diff --git a/include/client/taos.h b/include/client/taos.h
index 5bb528bd7f..b4e5a41ccf 100644
--- a/include/client/taos.h
+++ b/include/client/taos.h
@@ -194,6 +194,7 @@ DLL_EXPORT int         taos_errno(TAOS_RES *tres);
 
 DLL_EXPORT void taos_query_a(TAOS *taos, const char *sql, __taos_async_fn_t fp, void *param);
 DLL_EXPORT void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param);
+DLL_EXPORT void taos_fetch_raw_block_a(TAOS_RES* res, __taos_async_fn_t fp, void* param);
 
 // Shuduo: temporary enable for app build
 #if 1
diff --git a/include/libs/function/functionMgt.h b/include/libs/function/functionMgt.h
index e6512b5bac..77376a05d9 100644
--- a/include/libs/function/functionMgt.h
+++ b/include/libs/function/functionMgt.h
@@ -127,6 +127,8 @@ typedef enum EFunctionType {
   FUNCTION_TYPE_APERCENTILE_MERGE,
   FUNCTION_TYPE_SPREAD_PARTIAL,
   FUNCTION_TYPE_SPREAD_MERGE,
+  FUNCTION_TYPE_HISTOGRAM_PARTIAL,
+  FUNCTION_TYPE_HISTOGRAM_MERGE,
 
   // user defined funcion
   FUNCTION_TYPE_UDF = 10000
diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index ddd7e1cd02..6b5eb3b491 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -339,6 +339,7 @@ typedef struct {
   int32_t sourceTaskId;
   int32_t sourceVg;
   int32_t sourceChildId;
+  int32_t upstreamNodeId;
 #if 0
   int64_t sourceVer;
 #endif
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 3a6f3badc0..6aa83e9575 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -171,6 +171,7 @@ typedef struct SReqResultInfo {
   uint32_t       current;
   bool           completed;
   int32_t        precision;
+  bool           convertUcs4;
   int32_t        payloadLen;
 } SReqResultInfo;
 
@@ -222,7 +223,7 @@ typedef struct SSyncQueryParam {
   SRequestObj* pRequest;
 } SSyncQueryParam;
 
-void*   doAsyncFetchRow(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
+void*   doAsyncFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
 void*   doFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4);
 
 void    doSetOneRowPtr(SReqResultInfo* pResultInfo);
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 75e1884360..171f06c257 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -191,6 +191,8 @@ void *createRequest(STscObj *pObj, int32_t type) {
   pRequest->requestId = generateRequestId();
   pRequest->metric.start = taosGetTimestampUs();
 
+  pRequest->body.resInfo.convertUcs4 = true;  // convert ucs4 by default
+
   pRequest->type = type;
   pRequest->pTscObj = pObj;
   pRequest->msgBuf = taosMemoryCalloc(1, ERROR_MSG_BUF_DEFAULT_SIZE);
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index e15624bc0d..9025121854 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -1114,7 +1114,7 @@ static void syncFetchFn(void* param, TAOS_RES* res, int32_t numOfRows) {
   tsem_post(&pParam->sem);
 }
 
-void* doAsyncFetchRow(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4) {
+void* doAsyncFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUcs4) {
   assert(pRequest != NULL);
 
   SReqResultInfo* pResultInfo = &pRequest->body.resInfo;
@@ -1126,6 +1126,10 @@ void* doAsyncFetchRow(SRequestObj* pRequest, bool setupOneRowPtr, bool convertUc
     }
 
     SSyncQueryParam* pParam = pRequest->body.param;
+
+    // convert ucs4 to native multi-bytes string
+    pResultInfo->convertUcs4 = convertUcs4;
+
     taos_fetch_rows_a(pRequest, syncFetchFn, pParam);
     tsem_wait(&pParam->sem);
   }
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 1a1925e244..5e442c4bf1 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -219,14 +219,13 @@ TAOS_ROW taos_fetch_row(TAOS_RES *res) {
 
   if (TD_RES_QUERY(res)) {
     SRequestObj *pRequest = (SRequestObj *)res;
+#if SYNC_ON_TOP_OF_ASYNC
+    return doAsyncFetchRows(pRequest, true, true);
+#else
     if (pRequest->type == TSDB_SQL_RETRIEVE_EMPTY_RESULT || pRequest->type == TSDB_SQL_INSERT ||
         pRequest->code != TSDB_CODE_SUCCESS || taos_num_fields(res) == 0) {
       return NULL;
     }
-
-#if SYNC_ON_TOP_OF_ASYNC
-    return doAsyncFetchRow(pRequest, true, true);
-#else
     return doFetchRows(pRequest, true, true);
 #endif
 
@@ -489,6 +488,7 @@ int taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows) {
   if (res == NULL) {
     return 0;
   }
+
   if (TD_RES_QUERY(res)) {
     SRequestObj *pRequest = (SRequestObj *)res;
 
@@ -501,7 +501,7 @@ int taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows) {
     }
 
 #if SYNC_ON_TOP_OF_ASYNC
-    doAsyncFetchRow(pRequest, false, true);
+    doAsyncFetchRows(pRequest, false, true);
 #else
     doFetchRows(pRequest, true, true);
 #endif
@@ -552,7 +552,11 @@ int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
     return 0;
   }
 
+#if SYNC_ON_TOP_OF_ASYNC
+  doAsyncFetchRows(pRequest, false, false);
+#else
   doFetchRows(pRequest, false, false);
+#endif
 
   SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
 
@@ -771,11 +775,11 @@ static void fetchCallback(void* pResult, void* param, int32_t code) {
   }
 
   if (pRequest->code != TSDB_CODE_SUCCESS) {
-    pRequest->code = code;
     pRequest->body.fetchFp(pRequest->body.param, pRequest, 0);
+    return;
   }
 
-  pRequest->code = setQueryResultFromRsp(&pRequest->body.resInfo, (SRetrieveTableRsp*)pResultInfo->pData, true, false);
+  pRequest->code = setQueryResultFromRsp(pResultInfo, (SRetrieveTableRsp*)pResultInfo->pData, pResultInfo->convertUcs4, false);
   if (pRequest->code != TSDB_CODE_SUCCESS) {
     pResultInfo->numOfRows = 0;
     pRequest->code = code;
@@ -815,6 +819,13 @@ void taos_fetch_rows_a(TAOS_RES *res, __taos_async_fn_t fp, void *param) {
   schedulerAsyncFetchRows(pRequest->body.queryJob, fetchCallback, pRequest);
 }
 
+void taos_fetch_raw_block_a(TAOS_RES* res, __taos_async_fn_t fp, void* param) {
+  ASSERT(res != NULL && fp != NULL);
+  SRequestObj *pRequest = res;
+  pRequest->body.resInfo.convertUcs4 = false;
+  taos_fetch_rows_a(res, fp, param);
+}
+
 TAOS_SUB *taos_subscribe(TAOS *taos, int restart, const char *topic, const char *sql, TAOS_SUBSCRIBE_CALLBACK fp,
                          void *param, int interval) {
   // TODO
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index cccb1fa6d0..b5011a19a2 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -494,7 +494,6 @@ int32_t tmqHandleAllDelayedTask(tmq_t* tmq) {
       tmqAskEp(tmq, true);
       taosTmrReset(tmqAssignDelayedHbTask, 1000, tmq, tmqMgmt.timer, &tmq->hbTimer);
     } else if (*pTaskType == TMQ_DELAYED_TASK__COMMIT) {
-      /*tmq_commit(tmq, NULL, true);*/
       tmqCommitInner(tmq, NULL, 1, 1, tmq->commitCb, tmq->commitCbUserParam);
       taosTmrReset(tmqAssignDelayedCommitTask, tmq->autoCommitInterval, tmq, tmqMgmt.timer, &tmq->commitTimer);
     } else if (*pTaskType == TMQ_DELAYED_TASK__REPORT) {
@@ -667,94 +666,6 @@ FAIL:
 
 tmq_resp_err_t tmq_commit(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, int32_t async) {
   return tmqCommitInner(tmq, offsets, 0, async, tmq->commitCb, tmq->commitCbUserParam);
-#if 0
-  // TODO: add read write lock
-  SRequestObj*   pRequest = NULL;
-  tmq_resp_err_t resp = TMQ_RESP_ERR__SUCCESS;
-  // build msg
-  // send to mnode
-  SMqCMCommitOffsetReq req;
-  SArray*              pOffsets = NULL;
-
-  if (offsets == NULL) {
-    pOffsets = taosArrayInit(0, sizeof(SMqOffset));
-    for (int i = 0; i < taosArrayGetSize(tmq->clientTopics); i++) {
-      SMqClientTopic* pTopic = taosArrayGet(tmq->clientTopics, i);
-      for (int j = 0; j < taosArrayGetSize(pTopic->vgs); j++) {
-        SMqClientVg* pVg = taosArrayGet(pTopic->vgs, j);
-        SMqOffset    offset;
-        strcpy(offset.topicName, pTopic->topicName);
-        strcpy(offset.cgroup, tmq->groupId);
-        offset.vgId = pVg->vgId;
-        offset.offset = pVg->currentOffset;
-        taosArrayPush(pOffsets, &offset);
-      }
-    }
-    req.num = pOffsets->size;
-    req.offsets = pOffsets->pData;
-  } else {
-    req.num = taosArrayGetSize(&offsets->container);
-    req.offsets = (SMqOffset*)offsets->container.pData;
-  }
-
-  SEncoder encoder;
-
-  tEncoderInit(&encoder, NULL, 0);
-  tEncodeSMqCMCommitOffsetReq(&encoder, &req);
-  int32_t tlen = encoder.pos;
-  void*   buf = taosMemoryMalloc(tlen);
-  if (buf == NULL) {
-    tEncoderClear(&encoder);
-    return -1;
-  }
-  tEncoderClear(&encoder);
-
-  tEncoderInit(&encoder, buf, tlen);
-  tEncodeSMqCMCommitOffsetReq(&encoder, &req);
-  tEncoderClear(&encoder);
-
-  pRequest = createRequest(tmq->pTscObj, NULL, NULL, TDMT_MND_MQ_COMMIT_OFFSET);
-  if (pRequest == NULL) {
-    tscError("failed to malloc request");
-  }
-
-  SMqCommitCbParam* pParam = taosMemoryCalloc(1, sizeof(SMqCommitCbParam));
-  if (pParam == NULL) {
-    return -1;
-  }
-  pParam->tmq = tmq;
-  tsem_init(&pParam->rspSem, 0, 0);
-  pParam->async = async;
-  pParam->offsets = pOffsets;
-
-  pRequest->body.requestMsg = (SDataBuf){
-      .pData = buf,
-      .len = tlen,
-      .handle = NULL,
-  };
-
-  SMsgSendInfo* sendInfo = buildMsgInfoImpl(pRequest);
-  sendInfo->requestObjRefId = 0;
-  sendInfo->param = pParam;
-  sendInfo->fp = tmqCommitCb;
-  SEpSet epSet = getEpSet_s(&tmq->pTscObj->pAppInfo->mgmtEp);
-
-  int64_t transporterId = 0;
-  asyncSendMsgToServer(tmq->pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
-
-  if (!async) {
-    tsem_wait(&pParam->rspSem);
-    resp = pParam->rspErr;
-    tsem_destroy(&pParam->rspSem);
-    taosMemoryFree(pParam);
-
-    if (pOffsets) {
-      taosArrayDestroy(pOffsets);
-    }
-  }
-
-  return resp;
-#endif
 }
 
 tmq_resp_err_t tmq_subscribe(tmq_t* tmq, const tmq_list_t* topic_list) {
@@ -859,93 +770,6 @@ void tmq_conf_set_auto_commit_cb(tmq_conf_t* conf, tmq_commit_cb* cb, void* para
   conf->commitCbUserParam = param;
 }
 
