlock->info.rows - 1);
@@ -1506,7 +1467,11 @@ static SArray* hashIntervalAgg(SOperatorInfo* pOperatorInfo, SResultRowInfo* pRe
   }
 
   if (pInfo->execModel == OPTR_EXEC_MODEL_STREAM) {
-    SResultRowPosition pos = {.pageId = pResult->pageId, .offset = pResult->offset};
+    SResKeyPos* pos = taosMemoryMalloc(sizeof(SResKeyPos) + sizeof(uint64_t));
+    pos->groupId = tableGroupId;
+    pos->pos     = (SResultRowPosition) {.pageId = pResult->pageId, .offset = pResult->offset};
+    *(int64_t*) pos->key = pResult->win.skey;
+
     taosArrayPush(pUpdated, &pos);
   }
 
@@ -1580,7 +1545,11 @@ static SArray* hashIntervalAgg(SOperatorInfo* pOperatorInfo, SResultRowInfo* pRe
     }
 
     if (pInfo->execModel == OPTR_EXEC_MODEL_STREAM) {
-      SResultRowPosition pos = {.pageId = pResult->pageId, .offset = pResult->offset};
+      SResKeyPos* pos = taosMemoryMalloc(sizeof(SResKeyPos) + sizeof(uint64_t));
+      pos->groupId = tableGroupId;
+      pos->pos     = (SResultRowPosition) {.pageId = pResult->pageId, .offset = pResult->offset};
+      *(int64_t*) pos->key = pResult->win.skey;
+
       taosArrayPush(pUpdated, &pos);
     }
 
@@ -1714,7 +1683,7 @@ int32_t setGroupResultOutputBuf(SOptrBasicInfo* binfo, int32_t numOfCols, char*
   SResultRowInfo* pResultRowInfo = &binfo->resultRowInfo;
   SqlFunctionCtx* pCtx = binfo->pCtx;
 
-  SResultRow* pResultRow = doSetResultOutBufByKey_rv(pBuf, pResultRowInfo, groupId, (char*)pData, bytes, true, groupId,
+  SResultRow* pResultRow = doSetResultOutBufByKey(pBuf, pResultRowInfo, groupId, (char*)pData, bytes, true, groupId,
                                                      pTaskInfo, false, pAggSup);
   assert(pResultRow != NULL);
 
@@ -1844,10 +1813,6 @@ void setBlockStatisInfo(SqlFunctionCtx* pCtx, SExprInfo* pExprInfo, SSDataBlock*
 
 // set the output buffer for the selectivity + tag query
 static int32_t setCtxTagColumnInfo(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
-  if (!isSelectivityWithTagsQuery(pCtx, numOfOutput)) {
-    return TSDB_CODE_SUCCESS;
-  }
-
   int32_t num = 0;
   int16_t tagLen = 0;
 
@@ -1874,9 +1839,8 @@ static int32_t setCtxTagColumnInfo(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
     }
   }
   if (p != NULL) {
-    p->subsidiaryRes.pCtx = pTagCtx;
-    p->subsidiaryRes.numOfCols = num;
-    p->subsidiaryRes.bufLen = tagLen;
+    p->subsidiaries.pCtx = pTagCtx;
+    p->subsidiaries.num = num;
   } else {
     taosMemoryFreeClear(pTagCtx);
   }
@@ -1903,6 +1867,9 @@ SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput,
     SqlFunctionCtx* pCtx = &pFuncCtx[i];
 
     pCtx->functionId = -1;
+    pCtx->curBufPage = -1;
+    pCtx->pExpr      = pExpr;
+
     if (pExpr->pExpr->nodeType == QUERY_NODE_FUNCTION) {
       SFuncExecEnv env = {0};
       pCtx->functionId = pExpr->pExpr->_function.pFunctNode->funcId;
@@ -1930,9 +1897,9 @@ SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput,
     pCtx->pTsOutput = NULL;
     pCtx->resDataInfo.bytes = pFunct->resSchema.bytes;
     pCtx->resDataInfo.type = pFunct->resSchema.type;
-    pCtx->order = TSDB_ORDER_ASC;
+    pCtx->order     = TSDB_ORDER_ASC;
     pCtx->start.key = INT64_MIN;
-    pCtx->end.key = INT64_MIN;
+    pCtx->end.key   = INT64_MIN;
     pCtx->numOfParams = pExpr->base.numOfParams;
 
     pCtx->param = pFunct->pParam;
@@ -1992,7 +1959,7 @@ static void* destroySqlFunctionCtx(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
     }
 
     taosVariantDestroy(&pCtx[i].tag);
-    taosMemoryFreeClear(pCtx[i].subsidiaryRes.pCtx);
+    taosMemoryFreeClear(pCtx[i].subsidiaries.pCtx);
   }
 
   taosMemoryFreeClear(pCtx);
@@ -2095,25 +2062,6 @@ static int32_t updateBlockLoadStatus(STaskAttr* pQuery, int32_t status) {
   return status;
 }
 
-static void doUpdateLastKey(STaskAttr* pQueryAttr) {
-  STimeWindow* win = &pQueryAttr->window;
-
-  size_t num = taosArrayGetSize(pQueryAttr->tableGroupInfo.pGroupList);
-  for (int32_t i = 0; i < num; ++i) {
-    SArray* p1 = taosArrayGetP(pQueryAttr->tableGroupInfo.pGroupList, i);
-
-    size_t len = taosArrayGetSize(p1);
-    for (int32_t j = 0; j < len; ++j) {
-      //      STableKeyInfo* pInfo = taosArrayGet(p1, j);
-      //
-      //      // update the new lastkey if it is equalled to the value of the old skey
-      //      if (pInfo->lastKey == win->ekey) {
-      //        pInfo->lastKey = win->skey;
-      //      }
-    }
-  }
-}
-
 // static void updateDataCheckOrder(SQInfo *pQInfo, SQueryTableReq* pQueryMsg, bool stableQuery) {
 //   STaskAttr* pQueryAttr = pQInfo->runtimeEnv.pQueryAttr;
 //
@@ -2741,7 +2689,7 @@ void setFunctionResultOutput(SOptrBasicInfo* pInfo, SAggSupporter* pSup, int32_t
 
   int64_t     tid = 0;
   int64_t     groupId = 0;
-  SResultRow* pRow = doSetResultOutBufByKey_rv(pSup->pResultBuf, pResultRowInfo, tid, (char*)&tid, sizeof(tid), true,
+  SResultRow* pRow = doSetResultOutBufByKey(pSup->pResultBuf, pResultRowInfo, tid, (char*)&tid, sizeof(tid), true,
                                                groupId, pTaskInfo, false, pSup);
 
   for (int32_t i = 0; i < pDataBlock->info.numOfCols; ++i) {
@@ -2848,6 +2796,7 @@ void setTaskStatus(SExecTaskInfo* pTaskInfo, int8_t status) {
   }
 }
 
+// todo merged with the build group result.
 void finalizeMultiTupleQueryResult(SqlFunctionCtx* pCtx, int32_t numOfOutput, SDiskbasedBuf* pBuf,
                                    SResultRowInfo* pResultRowInfo, int32_t* rowCellInfoOffset) {
   for (int32_t i = 0; i < pResultRowInfo->size; ++i) {
@@ -2882,40 +2831,36 @@ void finalizeMultiTupleQueryResult(SqlFunctionCtx* pCtx, int32_t numOfOutput, SD
   }
 }
 
+// todo merged with the build group result.
 void finalizeUpdatedResult(SqlFunctionCtx* pCtx, int32_t numOfOutput, SDiskbasedBuf* pBuf, SArray* pUpdateList,
                            int32_t* rowCellInfoOffset) {
   size_t num = taosArrayGetSize(pUpdateList);
 
   for (int32_t i = 0; i < num; ++i) {
-    SResultRowPosition* pPos = taosArrayGet(pUpdateList, i);
-
-    SFilePage*  bufPage = getBufPage(pBuf, pPos->pageId);
-    SResultRow* pRow = (SResultRow*)((char*)bufPage + pPos->offset);
+    SResKeyPos * pPos = taosArrayGetP(pUpdateList, i);
 
+    SFilePage*  bufPage = getBufPage(pBuf, pPos->pos.pageId);
+    SResultRow* pRow = (SResultRow*)((char*)bufPage + pPos->pos.offset);
+//
     for (int32_t j = 0; j < numOfOutput; ++j) {
       pCtx[j].resultInfo = getResultCell(pRow, j, rowCellInfoOffset);
-
+//
       struct SResultRowEntryInfo* pResInfo = pCtx[j].resultInfo;
-      if (isRowEntryCompleted(pResInfo) && isRowEntryInitialized(pResInfo)) {
-        continue;
-      }
-
-      if (pCtx[j].fpSet.process) {  // TODO set the dummy function.
-                                    //        pCtx[j].fpSet.finalize(&pCtx[j]);
-        pResInfo->initialized = true;
-      }
-
+//      if (isRowEntryCompleted(pResInfo) && isRowEntryInitialized(pResInfo)) {
+//        continue;
+//      }
+//
+//      if (pCtx[j].fpSet.process) {  // TODO set the dummy function.
+////        pCtx[j].fpSet.finalize(&pCtx[j]);
+//        pResInfo->initialized = true;
+//      }
+//
       if (pRow->numOfRows < pResInfo->numOfRes) {
         pRow->numOfRows = pResInfo->numOfRes;
       }
     }
 
     releaseBufPage(pBuf, bufPage);
-    /*
-     * set the number of output results for group by normal columns, the number of output rows usually is 1 except
-     * the top and bottom query
-     */
-    //    buf->numOfRows = (uint16_t)getNumOfResult(pCtx, numOfOutput);
   }
 }
 
@@ -3032,7 +2977,7 @@ void doSetTableGroupOutputBuf(SAggOperatorInfo* pAggInfo, int32_t numOfOutput, u
   int32_t*        rowCellInfoOffset = pAggInfo->binfo.rowCellInfoOffset;
 
   SResultRow* pResultRow =
-      doSetResultOutBufByKey_rv(pAggInfo->aggSup.pResultBuf, pResultRowInfo, uid, (char*)&groupId, sizeof(groupId),
+      doSetResultOutBufByKey(pAggInfo->aggSup.pResultBuf, pResultRowInfo, uid, (char*)&groupId, sizeof(groupId),
                                 true, groupId, pTaskInfo, false, &pAggInfo->aggSup);
   assert(pResultRow != NULL);
 
@@ -3062,33 +3007,6 @@ void setExecutionContext(int32_t numOfOutput, uint64_t groupId, SExecTaskInfo* p
   pAggInfo->groupId = groupId;
 }
 
-void setCtxTagForJoin(STaskRuntimeEnv* pRuntimeEnv, SqlFunctionCtx* pCtx, SExprInfo* pExprInfo, void* pTable) {
-  STaskAttr* pQueryAttr = pRuntimeEnv->pQueryAttr;
-
-  SExprBasicInfo* pExpr = &pExprInfo->base;
-  //  if (pQueryAttr->stableQuery && (pRuntimeEnv->pTsBuf != NULL) &&
-  //      (pExpr->functionId == FUNCTION_TS || pExpr->functionId == FUNCTION_PRJ) &&
-  //      (pExpr->colInfo.colIndex == PRIMARYKEY_TIMESTAMP_COL_ID)) {
-  //    assert(pExpr->numOfParams == 1);
-  //
-  //    int16_t      tagColId = (int16_t)pExprInfo->base.param[0].i;
-  //    SColumnInfo* pColInfo = doGetTagColumnInfoById(pQueryAttr->tagColList, pQueryAttr->numOfTags, tagColId);
-  //
-  //    doSetTagValueInParam(pTable, tagColId, &pCtx->tag, pColInfo->type, pColInfo->bytes);
-  //
-  //    int16_t tagType = pCtx[0].tag.nType;
-  //    if (tagType == TSDB_DATA_TYPE_BINARY || tagType == TSDB_DATA_TYPE_NCHAR) {
-  //      //qDebug("QInfo:0x%"PRIx64" set tag value for join comparison, colId:%" PRId64 ", val:%s",
-  //      GET_TASKID(pRuntimeEnv),
-  ////             pExprInfo->base.param[0].i, pCtx[0].tag.pz);
-  //    } else {
-  //      //qDebug("QInfo:0x%"PRIx64" set tag value for join comparison, colId:%" PRId64 ", val:%" PRId64,
-  //      GET_TASKID(pRuntimeEnv),
-  ////             pExprInfo->base.param[0].i, pCtx[0].tag.i);
-  //    }
-  //  }
-}
-
 /*
  * There are two cases to handle:
  *
@@ -3131,7 +3049,6 @@ void setIntervalQueryRange(STableQueryInfo* pTableQueryInfo, TSKEY key, STimeWin
 }
 
 /**
- * copyToOutputBuf support copy data in ascending/descending order
  * For interval query of both super table and table, copy the data in ascending order, since the output results are
  * ordered in SWindowResutl already. While handling the group by query for both table and super table,
  * all group result are completed already.
@@ -3159,10 +3076,10 @@ int32_t doCopyToSDataBlock(SSDataBlock* pBlock, SExprInfo* pExprInfo, SDiskbased
   }
 
   for (int32_t i = start; (i < numOfRows) && (i >= 0); i += step) {
-    SResultRowPosition* pPos = taosArrayGet(pGroupResInfo->pRows, i);
-    SFilePage*          page = getBufPage(pBuf, pPos->pageId);
+    SResKeyPos *pPos = taosArrayGetP(pGroupResInfo->pRows, i);
+    SFilePage*          page = getBufPage(pBuf, pPos->pos.pageId);
 