-#if 0
-TAOS_RES* tmq_create_stream(TAOS* taos, const char* streamName, const char* tbName, const char* sql) {
-  STscObj*     pTscObj = (STscObj*)taos;
-  SRequestObj* pRequest = NULL;
-  SQuery*      pQueryNode = NULL;
-  char*        astStr = NULL;
-  int32_t      sqlLen;
-
-  terrno = TSDB_CODE_SUCCESS;
-  if (taos == NULL || streamName == NULL || sql == NULL) {
-    tscError("invalid parameters for creating stream, connObj:%p, stream name:%s, sql:%s", taos, streamName, sql);
-    terrno = TSDB_CODE_TSC_INVALID_INPUT;
-    goto _return;
-  }
-  sqlLen = strlen(sql);
-
-  if (strlen(tbName) >= TSDB_TABLE_NAME_LEN) {
-    tscError("output tb name too long, max length:%d", TSDB_TABLE_NAME_LEN - 1);
-    terrno = TSDB_CODE_TSC_INVALID_INPUT;
-    goto _return;
-  }
-
-  if (sqlLen > TSDB_MAX_ALLOWED_SQL_LEN) {
-    tscError("sql string exceeds max length:%d", TSDB_MAX_ALLOWED_SQL_LEN);
-    terrno = TSDB_CODE_TSC_EXCEED_SQL_LIMIT;
-    goto _return;
-  }
-
-  tscDebug("start to create stream: %s", streamName);
-
-  int32_t code = 0;
-  CHECK_CODE_GOTO(buildRequest(pTscObj, sql, sqlLen, &pRequest), _return);
-  CHECK_CODE_GOTO(parseSql(pRequest, false, &pQueryNode, NULL), _return);
-  CHECK_CODE_GOTO(nodesNodeToString(pQueryNode->pRoot, false, &astStr, NULL), _return);
-
-  /*printf("%s\n", pStr);*/
-
-  SName name = {.acctId = pTscObj->acctId, .type = TSDB_TABLE_NAME_T};
-  strcpy(name.dbname, pRequest->pDb);
-  strcpy(name.tname, streamName);
-
-  SCMCreateStreamReq req = {
-      .igExists = 1,
-      .ast = astStr,
-      .sql = (char*)sql,
-  };
-  tNameExtractFullName(&name, req.name);
-  strcpy(req.targetStbFullName, tbName);
-
-  int   tlen = tSerializeSCMCreateStreamReq(NULL, 0, &req);
-  void* buf = taosMemoryMalloc(tlen);
-  if (buf == NULL) {
-    goto _return;
-  }
-
-  tSerializeSCMCreateStreamReq(buf, tlen, &req);
-
-  pRequest->body.requestMsg = (SDataBuf){
-      .pData = buf,
-      .len = tlen,
-      .handle = NULL,
-  };
-  pRequest->type = TDMT_MND_CREATE_STREAM;
-
-  SMsgSendInfo* sendInfo = buildMsgInfoImpl(pRequest);
-  SEpSet        epSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
-
-  int64_t transporterId = 0;
-  asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
-
-  tsem_wait(&pRequest->body.rspSem);
-
-_return:
-  taosMemoryFreeClear(astStr);
-  qDestroyQuery(pQueryNode);
-  /*if (sendInfo != NULL) {*/
-  /*destroySendMsgInfo(sendInfo);*/
-  /*}*/
-
-  if (pRequest != NULL && terrno != TSDB_CODE_SUCCESS) {
-    pRequest->code = terrno;
-  }
-
-  return pRequest;
-}
-#endif
-
 #if 0
 int32_t tmqGetSkipLogNum(tmq_message_t* tmq_message) {
   if (tmq_message == NULL) return 0;
@@ -1540,10 +1364,11 @@ const char* tmq_get_table_name(TAOS_RES* res) {
   }
   return NULL;
 }
-DLL_EXPORT void tmq_commit_async(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, tmq_commit_cb* cb, void* param) {
+
+void tmq_commit_async(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets, tmq_commit_cb* cb, void* param) {
   tmqCommitInner(tmq, offsets, 0, 1, cb, param);
 }
 
-DLL_EXPORT tmq_resp_err_t tmq_commit_sync(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets) {
+tmq_resp_err_t tmq_commit_sync(tmq_t* tmq, const tmq_topic_vgroup_list_t* offsets) {
   return tmqCommitInner(tmq, offsets, 0, 0, NULL, NULL);
 }
diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index 86d4f205c6..4ebedc98c1 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -684,7 +684,8 @@ size_t blockDataGetRowSize(SSDataBlock* pBlock) {
  */
 size_t blockDataGetSerialMetaSize(uint32_t numOfCols) {
   // | total rows/total length | block group id | column schema | each column length |
-  return sizeof(int32_t) + sizeof(uint64_t) + numOfCols * (sizeof(int16_t) + sizeof(int32_t)) + numOfCols * sizeof(int32_t);
+  return sizeof(int32_t) + sizeof(uint64_t) + numOfCols * (sizeof(int16_t) + sizeof(int32_t)) +
+         numOfCols * sizeof(int32_t);
 }
 
 double blockDataGetSerialRowSize(const SSDataBlock* pBlock) {
@@ -1217,6 +1218,7 @@ SSDataBlock* createOneDataBlock(const SSDataBlock* pDataBlock, bool copyData) {
   pBlock->info.numOfCols = numOfCols;
   pBlock->info.hasVarCol = pDataBlock->info.hasVarCol;
   pBlock->info.rowSize = pDataBlock->info.rowSize;
+  pBlock->info.groupId = pDataBlock->info.groupId;
 
   for (int32_t i = 0; i < numOfCols; ++i) {
     SColumnInfoData  colInfo = {0};
@@ -1892,12 +1894,12 @@ void blockCompressEncode(const SSDataBlock* pBlock, char* data, int32_t* dataLen
   uint64_t* groupId = (uint64_t*)data;
   data += sizeof(uint64_t);
 
-  for(int32_t i = 0; i < numOfCols; ++i) {
+  for (int32_t i = 0; i < numOfCols; ++i) {
     SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, i);
-    *((int16_t*) data) = pColInfoData->info.type;
+    *((int16_t*)data) = pColInfoData->info.type;
     data += sizeof(int16_t);
 
-    *((int32_t*) data) = pColInfoData->info.bytes;
+    *((int32_t*)data) = pColInfoData->info.bytes;
     data += sizeof(int32_t);
   }
 
@@ -1943,6 +1945,8 @@ void blockCompressEncode(const SSDataBlock* pBlock, char* data, int32_t* dataLen
 
 const char* blockCompressDecode(SSDataBlock* pBlock, int32_t numOfCols, int32_t numOfRows, const char* pData) {
   blockDataEnsureCapacity(pBlock, numOfRows);
+  pBlock->info.rows = numOfRows;
+
   const char* pStart = pData;
 
   int32_t dataLen = *(int32_t*)pStart;
@@ -1951,13 +1955,25 @@ const char* blockCompressDecode(SSDataBlock* pBlock, int32_t numOfCols, int32_t
   pBlock->info.groupId = *(uint64_t*)pStart;
   pStart += sizeof(uint64_t);
 
-  for(int32_t i = 0; i < numOfCols; ++i) {
+  if (pBlock->pDataBlock == NULL) {
+    pBlock->pDataBlock = taosArrayInit(numOfCols, sizeof(SColumnInfoData));
+    taosArraySetSize(pBlock->pDataBlock, numOfCols);
+  }
+
+  pBlock->info.numOfCols = taosArrayGetSize(pBlock->pDataBlock);
+  ASSERT(pBlock->pDataBlock->size >= numOfCols);
+
+  for (int32_t i = 0; i < numOfCols; ++i) {
     SColumnInfoData* pColInfoData = taosArrayGet(pBlock->pDataBlock, i);
     pColInfoData->info.type = *(int16_t*)pStart;
     pStart += sizeof(int16_t);
 
     pColInfoData->info.bytes = *(int32_t*)pStart;
     pStart += sizeof(int32_t);
+
+    if (IS_VAR_DATA_TYPE(pColInfoData->info.type)) {
+      pBlock->info.hasVarCol = true;
+    }
   }
 
   blockDataEnsureCapacity(pBlock, numOfRows);
@@ -1982,11 +1998,17 @@ const char* blockCompressDecode(SSDataBlock* pBlock, int32_t numOfCols, int32_t
         pColInfoData->pData = taosMemoryMalloc(colLen[i]);
       }
     } else {
+      if (pColInfoData->nullbitmap == NULL) {
+        pColInfoData->nullbitmap = taosMemoryCalloc(1, BitmapLen(numOfRows));
+      }
       memcpy(pColInfoData->nullbitmap, pStart, BitmapLen(numOfRows));
       pStart += BitmapLen(numOfRows);
     }
 
     if (colLen[i] > 0) {
+      if (pColInfoData->pData == NULL) {
+        pColInfoData->pData = taosMemoryCalloc(1, colLen[i]);
+      }
       memcpy(pColInfoData->pData, pStart, colLen[i]);
     }
 
diff --git a/source/common/src/tdataformat.c b/source/common/src/tdataformat.c
index 6037b011af..84a2cf0544 100644
--- a/source/common/src/tdataformat.c
+++ b/source/common/src/tdataformat.c
@@ -244,7 +244,7 @@ int32_t tTSRowNew(STSRowBuilder *pBuilder, SArray *pArray, STSchema *pTSchema, S
     }
   }
 
-  ASSERT(flags);
+  // ASSERT(flags); // only 1 column(ts)
 
   // decide
   uint32_t nData = 0;
@@ -268,7 +268,8 @@ int32_t tTSRowNew(STSRowBuilder *pBuilder, SArray *pArray, STSchema *pTSchema, S
         nDataT = BIT2_SIZE(pTSchema->numOfCols - 1) + pTSchema->flen + ntv;
         break;
       default:
-        ASSERT(0);
+        break; // only ts column
+        // ASSERT(0);
     }
 
     uint8_t tflags = 0;
@@ -283,7 +284,7 @@ int32_t tTSRowNew(STSRowBuilder *pBuilder, SArray *pArray, STSchema *pTSchema, S
       tflags |= TSROW_KV_BIG;
     }
 
-    if (nDataT < nDataK) {
+    if (nDataT <= nDataK) {
       nData = nDataT;
     } else {
       nData = nDataK;
@@ -373,7 +374,8 @@ int32_t tTSRowNew(STSRowBuilder *pBuilder, SArray *pArray, STSchema *pTSchema, S
           ptv = pf + pTSchema->flen;
           break;
         default:
-          ASSERT(0);
+          // ASSERT(0);
+          break;
       }
     } else {
       pTSKVRow = (STSKVRow *)(*ppRow)->pData;
@@ -495,7 +497,7 @@ void tTSRowGet(STSRow2 *pRow, STSchema *pTSchema, int32_t iCol, SColVal *pColVal
   SValue    value;
 
   ASSERT(iCol < pTSchema->numOfCols);
-  ASSERT(flags);
+  // ASSERT(flags); // only 1 ts column
   ASSERT(pRow->sver == pTSchema->version);
 
   if (iCol == 0) {
diff --git a/source/common/test/CMakeLists.txt b/source/common/test/CMakeLists.txt
index 0535b08be7..eb79e79afa 100644
--- a/source/common/test/CMakeLists.txt
+++ b/source/common/test/CMakeLists.txt
@@ -5,7 +5,12 @@ MESSAGE(STATUS "build parser unit test")
 SET(CMAKE_CXX_STANDARD 11)
 AUX_SOURCE_DIRECTORY(${CMAKE_CURRENT_SOURCE_DIR} SOURCE_LIST)
 
-ADD_EXECUTABLE(commonTest ${SOURCE_LIST})
+ADD_EXECUTABLE(commonTest "")
+TARGET_SOURCES(
+    commonTest
+    PRIVATE
+    "commonTests.cpp"
+)
 TARGET_LINK_LIBRARIES(
         commonTest
         PUBLIC os util common gtest
@@ -24,7 +29,12 @@ target_sources(
     PRIVATE
     "dataformatTest.cpp"
 )
-target_link_libraries(dataformatTest gtest gtest_main util)
+target_link_libraries(dataformatTest gtest gtest_main util common)
+target_include_directories(
+        dataformatTest
+        PUBLIC "${TD_SOURCE_DIR}/include/common"
+        PUBLIC "${TD_SOURCE_DIR}/include/util"
+)
 