-    SResultRow* pRow = (SResultRow*)((char*)page + pPos->offset);
+    SResultRow* pRow = (SResultRow*)((char*)page + pPos->pos.offset);
     if (pRow->numOfRows == 0) {
       pGroupResInfo->index += 1;
       continue;
@@ -3181,7 +3098,7 @@ int32_t doCopyToSDataBlock(SSDataBlock* pBlock, SExprInfo* pExprInfo, SDiskbased
 
       pCtx[j].resultInfo = getResultCell(pRow, j, rowCellOffset);
       if (pCtx[j].fpSet.process) {
-        pCtx[j].fpSet.finalize(&pCtx[j], pBlock, slotId);
+        pCtx[j].fpSet.finalize(&pCtx[j], pBlock);
       } else {
         SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, slotId);
 
@@ -3806,9 +3723,15 @@ int32_t setSDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLoadI
   blockDataEnsureCapacity(pRes, numOfRows);
 
   if (pColList == NULL) {  // data from other sources
-    int32_t* colLen = (int32_t*)pData;
-    char*    pStart = pData + sizeof(int32_t) * numOfOutput;
+    int32_t dataLen = *(int32_t*) pData;
+    pData += sizeof(int32_t);
 
+    pRes->info.groupId = *(uint64_t*) pData;
+    pData += sizeof(uint64_t);
+
+    int32_t* colLen = (int32_t*)pData;
+
+    char* pStart = pData + sizeof(int32_t) * numOfOutput;
     for (int32_t i = 0; i < numOfOutput; ++i) {
       colLen[i] = htonl(colLen[i]);
       ASSERT(colLen[i] > 0);
@@ -3828,6 +3751,9 @@ int32_t setSDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLoadI
       }
 
       memcpy(pColInfoData->pData, pStart, colLen[i]);
+      //TODO setting this flag to true temporarily so aggregate function on stable will
+      //examine NULL value for non-primary key column
+      pColInfoData->hasNull = true;
       pStart += colLen[i];
     }
   } else {  // extract data according to pColList
@@ -3861,7 +3787,11 @@ int32_t setSDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLoadI
 
     blockDataEnsureCapacity(&block, numOfRows);
 
-    int32_t* colLen = (int32_t*)pStart;
+    int32_t dataLen = *(int32_t*) pStart;
+    uint64_t groupId = *(uint64_t*) (pStart + sizeof(int32_t));
+    pStart += sizeof(int32_t) + sizeof(uint64_t);
+
+    int32_t* colLen = (int32_t*) (pStart);
     pStart += sizeof(int32_t) * numOfCols;
 
     for (int32_t i = 0; i < numOfCols; ++i) {
@@ -3903,6 +3833,7 @@ int32_t setSDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLoadI
   }
 
   pRes->info.rows = numOfRows;
+  blockDataUpdateTsWindow(pRes);
 
   int64_t el = taosGetTimestampUs() - startTs;
 
@@ -4318,18 +4249,6 @@ static void assignExprInfo(SExprInfo* dst, const SExprInfo* src) {
   //  }
 }
 
-static SExprInfo* exprArrayDup(SArray* pExprList) {
-  size_t numOfOutput = taosArrayGetSize(pExprList);
-
-  SExprInfo* p = taosMemoryCalloc(numOfOutput, sizeof(SExprInfo));
-  for (int32_t i = 0; i < numOfOutput; ++i) {
-    SExprInfo* pExpr = taosArrayGetP(pExprList, i);
-    assignExprInfo(&p[i], pExpr);
-  }
-
-  return p;
-}
-
 // TODO merge aggregate super table
 static void appendOneRowToDataBlock(SSDataBlock* pBlock, STupleHandle* pTupleHandle) {
   for (int32_t i = 0; i < pBlock->info.numOfCols; ++i) {
@@ -4822,7 +4741,7 @@ static int32_t doOpenAggregateOptr(SOperatorInfo* pOperator) {
   finalizeMultiTupleQueryResult(pAggInfo->binfo.pCtx, pOperator->numOfOutput, pAggInfo->aggSup.pResultBuf,
                                 &pAggInfo->binfo.resultRowInfo, pAggInfo->binfo.rowCellInfoOffset);
 
-  initGroupResInfo(&pAggInfo->groupResInfo, &pAggInfo->binfo.resultRowInfo);
+  initGroupedResultInfo(&pAggInfo->groupResInfo, pAggInfo->aggSup.pResultRowHashTable, false);
   OPTR_SET_OPENED(pOperator);
   return TSDB_CODE_SUCCESS;
 }
@@ -4955,8 +4874,8 @@ bool aggDecodeResultRow(SOperatorInfo* pOperator, SAggSupporter* pSup, SOptrBasi
     initResultRow(resultRow);
     prepareResultListBuffer(&pInfo->resultRowInfo, pOperator->pTaskInfo->env);
     //    pInfo->resultRowInfo.cur = pInfo->resultRowInfo.size;
-    pInfo->resultRowInfo.pPosition[pInfo->resultRowInfo.size++] =
-        (SResultRowPosition){.pageId = resultRow->pageId, .offset = resultRow->offset};
+//    pInfo->resultRowInfo.pPosition[pInfo->resultRowInfo.size++] =
+//        (SResultRowPosition){.pageId = resultRow->pageId, .offset = resultRow->offset};
     pInfo->resultRowInfo.cur = (SResultRowPosition){.pageId = resultRow->pageId, .offset = resultRow->offset};
   }
 
@@ -5125,7 +5044,7 @@ static int32_t doOpenIntervalAgg(SOperatorInfo* pOperator) {
     STableQueryInfo* pTableQueryInfo = pInfo->pCurrent;
 
     setIntervalQueryRange(pTableQueryInfo, pBlock->info.window.skey, &pTaskInfo->window);
-    hashIntervalAgg(pOperator, &pInfo->binfo.resultRowInfo, pBlock, 0);
+    hashIntervalAgg(pOperator, &pInfo->binfo.resultRowInfo, pBlock, pBlock->info.groupId);
 
 #if 0  // test for encode/decode result info
     if(pOperator->encodeResultRow){
@@ -5147,7 +5066,7 @@ static int32_t doOpenIntervalAgg(SOperatorInfo* pOperator) {
   finalizeMultiTupleQueryResult(pInfo->binfo.pCtx, pOperator->numOfOutput, pInfo->aggSup.pResultBuf,
                                 &pInfo->binfo.resultRowInfo, pInfo->binfo.rowCellInfoOffset);
 
-  initGroupResInfo(&pInfo->groupResInfo, &pInfo->binfo.resultRowInfo);
+  initGroupedResultInfo(&pInfo->groupResInfo, pInfo->aggSup.pResultRowHashTable, true);
   OPTR_SET_OPENED(pOperator);
   return TSDB_CODE_SUCCESS;
 }
@@ -5276,7 +5195,7 @@ static SSDataBlock* doAllIntervalAgg(SOperatorInfo* pOperator, bool* newgroup) {
   setTaskStatus(pOperator->pTaskInfo, TASK_COMPLETED);
   //  finalizeQueryResult(pSliceInfo->binfo.pCtx, pOperator->numOfOutput);
 
-  initGroupResInfo(&pSliceInfo->groupResInfo, &pSliceInfo->binfo.resultRowInfo);
+//  initGroupedResultInfo(&pSliceInfo->groupResInfo, &pSliceInfo->binfo.resultRowInfo);
   //  doBuildResultDatablock(&pRuntimeEnv->groupResInfo, pRuntimeEnv, pSliceInfo->pRes);
 
   if (pSliceInfo->binfo.pRes->info.rows == 0 || !hasRemainDataInCurrentGroup(&pSliceInfo->groupResInfo)) {
@@ -5327,7 +5246,7 @@ static SSDataBlock* doSTableIntervalAgg(SOperatorInfo* pOperator, bool* newgroup
   finalizeMultiTupleQueryResult(pInfo->binfo.pCtx, pOperator->numOfOutput, pInfo->aggSup.pResultBuf,
                                 &pInfo->binfo.resultRowInfo, pInfo->binfo.rowCellInfoOffset);
 
-  initGroupResInfo(&pInfo->groupResInfo, &pInfo->binfo.resultRowInfo);
+//  initGroupedResultInfo(&pInfo->groupResInfo, &pInfo->binfo.resultRowInfo);
   OPTR_SET_OPENED(pOperator);
 
   blockDataEnsureCapacity(pInfo->binfo.pRes, pOperator->resultInfo.capacity);
@@ -5458,7 +5377,7 @@ static SSDataBlock* doStateWindowAgg(SOperatorInfo* pOperator, bool* newgroup) {
   finalizeMultiTupleQueryResult(pBInfo->pCtx, pOperator->numOfOutput, pInfo->aggSup.pResultBuf, &pBInfo->resultRowInfo,
                                 pBInfo->rowCellInfoOffset);
 
-  initGroupResInfo(&pInfo->groupResInfo, &pBInfo->resultRowInfo);
+  initGroupedResultInfo(&pInfo->groupResInfo, pInfo->aggSup.pResultRowHashTable, true);
   blockDataEnsureCapacity(pBInfo->pRes, pOperator->resultInfo.capacity);
   doBuildResultDatablock(pBInfo->pRes, &pInfo->groupResInfo, pOperator->pExpr, pInfo->aggSup.pResultBuf,
                          pBInfo->rowCellInfoOffset, pInfo->binfo.pCtx);
@@ -5510,7 +5429,7 @@ static SSDataBlock* doSessionWindowAgg(SOperatorInfo* pOperator, bool* newgroup)
   finalizeMultiTupleQueryResult(pBInfo->pCtx, pOperator->numOfOutput, pInfo->aggSup.pResultBuf, &pBInfo->resultRowInfo,
                                 pBInfo->rowCellInfoOffset);
 
-  initGroupResInfo(&pInfo->groupResInfo, &pBInfo->resultRowInfo);
+  initGroupedResultInfo(&pInfo->groupResInfo, pInfo->aggSup.pResultRowHashTable, true);
   blockDataEnsureCapacity(pBInfo->pRes, pOperator->resultInfo.capacity);
   doBuildResultDatablock(pBInfo->pRes, &pInfo->groupResInfo, pOperator->pExpr, pInfo->aggSup.pResultBuf,
                          pBInfo->rowCellInfoOffset, pInfo->binfo.pCtx);
@@ -5669,10 +5588,10 @@ int32_t doInitAggInfoSup(SAggSupporter* pAggSup, SqlFunctionCtx* pCtx, int32_t n
   pAggSup->resultRowSize = getResultRowSize(pCtx, numOfOutput);
   pAggSup->keyBuf = taosMemoryCalloc(1, keyBufSize + POINTER_BYTES + sizeof(int64_t));
   pAggSup->pResultRowHashTable = taosHashInit(10, hashFn, true, HASH_NO_LOCK);
-  pAggSup->pResultRowListSet = taosHashInit(100, hashFn, false, HASH_NO_LOCK);
-  pAggSup->pResultRowArrayList = taosArrayInit(10, sizeof(SResultRowCell));
+//  pAggSup->pResultRowListSet = taosHashInit(100, hashFn, false, HASH_NO_LOCK);
+//  pAggSup->pResultRowArrayList = taosArrayInit(10, sizeof(SResultRowCell));
 
-  if (pAggSup->keyBuf == NULL || pAggSup->pResultRowArrayList == NULL || pAggSup->pResultRowListSet == NULL ||
+  if (pAggSup->keyBuf == NULL /*|| pAggSup->pResultRowArrayList == NULL || pAggSup->pResultRowListSet == NULL*/ ||
       pAggSup->pResultRowHashTable == NULL) {
     return TSDB_CODE_OUT_OF_MEMORY;
   }
@@ -5688,8 +5607,8 @@ int32_t doInitAggInfoSup(SAggSupporter* pAggSup, SqlFunctionCtx* pCtx, int32_t n
 static void cleanupAggSup(SAggSupporter* pAggSup) {
   taosMemoryFreeClear(pAggSup->keyBuf);
   taosHashCleanup(pAggSup->pResultRowHashTable);
-  taosHashCleanup(pAggSup->pResultRowListSet);
-  taosArrayDestroy(pAggSup->pResultRowArrayList);
+//  taosHashCleanup(pAggSup->pResultRowListSet);
+//  taosArrayDestroy(pAggSup->pResultRowArrayList);
   destroyDiskbasedBuf(pAggSup->pResultBuf);
 }
 
@@ -5699,6 +5618,11 @@ int32_t initAggInfo(SOptrBasicInfo* pBasicInfo, SAggSupporter* pAggSup, SExprInf
   pBasicInfo->pRes = pResultBlock;
 
   doInitAggInfoSup(pAggSup, pBasicInfo->pCtx, numOfCols, keyBufSize, pkey);
+
+  for(int32_t i = 0; i < numOfCols; ++i) {
+    pBasicInfo->pCtx[i].pBuf = pAggSup->pResultBuf;
+  }
+
   return TSDB_CODE_SUCCESS;
 }
 
@@ -5847,11 +5771,6 @@ static void destroyProjectOperatorInfo(void* param, int32_t numOfOutput) {
   doDestroyBasicInfo(&pInfo->binfo, numOfOutput);
 }
 
-static void destroyTagScanOperatorInfo(void* param, int32_t numOfOutput) {
-  STagScanInfo* pInfo = (STagScanInfo*)param;
-  pInfo->pRes = blockDataDestroy(pInfo->pRes);
-}
-
 static void destroyOrderOperatorInfo(void* param, int32_t numOfOutput) {
   SSortOperatorInfo* pInfo = (SSortOperatorInfo*)param;
   pInfo->pDataBlock = blockDataDestroy(pInfo->pDataBlock);
@@ -5941,11 +5860,12 @@ SOperatorInfo* createIntervalOperatorInfo(SOperatorInfo* downstream, SExprInfo*
     goto _error;
   }
 