 # tmsg test
 # add_executable(tmsgTest "")
diff --git a/source/common/test/dataformatTest.cpp b/source/common/test/dataformatTest.cpp
index 3497014c22..81e91da0d6 100644
--- a/source/common/test/dataformatTest.cpp
+++ b/source/common/test/dataformatTest.cpp
@@ -1 +1,481 @@
-#include "gtest/gtest.h"
\ No newline at end of file
+/*
+ * 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/>.
+ */
+
+#include <gtest/gtest.h>
+
+#include <taoserror.h>
+#include <tdataformat.h>
+#include <tglobal.h>
+#include <tmsg.h>
+#include <iostream>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wwrite-strings"
+#pragma GCC diagnostic ignored "-Wunused-function"
+#pragma GCC diagnostic ignored "-Wunused-variable"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+
+#define NONE_CSTR "no"
+#define NULL_CSTR "nu"
+#define NONE_LEN  2
+#define NULL_LEN  2
+const static int16_t MAX_COLS = 14;
+
+int main(int argc, char **argv) {
+  testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}
+
+// ts timestamp, c1 int, c2 bigint, c3 float, c4 double, c5 binary(10), c6 nchar(10), c7 tinyint, c8 smallint, c9 bool
+STSchema *genSTSchema(int16_t nCols) {
+  EXPECT_LE(nCols, MAX_COLS);
+  SSchema *pSchema = (SSchema *)taosMemoryCalloc(nCols, sizeof(SSchema));
+  EXPECT_NE(pSchema, nullptr);
+
+  for (int16_t i = 0; i < nCols; ++i) {
+    pSchema[i].colId = PRIMARYKEY_TIMESTAMP_COL_ID + i;
+    char colName[TSDB_COL_NAME_LEN] = {0};
+    snprintf(colName, TSDB_COL_NAME_LEN, "c%" PRIi16, i);
+    strncpy(pSchema[i].name, colName, TSDB_COL_NAME_LEN);
+
+    switch (i) {
+      case 0: {
+        pSchema[0].type = TSDB_DATA_TYPE_TIMESTAMP;
+        pSchema[0].bytes = TYPE_BYTES[pSchema[0].type];
+      } break;
+      case 1: {
+        pSchema[1].type = TSDB_DATA_TYPE_INT;
+        pSchema[1].bytes = TYPE_BYTES[pSchema[1].type];
+        ;
+      } break;
+      case 2: {
+        pSchema[2].type = TSDB_DATA_TYPE_BIGINT;
+        pSchema[2].bytes = TYPE_BYTES[pSchema[2].type];
+      } break;
+      case 3: {
+        pSchema[3].type = TSDB_DATA_TYPE_FLOAT;
+        pSchema[3].bytes = TYPE_BYTES[pSchema[3].type];
+      } break;
+      case 4: {
+        pSchema[4].type = TSDB_DATA_TYPE_DOUBLE;
+        pSchema[4].bytes = TYPE_BYTES[pSchema[4].type];
+      } break;
+      case 5: {
+        pSchema[5].type = TSDB_DATA_TYPE_BINARY;
+        pSchema[5].bytes = 12;
+      } break;
+      case 6: {
+        pSchema[6].type = TSDB_DATA_TYPE_NCHAR;
+        pSchema[6].bytes = 42;
+      } break;
+      case 7: {
+        pSchema[7].type = TSDB_DATA_TYPE_TINYINT;
+        pSchema[7].bytes = TYPE_BYTES[pSchema[7].type];
+      } break;
+      case 8: {
+        pSchema[8].type = TSDB_DATA_TYPE_SMALLINT;
+        pSchema[8].bytes = TYPE_BYTES[pSchema[8].type];
+      } break;
+      case 9: {
+        pSchema[9].type = TSDB_DATA_TYPE_BOOL;
+        pSchema[9].bytes = TYPE_BYTES[pSchema[9].type];
+      } break;
+      case 10: {
+        pSchema[10].type = TSDB_DATA_TYPE_UTINYINT;
+        pSchema[10].bytes = TYPE_BYTES[pSchema[10].type];
+      } break;
+      case 11: {
+        pSchema[11].type = TSDB_DATA_TYPE_USMALLINT;
+        pSchema[11].bytes = TYPE_BYTES[pSchema[11].type];
+      } break;
+      case 12: {
+        pSchema[12].type = TSDB_DATA_TYPE_UINT;
+        pSchema[12].bytes = TYPE_BYTES[pSchema[12].type];
+      } break;
+      case 13: {
+        pSchema[13].type = TSDB_DATA_TYPE_UBIGINT;
+        pSchema[13].bytes = TYPE_BYTES[pSchema[13].type];
+      } break;
+
+      default:
+        ASSERT(0);
+        break;
+    }
+  }
+
+  STSchema *pResult = NULL;
+  pResult = tdGetSTSChemaFromSSChema(&pSchema, nCols);
+
+  taosMemoryFree(pSchema);
+  return pResult;
+}
+
+// ts timestamp, c1 int, c2 bigint, c3 float, c4 double, c5 binary(10), c6 nchar(10), c7 tinyint, c8 smallint, c9 bool
+static int32_t genTestData(const char **data, int16_t nCols, SArray **pArray) {
+  if (!(*pArray)) {
+    *pArray = taosArrayInit(nCols, sizeof(SColVal));
+    if (!(*pArray)) return -1;
+  }
+
+  for (int16_t i = 0; i < nCols; ++i) {
+    SColVal colVal = {0};
+    colVal.cid = PRIMARYKEY_TIMESTAMP_COL_ID + i;
+    if (strncasecmp(data[i], NONE_CSTR, NONE_LEN) == 0) {
+      colVal.isNone = 1;
+      taosArrayPush(*pArray, &colVal);
+      continue;
+    } else if (strncasecmp(data[i], NULL_CSTR, NULL_LEN) == 0) {
+      colVal.isNull = 1;
+      taosArrayPush(*pArray, &colVal);
+      continue;
+    }
+
+    switch (i) {
+      case 0:
+        sscanf(data[i], "%" PRIi64, &colVal.value.ts);
+        break;
+      case 1: {
+        sscanf(data[i], "%" PRIi32, &colVal.value.i32);
+      } break;
+      case 2:
+        sscanf(data[i], "%" PRIi64, &colVal.value.i64);
+        break;
+      case 3:
+        sscanf(data[i], "%f", &colVal.value.f);
+        break;
+      case 4:
+        sscanf(data[i], "%lf", &colVal.value.d);
+        break;
+      case 5: {
+        int16_t dataLen = strlen(data[i]) + 1;
+        colVal.value.nData = dataLen < 10 ? dataLen : 10;
+        colVal.value.pData = (uint8_t *)data[i];
+      } break;
+      case 6: {
+        int16_t dataLen = strlen(data[i]) + 1;
+        colVal.value.nData = dataLen < 40 ? dataLen : 40;
+        colVal.value.pData = (uint8_t *)data[i];  // just for test, not real nchar
+      } break;
+      case 7:
+      case 9: {
+        int32_t d8;
+        sscanf(data[i], "%" PRId32, &d8);
+        colVal.value.i8 = (int8_t)d8;
+      } break;
+      case 8: {
+        int32_t d16;
+        sscanf(data[i], "%" PRId32, &d16);
+        colVal.value.i16 = (int16_t)d16;
+      } break;
+      case 10: {
+        uint32_t u8;
+        sscanf(data[i], "%" PRId32, &u8);
+        colVal.value.u8 = (uint8_t)u8;
+      } break;
+      case 11: {
+        uint32_t u16;
+        sscanf(data[i], "%" PRId32, &u16);
+        colVal.value.u16 = (uint16_t)u16;
+      } break;
+      case 12: {
+        sscanf(data[i], "%" PRIu32, &colVal.value.u32);
+      } break;
+      case 13: {
+        sscanf(data[i], "%" PRIu64, &colVal.value.u64);
+      } break;
+      default:
+        ASSERT(0);
+    }
+    taosArrayPush(*pArray, &colVal);
+  }
+  return 0;
+}
+
+int32_t debugPrintSColVal(SColVal *cv, int8_t type) {
+  if (cv->isNone) {
+    printf("None ");
+    return 0;
+  }
+  if (cv->isNull) {
+    printf("Null ");
+    return 0;
+  }
+  switch (type) {
+    case TSDB_DATA_TYPE_BOOL:
+      printf("%s ", cv->value.i8 == 0 ? "false" : "true");
+      break;
+    case TSDB_DATA_TYPE_TINYINT:
+      printf("%" PRIi8 " ", cv->value.i8);
+      break;
+    case TSDB_DATA_TYPE_SMALLINT:
+      printf("%" PRIi16 " ", cv->value.i16);
+      break;
+    case TSDB_DATA_TYPE_INT:
+      printf("%" PRIi32 " ", cv->value.i32);
+      break;
+    case TSDB_DATA_TYPE_BIGINT:
+      printf("%" PRIi64 " ", cv->value.i64);
+      break;
+    case TSDB_DATA_TYPE_FLOAT:
+      printf("%f ", cv->value.f);
+      break;
+    case TSDB_DATA_TYPE_DOUBLE:
+      printf("%lf ", cv->value.d);
+      break;
+    case TSDB_DATA_TYPE_VARCHAR: {
+      char tv[15] = {0};
+      snprintf(tv, 15, "%s", cv->value.pData);
+      printf("%s ", tv);
+    } break;
+    case TSDB_DATA_TYPE_TIMESTAMP:
+      printf("%" PRIi64 " ", cv->value.i64);
+      break;
+    case TSDB_DATA_TYPE_NCHAR: {
+      char tv[15] = {0};
+      snprintf(tv, 15, "%s", cv->value.pData);
+      printf("%s ", tv);
+    } break;
+    case TSDB_DATA_TYPE_UTINYINT:
+      printf("%" PRIu8 " ", cv->value.u8);
+      break;
+    case TSDB_DATA_TYPE_USMALLINT:
+      printf("%" PRIu16 " ", cv->value.u16);
+      break;
+    case TSDB_DATA_TYPE_UINT:
+      printf("%" PRIu32 " ", cv->value.u32);
+      break;
+    case TSDB_DATA_TYPE_UBIGINT:
+      printf("%" PRIu64 " ", cv->value.u64);
+      break;
+    case TSDB_DATA_TYPE_JSON:
+      printf("JSON ");
+      break;
+    case TSDB_DATA_TYPE_VARBINARY:
+      printf("VARBIN ");
+      break;
+    case TSDB_DATA_TYPE_DECIMAL:
+      printf("DECIMAL ");
+      break;
+    case TSDB_DATA_TYPE_BLOB:
+      printf("BLOB ");
+      break;
+    case TSDB_DATA_TYPE_MEDIUMBLOB:
+      printf("MedBLOB ");
+      break;
+    // case TSDB_DATA_TYPE_BINARY:
+    //   printf("BINARY ");
+    //   break;
+    case TSDB_DATA_TYPE_MAX:
+      printf("UNDEF ");
+      break;
+    default:
+      printf("UNDEF ");
+      break;
+  }
+  return 0;
+}
+
+void debugPrintTSRow(STSRow2 *row, STSchema *pTSchema, const char *tags, int32_t ln) {
+  printf("%s:%d %s:v%d:%d ", tags, ln, (row->flags & 0xf0) ? "KV" : "TP", row->sver, row->nData);
+  for (int16_t i = 0; i < schemaNCols(pTSchema); ++i) {
+    SColVal cv = {0};
+    tTSRowGet(row, pTSchema, i, &cv);
+    debugPrintSColVal(&cv, pTSchema->columns[i].type);
+  }
+  printf("\n");
+  fflush(stdout);
+}
+
+static int32_t checkSColVal(const char *rawVal, SColVal *cv, int8_t type) {
+  ASSERT(rawVal);
+
+  if (cv->isNone) {
+    EXPECT_STRCASEEQ(rawVal, NONE_CSTR);
+    return 0;
+  }
+  if (cv->isNull) {
+    EXPECT_STRCASEEQ(rawVal, NULL_CSTR);
+    return 0;
+  }
+
+  SValue rawSVal = {0};
+  switch (type) {
+    case TSDB_DATA_TYPE_BOOL:
+    case TSDB_DATA_TYPE_TINYINT: {
+      int32_t d8;
+      sscanf(rawVal, "%" PRId32, &d8);
+      EXPECT_EQ(cv->value.i8, (int8_t)d8);
+    } break;
+    case TSDB_DATA_TYPE_SMALLINT: {
+      int32_t d16;
+      sscanf(rawVal, "%" PRId32, &d16);
+      EXPECT_EQ(cv->value.i16, (int16_t)d16);
+    } break;
+    case TSDB_DATA_TYPE_INT: {
+      sscanf(rawVal, "%" PRId32, &rawSVal.i32);
+      EXPECT_EQ(cv->value.i32, rawSVal.i32);
+    } break;
+    case TSDB_DATA_TYPE_BIGINT: {
+      sscanf(rawVal, "%" PRIi64, &rawSVal.i64);
+      EXPECT_EQ(cv->value.i64, rawSVal.i64);
+    } break;
+    case TSDB_DATA_TYPE_FLOAT: {
+      sscanf(rawVal, "%f", &rawSVal.f);
+      EXPECT_FLOAT_EQ(cv->value.f, rawSVal.f);
+    } break;
+    case TSDB_DATA_TYPE_DOUBLE: {
+      sscanf(rawVal, "%lf", &rawSVal.d);
+      EXPECT_DOUBLE_EQ(cv->value.d, rawSVal.d);
+    } break;
+    case TSDB_DATA_TYPE_VARCHAR: {
+      EXPECT_STRCASEEQ(rawVal, (const char *)cv->value.pData);
+    } break;
+    case TSDB_DATA_TYPE_TIMESTAMP: {
+      sscanf(rawVal, "%" PRIi64, &rawSVal.ts);
+      EXPECT_DOUBLE_EQ(cv->value.ts, rawSVal.ts);
+    } break;
+    case TSDB_DATA_TYPE_NCHAR: {
+      EXPECT_STRCASEEQ(rawVal, (const char *)cv->value.pData);  // informal nchar comparsion
+    } break;
+    case TSDB_DATA_TYPE_UTINYINT: {
+      uint32_t u8;
+      sscanf(rawVal, "%" PRIu32, &u8);
+      EXPECT_EQ(cv->value.u8, (uint8_t)u8);
+    } break;
+    case TSDB_DATA_TYPE_USMALLINT: {
+      uint32_t u16;
+      sscanf(rawVal, "%" PRIu32, &u16);
+      EXPECT_EQ(cv->value.u16, (uint16_t)u16);
+    } break;
+    case TSDB_DATA_TYPE_UINT: {
+      sscanf(rawVal, "%" PRIu32, &rawSVal.u32);
+      EXPECT_EQ(cv->value.u32, rawSVal.u32);
+    } break;
+    case TSDB_DATA_TYPE_UBIGINT: {
+      sscanf(rawVal, "%" PRIu64, &rawSVal.u64);
+      EXPECT_EQ(cv->value.u64, rawSVal.u64);
+    } break;
+    case TSDB_DATA_TYPE_JSON:
+      printf("JSON ");
+      break;
+    case TSDB_DATA_TYPE_VARBINARY:
+      printf("VARBIN ");
+      break;
+    case TSDB_DATA_TYPE_DECIMAL:
+      printf("DECIMAL ");
+      break;
+    case TSDB_DATA_TYPE_BLOB:
+      printf("BLOB ");
+      break;
+    case TSDB_DATA_TYPE_MEDIUMBLOB:
+      printf("MedBLOB ");
+      break;
+    // case TSDB_DATA_TYPE_BINARY:
+    //   printf("BINARY ");
+    //   break;
+    case TSDB_DATA_TYPE_MAX:
+      printf("UNDEF ");
+      break;
+    default:
+      printf("UNDEF ");
+      break;
+  }
+  return 0;
+}
+
+static void checkTSRow(const char **data, STSRow2 *row, STSchema *pTSchema) {
+  for (int16_t i = 0; i < schemaNCols(pTSchema); ++i) {
+    SColVal cv = {0};
+    tTSRowGet(row, pTSchema, i, &cv);
+    checkSColVal(data[i], &cv, pTSchema->columns[i].type);
+  }
+}
+
+TEST(testCase, AllNormTest) {
+  int16_t  nCols = 1;
+  STSRow2 *row = nullptr;
+  SArray  *pArray = taosArrayInit(nCols, sizeof(SColVal));
+  EXPECT_NE(pArray, nullptr);
+
+  STSchema *pTSchema = genSTSchema(nCols);
+  EXPECT_NE(pTSchema, nullptr);
+
+  // ts timestamp, c1 int, c2 bigint, c3 float, c4 double, c5 binary(10), c6 nchar(10), c7 tinyint, c8 smallint,
+  // c9 bool
+  char *data[10] = {"1653694220000", "10", "20", "10.1", "10.1", "binary10", "nchar10", "10", "10", "1"};
+
+  genTestData((const char **)&data, nCols, &pArray);
+
+  tTSRowNew(NULL, pArray, pTSchema, &row);
+
+  debugPrintTSRow(row, pTSchema, __func__, __LINE__);
+  checkTSRow((const char **)&data, row, pTSchema);
+
+  taosArrayDestroy(pArray);
+  taosMemoryFree(pTSchema);
+}
+
+#if 1
+TEST(testCase, NoneTest) {
+  const static int nCols = 14;
+  const static int nRows = 20;
+  STSRow2         *row = nullptr;
+  SArray          *pArray = taosArrayInit(nCols, sizeof(SColVal));
+  EXPECT_NE(pArray, nullptr);
+
+  STSchema *pTSchema = genSTSchema(nCols);
+  EXPECT_NE(pTSchema, nullptr);
+
+  // ts timestamp,  c1 int,  c2 bigint,  c3 float,  c4 double,  c5 binary(10),  c6 nchar(10),  c7 tinyint,  c8 smallint,
+  // c9 bool c10 tinyint unsigned, c11 smallint unsigned, c12 int unsigned, c13 bigint unsigned
+  const char *data[nRows][nCols] = {
+      {"1653694220000", "no", "20", "10.1", "10.1", "binary10", "no", "10", "10", "nu", "10", "20", "30", "40"},
+      {"1653694220001", "no", "no", "no", "no", "no", "no", "no", "no", "no", "no", "no", "no", "no"},
+      {"1653694220002", "no", "no", "no", "no", "no", "nu", "no", "no", "no", "no", "no", "no", "nu"},
+      {"1653694220003", "nu", "no", "no", "no", "no", "nu", "no", "no", "no", "no", "no", "no", "no"},
+      {"1653694220004", "no", "20", "no", "no", "no", "nchar10", "no", "no", "no", "no", "no", "no", "no"},
+      {"1653694220005", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu"},
+      {"1653694220006", "no", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu"},
+      {"1653694220007", "no", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "no"},
+      {"1653694220008", "no", "nu", "nu", "nu", "binary10", "nu", "nu", "nu", "nu", "nu", "nu", "nu", "no"},
+      {"1653694220009", "no", "nu", "nu", "nu", "binary10", "nu", "nu", "10", "no", "nu", "nu", "nu", "100"},
+      {"1653694220010", "-1", "-1", "-1", "-1", "binary10", "nu", "-1", "0", "0", "0", "0", "0", "0"},
+      {"1653694220011", "-2147483648", "nu", "nu", "nu", "biy10", "nu", "nu", "32767", "no", "nu", "nu", "nu", "100"},
+      {"1653694220012", "2147483647", "nu", "nu", "nu", "ary10", "nu", "nu", "-32768", "no", "nu", "nu", "nu", "100"},
+      {"1653694220013", "no", "-9223372036854775818", "nu", "nu", "b1", "nu", "nu", "10", "no", "nu", "nu", "nu", "nu"},
+      {"1653694220014", "no", "nu", "nu", "nu", "b0", "nu", "nu", "10", "no", "nu", "nu", "nu", "9223372036854775808"},
+      {"1653694220015", "no", "nu", "nu", "nu", "binary30", "char4", "nu", "10", "no", "nu", "nu", "nu",
+       "18446744073709551615"},
+      {"1653694220016", "2147483647", "nu", "nu", "nu", "bin50", "nu", "nu", "10", "no", "nu", "nu", "nu", "100"},
+      {"1653694220017", "2147483646", "0", "0", "0", "binary10", "0", "0", "0", "0", "255", "0", "0", "0"},
+      {"1653694220018", "no", "-9223372036854775808", "nu", "nu", "binary10", "nu", "nu", "10", "no", "nu", "nu",
+       "4294967295", "100"},
+      {"1653694220019", "no", "9223372036854775807", "nu", "nu", "bin10", "nu", "nu", "10", "no", "254", "nu", "nu",
+       "no"}};
+
+
+  for (int r = 0; r < nRows; ++r) {
+    genTestData((const char **)&data[r], nCols, &pArray);
+    tTSRowNew(NULL, pArray, pTSchema, &row);
+    debugPrintTSRow(row, pTSchema, __func__, __LINE__);  // debug print
+    checkTSRow((const char **)&data[r], row, pTSchema);  // check
+    taosMemoryFreeClear(row);
+    taosArrayClear(pArray);
+  }
+
+  taosArrayDestroy(pArray);
+  taosMemoryFree(pTSchema);
+}
+#endif
\ No newline at end of file
diff --git a/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h b/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
index 0f7daf0e1d..7e5379b0f8 100644
--- a/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
+++ b/source/dnode/mgmt/mgmt_vnode/inc/vmInt.h
@@ -34,6 +34,7 @@ typedef struct SVnodeMgmt {
   SQWorkerPool   fetchPool;
   SWWorkerPool   syncPool;
   SWWorkerPool   writePool;
+  SWWorkerPool   applyPool;
   SWWorkerPool   mergePool;
   SSingleWorker  mgmtWorker;
   SSingleWorker  monitorWorker;
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
index 0ae6c2b336..90e4e30261 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmHandle.c
@@ -352,7 +352,9 @@ SArray *vmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DEPLOY, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RUN, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_DISPATCH_RSP, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_STREAM_TASK_RECOVER_RSP, vmPutMsgToFetchQueue, 0) == NULL) goto _OVER;
 
   if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_REPLICA, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_VND_ALTER_CONFIG, vmPutMsgToWriteQueue, 0) == NULL) goto _OVER;
diff --git a/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c b/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
index b6913f93f2..88831384d4 100644
--- a/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
+++ b/source/dnode/mgmt/mgmt_vnode/src/vmWorker.c
@@ -16,10 +16,8 @@
 #define _DEFAULT_SOURCE
 #include "vmInt.h"
 
-#include "sync.h"
-#include "syncTools.h"
-
 static inline void vmSendRsp(SRpcMsg *pMsg, int32_t code) {
+  if (pMsg->info.handle == NULL) return;
   SRpcMsg rsp = {
       .code = code,
       .pCont = pMsg->info.rsp,
@@ -55,7 +53,7 @@ static void vmProcessMgmtQueue(SQueueInfo *pInfo, SRpcMsg *pMsg) {
   if (IsReq(pMsg)) {
     if (code != 0) {
       if (terrno != 0) code = terrno;
-      dError("msg:%p failed to process since %s", pMsg, terrstr());
+      dError("msg:%p, failed to process since %s", pMsg, terrstr());
     }
     vmSendRsp(pMsg, code);
   }
@@ -107,11 +105,9 @@ static void vmProcessSyncQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numOf
 
     int32_t code = vnodeProcessSyncReq(pVnode->pImpl, pMsg, NULL);
     if (code != 0) {
+      if (terrno != 0) code = terrno;
       dError("vgId:%d, msg:%p failed to sync since %s", pVnode->vgId, pMsg, terrstr());
-      if (pMsg->info.handle != NULL) {
-        if (terrno != 0) code = terrno;
-        vmSendRsp(pMsg, code);
-      }
+      vmSendRsp(pMsg, code);
     }
 
     dTrace("vgId:%d, msg:%p is freed, code:0x%x", pVnode->vgId, pMsg, code);
@@ -130,8 +126,8 @@ static void vmProcessMergeQueue(SQueueInfo *pInfo, STaosQall *qall, int32_t numO
 
     int32_t code = vnodeProcessFetchMsg(pVnode->pImpl, pMsg, pInfo);
     if (code != 0) {
-      dError("vgId:%d, msg:%p failed to merge since %s", pVnode->vgId, pMsg, terrstr());
       if (terrno != 0) code = terrno;
+      dError("vgId:%d, msg:%p failed to merge since %s", pVnode->vgId, pMsg, terrstr());
       vmSendRsp(pMsg, code);
     }
 
@@ -150,7 +146,7 @@ static int32_t vmPutMsgToQueue(SVnodeMgmt *pMgmt, SRpcMsg *pMsg, EQueueType qtyp
 
   SVnodeObj *pVnode = vmAcquireVnode(pMgmt, pHead->vgId);
   if (pVnode == NULL) {
-    dError("vgId:%d, failed to put msg:%p into vnode queue since %s, type:%s", pHead->vgId, pMsg, terrstr(),
+    dError("vgId:%d, msg:%p failed to put into vnode queue since %s, type:%s", pHead->vgId, pMsg, terrstr(),
            TMSG_INFO(pMsg->msgType));
     return terrno != 0 ? terrno : -1;
   }
@@ -260,7 +256,7 @@ int32_t vmGetQueueSize(SVnodeMgmt *pMgmt, int32_t vgId, EQueueType qtype) {
 int32_t vmAllocQueue(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
   pVnode->pWriteQ = tWWorkerAllocQueue(&pMgmt->writePool, pVnode->pImpl, (FItems)vnodeProposeMsg);
   pVnode->pSyncQ = tWWorkerAllocQueue(&pMgmt->syncPool, pVnode, (FItems)vmProcessSyncQueue);
-  pVnode->pApplyQ = tWWorkerAllocQueue(&pMgmt->writePool, pVnode->pImpl, (FItems)vnodeApplyMsg);
+  pVnode->pApplyQ = tWWorkerAllocQueue(&pMgmt->applyPool, pVnode->pImpl, (FItems)vnodeApplyMsg);
   pVnode->pQueryQ = tQWorkerAllocQueue(&pMgmt->queryPool, pVnode, (FItem)vmProcessQueryQueue);
   pVnode->pFetchQ = tQWorkerAllocQueue(&pMgmt->fetchPool, pVnode, (FItem)vmProcessFetchQueue);
   pVnode->pMergeQ = tWWorkerAllocQueue(&pMgmt->mergePool, pVnode, (FItems)vmProcessMergeQueue);
@@ -277,7 +273,7 @@ int32_t vmAllocQueue(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
 
 void vmFreeQueue(SVnodeMgmt *pMgmt, SVnodeObj *pVnode) {
   tWWorkerFreeQueue(&pMgmt->writePool, pVnode->pWriteQ);
-  tWWorkerFreeQueue(&pMgmt->writePool, pVnode->pApplyQ);
+  tWWorkerFreeQueue(&pMgmt->applyPool, pVnode->pApplyQ);
   tWWorkerFreeQueue(&pMgmt->syncPool, pVnode->pSyncQ);
   tQWorkerFreeQueue(&pMgmt->queryPool, pVnode->pQueryQ);
   tQWorkerFreeQueue(&pMgmt->fetchPool, pVnode->pFetchQ);
@@ -309,6 +305,11 @@ int32_t vmStartWorker(SVnodeMgmt *pMgmt) {
   pWPool->max = tsNumOfVnodeWriteThreads;
   if (tWWorkerInit(pWPool) != 0) return -1;
 
+  SWWorkerPool *pAPool = &pMgmt->applyPool;
+  pAPool->name = "vnode-apply";
+  pAPool->max = tsNumOfVnodeWriteThreads;
+  if (tWWorkerInit(pAPool) != 0) return -1;
+
   SWWorkerPool *pSPool = &pMgmt->syncPool;
   pSPool->name = "vnode-sync";
   pSPool->max = tsNumOfVnodeSyncThreads;
@@ -345,6 +346,7 @@ void vmStopWorker(SVnodeMgmt *pMgmt) {
   tSingleWorkerCleanup(&pMgmt->monitorWorker);
   tSingleWorkerCleanup(&pMgmt->mgmtWorker);
   tWWorkerCleanup(&pMgmt->writePool);
+  tWWorkerCleanup(&pMgmt->applyPool);
   tWWorkerCleanup(&pMgmt->syncPool);
   tQWorkerCleanup(&pMgmt->queryPool);
   tQWorkerCleanup(&pMgmt->fetchPool);
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 181cddee47..a1b8d81d58 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -448,7 +448,7 @@ int32_t tqProcessTaskRecoverReq(STQ* pTq, SRpcMsg* pMsg) {
 }
 
 int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
-  SStreamDispatchRsp* pRsp = pMsg->pCont;
+  SStreamDispatchRsp* pRsp = POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead));
   int32_t             taskId = pRsp->taskId;
   SStreamTask*        pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
   streamProcessDispatchRsp(pTask, &pTq->pVnode->msgCb, pRsp);
diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index 4f02c559b1..68d71a0c24 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -688,6 +688,10 @@ typedef struct SSortedMergeOperatorInfo {
   int32_t          numOfResPerPage;
   char**           groupVal;
   SArray          *groupInfo;
+
+  bool hasGroupId;
+  uint64_t groupId;
+  STupleHandle* prefetchedTuple;
 } SSortedMergeOperatorInfo;
 
 typedef struct SSortOperatorInfo {
@@ -700,6 +704,10 @@ typedef struct SSortOperatorInfo {
 
   int64_t      startTs;       // sort start time
   uint64_t     sortElapsed;   // sort elapsed time, time to flush to disk not included.
+
+  STupleHandle *prefetchedTuple;
+  bool  hasGroupId;
+  uint64_t groupId;
 } SSortOperatorInfo;
 
 typedef struct STagFilterOperatorInfo {
@@ -759,7 +767,7 @@ void    setTbNameColData(void* pMeta, const SSDataBlock* pBlock, SColumnInfoData
 SInterval extractIntervalInfo(const STableScanPhysiNode* pTableScanNode);
 SColumn extractColumnFromColumnNode(SColumnNode* pColNode);
 
-SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity, SArray* pColMatchInfo);
+SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity, SArray* pColMatchInfo, SSortOperatorInfo* pInfo);
 SSDataBlock* loadNextDataBlock(void* param);
 
 void setResultRowInitCtx(SResultRow* pResult, SqlFunctionCtx* pCtx, int32_t numOfOutput, int32_t* rowCellInfoOffset);
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index 7b73fd8ae9..b4579b90b2 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -3103,6 +3103,68 @@ static SSDataBlock* doMerge(SOperatorInfo* pOperator) {
   return (pInfo->binfo.pRes->info.rows > 0) ? pInfo->binfo.pRes : NULL;
 }
 
+SSDataBlock* getSortedMergeBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity, SArray* pColMatchInfo,
+                                SSortedMergeOperatorInfo *pInfo) {
+  blockDataCleanup(pDataBlock);
+
+  SSDataBlock* p = tsortGetSortedDataBlock(pHandle);
+  if (p == NULL) {
+    return NULL;
+  }
+
+  blockDataEnsureCapacity(p, capacity);
+
+  while (1) {
+    STupleHandle* pTupleHandle = NULL;
+    if (pInfo->prefetchedTuple == NULL) {
+      pTupleHandle = tsortNextTuple(pHandle);
+    } else {
+      pTupleHandle = pInfo->prefetchedTuple;
+      pInfo->groupId = tsortGetGroupId(pTupleHandle);
+      pInfo->prefetchedTuple = NULL;
+    }
+
+    if (pTupleHandle == NULL) {
+      break;
+    }
+
+    uint64_t tupleGroupId = tsortGetGroupId(pTupleHandle);
+    if (!pInfo->hasGroupId) {
+      pInfo->groupId = tupleGroupId;
+      pInfo->hasGroupId = true;
+      appendOneRowToDataBlock(p, pTupleHandle);
+    } else if (pInfo->groupId == tupleGroupId) {
+      appendOneRowToDataBlock(p, pTupleHandle);
+    } else {
+      pInfo->prefetchedTuple = pTupleHandle;
+      break;
+    }
+
+    if (p->info.rows >= capacity) {
+      break;
+    }
+  }
+
+  if (p->info.rows > 0) {
+    int32_t numOfCols = taosArrayGetSize(pColMatchInfo);
+    for (int32_t i = 0; i < numOfCols; ++i) {
+      SColMatchInfo* pmInfo = taosArrayGet(pColMatchInfo, i);
+      ASSERT(pmInfo->matchType == COL_MATCH_FROM_SLOT_ID);
+
+      SColumnInfoData* pSrc = taosArrayGet(p->pDataBlock, pmInfo->srcSlotId);
+      SColumnInfoData* pDst = taosArrayGet(pDataBlock->pDataBlock, pmInfo->targetSlotId);
+      colDataAssign(pDst, pSrc, p->info.rows);
+    }
+
+    pDataBlock->info.rows = p->info.rows;
+    pDataBlock->info.capacity = p->info.rows;
+    pDataBlock->info.groupId = pInfo->groupId;
+  }
+
+  blockDataDestroy(p);
+  return (pDataBlock->info.rows > 0) ? pDataBlock : NULL;
+}
+
 static SSDataBlock* doSortedMerge(SOperatorInfo* pOperator) {
   if (pOperator->status == OP_EXEC_DONE) {
     return NULL;
@@ -3111,7 +3173,7 @@ static SSDataBlock* doSortedMerge(SOperatorInfo* pOperator) {
   SExecTaskInfo*            pTaskInfo = pOperator->pTaskInfo;
   SSortedMergeOperatorInfo* pInfo = pOperator->info;
   if (pOperator->status == OP_RES_TO_RETURN) {
-    return getSortedBlockData(pInfo->pSortHandle, pInfo->binfo.pRes, pOperator->resultInfo.capacity, NULL);
+    return getSortedMergeBlockData(pInfo->pSortHandle, pInfo->binfo.pRes, pOperator->resultInfo.capacity, NULL, pInfo);
   }
 
   int32_t numOfBufPage = pInfo->sortBufSize / pInfo->bufPageSize;
diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index cc76cc29e4..1e2a26386b 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -737,8 +737,8 @@ static bool isStateWindow(SStreamBlockScanInfo* pInfo) {
 static bool prepareDataScan(SStreamBlockScanInfo* pInfo) {
   SSDataBlock* pSDB = pInfo->pUpdateRes;
   STimeWindow  win = {
-      .skey = INT64_MIN,
-      .ekey = INT64_MAX,
+       .skey = INT64_MIN,
+       .ekey = INT64_MAX,
   };
   bool needRead = false;
   if (!isStateWindow(pInfo) && pInfo->updateResIndex < pSDB->info.rows) {
@@ -846,7 +846,7 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
   size_t total = taosArrayGetSize(pInfo->pBlockLists);
   if (pInfo->blockType == STREAM_DATA_TYPE_SSDATA_BLOCK) {
     if (pInfo->validBlockIndex >= total) {
-      doClearBufferedBlocks(pInfo);
+      /*doClearBufferedBlocks(pInfo);*/
       pOperator->status = OP_EXEC_DONE;
       return NULL;
     }
diff --git a/source/libs/executor/src/sortoperator.c b/source/libs/executor/src/sortoperator.c
index 1e57de8438..dcaa95e28a 100644
--- a/source/libs/executor/src/sortoperator.c
+++ b/source/libs/executor/src/sortoperator.c
@@ -42,6 +42,8 @@ SOperatorInfo* createSortOperatorInfo(SOperatorInfo* downstream, SSDataBlock* pR
 
   pInfo->pSortInfo = pSortInfo;
   pInfo->pColMatchInfo = pColMatchColInfo;
+  pInfo->hasGroupId = false;
+  pInfo->prefetchedTuple = NULL;
   pOperator->name = "SortOperator";
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_SORT;
   pOperator->blocking = true;
@@ -81,8 +83,8 @@ void appendOneRowToDataBlock(SSDataBlock* pBlock, STupleHandle* pTupleHandle) {
   pBlock->info.rows += 1;
 }
 
-SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity,
-                                SArray* pColMatchInfo) {
+SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity, SArray* pColMatchInfo,
+                                SSortOperatorInfo* pInfo) {
   blockDataCleanup(pDataBlock);
 
   SSDataBlock* p = tsortGetSortedDataBlock(pHandle);
@@ -93,14 +95,33 @@ SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, i
   blockDataEnsureCapacity(p, capacity);
 
   while (1) {
-    STupleHandle* pTupleHandle = tsortNextTuple(pHandle);
+    STupleHandle* pTupleHandle = NULL;
+    if (pInfo->prefetchedTuple == NULL) {
+      pTupleHandle = tsortNextTuple(pHandle);
+    } else {
+      pTupleHandle = pInfo->prefetchedTuple;
+      pInfo->groupId = tsortGetGroupId(pTupleHandle);
+      pInfo->prefetchedTuple = NULL;
+    }
+
     if (pTupleHandle == NULL) {
       break;
     }
 
-    appendOneRowToDataBlock(p, pTupleHandle);
+    uint64_t tupleGroupId = tsortGetGroupId(pTupleHandle);
+    if (!pInfo->hasGroupId) {
+      pInfo->groupId = tupleGroupId;
+      pInfo->hasGroupId = true;
+      appendOneRowToDataBlock(p, pTupleHandle);
+    } else if (pInfo->groupId == tupleGroupId) {
+      appendOneRowToDataBlock(p, pTupleHandle);
+    } else {
+      pInfo->prefetchedTuple = pTupleHandle;
+      break;
+    }
+
     if (p->info.rows >= capacity) {
-      return pDataBlock;
+      break;
     }
   }
 
@@ -117,6 +138,7 @@ SSDataBlock* getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, i
 
     pDataBlock->info.rows = p->info.rows;
     pDataBlock->info.capacity = p->info.rows;
+    pDataBlock->info.groupId = pInfo->groupId;
   }
 
   blockDataDestroy(p);
@@ -188,8 +210,8 @@ SSDataBlock* doSort(SOperatorInfo* pOperator) {
     longjmp(pTaskInfo->env, code);
   }
 
-  SSDataBlock* pBlock =
-      getSortedBlockData(pInfo->pSortHandle, pInfo->binfo.pRes, pOperator->resultInfo.capacity, pInfo->pColMatchInfo);
+  SSDataBlock* pBlock = getSortedBlockData(pInfo->pSortHandle, pInfo->binfo.pRes, pOperator->resultInfo.capacity,
+                                           pInfo->pColMatchInfo, pInfo);
 
   if (pBlock != NULL) {
     pOperator->resultInfo.totalRows += pBlock->info.rows;
@@ -230,11 +252,11 @@ typedef struct SMultiwaySortMergeOperatorInfo {
   SArray*      pColMatchInfo;  // for index map from table scan output
 
   SSDataBlock* pInputBlock;
-  int64_t startTs;  // sort start time
+  int64_t      startTs;  // sort start time
 
-  bool  hasGroupId;
-  uint64_t groupId;
-  STupleHandle *prefetchedTuple;
+  bool          hasGroupId;
+  uint64_t      groupId;
+  STupleHandle* prefetchedTuple;
 } SMultiwaySortMergeOperatorInfo;
 
 int32_t doOpenMultiwaySortMergeOperator(SOperatorInfo* pOperator) {
@@ -274,7 +296,7 @@ int32_t doOpenMultiwaySortMergeOperator(SOperatorInfo* pOperator) {
 }
 