-  pInfo->order = TSDB_ORDER_ASC;
-  pInfo->interval = *pInterval;
-  pInfo->execModel = pTaskInfo->execModel;
-  pInfo->win = pTaskInfo->window;
-  pInfo->twAggSup = *pTwAggSupp;
+  pInfo->order          = TSDB_ORDER_ASC;
+  pInfo->interval       = *pInterval;
+//  pInfo->execModel      = OPTR_EXEC_MODEL_STREAM;
+  pInfo->execModel      = pTaskInfo->execModel;
+  pInfo->win            = pTaskInfo->window;
+  pInfo->twAggSup       = *pTwAggSupp;
   pInfo->primaryTsIndex = primaryTsSlotId;
 
   int32_t numOfRows = 4096;
@@ -6204,157 +6124,6 @@ _error:
   return NULL;
 }
 
-static SSDataBlock* doTagScan(SOperatorInfo* pOperator, bool* newgroup) {
-#if 0
-  SOperatorInfo* pOperator = (SOperatorInfo*) param;
-  if (pOperator->status == OP_EXEC_DONE) {
-    return NULL;
-  }
-
-  int32_t maxNumOfTables = (int32_t)pResultInfo->capacity;
-
-  STagScanInfo *pInfo = pOperator->info;
-  SSDataBlock  *pRes = pInfo->pRes;
-  *newgroup = false;
-
-  int32_t count = 0;
-  SArray* pa = GET_TABLEGROUP(pRuntimeEnv, 0);
-
-  int32_t functionId = getExprFunctionId(&pOperator->pExpr[0]);
-  if (functionId == FUNCTION_TID_TAG) { // return the tags & table Id
-    assert(pQueryAttr->numOfOutput == 1);
-
-    SExprInfo* pExprInfo = &pOperator->pExpr[0];
-    int32_t rsize = pExprInfo->base.resSchema.bytes;
-
-    count = 0;
-
-    int16_t bytes = pExprInfo->base.resSchema.bytes;
-    int16_t type  = pExprInfo->base.resSchema.type;
-
-    for(int32_t i = 0; i < pQueryAttr->numOfTags; ++i) {
-      if (pQueryAttr->tagColList[i].colId == pExprInfo->base.pColumns->info.colId) {
-        bytes = pQueryAttr->tagColList[i].bytes;
-        type = pQueryAttr->tagColList[i].type;
-        break;
-      }
-    }
-
-    SColumnInfoData* pColInfo = taosArrayGet(pRes->pDataBlock, 0);
-
-    while(pInfo->curPos < pInfo->totalTables && count < maxNumOfTables) {
-      int32_t i = pInfo->curPos++;
-      STableQueryInfo *item = taosArrayGetP(pa, i);
-
-      char *output = pColInfo->pData + count * rsize;
-      varDataSetLen(output, rsize - VARSTR_HEADER_SIZE);
-
-      output = varDataVal(output);
-      STableId* id = TSDB_TABLEID(item->pTable);
-
-      *(int16_t *)output = 0;
-      output += sizeof(int16_t);
-
-      *(int64_t *)output = id->uid;  // memory align problem, todo serialize
-      output += sizeof(id->uid);
-
-      *(int32_t *)output = id->tid;
-      output += sizeof(id->tid);
-
-      *(int32_t *)output = pQueryAttr->vgId;
-      output += sizeof(pQueryAttr->vgId);
-
-      char* data = NULL;
-      if (pExprInfo->base.pColumns->info.colId == TSDB_TBNAME_COLUMN_INDEX) {
-        data = tsdbGetTableName(item->pTable);
-      } else {
-        data = tsdbGetTableTagVal(item->pTable, pExprInfo->base.pColumns->info.colId, type, bytes);
-      }
-
-      doSetTagValueToResultBuf(output, data, type, bytes);
-      count += 1;
-    }
-
-    //qDebug("QInfo:0x%"PRIx64" create (tableId, tag) info completed, rows:%d", GET_TASKID(pRuntimeEnv), count);
-  } else if (functionId == FUNCTION_COUNT) {// handle the "count(tbname)" query
-    SColumnInfoData* pColInfo = taosArrayGet(pRes->pDataBlock, 0);
-    *(int64_t*)pColInfo->pData = pInfo->totalTables;
-    count = 1;
-
-    pOperator->status = OP_EXEC_DONE;
-    //qDebug("QInfo:0x%"PRIx64" create count(tbname) query, res:%d rows:1", GET_TASKID(pRuntimeEnv), count);
-  } else {  // return only the tags|table name etc.
-    SExprInfo* pExprInfo = &pOperator->pExpr[0];  // todo use the column list instead of exprinfo
-
-    count = 0;
-    while(pInfo->curPos < pInfo->totalTables && count < maxNumOfTables) {
-      int32_t i = pInfo->curPos++;
-
-      STableQueryInfo* item = taosArrayGetP(pa, i);
-
-      char *data = NULL, *dst = NULL;
-      int16_t type = 0, bytes = 0;
-      for(int32_t j = 0; j < pOperator->numOfOutput; ++j) {
-        // not assign value in case of user defined constant output column
-        if (TSDB_COL_IS_UD_COL(pExprInfo[j].base.pColumns->flag)) {
-          continue;
-        }
-
-        SColumnInfoData* pColInfo = taosArrayGet(pRes->pDataBlock, j);
-        type  = pExprInfo[j].base.resSchema.type;
-        bytes = pExprInfo[j].base.resSchema.bytes;
-
-        if (pExprInfo[j].base.pColumns->info.colId == TSDB_TBNAME_COLUMN_INDEX) {
-          data = tsdbGetTableName(item->pTable);
-        } else {
-          data = tsdbGetTableTagVal(item->pTable, pExprInfo[j].base.pColumns->info.colId, type, bytes);
-        }
-
-        dst  = pColInfo->pData + count * pExprInfo[j].base.resSchema.bytes;
-        doSetTagValueToResultBuf(dst, data, type, bytes);
-      }
-
-      count += 1;
-    }
-
-    if (pInfo->curPos >= pInfo->totalTables) {
-      pOperator->status = OP_EXEC_DONE;
-    }
-
-    //qDebug("QInfo:0x%"PRIx64" create tag values results completed, rows:%d", GET_TASKID(pRuntimeEnv), count);
-  }
-
-  if (pOperator->status == OP_EXEC_DONE) {
-    setTaskStatus(pOperator->pRuntimeEnv, TASK_COMPLETED);
-  }
-
-  pRes->info.rows = count;
-  return (pRes->info.rows == 0)? NULL:pInfo->pRes;
-
-#endif
-  return TSDB_CODE_SUCCESS;
-}
-
-SOperatorInfo* createTagScanOperatorInfo(STaskRuntimeEnv* pRuntimeEnv, SExprInfo* pExpr, int32_t numOfOutput) {
-  STagScanInfo* pInfo = taosMemoryCalloc(1, sizeof(STagScanInfo));
-  size_t        numOfGroup = GET_NUM_OF_TABLEGROUP(pRuntimeEnv);
-  assert(numOfGroup == 0 || numOfGroup == 1);
-
-  pInfo->curPos = 0;
-
-  SOperatorInfo* pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
-  pOperator->name = "SeqTableTagScan";
-  pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN;
-  pOperator->blockingOptr = false;
-  pOperator->status = OP_NOT_OPENED;
-  pOperator->info = pInfo;
-  pOperator->getNextFn = doTagScan;
-  pOperator->pExpr = pExpr;
-  pOperator->numOfOutput = numOfOutput;
-  pOperator->closeFn = destroyTagScanOperatorInfo;
-
-  return pOperator;
-}
 
 static int32_t getColumnIndexInSource(SQueriedTableInfo* pTableInfo, SExprBasicInfo* pExpr, SColumnInfo* pTagCols) {
   int32_t j = 0;
@@ -6562,6 +6331,9 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
 
       int32_t     numOfCols = 0;
       tsdbReaderT pDataReader = doCreateDataReader(pTableScanNode, pHandle, pTableGroupInfo, (uint64_t)queryId, taskId);
+      if (pDataReader == NULL && terrno != 0) {
+        return NULL;
+      }
 
       SArray* pColList =
           extractColMatchInfo(pScanPhyNode->pScanCols, pScanPhyNode->node.pOutputDataBlockDesc, &numOfCols);
@@ -6576,8 +6348,8 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
       };
 
       return createTableScanOperatorInfo(pDataReader, pTableScanNode->scanSeq[0] > 0 ? TSDB_ORDER_ASC : TSDB_ORDER_DESC,
-          numOfCols, pTableScanNode->dataRequired, pTableScanNode->scanSeq[0], pTableScanNode->scanSeq[1], pColList,
-          pResBlock, pScanPhyNode->node.pConditions, &interval, pTableScanNode->ratio, pTaskInfo);
+                                         numOfCols, pTableScanNode->dataRequired, pTableScanNode->scanSeq[0], pTableScanNode->scanSeq[1], pColList,
+                                         pResBlock, pScanPhyNode->node.pConditions, &interval, pTableScanNode->ratio, pTaskInfo);
     } else if (QUERY_NODE_PHYSICAL_PLAN_EXCHANGE == type) {
       SExchangePhysiNode* pExchange = (SExchangePhysiNode*)pPhyNode;
       SSDataBlock*        pResBlock = createResDataBlock(pExchange->node.pOutputDataBlockDesc);
@@ -6585,17 +6357,14 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
     } else if (QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN == type) {
       SScanPhysiNode* pScanPhyNode = (SScanPhysiNode*)pPhyNode;  // simple child table.
 
-      int32_t code = doCreateTableGroup(pHandle->meta, pScanPhyNode->tableType, pScanPhyNode->uid, pTableGroupInfo,
-                                        queryId, taskId);
+      int32_t code = doCreateTableGroup(pHandle->meta, pScanPhyNode->tableType, pScanPhyNode->uid, pTableGroupInfo, queryId, taskId);
       SArray* tableIdList = extractTableIdList(pTableGroupInfo);
 
       SSDataBlock* pResBlock = createResDataBlock(pScanPhyNode->node.pOutputDataBlockDesc);
 
       int32_t numOfCols = 0;
-      SArray* pColList =
-          extractColMatchInfo(pScanPhyNode->pScanCols, pScanPhyNode->node.pOutputDataBlockDesc, &numOfCols);
-      SOperatorInfo* pOperator =
-          createStreamScanOperatorInfo(pHandle->reader, pResBlock, pColList, tableIdList, pTaskInfo);
+      SArray* pCols = extractColMatchInfo(pScanPhyNode->pScanCols, pScanPhyNode->node.pOutputDataBlockDesc, &numOfCols);
+      SOperatorInfo* pOperator = createStreamScanOperatorInfo(pHandle->reader, pResBlock, pCols, tableIdList, pTaskInfo);
       taosArrayDestroy(tableIdList);
       return pOperator;
     } else if (QUERY_NODE_PHYSICAL_PLAN_SYSTABLE_SCAN == type) {
@@ -6621,6 +6390,9 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
   for (int32_t i = 0; i < size; ++i) {
     SPhysiNode* pChildNode = (SPhysiNode*)nodesListGetNode(pPhyNode->pChildren, i);
     ops[i] = createOperatorTree(pChildNode, pTaskInfo, pHandle, queryId, taskId, pTableGroupInfo);
+    if (ops[i] == NULL) {
+      return NULL;
+    }
   }
 
   SOperatorInfo* pOptr = NULL;
@@ -6988,8 +6760,7 @@ int32_t createExecTaskInfoImpl(SSubplan* pPlan, SExecTaskInfo** pTaskInfo, SRead
     goto _complete;
   }
 
-  STableGroupInfo group = {0};
-  (*pTaskInfo)->pRoot = createOperatorTree(pPlan->pNode, *pTaskInfo, pHandle, queryId, taskId, &group);
+  (*pTaskInfo)->pRoot = createOperatorTree(pPlan->pNode, *pTaskInfo, pHandle, queryId, taskId, &(*pTaskInfo)->tableqinfoGroupInfo);
   if (NULL == (*pTaskInfo)->pRoot) {
     code = terrno;
     goto _complete;
diff --git a/source/libs/executor/src/groupoperator.c b/source/libs/executor/src/groupoperator.c
index 4793600710..52bdbea8a5 100644
--- a/source/libs/executor/src/groupoperator.c
+++ b/source/libs/executor/src/groupoperator.c
@@ -308,7 +308,7 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator, bool* newgrou
   //  }
 
   blockDataEnsureCapacity(pRes, pOperator->resultInfo.capacity);
-  initGroupResInfo(&pInfo->groupResInfo, &pInfo->binfo.resultRowInfo);
+  initGroupedResultInfo(&pInfo->groupResInfo, pInfo->aggSup.pResultRowHashTable, false);
 
   while(1) {
     doBuildResultDatablock(pRes, &pInfo->groupResInfo, pOperator->pExpr, pInfo->aggSup.pResultBuf, pInfo->binfo.rowCellInfoOffset, pInfo->binfo.pCtx);
diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 3a9742d48a..a70e402871 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -271,9 +271,7 @@ static void setupEnvForReverseScan(STableScanInfo* pTableScanInfo, SqlFunctionCt
 static SSDataBlock* doTableScanImpl(SOperatorInfo* pOperator, bool* newgroup) {
   STableScanInfo* pTableScanInfo = pOperator->info;
 
-  SSDataBlock*     pBlock = pTableScanInfo->pResBlock;
-  STableGroupInfo* pTableGroupInfo = &pOperator->pTaskInfo->tableqinfoGroupInfo;
-
+  SSDataBlock* pBlock = pTableScanInfo->pResBlock;
   *newgroup = false;
 
   while (tsdbNextDataBlock(pTableScanInfo->dataReader)) {
@@ -284,18 +282,6 @@ static SSDataBlock* doTableScanImpl(SOperatorInfo* pOperator, bool* newgroup) {
     pTableScanInfo->numOfBlocks += 1;
     tsdbRetrieveDataBlockInfo(pTableScanInfo->dataReader, &pBlock->info);
 