 SSDataBlock* getMultiwaySortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock, int32_t capacity,
-                                SArray* pColMatchInfo, SMultiwaySortMergeOperatorInfo* pInfo) {
+                                        SArray* pColMatchInfo, SMultiwaySortMergeOperatorInfo* pInfo) {
   blockDataCleanup(pDataBlock);
 
   SSDataBlock* p = tsortGetSortedDataBlock(pHandle);
@@ -285,7 +307,6 @@ SSDataBlock* getMultiwaySortedBlockData(SSortHandle* pHandle, SSDataBlock* pData
   blockDataEnsureCapacity(p, capacity);
 
   while (1) {
-
     STupleHandle* pTupleHandle = NULL;
     if (pInfo->prefetchedTuple == NULL) {
       pTupleHandle = tsortNextTuple(pHandle);
@@ -314,7 +335,6 @@ SSDataBlock* getMultiwaySortedBlockData(SSortHandle* pHandle, SSDataBlock* pData
     if (p->info.rows >= capacity) {
       break;
     }
-
   }
 
   if (p->info.rows > 0) {
@@ -337,7 +357,6 @@ SSDataBlock* getMultiwaySortedBlockData(SSortHandle* pHandle, SSDataBlock* pData
   return (pDataBlock->info.rows > 0) ? pDataBlock : NULL;
 }
 
-
 SSDataBlock* doMultiwaySortMerge(SOperatorInfo* pOperator) {
   if (pOperator->status == OP_EXEC_DONE) {
     return NULL;
@@ -351,12 +370,8 @@ SSDataBlock* doMultiwaySortMerge(SOperatorInfo* pOperator) {
     longjmp(pTaskInfo->env, code);
   }
 
-  SSDataBlock* pBlock =
-      getMultiwaySortedBlockData(pInfo->pSortHandle,
-                         pInfo->binfo.pRes,
-                         pOperator->resultInfo.capacity,
-                         pInfo->pColMatchInfo,
-                                 pInfo);
+  SSDataBlock* pBlock = getMultiwaySortedBlockData(pInfo->pSortHandle, pInfo->binfo.pRes,
+                                                   pOperator->resultInfo.capacity, pInfo->pColMatchInfo, pInfo);
 
   if (pBlock != NULL) {
     pOperator->resultInfo.totalRows += pBlock->info.rows;
@@ -367,7 +382,7 @@ SSDataBlock* doMultiwaySortMerge(SOperatorInfo* pOperator) {
 }
 
 void destroyMultiwaySortMergeOperatorInfo(void* param, int32_t numOfOutput) {
-  SMultiwaySortMergeOperatorInfo * pInfo = (SMultiwaySortMergeOperatorInfo*)param;
+  SMultiwaySortMergeOperatorInfo* pInfo = (SMultiwaySortMergeOperatorInfo*)param;
   pInfo->binfo.pRes = blockDataDestroy(pInfo->binfo.pRes);
   pInfo->pInputBlock = blockDataDestroy(pInfo->pInputBlock);
 
@@ -387,9 +402,9 @@ int32_t getMultiwaySortMergeExplainExecInfo(SOperatorInfo* pOptr, void** pOptrEx
   return TSDB_CODE_SUCCESS;
 }
 
-SOperatorInfo* createMultiwaySortMergeOperatorInfo(SOperatorInfo** downStreams, int32_t numStreams, SSDataBlock* pInputBlock,
-                                                   SSDataBlock* pResBlock, SArray* pSortInfo, SArray* pColMatchColInfo,
-                                                   SExecTaskInfo* pTaskInfo) {
+SOperatorInfo* createMultiwaySortMergeOperatorInfo(SOperatorInfo** downStreams, int32_t numStreams,
+                                                   SSDataBlock* pInputBlock, SSDataBlock* pResBlock, SArray* pSortInfo,
+                                                   SArray* pColMatchColInfo, SExecTaskInfo* pTaskInfo) {
   SMultiwaySortMergeOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SMultiwaySortMergeOperatorInfo));
   SOperatorInfo*                  pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
   int32_t                         rowSize = pResBlock->info.rowSize;
@@ -413,7 +428,8 @@ SOperatorInfo* createMultiwaySortMergeOperatorInfo(SOperatorInfo** downStreams,
 
   pInfo->bufPageSize = rowSize < 1024 ? 1024 : rowSize * 2;
   pInfo->sortBufSize = pInfo->bufPageSize * 16;
-
+  pInfo->hasGroupId = false;
+  pInfo->prefetchedTuple = NULL;
   pOperator->pTaskInfo = pTaskInfo;
   pOperator->fpSet =
       createOperatorFpSet(doOpenMultiwaySortMergeOperator, doMultiwaySortMerge, NULL, NULL,
diff --git a/source/libs/executor/src/tsort.c b/source/libs/executor/src/tsort.c
index cbbdca48bf..ea8ded2c30 100644
--- a/source/libs/executor/src/tsort.c
+++ b/source/libs/executor/src/tsort.c
@@ -528,16 +528,24 @@ static int32_t createInitialSources(SSortHandle* pHandle) {
   if (pHandle->type == SORT_SINGLESOURCE_SORT) {
     SSortSource* source = taosArrayGetP(pHandle->pOrderedSource, 0);
     taosArrayClear(pHandle->pOrderedSource);
-    
+
+    bool hasGroupId = false;
+    SSDataBlock* prefetchedDataBlock = NULL;
+
     while (1) {
-      SSDataBlock* pBlock = pHandle->fetchfp(source->param);
+      SSDataBlock* pBlock = NULL;
+      if (prefetchedDataBlock == NULL) {
+        pBlock = pHandle->fetchfp(source->param);
+      } else {
+        pBlock = prefetchedDataBlock;
+        prefetchedDataBlock = NULL;
+      }
+
       if (pBlock == NULL) {
         break;
       }
 
-      if (pHandle->pDataBlock == NULL) {
-        pHandle->pDataBlock = createOneDataBlock(pBlock, false);
-
+      if (!hasGroupId) {
         // calculate the buffer pages according to the total available buffers.
         int32_t rowSize = blockDataGetRowSize(pBlock);
         if (rowSize * 4 > 4096) {
@@ -549,29 +557,36 @@ static int32_t createInitialSources(SSortHandle* pHandle) {
         // todo!!
         pHandle->numOfPages = 1024;
         sortBufSize = pHandle->numOfPages * pHandle->pageSize;
+
+        hasGroupId = true;
+        pHandle->pDataBlock = createOneDataBlock(pBlock, false);
       }
 
-      // perform the scalar function calculation before apply the sort
-      if (pHandle->beforeFp != NULL) {
-        pHandle->beforeFp(pBlock, pHandle->param);
-      }
+      if (pHandle->pDataBlock->info.groupId == pBlock->info.groupId) {
+        // perform the scalar function calculation before apply the sort
+        if (pHandle->beforeFp != NULL) {
+          pHandle->beforeFp(pBlock, pHandle->param);
+        }
+        // todo relocate the columns
+        int32_t code = blockDataMerge(pHandle->pDataBlock, pBlock);
+        if (code != 0) {
+          return code;
+        }
 
-      // todo relocate the columns
-      int32_t code = blockDataMerge(pHandle->pDataBlock, pBlock);
-      if (code != 0) {
-        return code;
-      }
+        size_t size = blockDataGetSize(pHandle->pDataBlock);
+        if (size > sortBufSize) {
+          // Perform the in-memory sort and then flush data in the buffer into disk.
+          int64_t p = taosGetTimestampUs();
+          blockDataSort(pHandle->pDataBlock, pHandle->pSortInfo);
 
-      size_t size = blockDataGetSize(pHandle->pDataBlock);
-      if (size > sortBufSize) {
-        // Perform the in-memory sort and then flush data in the buffer into disk.
-        int64_t p = taosGetTimestampUs();
-        blockDataSort(pHandle->pDataBlock, pHandle->pSortInfo);
+          int64_t el = taosGetTimestampUs() - p;
+          pHandle->sortElapsed += el;
 
-        int64_t el = taosGetTimestampUs() - p;
-        pHandle->sortElapsed += el;
-
-        doAddToBuf(pHandle->pDataBlock, pHandle);
+          doAddToBuf(pHandle->pDataBlock, pHandle);
+        }
+      } else {
+        prefetchedDataBlock = pBlock;
+        pHandle->pDataBlock = createOneDataBlock(pBlock, false);
       }
     }
 
diff --git a/source/libs/function/inc/builtinsimpl.h b/source/libs/function/inc/builtinsimpl.h
index 56379f0e1f..3a9b94d71e 100644
--- a/source/libs/function/inc/builtinsimpl.h
+++ b/source/libs/function/inc/builtinsimpl.h
@@ -78,7 +78,6 @@ bool percentileFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultI
 int32_t percentileFunction(SqlFunctionCtx *pCtx);
 int32_t percentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
-int32_t getApercentileMaxSize();
 bool getApercentileFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool apercentileFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
 int32_t apercentileFunction(SqlFunctionCtx *pCtx);
@@ -86,6 +85,7 @@ int32_t apercentileFunctionMerge(SqlFunctionCtx* pCtx);
 int32_t apercentileFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 int32_t apercentileCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
+int32_t getApercentileMaxSize();
 
 bool getDiffFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool diffFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResInfo);
@@ -103,13 +103,13 @@ int32_t topFunction(SqlFunctionCtx *pCtx);
 int32_t bottomFunction(SqlFunctionCtx *pCtx);
 int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
-int32_t getSpreadInfoSize();
 bool getSpreadFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool spreadFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
 int32_t spreadFunction(SqlFunctionCtx* pCtx);
 int32_t spreadFunctionMerge(SqlFunctionCtx* pCtx);
 int32_t spreadFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 int32_t spreadPartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
+int32_t getSpreadInfoSize();
 
 bool getElapsedFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool elapsedFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
@@ -119,7 +119,10 @@ int32_t elapsedFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 bool getHistogramFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 bool histogramFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
 int32_t histogramFunction(SqlFunctionCtx* pCtx);
+int32_t histogramFunctionMerge(SqlFunctionCtx* pCtx);
 int32_t histogramFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
+int32_t histogramPartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
+int32_t getHistogramInfoSize();
 
 bool getHLLFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 int32_t hllFunction(SqlFunctionCtx* pCtx);
diff --git a/source/libs/function/src/builtins.c b/source/libs/function/src/builtins.c
index a7d6fd7371..eca4587c03 100644
--- a/source/libs/function/src/builtins.c
+++ b/source/libs/function/src/builtins.c
@@ -503,6 +503,58 @@ static int32_t translateHistogram(SFunctionNode* pFunc, char* pErrBuf, int32_t l
   return TSDB_CODE_SUCCESS;
 }
 