-    // todo opt
-    //    if (pTableGroupInfo->numOfTables > 1 || (pRuntimeEnv->current == NULL && pTableGroupInfo->numOfTables == 1)) {
-    //      STableQueryInfo** pTableQueryInfo =
-    //          (STableQueryInfo**)taosHashGet(pTableGroupInfo->map, &pBlock->info.uid, sizeof(pBlock->info.uid));
-    //      if (pTableQueryInfo == NULL) {
-    //        break;
-    //      }
-    //
-    //      doTableQueryInfoTimeWindowCheck(pTaskInfo, *pTableQueryInfo, pTableScanInfo->order);
-    //    }
-
-    // this function never returns error?
     uint32_t status = 0;
     int32_t  code = loadDataBlock(pOperator, pTableScanInfo, pBlock, &status);
     //    int32_t  code = loadDataBlockOnDemand(pOperator->pRuntimeEnv, pTableScanInfo, pBlock, &status);
@@ -308,6 +294,8 @@ static SSDataBlock* doTableScanImpl(SOperatorInfo* pOperator, bool* newgroup) {
       continue;
     }
 
+    // reset the block to be 0 by default, this blockId is assigned by physical plan and is used by direct upstream operator.
+    pBlock->info.blockId = 0;
     return pBlock;
   }
 
@@ -405,11 +393,11 @@ SOperatorInfo* createTableScanOperatorInfo(void* pDataReader, int32_t order, int
   pOperator->name         = "TableScanOperator";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN;
   pOperator->blockingOptr = false;
-  pOperator->status = OP_NOT_OPENED;
-  pOperator->info = pInfo;
-  pOperator->numOfOutput = numOfOutput;
-  pOperator->getNextFn = doTableScan;
-  pOperator->pTaskInfo = pTaskInfo;
+  pOperator->status       = OP_NOT_OPENED;
+  pOperator->info         = pInfo;
+  pOperator->numOfOutput  = numOfOutput;
+  pOperator->getNextFn    = doTableScan;
+  pOperator->pTaskInfo    = pTaskInfo;
 
   static int32_t cost = 0;
   pOperator->cost.openCost = ++cost;
@@ -824,12 +812,12 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
     int32_t          tableNameSlotId = 1;
     SColumnInfoData* pTableNameCol = taosArrayGet(pInfo->pRes->pDataBlock, tableNameSlotId);
 
-    char*   name = NULL;
+    char*   tb = NULL;
     int32_t numOfRows = 0;
 
     char n[TSDB_TABLE_NAME_LEN] = {0};
-    while ((name = metaTbCursorNext(pInfo->pCur)) != NULL) {
-      STR_TO_VARSTR(n, name);
+    while ((tb = metaTbCursorNext(pInfo->pCur)) != NULL) {
+      STR_TO_VARSTR(n, tb);
       colDataAppend(pTableNameCol, numOfRows, n, false);
       numOfRows += 1;
       if (numOfRows >= pInfo->capacity) {
@@ -992,3 +980,167 @@ SOperatorInfo* createSysTableScanOperatorInfo(void* pSysTableReadHandle, SSDataB
 
   return pOperator;
 }
+
+static SSDataBlock* doTagScan(SOperatorInfo* pOperator, bool* newgroup) {
+#if 0
+  SOperatorInfo* pOperator = (SOperatorInfo*) param;
+  if (pOperator->status == OP_EXEC_DONE) {
+    return NULL;
+  }
+
+  int32_t maxNumOfTables = (int32_t)pResultInfo->capacity;
+
+  STagScanInfo *pInfo = pOperator->info;
+  SSDataBlock  *pRes = pInfo->pRes;
+  *newgroup = false;
+
+  int32_t count = 0;
+  SArray* pa = GET_TABLEGROUP(pRuntimeEnv, 0);
+
+  int32_t functionId = getExprFunctionId(&pOperator->pExpr[0]);
+  if (functionId == FUNCTION_TID_TAG) { // return the tags & table Id
+    assert(pQueryAttr->numOfOutput == 1);
+
+    SExprInfo* pExprInfo = &pOperator->pExpr[0];
+    int32_t rsize = pExprInfo->base.resSchema.bytes;
+
+    count = 0;
+
+    int16_t bytes = pExprInfo->base.resSchema.bytes;
+    int16_t type  = pExprInfo->base.resSchema.type;
+
+    for(int32_t i = 0; i < pQueryAttr->numOfTags; ++i) {
+      if (pQueryAttr->tagColList[i].colId == pExprInfo->base.pColumns->info.colId) {
+        bytes = pQueryAttr->tagColList[i].bytes;
+        type = pQueryAttr->tagColList[i].type;
+        break;
+      }
+    }
+
+    SColumnInfoData* pColInfo = taosArrayGet(pRes->pDataBlock, 0);
+
+    while(pInfo->curPos < pInfo->totalTables && count < maxNumOfTables) {
+      int32_t i = pInfo->curPos++;
+      STableQueryInfo *item = taosArrayGetP(pa, i);
+
+      char *output = pColInfo->pData + count * rsize;
+      varDataSetLen(output, rsize - VARSTR_HEADER_SIZE);
+
+      output = varDataVal(output);
+      STableId* id = TSDB_TABLEID(item->pTable);
+
+      *(int16_t *)output = 0;
+      output += sizeof(int16_t);
+
+      *(int64_t *)output = id->uid;  // memory align problem, todo serialize
+      output += sizeof(id->uid);
+
+      *(int32_t *)output = id->tid;
+      output += sizeof(id->tid);
+
+      *(int32_t *)output = pQueryAttr->vgId;
+      output += sizeof(pQueryAttr->vgId);
+
+      char* data = NULL;
+      if (pExprInfo->base.pColumns->info.colId == TSDB_TBNAME_COLUMN_INDEX) {
+        data = tsdbGetTableName(item->pTable);
+      } else {
+        data = tsdbGetTableTagVal(item->pTable, pExprInfo->base.pColumns->info.colId, type, bytes);
+      }
+
+      doSetTagValueToResultBuf(output, data, type, bytes);
+      count += 1;
+    }
+
+    //qDebug("QInfo:0x%"PRIx64" create (tableId, tag) info completed, rows:%d", GET_TASKID(pRuntimeEnv), count);
+  } else if (functionId == FUNCTION_COUNT) {// handle the "count(tbname)" query
+    SColumnInfoData* pColInfo = taosArrayGet(pRes->pDataBlock, 0);
+    *(int64_t*)pColInfo->pData = pInfo->totalTables;
+    count = 1;
+
+    pOperator->status = OP_EXEC_DONE;
+    //qDebug("QInfo:0x%"PRIx64" create count(tbname) query, res:%d rows:1", GET_TASKID(pRuntimeEnv), count);
+  } else {  // return only the tags|table name etc.
+    SExprInfo* pExprInfo = &pOperator->pExpr[0];  // todo use the column list instead of exprinfo
+
+    count = 0;
+    while(pInfo->curPos < pInfo->totalTables && count < maxNumOfTables) {
+      int32_t i = pInfo->curPos++;
+
+      STableQueryInfo* item = taosArrayGetP(pa, i);
+
+      char *data = NULL, *dst = NULL;
+      int16_t type = 0, bytes = 0;
+      for(int32_t j = 0; j < pOperator->numOfOutput; ++j) {
+        // not assign value in case of user defined constant output column
+        if (TSDB_COL_IS_UD_COL(pExprInfo[j].base.pColumns->flag)) {
+          continue;
+        }
+
+        SColumnInfoData* pColInfo = taosArrayGet(pRes->pDataBlock, j);
+        type  = pExprInfo[j].base.resSchema.type;
+        bytes = pExprInfo[j].base.resSchema.bytes;
+
+        if (pExprInfo[j].base.pColumns->info.colId == TSDB_TBNAME_COLUMN_INDEX) {
+          data = tsdbGetTableName(item->pTable);
+        } else {
+          data = tsdbGetTableTagVal(item->pTable, pExprInfo[j].base.pColumns->info.colId, type, bytes);
+        }
+
+        dst  = pColInfo->pData + count * pExprInfo[j].base.resSchema.bytes;
+        doSetTagValueToResultBuf(dst, data, type, bytes);
+      }
+
+      count += 1;
+    }
+
+    if (pInfo->curPos >= pInfo->totalTables) {
+      pOperator->status = OP_EXEC_DONE;
+    }
+
+    //qDebug("QInfo:0x%"PRIx64" create tag values results completed, rows:%d", GET_TASKID(pRuntimeEnv), count);
+  }
+
+  if (pOperator->status == OP_EXEC_DONE) {
+    setTaskStatus(pOperator->pRuntimeEnv, TASK_COMPLETED);
+  }
+
+  pRes->info.rows = count;
+  return (pRes->info.rows == 0)? NULL:pInfo->pRes;
+
+#endif
+  return TSDB_CODE_SUCCESS;
+}
+
+static void destroyTagScanOperatorInfo(void* param, int32_t numOfOutput) {
+  STagScanInfo* pInfo = (STagScanInfo*)param;
+  pInfo->pRes = blockDataDestroy(pInfo->pRes);
+}
+
+SOperatorInfo* createTagScanOperatorInfo(void* pReaderHandle, SExprInfo* pExpr, int32_t numOfOutput, SExecTaskInfo* pTaskInfo) {
+  STagScanInfo* pInfo = taosMemoryCalloc(1, sizeof(STagScanInfo));
+  SOperatorInfo* pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
+  if (pInfo == NULL || pOperator == NULL) {
+    goto _error;
+  }
+
+  pInfo->pReader           = pReaderHandle;
+  pInfo->curPos            = 0;
+  pOperator->name          = "TagScanOperator";
+  pOperator->operatorType  = QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN;
+  pOperator->blockingOptr  = false;
+  pOperator->status        = OP_NOT_OPENED;
+  pOperator->info          = pInfo;
+  pOperator->getNextFn     = doTagScan;
+  pOperator->pExpr         = pExpr;
+  pOperator->numOfOutput   = numOfOutput;
+  pOperator->pTaskInfo     = pTaskInfo;
+  pOperator->closeFn       = destroyTagScanOperatorInfo;
+
+  return pOperator;
+  _error:
+  taosMemoryFree(pInfo);
+  taosMemoryFree(pOperator);
+  terrno = TSDB_CODE_OUT_OF_MEMORY;
+  return NULL;
+}
diff --git a/source/libs/function/inc/builtinsimpl.h b/source/libs/function/inc/builtinsimpl.h
index 40393a4eab..0ad3730b5a 100644
--- a/source/libs/function/inc/builtinsimpl.h
+++ b/source/libs/function/inc/builtinsimpl.h
@@ -24,7 +24,7 @@ extern "C" {
 #include "functionMgt.h"
 
 bool functionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
-int32_t functionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId);
+int32_t functionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
 EFuncDataRequired countDataRequired(SFunctionNode* pFunc, STimeWindow* pTimeWindow);
 bool getCountFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
@@ -43,17 +43,17 @@ int32_t maxFunction(SqlFunctionCtx *pCtx);
 bool getAvgFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool avgFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
 int32_t avgFunction(SqlFunctionCtx* pCtx);
-int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId);
+int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
 bool getStddevFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool stddevFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
 int32_t stddevFunction(SqlFunctionCtx* pCtx);
-int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId);
+int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
 bool getPercentileFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool percentileFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
 int32_t percentileFunction(SqlFunctionCtx *pCtx);
-int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId);
+int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
 bool getDiffFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool diffFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResInfo);
@@ -65,7 +65,7 @@ int32_t lastFunction(SqlFunctionCtx *pCtx);
 
 bool getTopBotFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv);
 int32_t topFunction(SqlFunctionCtx *pCtx);
-int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId);
+int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
 #ifdef __cplusplus
 }
diff --git a/source/libs/function/inc/tudf.h b/source/libs/function/inc/tudf.h
index 158f79667b..b72905b872 100644
--- a/source/libs/function/inc/tudf.h
+++ b/source/libs/function/inc/tudf.h
@@ -42,19 +42,7 @@ enum {
   UDFC_CODE_INVALID_STATE = -5
 };
 
-typedef void *UdfcFuncHandle;
 
-/**
- * create udfd proxy, called once in process that call setupUdf/callUdfxxx/teardownUdf
- * @return error code
- */
-int32_t udfcOpen();
-
-/**
- * destroy udfd proxy
- * @return error code
- */
-int32_t udfcClose();
 
 
 /**
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index a52e39bd4f..70087ee46b 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -355,7 +355,7 @@ static int32_t translateToIso8601(SFunctionNode* pFunc, char* pErrBuf, int32_t l
     return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
   }
 
-  pFunc->node.resType = (SDataType) { .bytes = 24, .type = TSDB_DATA_TYPE_BINARY};
+  pFunc->node.resType = (SDataType) { .bytes = 64, .type = TSDB_DATA_TYPE_BINARY};
   return TSDB_CODE_SUCCESS;
 }
 
diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index 63af2fb972..0b9765ef15 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -14,7 +14,7 @@
  */
 
 #include "builtinsimpl.h"
-#include <libs/nodes/querynodes.h>
+#include "function.h"
 #include "querynodes.h"
 #include "taggfunction.h"
 #include "tdatablock.h"
@@ -44,8 +44,6 @@ typedef struct STopBotResItem {
 } STopBotResItem;
 
 typedef struct STopBotRes {
-  int32_t         pageId;
-//  int32_t   num;
   STopBotResItem *pItems;
 } STopBotRes;
 
@@ -92,18 +90,6 @@ typedef struct SDiffInfo {
     }                                                              \
   } while (0);
 
-#define DO_UPDATE_SUBSID_RES(ctx, ts)                                 \
-  do {                                                                \
-    for (int32_t _i = 0; _i < (ctx)->subsidiaryRes.numOfCols; ++_i) { \
-      SqlFunctionCtx *__ctx = (ctx)->subsidiaryRes.pCtx[_i];          \
-      if (__ctx->functionId == FUNCTION_TS_DUMMY) {                   \
-        __ctx->tag.i = (ts);                                          \
-        __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT;                     \
-      }                                                               \
-      __ctx->fpSet.process(__ctx);                                    \
-    }                                                                 \
-  } while (0)
-
 #define UPDATE_DATA(ctx, left, right, num, sign, _ts) \
   do {                                                \
     if (((left) < (right)) ^ (sign)) {                \
@@ -139,7 +125,8 @@ bool functionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo) {
   return true;
 }
 
-int32_t functionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId) {
+int32_t functionFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
+  int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
   SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
 
   SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
@@ -406,7 +393,7 @@ int32_t avgFunction(SqlFunctionCtx* pCtx) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId) {
+int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SInputColumnInfoData* pInput = &pCtx->input;
   int32_t type = pInput->pData[0]->info.type;
   SAvgRes* pAvgRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
@@ -416,7 +403,7 @@ int32_t avgFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId) {
     pAvgRes->result = pAvgRes->sum.dsum / ((double) pAvgRes->count);
   }
 
-  return functionFinalize(pCtx, pBlock, slotId);
+  return functionFinalize(pCtx, pBlock);
 }
 
 EFuncDataRequired statisDataRequired(SFunctionNode* pFunc, STimeWindow* pTimeWindow){
@@ -521,6 +508,49 @@ bool getMinmaxFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) {
   return true;
 }
 
+#define GET_TS_LIST(x)    ((TSKEY*)((x)->ptsList))
+#define GET_TS_DATA(x, y) (GET_TS_LIST(x)[(y)])
+
+#define DO_UPDATE_TAG_COLUMNS_WITHOUT_TS(ctx)                      \
+  do {                                                             \
+    for (int32_t _i = 0; _i < (ctx)->tagInfo.numOfTagCols; ++_i) { \
+      SqlFunctionCtx *__ctx = (ctx)->tagInfo.pTagCtxList[_i];      \
+      __ctx->fpSet.process(__ctx);                                 \
+    }                                                              \
+  } while (0);
+
+#define DO_UPDATE_SUBSID_RES(ctx, ts)                                \
+  do {                                                               \
+    for (int32_t _i = 0; _i < (ctx)->subsidiaries.num; ++_i) { \
+      SqlFunctionCtx* __ctx = (ctx)->subsidiaries.pCtx[_i];          \
+      if (__ctx->functionId == FUNCTION_TS_DUMMY) {                  \
+        __ctx->tag.i = (ts);                                         \
+        __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT;                    \
+      }                                                              \
+      __ctx->fpSet.process(__ctx);                                   \
+    }                                                                \
+  } while (0)
+
+#define UPDATE_DATA(ctx, left, right, num, sign, _ts) \
+  do {                                                \
+    if (((left) < (right)) ^ (sign)) {                \
+      (left) = (right);                               \
+      DO_UPDATE_SUBSID_RES(ctx, _ts);                 \
+      (num) += 1;                                     \
+    }                                                 \
+  } while (0)
+
+#define LOOPCHECK_N(val, _col, ctx, _t, _nrow, _start, sign, num)        \
+  do {                                                                   \
+    _t *d = (_t *)((_col)->pData);                                       \
+    for (int32_t i = (_start); i < (_nrow) + (_start); ++i) {            \
+      if (((_col)->hasNull) && colDataIsNull_f((_col)->nullbitmap, i)) { \
+        continue;                                                        \
+      }                                                                  \
+      TSKEY ts = (ctx)->ptsList != NULL ? GET_TS_DATA(ctx, i) : 0;       \
+      UPDATE_DATA(ctx, val, d[i], num, sign, ts);                        \
+    }                                                                    \
+  } while (0)
 
 int32_t doMinMaxHelper(SqlFunctionCtx *pCtx, int32_t isMinFunc) {
   int32_t numOfElems = 0;
@@ -564,8 +594,8 @@ int32_t doMinMaxHelper(SqlFunctionCtx *pCtx, int32_t isMinFunc) {
       int64_t val = GET_INT64_VAL(tval);
       if ((prev < val) ^ isMinFunc) {
         *(int64_t*) buf = val;
-        for (int32_t i = 0; i < (pCtx)->subsidiaryRes.numOfCols; ++i) {
-          SqlFunctionCtx* __ctx = pCtx->subsidiaryRes.pCtx[i];
+        for (int32_t i = 0; i < (pCtx)->subsidiaries.num; ++i) {
+          SqlFunctionCtx* __ctx = pCtx->subsidiaries.pCtx[i];
           if (__ctx->functionId == FUNCTION_TS_DUMMY) {  // TODO refactor
             __ctx->tag.i = key;
             __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT;
@@ -581,8 +611,8 @@ int32_t doMinMaxHelper(SqlFunctionCtx *pCtx, int32_t isMinFunc) {
       uint64_t val = GET_UINT64_VAL(tval);
       if ((prev < val) ^ isMinFunc) {
         *(uint64_t*) buf = val;
-        for (int32_t i = 0; i < (pCtx)->subsidiaryRes.numOfCols; ++i) {
-          SqlFunctionCtx* __ctx = pCtx->subsidiaryRes.pCtx[i];
+        for (int32_t i = 0; i < (pCtx)->subsidiaries.num; ++i) {
+          SqlFunctionCtx* __ctx = pCtx->subsidiaries.pCtx[i];
           if (__ctx->functionId == FUNCTION_TS_DUMMY) {  // TODO refactor
             __ctx->tag.i = key;
             __ctx->tag.nType = TSDB_DATA_TYPE_BIGINT;
@@ -797,7 +827,7 @@ int32_t stddevFunction(SqlFunctionCtx* pCtx) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId) {
+int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SInputColumnInfoData* pInput = &pCtx->input;
   int32_t type = pInput->pData[0]->info.type;
   SStddevRes* pStddevRes = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
@@ -810,7 +840,7 @@ int32_t stddevFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId
     pStddevRes->result = sqrt(pStddevRes->quadraticDSum/((double)pStddevRes->count) - avg*avg);
   }
 
-  return functionFinalize(pCtx, pBlock, slotId);
+  return functionFinalize(pCtx, pBlock);
 }
 
 bool getPercentileFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) {
@@ -923,7 +953,7 @@ int32_t percentileFunction(SqlFunctionCtx *pCtx) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId) {
+int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SVariant* pVal = &pCtx->param[1].param;
   double v = pVal->nType == TSDB_DATA_TYPE_INT ? pVal->i : pVal->d;
 
@@ -936,7 +966,7 @@ int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t sl
   }
 
   tMemBucketDestroy(pMemBucket);
-  return functionFinalize(pCtx, pBlock, slotId);
+  return functionFinalize(pCtx, pBlock);
 }
 
 bool getFirstLastFuncEnv(SFunctionNode* pFunc, SFuncExecEnv* pEnv) {
@@ -1353,15 +1383,16 @@ static STopBotRes *getTopBotOutputInfo(SqlFunctionCtx *pCtx) {
   return pRes;
 }
 
-static void doAddIntoResult(STopBotRes* pRes, int32_t maxSize, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock,
+static void doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock,
                             uint16_t type, uint64_t uid, SResultRowEntryInfo* pEntryInfo);
 
+static void saveTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STopBotResItem* pItem);
+static void copyTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STopBotResItem* pItem);
+
 int32_t topFunction(SqlFunctionCtx *pCtx) {
   int32_t numOfElems = 0;
   SResultRowEntryInfo *pResInfo = GET_RES_INFO(pCtx);
 
-  STopBotRes *pRes = getTopBotOutputInfo(pCtx);
-
 //  if ((void *)pRes->res[0] != (void *)((char *)pRes + sizeof(STopBotRes) + POINTER_BYTES * pCtx->param[0].i)) {
 //    buildTopBotStruct(pRes, pCtx);
 //  }
@@ -1381,7 +1412,7 @@ int32_t topFunction(SqlFunctionCtx *pCtx) {
     numOfElems++;
 
     char* data = colDataGetData(pCol, i);
-    doAddIntoResult(pRes, pCtx->param[1].param.i, data, i, NULL, type, pInput->uid, pResInfo);
+    doAddIntoResult(pCtx, data, i, pCtx->pSrcBlock, type, pInput->uid, pResInfo);
   }
 
   return TSDB_CODE_SUCCESS;
@@ -1414,9 +1445,11 @@ static int32_t topBotResComparFn(const void *p1, const void *p2, const void *par
   return (val1->v.d > val2->v.d) ? 1 : -1;
 }
 
+void doAddIntoResult(SqlFunctionCtx* pCtx, void* pData, int32_t rowIndex, SSDataBlock* pSrcBlock, uint16_t type,
+                     uint64_t uid, SResultRowEntryInfo* pEntryInfo) {
+  STopBotRes *pRes = getTopBotOutputInfo(pCtx);
+  int32_t maxSize = pCtx->param[1].param.i;
 
-void doAddIntoResult(STopBotRes *pRes, int32_t maxSize, void *pData, int32_t rowIndex, SSDataBlock* pSrcBlock, uint16_t type,
-    uint64_t uid, SResultRowEntryInfo* pEntryInfo) {
   SVariant val = {0};
   taosVariantCreateFromBinary(&val, pData, tDataTypes[type].bytes, type);
 
@@ -1428,22 +1461,9 @@ void doAddIntoResult(STopBotRes *pRes, int32_t maxSize, void *pData, int32_t row
     STopBotResItem* pItem = &pItems[pEntryInfo->numOfRes];
     pItem->v   = val;
     pItem->uid = uid;
-    pItem->tuplePos.pageId = -1;  // todo set the corresponding tuple data in the disk-based buffer
 
-    if (pRes->pageId == -1) {
-      SFilePage* pPage = getNewBufPage(NULL, 0, &pRes->pageId);
-      pPage->num = sizeof(SFilePage);
-
-      // keep the current row data
-      for(int32_t i = 0; i < pSrcBlock->info.numOfCols; ++i) {
-        SColumnInfoData* pCol = taosArrayGet(pSrcBlock->pDataBlock, i);
-        bool isNull = colDataIsNull_s(pCol, rowIndex);
-
-
-        colDataGetData(pCol, rowIndex);
-      }
-
-    }
+    // save the data of this tuple
+    saveTupleData(pCtx, rowIndex, pSrcBlock, pItem);
 
     // allocate the buffer and keep the data of this row into the new allocated buffer
     pEntryInfo->numOfRes++;
@@ -1452,22 +1472,100 @@ void doAddIntoResult(STopBotRes *pRes, int32_t maxSize, void *pData, int32_t row
     if ((IS_SIGNED_NUMERIC_TYPE(type) && val.i > pItems[0].v.i) ||
         (IS_UNSIGNED_NUMERIC_TYPE(type) && val.u > pItems[0].v.u) ||
         (IS_FLOAT_TYPE(type) && val.d > pItems[0].v.d)) {
+      // replace the old data and the coresponding tuple data
       STopBotResItem* pItem = &pItems[0];
       pItem->v   = val;
       pItem->uid = uid;
-      pItem->tuplePos.pageId = -1;  // todo set the corresponding tuple data in the disk-based buffer
+
+      // save the data of this tuple by over writing the old data
+      copyTupleData(pCtx, rowIndex, pSrcBlock, pItem);
 
       taosheapadjust((void *) pItems, sizeof(STopBotResItem), 0, pEntryInfo->numOfRes - 1, (const void *) &type, topBotResComparFn, NULL, false);
     }
   }
 }
 
-int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId) {
+void saveTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STopBotResItem* pItem) {
+  SFilePage* pPage = NULL;
+
+  int32_t completeRowSize = pSrcBlock->info.rowSize + pSrcBlock->info.numOfCols * sizeof(bool);
+
+  if (pCtx->curBufPage == -1) {
+    pPage = getNewBufPage(pCtx->pBuf, 0, &pCtx->curBufPage);
+    pPage->num = sizeof(SFilePage);
+  } else {
+    pPage = getBufPage(pCtx->pBuf, pCtx->curBufPage);
+    if (pPage->num + completeRowSize > getBufPageSize(pCtx->pBuf)) {
+      pPage = getNewBufPage(pCtx->pBuf, 0, &pCtx->curBufPage);
+      pPage->num = sizeof(SFilePage);
+    }
+  }
+
+  pItem->tuplePos.pageId = pCtx->curBufPage;
+
+  // keep the current row data, extract method
+  int32_t offset = 0;
+  bool*   nullList = (bool*)((char*)pPage + pPage->num);
+  char*   pStart = (char*)(nullList + sizeof(bool) * pSrcBlock->info.numOfCols);
+  for (int32_t i = 0; i < pSrcBlock->info.numOfCols; ++i) {
+    SColumnInfoData* pCol = taosArrayGet(pSrcBlock->pDataBlock, i);
+    bool             isNull = colDataIsNull_s(pCol, rowIndex);
+    if (isNull) {
+      nullList[i] = true;
+      continue;
+    }
+
+    char* p = colDataGetData(pCol, rowIndex);
+    if (IS_VAR_DATA_TYPE(pCol->info.type)) {
+      memcpy(pStart + offset, p, varDataTLen(p));
+    } else {
+      memcpy(pStart + offset, p, pCol->info.bytes);
+    }
+
+    offset += pCol->info.bytes;
+  }
+
+  pItem->tuplePos.offset = pPage->num;
+  pPage->num += completeRowSize;
+
+  setBufPageDirty(pPage, true);
+  releaseBufPage(pCtx->pBuf, pPage);
+}
+
+void copyTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, STopBotResItem* pItem) {
+  SFilePage* pPage = getBufPage(pCtx->pBuf, pItem->tuplePos.pageId);
+
+  bool* nullList = (bool*)((char*)pPage + pItem->tuplePos.offset);
+  char* pStart = (char*)(nullList + pSrcBlock->info.numOfCols * sizeof(bool));
+
+  int32_t offset = 0;
+  for(int32_t i = 0; i < pSrcBlock->info.numOfCols; ++i) {
+    SColumnInfoData* pCol = taosArrayGet(pSrcBlock->pDataBlock, i);
+    if ((nullList[i] = colDataIsNull_s(pCol, rowIndex)) == true) {
+      continue;
+    }
+
+    char* p = colDataGetData(pCol, rowIndex);
+    if (IS_VAR_DATA_TYPE(pCol->info.type)) {
+      memcpy(pStart + offset, p, varDataTLen(p));
+    } else {
+      memcpy(pStart + offset, p, pCol->info.bytes);
+    }
+
+    offset += pCol->info.bytes;
+  }
+
+  setBufPageDirty(pPage, true);
+  releaseBufPage(pCtx->pBuf, pPage);
+}
+
+int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SResultRowEntryInfo *pEntryInfo = GET_RES_INFO(pCtx);
   STopBotRes* pRes = GET_ROWCELL_INTERBUF(pEntryInfo);
   pEntryInfo->complete = true;
 
   int32_t type = pCtx->input.pData[0]->info.type;
+  int32_t slotId = pCtx->pExpr->base.resSchema.slotId;
   SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
 
   // todo assign the tag value and the corresponding row data
@@ -1476,19 +1574,45 @@ int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t slotId
     case TSDB_DATA_TYPE_INT: {
       for (int32_t i = 0; i < pEntryInfo->numOfRes; ++i) {
         STopBotResItem* pItem = &pRes->pItems[i];
-        colDataAppendInt32(pCol, currentRow++, (int32_t*)&pItem->v.i);
+        colDataAppendInt32(pCol, currentRow, (int32_t*)&pItem->v.i);
 
         int32_t pageId = pItem->tuplePos.pageId;
         int32_t offset = pItem->tuplePos.offset;
-        if (pageId != -1) {
-          // todo
+        if (pItem->tuplePos.pageId != -1) {
+          SFilePage* pPage = getBufPage(pCtx->pBuf, pageId);
+
+          bool* nullList = (bool*)((char*)pPage + offset);
+          char* pStart = (char*)(nullList + pCtx->pSrcBlock->info.numOfCols * sizeof(bool));
+
+          // todo set the offset value to optimize the performance.
+          for (int32_t j = 0; j < pCtx->subsidiaries.num; ++j) {
+            SqlFunctionCtx* pc = pCtx->subsidiaries.pCtx[j];
+
+            SFunctParam *pFuncParam = &pc->pExpr->base.pParam[0];
+            int32_t srcSlotId = pFuncParam->pCol->slotId;
+            int32_t dstSlotId = pCtx->pExpr->base.resSchema.slotId;
+
+            int32_t ps = 0;
+            for(int32_t k = 0; k < srcSlotId; ++k) {
+              SColumnInfoData* pSrcCol = taosArrayGet(pCtx->pSrcBlock->pDataBlock, k);
+              ps += pSrcCol->info.bytes;
+            }
+
+            SColumnInfoData* pDstCol = taosArrayGet(pBlock->pDataBlock, dstSlotId);
+            if (nullList[srcSlotId]) {
+              colDataAppendNULL(pDstCol, currentRow);
+            } else {
+              colDataAppend(pDstCol, currentRow, (pStart + ps), false);
+            }
+          }
         }
+
+        currentRow += 1;
       }
+
       break;
     }
   }
 
   return pEntryInfo->numOfRes;
-
-//  return functionFinalize(pCtx, pBlock, slotId);
 }
diff --git a/source/libs/function/src/udfd.c b/source/libs/function/src/udfd.c
index e4c4cb4893..11bbd6442c 100644
--- a/source/libs/function/src/udfd.c
+++ b/source/libs/function/src/udfd.c
@@ -548,7 +548,7 @@ static int32_t udfdParseArgs(int32_t argc, char *argv[]) {
 static int32_t udfdInitLog() {
   char logName[12] = {0};
   snprintf(logName, sizeof(logName), "%slog", "udfd");
-  return taosCreateLog(logName, 1, configDir, NULL, NULL, NULL, 0);
+  return taosCreateLog(logName, 1, configDir, NULL, NULL, NULL, NULL, 0);
 }
 
 void udfdCtrlAllocBufCb(uv_handle_t *handle, size_t suggested_size, uv_buf_t *buf) {
@@ -656,7 +656,7 @@ int main(int argc, char *argv[]) {
     return -1;
   }
 
-  if (taosInitCfg(configDir, NULL, NULL, NULL, 0) != 0) {
+  if (taosInitCfg(configDir, NULL, NULL, NULL, NULL, 0) != 0) {
     fnError("failed to start since read config error");
     return -1;
   }
diff --git a/source/libs/function/test/runUdf.c b/source/libs/function/test/runUdf.c
index 8e5eac538e..a8d6fbd715 100644
--- a/source/libs/function/test/runUdf.c
+++ b/source/libs/function/test/runUdf.c
@@ -31,13 +31,13 @@ static int32_t parseArgs(int32_t argc, char *argv[]) {
 static int32_t initLog() {
   char logName[12] = {0};
   snprintf(logName, sizeof(logName), "%slog", "udfc");
-  return taosCreateLog(logName, 1, configDir, NULL, NULL, NULL, 0);
+  return taosCreateLog(logName, 1, configDir, NULL, NULL, NULL, NULL, 0);
 }
 
 int main(int argc, char *argv[]) {
   parseArgs(argc, argv);
   initLog();
-  if (taosInitCfg(configDir, NULL, NULL, NULL, 0) != 0) {
+  if (taosInitCfg(configDir, NULL, NULL, NULL, NULL, 0) != 0) {
     fnError("failed to start since read config error");
     return -1;
   }
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index a2a12e84b1..01b46c7e1e 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -3711,7 +3711,9 @@ static int32_t setQuery(STranslateContext* pCxt, SQuery* pQuery) {
       return TSDB_CODE_OUT_OF_MEMORY;
     }
 
-    pQuery->precision = extractResultTsPrecision((SSelectStmt*)pQuery->pRoot);
+    if (nodeType(pQuery->pRoot) == QUERY_NODE_SELECT_STMT) {
+      pQuery->precision = extractResultTsPrecision((SSelectStmt*)pQuery->pRoot);
+    }
   }
 
   if (NULL != pCxt->pDbs) {
diff --git a/source/libs/scalar/src/scalar.c b/source/libs/scalar/src/scalar.c
index 11a76a38ea..1d99aeac91 100644
--- a/source/libs/scalar/src/scalar.c
+++ b/source/libs/scalar/src/scalar.c
@@ -489,7 +489,7 @@ EDealRes sclRewriteFunction(SNode** pNode, SScalarCtx *ctx) {
   if (fmIsUserDefinedFunc(node->funcId)) {
     return DEAL_RES_CONTINUE;
   }
-  
+
   FOREACH(tnode, node->pParameterList) {
     if (!SCL_IS_CONST_NODE(tnode)) {
       return DEAL_RES_CONTINUE;
@@ -519,8 +519,8 @@ EDealRes sclRewriteFunction(SNode** pNode, SScalarCtx *ctx) {
     res->node.resType = node->node.resType;
     int32_t type = output.columnData->info.type;
     if (IS_VAR_DATA_TYPE(type)) {
-      res->datum.p = output.columnData->pData;
-      output.columnData->pData = NULL;
+      res->datum.p = taosMemoryCalloc(res->node.resType.bytes + VARSTR_HEADER_SIZE + 1, 1);
+      memcpy(res->datum.p, output.columnData->pData, varDataTLen(output.columnData->pData));
     } else {
       memcpy(nodesGetValueFromNode(res), output.columnData->pData, tDataTypes[type].bytes);
     }
diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index 08b58cf810..28514c3605 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -1265,8 +1265,11 @@ int32_t todayFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOut
 }
 
 int32_t timezoneFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
+  char output[TD_TIMEZONE_LEN + VARSTR_HEADER_SIZE] = {0};
+  memcpy(varDataVal(output), tsTimezoneStr, TD_TIMEZONE_LEN);
+  varDataSetLen(output, strlen(tsTimezoneStr));
   for (int32_t i = 0; i < pInput->numOfRows; ++i) {
-    colDataAppend(pOutput->columnData, i, tsTimezoneStr, false);
+    colDataAppend(pOutput->columnData, i, output, false);
   }
   pOutput->numOfRows = pInput->numOfRows;
   return TSDB_CODE_SUCCESS;
diff --git a/source/libs/sync/CMakeLists.txt b/source/libs/sync/CMakeLists.txt
index cb196acc02..551849c6f2 100644
--- a/source/libs/sync/CMakeLists.txt
+++ b/source/libs/sync/CMakeLists.txt
@@ -11,7 +11,7 @@ target_link_libraries(
 
 target_include_directories(
     sync
-    PUBLIC "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    PUBLIC "${TD_SOURCE_DIR}/include/libs/sync"
     PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/inc"
 )
 
diff --git a/source/libs/sync/test/CMakeLists.txt b/source/libs/sync/test/CMakeLists.txt
index 3319a73fcf..8afe9ff2a7 100644
--- a/source/libs/sync/test/CMakeLists.txt
+++ b/source/libs/sync/test/CMakeLists.txt
@@ -199,197 +199,197 @@ target_sources(syncApplyMsgTest
 
 target_include_directories(syncTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncEnvTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncPingTimerTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIOTickQTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIOTickPingTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIOSendMsgTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIOClientTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIOServerTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRaftStoreTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncEnqTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIndexTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncInitTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncUtilTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncVotesGrantedTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncVotesRespondTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncIndexMgrTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncLogStoreTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncEntryTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRequestVoteTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRequestVoteReplyTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncAppendEntriesTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncAppendEntriesReplyTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncClientRequestTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncTimeoutTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncPingTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncPingReplyTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRpcMsgTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncPingTimerTest2
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncPingSelfTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncElectTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncEncodeTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncWriteTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncReplicateTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRefTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncLogStoreCheck
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRaftCfgTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncRespMgrTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncSnapshotTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 target_include_directories(syncApplyMsgTest
     PUBLIC
-    "${CMAKE_SOURCE_DIR}/include/libs/sync"
+    "${TD_SOURCE_DIR}/include/libs/sync"
     "${CMAKE_CURRENT_SOURCE_DIR}/../inc"
 )
 
diff --git a/source/util/src/tarray.c b/source/util/src/tarray.c
index 1c655fc2bf..2d741b18f6 100644
--- a/source/util/src/tarray.c
+++ b/source/util/src/tarray.c
@@ -476,6 +476,7 @@ void* taosDecodeArray(const void* buf, SArray** pArray, FDecode decode, int32_t
   return (void*)buf;
 }
 
+// todo remove it
 // order array<type *>
 void taosArraySortPWithExt(SArray* pArray, __ext_compar_fn_t fn, const void* param) {
   taosArrayGetSize(pArray) > 8 ? taosArrayQuickSort(pArray, fn, param) : taosArrayInsertSort(pArray, fn, param);
diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index 699a7aa080..ee4236dce5 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -18,6 +18,9 @@
 #include "taoserror.h"
 #include "tlog.h"
 #include "tutil.h"
+#include "tenv.h"
+#include "cJSON.h"
+#include "tjson.h"
 
 #define CFG_NAME_PRINT_LEN 24
 #define CFG_SRC_PRINT_LEN  12
@@ -25,6 +28,7 @@
 int32_t cfgLoadFromCfgFile(SConfig *pConfig, const char *filepath);
 int32_t cfgLoadFromEnvFile(SConfig *pConfig, const char *filepath);
 int32_t cfgLoadFromEnvVar(SConfig *pConfig);
+int32_t cfgLoadFromEnvCmd(SConfig *pConfig, const char **envCmd);
 int32_t cfgLoadFromApollUrl(SConfig *pConfig, const char *url);
 int32_t cfgSetItem(SConfig *pConfig, const char *name, const char *value, ECfgSrcType stype);
 
@@ -45,7 +49,7 @@ SConfig *cfgInit() {
   return pCfg;
 }
 
-int32_t cfgLoad(SConfig *pCfg, ECfgSrcType cfgType, const char *sourceStr) {
+int32_t cfgLoad(SConfig *pCfg, ECfgSrcType cfgType, const void *sourceStr) {
   switch (cfgType) {
     case CFG_STYPE_CFG_FILE:
       return cfgLoadFromCfgFile(pCfg, sourceStr);
@@ -55,6 +59,8 @@ int32_t cfgLoad(SConfig *pCfg, ECfgSrcType cfgType, const char *sourceStr) {
       return cfgLoadFromEnvVar(pCfg);
     case CFG_STYPE_APOLLO_URL:
       return cfgLoadFromApollUrl(pCfg, sourceStr);
+    case CFG_STYPE_ENV_CMD:
+      return cfgLoadFromEnvCmd(pCfg, (const char **)sourceStr);
     default:
       return -1;
   }
@@ -463,6 +469,8 @@ const char *cfgStypeStr(ECfgSrcType type) {
       return "arg_list";
     case CFG_STYPE_TAOS_OPTIONS:
       return "taos_options";
+    case CFG_STYPE_ENV_CMD:
+      return "env_cmd";
     default:
       return "invalid";
   }
@@ -584,12 +592,154 @@ void cfgDumpCfg(SConfig *pCfg, bool tsc, bool dump) {
 }
 
 int32_t cfgLoadFromEnvVar(SConfig *pConfig) {
-  uDebug("load from env variables not implemented yet");
+  char   *line = NULL, *name, *value, *value2, *value3;
+  int32_t olen, vlen, vlen2, vlen3;
+  ssize_t _bytes = 0;
+  TdCmdPtr pCmd = taosOpenCmd("set");
+  if (pCmd == NULL) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return -1;
+  }
+  while (!taosEOFCmd(pCmd)) {
+    name = value = value2 = value3 = NULL;
+    olen = vlen = vlen2 = vlen3 = 0;
+
+    _bytes = taosGetLineCmd(pCmd, &line);
+    if (_bytes < 0) {
+      break;
+    }
+    if(line[_bytes - 1] == '\n') line[_bytes - 1] = 0;
+    taosEnvToCfg(line, line);
+
+    paGetToken(line, &name, &olen);
+    if (olen == 0) continue;
+    name[olen] = 0;
+
+    paGetToken(name + olen + 1, &value, &vlen);
+    if (vlen == 0) continue;
+    value[vlen] = 0;
+
+    paGetToken(value + vlen + 1, &value2, &vlen2);
+    if (vlen2 != 0) {
+      value2[vlen2] = 0;
+      paGetToken(value2 + vlen2 + 1, &value3, &vlen3);
+      if (vlen3 != 0) value3[vlen3] = 0;
+    }
+
+    cfgSetItem(pConfig, name, value, CFG_STYPE_ENV_VAR);
+    if (value2 != NULL && value3 != NULL && value2[0] != 0 && value3[0] != 0 && strcasecmp(name, "dataDir") == 0) {
+      cfgSetTfsItem(pConfig, name, value, value2, value3, CFG_STYPE_ENV_VAR);
+    }
+  }
+
+  taosCloseCmd(&pCmd);
+  if (line != NULL) taosMemoryFreeClear(line);
+
+  uInfo("load from env variables cfg success");
   return 0;
 }
 
-int32_t cfgLoadFromEnvFile(SConfig *pConfig, const char *filepath) {
-  uDebug("load from env file not implemented yet");
+int32_t cfgLoadFromEnvCmd(SConfig *pConfig, const char **envCmd) {
+  char   *buf, *name, *value, *value2, *value3;
+  int32_t olen, vlen, vlen2, vlen3;
+  int32_t index = 0;
+  if (envCmd == NULL) return 0;
+  while (envCmd[index]!=NULL) {
+    buf = taosMemoryMalloc(strlen(envCmd[index]));
+    taosEnvToCfg(envCmd[index], buf);
+    index++;
+    
+    name = value = value2 = value3 = NULL;
+    olen = vlen = vlen2 = vlen3 = 0;
+
+    paGetToken(buf, &name, &olen);
+    if (olen == 0) continue;
+    name[olen] = 0;
+
+    paGetToken(name + olen + 1, &value, &vlen);
+    if (vlen == 0) continue;
+    value[vlen] = 0;
+
+    paGetToken(value + vlen + 1, &value2, &vlen2);
+    if (vlen2 != 0) {
+      value2[vlen2] = 0;
+      paGetToken(value2 + vlen2 + 1, &value3, &vlen3);
+      if (vlen3 != 0) value3[vlen3] = 0;
+    }
+
+    cfgSetItem(pConfig, name, value, CFG_STYPE_ENV_CMD);
+    if (value2 != NULL && value3 != NULL && value2[0] != 0 && value3[0] != 0 && strcasecmp(name, "dataDir") == 0) {
+      cfgSetTfsItem(pConfig, name, value, value2, value3, CFG_STYPE_ENV_CMD);
+    }
+
+    taosMemoryFree(buf);
+  }
+
+  uInfo("load from env cmd cfg success");
+  return 0;
+}
+
+int32_t cfgLoadFromEnvFile(SConfig *pConfig, const char *envFile) {
+  char   *line = NULL, *name, *value, *value2, *value3;
+  int32_t olen, vlen, vlen2, vlen3;
+  ssize_t _bytes = 0;
+
+  const char *filepath = ".env";
+  if (envFile != NULL && strlen(envFile)>0) {
+    if (!taosCheckExistFile(envFile)) {
+      uError("fial to load env file: %s", envFile);
+      return -1;
+    }
+    filepath = envFile;
+  }else {
+    if (!taosCheckExistFile(filepath)) {
+      uInfo("fial to load env file: %s", filepath);
+      return 0;
+    }
+  }
+
+  TdFilePtr pFile = taosOpenFile(filepath, TD_FILE_READ | TD_FILE_STREAM);
+  if (pFile == NULL) {
+    terrno = TAOS_SYSTEM_ERROR(errno);
+    return -1;
+  }
+
+  while (!taosEOFFile(pFile)) {
+    name = value = value2 = value3 = NULL;
+    olen = vlen = vlen2 = vlen3 = 0;
+
+    _bytes = taosGetLineFile(pFile, &line);
+    if (_bytes <= 0) {
+      break;
+    }
+    if(line[_bytes - 1] == '\n') line[_bytes - 1] = 0;
+    taosEnvToCfg(line, line);
+
+    paGetToken(line, &name, &olen);
+    if (olen == 0) continue;
+    name[olen] = 0;
+
+    paGetToken(name + olen + 1, &value, &vlen);
+    if (vlen == 0) continue;
+    value[vlen] = 0;
+
+    paGetToken(value + vlen + 1, &value2, &vlen2);
+    if (vlen2 != 0) {
+      value2[vlen2] = 0;
+      paGetToken(value2 + vlen2 + 1, &value3, &vlen3);
+      if (vlen3 != 0) value3[vlen3] = 0;
+    }
+
+    cfgSetItem(pConfig, name, value, CFG_STYPE_ENV_FILE);
+    if (value2 != NULL && value3 != NULL && value2[0] != 0 && value3[0] != 0 && strcasecmp(name, "dataDir") == 0) {
+      cfgSetTfsItem(pConfig, name, value, value2, value3, CFG_STYPE_ENV_FILE);
+    }
+  }
+
+  taosCloseFile(&pFile);
+  if (line != NULL) taosMemoryFreeClear(line);
+
+  uInfo("load from env cfg file %s success", filepath);
   return 0;
 }
 
@@ -617,11 +767,11 @@ int32_t cfgLoadFromCfgFile(SConfig *pConfig, const char *filepath) {
     olen = vlen = vlen2 = vlen3 = 0;
 
     _bytes = taosGetLineFile(pFile, &line);
-    if (_bytes < 0) {
+    if (_bytes <= 0) {
       break;
     }
 
-    line[_bytes - 1] = 0;
+    if(line[_bytes - 1] == '\n') line[_bytes - 1] = 0;
 
     paGetToken(line, &name, &olen);
     if (olen == 0) continue;
@@ -659,6 +809,192 @@ int32_t cfgLoadFromCfgFile(SConfig *pConfig, const char *filepath) {
 }
 
 int32_t cfgLoadFromApollUrl(SConfig *pConfig, const char *url) {
-  uDebug("load from apoll url not implemented yet");
+  char   *cfgLineBuf = NULL, *name, *value, *value2, *value3;
+  int32_t olen, vlen, vlen2, vlen3;
+  if (url == NULL || strlen(url) == 0) {
+    uInfo("fail to load apoll url");
+    return 0;
+  }
+  
+  char *p = strchr(url, ':');
+  if (p == NULL) {
+    uError("fail to load apoll url: %s, unknown format", url);
+    return -1;
+  }
+  p++;
+
+  if (bcmp(url, "jsonFile", 8) == 0) {
+    char *filepath = p;
+    if (!taosCheckExistFile(filepath)) {
+      uError("fial to load json file: %s", filepath);
+      return -1;
+    }
+
+    TdFilePtr pFile = taosOpenFile(filepath, TD_FILE_READ);
+    if (pFile == NULL) {
+      terrno = TAOS_SYSTEM_ERROR(errno);
+      return -1;
+    }
+    size_t fileSize = taosLSeekFile(pFile, 0, SEEK_END);
+    char *buf = taosMemoryMalloc(fileSize);
+    taosLSeekFile(pFile, 0, SEEK_SET);
+    if(taosReadFile(pFile, buf, fileSize) <= 0) {
+      taosCloseFile(&pFile);
+      uError("load json file error: %s", filepath);
+      return -1;
+    }
+    taosCloseFile(&pFile);
+    SJson* pJson = tjsonParse(buf);
+    if (NULL == pJson) {
+      const char *jsonParseError = tjsonGetError();
+      if (jsonParseError != NULL) {
+        uError("load json file parse error: %s", jsonParseError);
+      }
+      return -1;
+    }
+    taosMemoryFreeClear(buf);
+
+    int32_t jsonArraySize = tjsonGetArraySize(pJson);
+    for(int32_t i = 0; i < jsonArraySize; i++) {
+      cJSON* item = tjsonGetArrayItem(pJson, i);
+      if (item == NULL) break;
+      char *itemName = NULL, *itemValueString = NULL;
+      tjsonGetObjectName(item, &itemName);
+      tjsonGetObjectName(item, &itemName);
+      tjsonGetObjectValueString(item, &itemValueString);
+      if (itemValueString != NULL && itemName != NULL) {
+        size_t itemNameLen = strlen(itemName);
+        size_t itemValueStringLen = strlen(itemValueString);
+        cfgLineBuf = taosMemoryMalloc(itemNameLen + itemValueStringLen + 2);
+        memcpy(cfgLineBuf, itemName, itemNameLen);
+        cfgLineBuf[itemNameLen] = ' ';
+        memcpy(&cfgLineBuf[itemNameLen+1], itemValueString, itemValueStringLen);
+        cfgLineBuf[itemNameLen + itemValueStringLen + 1] = '\0';
+
+        paGetToken(cfgLineBuf, &name, &olen);
+        if (olen == 0) continue;
+        name[olen] = 0;
+
+        paGetToken(name + olen + 1, &value, &vlen);
+        if (vlen == 0) continue;
+        value[vlen] = 0;
+
+        paGetToken(value + vlen + 1, &value2, &vlen2);
+        if (vlen2 != 0) {
+          value2[vlen2] = 0;
+          paGetToken(value2 + vlen2 + 1, &value3, &vlen3);
+          if (vlen3 != 0) value3[vlen3] = 0;
+        }
+        cfgSetItem(pConfig, name, value, CFG_STYPE_APOLLO_URL);
+        if (value2 != NULL && value3 != NULL && value2[0] != 0 && value3[0] != 0 && strcasecmp(name, "dataDir") == 0) {
+          cfgSetTfsItem(pConfig, name, value, value2, value3, CFG_STYPE_APOLLO_URL);
+        }
+      }
+    }
+    tjsonDelete(pJson);
+
+  // } else if (bcmp(url, "jsonUrl", 7) == 0) {
+  // } else if (bcmp(url, "etcdUrl", 7) == 0) {
+  } else {
+    uError("Unsupported url: %s", url);
+    return -1;
+  }
+
+  uInfo("load from apoll url not implemented yet");
   return 0;
 }
+
+int32_t cfgGetApollUrl(const char **envCmd, const char *envFile, char* apolloUrl) {
+  int32_t index = 0;
+  if (envCmd == NULL) return 0;
+  while (envCmd[index]!=NULL) {
+    if (bcmp(envCmd[index], "TAOS_APOLLO_URL", 14) == 0) {
+      char *p = strchr(envCmd[index], '=');
+      if (p != NULL) {
+        p++;
+        if (*p == '\'') {
+          p++;
+          p[strlen(p)-1] = '\0';
+        }
+        memcpy(apolloUrl, p, TMIN(strlen(p)+1,PATH_MAX));
+        uInfo("get apollo url from env cmd success");
+        return 0;
+      }
+    }
+    index++;
+  }
+
+  char   *line = NULL;
+  ssize_t _bytes = 0;
+  TdCmdPtr pCmd = taosOpenCmd("set");
+  if (pCmd != NULL) {
+    while (!taosEOFCmd(pCmd)) {
+      _bytes = taosGetLineCmd(pCmd, &line);
+      if (_bytes < 0) {
+        break;
+      }
+      if(line[_bytes - 1] == '\n') line[_bytes - 1] = 0;
+      if (bcmp(line, "TAOS_APOLLO_URL", 14) == 0) {
+        char *p = strchr(line, '=');
+        if (p != NULL) {
+          p++;
+          if (*p == '\'') {
+            p++;
+            p[strlen(p)-1] = '\0';
+          }
+          memcpy(apolloUrl, p, TMIN(strlen(p)+1,PATH_MAX));
+          uInfo("get apollo url from env variables success, apolloUrl=%s",apolloUrl);
+          taosCloseCmd(&pCmd);
+          if (line != NULL) taosMemoryFreeClear(line);
+          return 0;
+        }
+      }
+    }
+    taosCloseCmd(&pCmd);
+    if (line != NULL) taosMemoryFreeClear(line);
+  }
+
+  const char *filepath = ".env";
+  if (envFile != NULL && strlen(envFile)>0) {
+    if (!taosCheckExistFile(envFile)) {
+      uError("fial to load env file: %s", envFile);
+      return -1;
+    }
+    filepath = envFile;
+  }else {
+    if (!taosCheckExistFile(filepath)) {
+      uInfo("fial to load env file: %s", filepath);
+      return 0;
+    }
+  }
+  TdFilePtr pFile = taosOpenFile(filepath, TD_FILE_READ | TD_FILE_STREAM);
+  if (pFile != NULL) {
+    while (!taosEOFFile(pFile)) {
+      _bytes = taosGetLineFile(pFile, &line);
+      if (_bytes <= 0) {
+        break;
+      }
+      if(line[_bytes - 1] == '\n') line[_bytes - 1] = 0;
+      if (bcmp(line, "TAOS_APOLLO_URL", 14) == 0) {
+        char *p = strchr(line, '=');
+        if (p != NULL) {
+          p++;
+          if (*p == '\'') {
+            p++;
+            p[strlen(p)-1] = '\0';
+          }
+          memcpy(apolloUrl, p, TMIN(strlen(p)+1,PATH_MAX));
+          taosCloseFile(&pFile);
+          if (line != NULL) taosMemoryFreeClear(line);
+          uInfo("get apollo url from env file success");
+          return 0;
+        }
+      }
+    }
+    taosCloseFile(&pFile);
+    if (line != NULL) taosMemoryFreeClear(line);
+  }
+
+  uInfo("fail get apollo url from cmd env file");
+  return -1;
+}
\ No newline at end of file
diff --git a/source/util/src/tenv.c b/source/util/src/tenv.c
new file mode 100644
index 0000000000..e717e82c5b
--- /dev/null
+++ b/source/util/src/tenv.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _DEFAULT_SOURCE
+#include "tenv.h"
+#include "tconfig.h"
+
+static char toLowChar(char c) { return (c > 'Z' || c < 'A' ? c : (c - 'A' + 'a')); }
+
+int32_t taosEnvNameToCfgName(const char *envNameStr, char *cfgNameStr, int32_t cfgNameMaxLen) {
+  if (envNameStr == NULL || cfgNameStr == NULL) return -1;
+  char *p = cfgNameStr;
+  if (envNameStr[0] != 'T' || envNameStr[1] != 'A' || envNameStr[2] != 'O' || envNameStr[3] != 'S' ||
+      envNameStr[4] != '_') {
+    // if(p != envNameStr) strncpy(p, envNameStr, cfgNameMaxLen - 1);
+    // p[cfgNameMaxLen - 1] = '\0';
+    // return strlen(cfgNameStr);
+    cfgNameStr[0] = '\0';
+    return -1;
+  }
+  envNameStr += 5;
+  if (*envNameStr != '\0') {
+    *p = toLowChar(*envNameStr);
+    p++;
+    envNameStr++;
+  }
+
+  for (size_t i = 1; i < cfgNameMaxLen && *envNameStr != '\0'; i++) {
+    if (*envNameStr == '_') {
+      envNameStr++;
+      *p = *envNameStr;
+      if (*envNameStr == '\0') break;
+    } else {
+      *p = toLowChar(*envNameStr);
+    }
+    p++;
+    envNameStr++;
+  }
+
+  *p = '\0';
+  return strlen(cfgNameStr);
+}
+
+int32_t taosEnvToCfg(const char *envStr, char *cfgStr) {
+  if (envStr == NULL && cfgStr == NULL) {
+    return -1;
+  }
+  if (cfgStr != envStr) strcpy(cfgStr, envStr);
+  char *p = strchr(cfgStr, '=');
+  
+  if (p != NULL) {
+    char buf[CFG_NAME_MAX_LEN];
+    if (*(p+1) == '\'') {
+      *(p+1)= ' ';
+      char *pEnd = &cfgStr[strlen(cfgStr)-1];
+      if (*pEnd == '\'') *pEnd = '\0';
+    }
+    *p = '\0';
+    int32_t cfgNameLen = taosEnvNameToCfgName(cfgStr, buf, CFG_NAME_MAX_LEN);
+    if (cfgNameLen > 0) {
+      memcpy(cfgStr, buf, cfgNameLen);
+      memset(&cfgStr[cfgNameLen], ' ', p - cfgStr - cfgNameLen + 1);
+    }
+  }
+  return strlen(cfgStr);
+}
\ No newline at end of file
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 9332cb481e..399a2255ac 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -258,7 +258,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_COLUMN_ALREADY_EXIST,     "Column already exists
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_COLUMN_NOT_EXIST,         "Column does not exist")
 
 // mnode-infoSchema
-TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_INFOS_TBL,        "Invalid information schema table name")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_SYS_TABLENAME,    "Invalid system table name")
 
 
 // mnode-func
@@ -403,6 +403,9 @@ TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INVALID_CHECKSUM,         "Invalid msg checksum"
 TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INVALID_MSGLEN,           "Invalid msg length")
 TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INVALID_MSGTYPE,          "Invalid msg type")
 
+TAOS_DEFINE_ERROR(TSDB_CODE_SYN_NOT_LEADER,               "Sync not leader")
+TAOS_DEFINE_ERROR(TSDB_CODE_SYN_INTERNAL_ERROR,           "Sync internal error")
+
 // wal
 TAOS_DEFINE_ERROR(TSDB_CODE_WAL_APP_ERROR,                "Unexpected generic error in wal")
 TAOS_DEFINE_ERROR(TSDB_CODE_WAL_FILE_CORRUPTED,           "WAL file is corrupted")
diff --git a/source/util/src/tjson.c b/source/util/src/tjson.c
index 0b9727e0bf..558c2258f4 100644
--- a/source/util/src/tjson.c
+++ b/source/util/src/tjson.c
@@ -144,6 +144,22 @@ char* tjsonToUnformattedString(const SJson* pJson) { return cJSON_PrintUnformatt
 
 SJson* tjsonGetObjectItem(const SJson* pJson, const char* pName) { return cJSON_GetObjectItem(pJson, pName); }
 
+int32_t tjsonGetObjectName(const SJson* pJson, char** pName) {
+  *pName = ((cJSON*)pJson)->string;
+  if (NULL == *pName) {
+    return TSDB_CODE_FAILED;
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t tjsonGetObjectValueString(const SJson* pJson, char** pValueString) {
+  *pValueString = ((cJSON*)pJson)->valuestring;
+  if (NULL == *pValueString) {
+    return TSDB_CODE_FAILED;
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t tjsonGetStringValue(const SJson* pJson, const char* pName, char* pVal) {
   char* p = cJSON_GetStringValue(tjsonGetObjectItem((cJSON*)pJson, pName));
   if (NULL == p) {
@@ -309,4 +325,6 @@ bool tjsonValidateJson(const char *jIn) {
     }
   }
   return true;
-}
\ No newline at end of file
+}
+
+const char* tjsonGetError() { return cJSON_GetErrorPtr(); }
\ No newline at end of file
diff --git a/source/util/test/CMakeLists.txt b/source/util/test/CMakeLists.txt
index d98f9f677d..3c52d52d50 100644
--- a/source/util/test/CMakeLists.txt
+++ b/source/util/test/CMakeLists.txt
@@ -31,7 +31,7 @@ ENDIF()
 #    TARGET_LINK_LIBRARIES(trefTest util common)
 #ENDIF ()
 
-INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/util/inc)
+INCLUDE_DIRECTORIES(${TD_SOURCE_DIR}/src/util/inc)
 
 # freelistTest
 add_executable(freelistTest "")
diff --git a/source/util/test/cfgTest.cpp b/source/util/test/cfgTest.cpp
index 712fb2d09a..cd13ebe8ae 100644
--- a/source/util/test/cfgTest.cpp
+++ b/source/util/test/cfgTest.cpp
@@ -32,6 +32,7 @@ TEST_F(CfgTest, 01_Str) {
   EXPECT_STREQ(cfgStypeStr(CFG_STYPE_CFG_FILE), "cfg_file");
   EXPECT_STREQ(cfgStypeStr(CFG_STYPE_ENV_FILE), "env_file");
   EXPECT_STREQ(cfgStypeStr(CFG_STYPE_ENV_VAR), "env_var");
+  EXPECT_STREQ(cfgStypeStr(CFG_STYPE_ENV_CMD), "env_cmd");
   EXPECT_STREQ(cfgStypeStr(CFG_STYPE_APOLLO_URL), "apollo_url");
   EXPECT_STREQ(cfgStypeStr(CFG_STYPE_ARG_LIST), "arg_list");
   EXPECT_STREQ(cfgStypeStr(ECfgSrcType(1024)), "invalid");
diff --git a/tests/script/sh/massiveTable/compileVersion.sh b/tests/script/sh/massiveTable/compileVersion.sh
index dcd1f8aeea..6b45e98ea3 100755
--- a/tests/script/sh/massiveTable/compileVersion.sh
+++ b/tests/script/sh/massiveTable/compileVersion.sh
@@ -57,7 +57,8 @@ function compileTDengineVersion() {
     
     cd ${debugDir}
     cmake ..
-    make -j24    
+    make -j24   
+    make install
 }
 ########################################################################################
 ###############################  main process ##########################################
@@ -67,20 +68,5 @@ cd ${projectDir}
 gitPullBranchInfo $TDengineBrVer
 compileTDengineVersion
 
-taos_dir=${projectDir}/debug/build/bin
-taosd_dir=${projectDir}/debug/build/bin
-exec_process_dir=${projectDir}/debug/build/bin
-
-rm -f /usr/bin/taos
-rm -f /usr/bin/taosd
-rm -f /usr/bin/create_table
-rm -f /usr/bin/tmq_demo
-rm -f /usr/bin/tmq_sim
-
-ln -s $taos_dir/taos /usr/bin/taos
-ln -s $taosd_dir/taosd /usr/bin/taosd
-ln -s $exec_process_dir/create_table /usr/bin/create_table
-ln -s $exec_process_dir/tmq_demo /usr/bin/tmq_demo
-ln -s $exec_process_dir/tmq_sim /usr/bin/tmq_sim
 
 
diff --git a/tests/script/tsim/parser/groupby-basic.sim b/tests/script/tsim/parser/groupby-basic.sim
index f073200a05..4d6b33612f 100644
--- a/tests/script/tsim/parser/groupby-basic.sim
+++ b/tests/script/tsim/parser/groupby-basic.sim
@@ -115,19 +115,19 @@ endi
 if $data00 != 10 then
  return -1
 endi
-if $data01 != 0 then
-  return -1
-endi
 if $data10 != 10 then
   return -1
 endi
-if $data11 != 1 then
-  return -1
-endi
 if $data90 != 10 then
   return -1
 endi
-if $data91 != 9 then
+if $data01 != 7 then
+  return -1
+endi
+if $data11 != 6 then
+  return -1
+endi
+if $data91 != 3 then
   return -1
 endi
 
@@ -143,16 +143,16 @@ if $row != 10 then
   return -1
 endi
 
-if $data00 != @22-01-01 00:00:00.000@ then
+if $data00 != @22-01-01 00:00:00.007@ then
   return -1
 endi
-if $data01 != 0 then
+if $data01 != 7 then
   return -1
 endi
-if $data90 != @22-01-01 00:00:00.009@ then
+if $data90 != @22-01-01 00:00:00.003@ then
   return -1
 endi
-if $data91 != 9 then
+if $data91 != 3 then
   return -1
 endi
 
diff --git a/tests/script/tsim/stable/disk.sim b/tests/script/tsim/stable/disk.sim
index 97ef779ff2..c1ced6ae10 100644
--- a/tests/script/tsim/stable/disk.sim
+++ b/tests/script/tsim/stable/disk.sim
@@ -53,6 +53,7 @@ endi
 sql select count(tbcol) from $mt
 print select count(tbcol) from $mt ===> $data00
 if $data00 != $totalNum then
+  print expect $totalNum , actual: $data00
   return -1
 endi
 
diff --git a/tests/tsim/src/simSystem.c b/tests/tsim/src/simSystem.c
index 5bbcceada5..69f15a164e 100644
--- a/tests/tsim/src/simSystem.c
+++ b/tests/tsim/src/simSystem.c
@@ -28,8 +28,8 @@ char     simScriptDir[PATH_MAX] = {0};
 extern bool simExecSuccess;
 
 int32_t simInitCfg() {
-  taosCreateLog("simlog", 1, configDir, NULL, NULL, NULL, 1);
-  taosInitCfg(configDir, NULL, NULL, NULL, 1);
+  taosCreateLog("simlog", 1, configDir, NULL, NULL, NULL, NULL, 1);
+  taosInitCfg(configDir, NULL, NULL, NULL, NULL, 1);
 
   SConfig *pCfg = taosGetCfg();
   simDebugFlag = cfgGetItem(pCfg, "simDebugFlag")->i32;
diff --git a/tools/shell/CMakeLists.txt b/tools/shell/CMakeLists.txt
index 3b22b30852..284693795e 100644
--- a/tools/shell/CMakeLists.txt
+++ b/tools/shell/CMakeLists.txt
@@ -3,7 +3,7 @@ aux_source_directory(src SHELL_SRC)
 add_executable(shell ${SHELL_SRC})
 target_link_libraries(
     shell
-    PUBLIC taos_static
+    PUBLIC taos
     PRIVATE os common transport util
 )
 target_include_directories(
diff --git a/tools/shell/src/shellCommand.c b/tools/shell/src/shellCommand.c
index c34ee7a22c..fcdbf2d020 100644
--- a/tools/shell/src/shellCommand.c
+++ b/tools/shell/src/shellCommand.c
@@ -395,7 +395,7 @@ void shellClearScreen(int32_t ecmd_pos, int32_t cursor_pos) {
 void shellShowOnScreen(SShellCmd *cmd) {
   struct winsize w;
   if (ioctl(0, TIOCGWINSZ, &w) < 0 || w.ws_col == 0 || w.ws_row == 0) {
-    fprintf(stderr, "No stream device\n");
+    // fprintf(stderr, "No stream device\n");
     w.ws_col = 120;
     w.ws_row = 30;
   }