+static int32_t translateHistogramImpl(SFunctionNode* pFunc, char* pErrBuf, int32_t len, bool isPartial) {
+  int32_t numOfParams = LIST_LENGTH(pFunc->pParameterList);
+  if (isPartial) {
+    if (4 != numOfParams) {
+      return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
+    uint8_t colType = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
+    if (!IS_NUMERIC_TYPE(colType)) {
+      return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
+    // param1 ~ param3
+    for (int32_t i = 1; i < numOfParams; ++i) {
+      SNode* pParamNode = nodesListGetNode(pFunc->pParameterList, i);
+      if (QUERY_NODE_VALUE != nodeType(pParamNode)) {
+        return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+      }
+
+      SValueNode* pValue = (SValueNode*)pParamNode;
+
+      pValue->notReserved = true;
+    }
+
+    if (((SExprNode*)nodesListGetNode(pFunc->pParameterList, 1))->resType.type != TSDB_DATA_TYPE_BINARY ||
+        ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 2))->resType.type != TSDB_DATA_TYPE_BINARY ||
+        ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 3))->resType.type != TSDB_DATA_TYPE_BIGINT) {
+      return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
+    pFunc->node.resType = (SDataType){.bytes = getHistogramInfoSize() + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY};
+  } else {
+    if (1 != numOfParams) {
+      return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
+    if (((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type != TSDB_DATA_TYPE_BINARY) {
+      return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+    }
+
+    pFunc->node.resType = (SDataType){.bytes = 512, .type = TSDB_DATA_TYPE_BINARY};
+  }
+  return TSDB_CODE_SUCCESS;
+}
+
+static int32_t translateHistogramPartial(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
+  return translateHistogramImpl(pFunc, pErrBuf, len, true);
+}
+static int32_t translateHistogramMerge(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
+  return translateHistogramImpl(pFunc, pErrBuf, len, false);
+}
+
 static int32_t translateHLL(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
   if (1 != LIST_LENGTH(pFunc->pParameterList)) {
     return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
@@ -1394,6 +1446,28 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getHistogramFuncEnv,
     .initFunc     = histogramFunctionSetup,
     .processFunc  = histogramFunction,
+    .finalizeFunc = histogramFinalize,
+    .pPartialFunc = "_histogram_partial",
+    .pMergeFunc   = "_histogram_merge"
+  },
+  {
+    .name = "_histogram_partial",
+    .type = FUNCTION_TYPE_HISTOGRAM_PARTIAL,
+    .classification = FUNC_MGT_AGG_FUNC,
+    .translateFunc = translateHistogramPartial,
+    .getEnvFunc   = getHistogramFuncEnv,
+    .initFunc     = histogramFunctionSetup,
+    .processFunc  = histogramFunction,
+    .finalizeFunc = histogramPartialFinalize
+  },
+  {
+    .name = "_histogram_merge",
+    .type = FUNCTION_TYPE_HISTOGRAM_MERGE,
+    .classification = FUNC_MGT_AGG_FUNC,
+    .translateFunc = translateHistogramMerge,
+    .getEnvFunc   = getHistogramFuncEnv,
+    .initFunc     = functionSetup,
+    .processFunc  = histogramFunctionMerge,
     .finalizeFunc = histogramFinalize
   },
   {
diff --git a/source/libs/function/src/builtinsimpl.c b/source/libs/function/src/builtinsimpl.c
index 0852779791..e0302f9598 100644
--- a/source/libs/function/src/builtinsimpl.c
+++ b/source/libs/function/src/builtinsimpl.c
@@ -2187,9 +2187,7 @@ int32_t apercentilePartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
   SAPercentileInfo*       pInfo = (SAPercentileInfo*)GET_ROWCELL_INTERBUF(pResInfo);
 
-  int32_t bytesHist   = (int32_t)(sizeof(SAPercentileInfo) + sizeof(SHistogramInfo) + sizeof(SHistBin) * (MAX_HISTOGRAM_BIN + 1));
-  int32_t bytesDigest = (int32_t)(sizeof(SAPercentileInfo) + TDIGEST_SIZE(COMPRESSION));
-  int32_t resultBytes = TMAX(bytesHist, bytesDigest);
+  int32_t resultBytes = getApercentileMaxSize();
   char *res = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
 
   if (pInfo->algo == APERCT_ALGO_TDIGEST) {
@@ -3138,6 +3136,10 @@ int32_t elapsedFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   return functionFinalize(pCtx, pBlock);
 }
 
+int32_t getHistogramInfoSize() {
+  return (int32_t)sizeof(SHistoFuncInfo) + HISTOGRAM_MAX_BINS_NUM * sizeof(SHistoFuncBin);
+}
+
 bool getHistogramFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) {
   pEnv->calcMemSize = sizeof(SHistoFuncInfo) + HISTOGRAM_MAX_BINS_NUM * sizeof(SHistoFuncBin);
   return true;
@@ -3348,6 +3350,30 @@ int32_t histogramFunction(SqlFunctionCtx *pCtx) {
   return TSDB_CODE_SUCCESS;
 }
 
+int32_t histogramFunctionMerge(SqlFunctionCtx *pCtx) {
+  SInputColumnInfoData* pInput = &pCtx->input;
+  SColumnInfoData* pCol = pInput->pData[0];
+  ASSERT(pCol->info.type == TSDB_DATA_TYPE_BINARY);
+
+  SHistoFuncInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
+
+  int32_t start = pInput->startRowIndex;
+  char* data = colDataGetData(pCol, start);
+  SHistoFuncInfo* pInputInfo = (SHistoFuncInfo *)varDataVal(data);
+
+  pInfo->normalized = pInputInfo->normalized;
+  pInfo->numOfBins  = pInputInfo->numOfBins;
+  pInfo->totalCount += pInputInfo->totalCount;
+  for (int32_t k = 0; k < pInfo->numOfBins; ++k) {
+    pInfo->bins[k].lower = pInputInfo->bins[k].lower;
+    pInfo->bins[k].upper = pInputInfo->bins[k].upper;
+    pInfo->bins[k].count += pInputInfo->bins[k].count;
+  }
+
+  SET_VAL(GET_RES_INFO(pCtx), pInfo->numOfBins, pInfo->numOfBins);
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t histogramFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
   SHistoFuncInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
@@ -3384,6 +3410,24 @@ int32_t histogramFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   return pResInfo->numOfRes;
 }
 
+int32_t histogramPartialFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
+  SResultRowEntryInfo* pResInfo = GET_RES_INFO(pCtx);
+  SHistoFuncInfo* pInfo = GET_ROWCELL_INTERBUF(GET_RES_INFO(pCtx));
+  int32_t resultBytes = getHistogramInfoSize();
+  char *res = taosMemoryCalloc(resultBytes + VARSTR_HEADER_SIZE, sizeof(char));
+
+  memcpy(varDataVal(res), pInfo, resultBytes);
+  varDataSetLen(res, resultBytes);
+
+  int32_t          slotId = pCtx->pExpr->base.resSchema.slotId;
+  SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);
+
+  colDataAppend(pCol, pBlock->info.rows, res, false);
+
+  taosMemoryFree(res);
+  return 1;
+}
+
 bool getHLLFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv) {
   pEnv->calcMemSize = sizeof(SHLLInfo);
   return true;
diff --git a/source/libs/index/src/.indexFilter.c.swo b/source/libs/index/src/.indexFilter.c.swo
deleted file mode 100644
index c61d5e7793..0000000000
Binary files a/source/libs/index/src/.indexFilter.c.swo and /dev/null differ
diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index 2b15f5031e..2369779105 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -901,12 +901,22 @@ int32_t toISO8601Function(SScalarParam *pInput, int32_t inputNum, SScalarParam *
 
     if (hasFraction) {
       int32_t fracLen = (int32_t)strlen(fraction) + 1;
-      char *tzInfo = strchr(buf, '+');
-      if (tzInfo) {
+
+      char *tzInfo;
+      if (buf[len - 1] == 'z' || buf[len - 1] == 'Z') {
+        tzInfo = &buf[len - 1];
         memmove(tzInfo + fracLen, tzInfo, strlen(tzInfo));
       } else {
-        tzInfo = strchr(buf, '-');
-        memmove(tzInfo + fracLen, tzInfo, strlen(tzInfo));
+        tzInfo = strchr(buf, '+');
+        if (tzInfo) {
+          memmove(tzInfo + fracLen, tzInfo, strlen(tzInfo));
+        } else {
+          //search '-' backwards
+          tzInfo = strrchr(buf, '-');
+          if (tzInfo) {
+            memmove(tzInfo + fracLen, tzInfo, strlen(tzInfo));
+          }
+        }
       }
 
       char tmp[32] = {0};
diff --git a/source/libs/stream/src/stream.c b/source/libs/stream/src/stream.c
index 823ce6d2fe..069595390d 100644
--- a/source/libs/stream/src/stream.c
+++ b/source/libs/stream/src/stream.c
@@ -59,7 +59,7 @@ int32_t streamTaskEnqueue(SStreamTask* pTask, SStreamDispatchReq* pReq, SRpcMsg*
 
   // rsp by input status
   void* buf = rpcMallocCont(sizeof(SMsgHead) + sizeof(SStreamDispatchRsp));
-  ((SMsgHead*)buf)->vgId = htonl(pReq->sourceVg);
+  ((SMsgHead*)buf)->vgId = htonl(pReq->upstreamNodeId);
   SStreamDispatchRsp* pCont = POINTER_SHIFT(buf, sizeof(SMsgHead));
   pCont->inputStatus = status;
   pCont->streamId = pReq->streamId;
@@ -78,7 +78,18 @@ int32_t streamProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDisp
   // 2.1. idle: exec
   // 2.2. executing: return
   // 2.3. closing: keep trying
-  streamExec(pTask, pMsgCb);
+  if (pTask->execType != TASK_EXEC__NONE) {
+    streamExec(pTask, pMsgCb);
+  } else {
+    ASSERT(pTask->sinkType != TASK_SINK__NONE);
+    while (1) {
+      void* data = streamQueueNextItem(pTask->inputQueue);
+      if (data == NULL) return 0;
+      if (streamTaskOutput(pTask, data) < 0) {
+        ASSERT(0);
+      }
+    }
+  }
 
   // 3. handle output
   // 3.1 check and set status
diff --git a/source/libs/stream/src/streamDispatch.c b/source/libs/stream/src/streamDispatch.c
index d1e3fa0799..16da418677 100644
--- a/source/libs/stream/src/streamDispatch.c
+++ b/source/libs/stream/src/streamDispatch.c
@@ -22,6 +22,7 @@ int32_t tEncodeStreamDispatchReq(SEncoder* pEncoder, const SStreamDispatchReq* p
   if (tEncodeI32(pEncoder, pReq->sourceTaskId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->sourceVg) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->sourceChildId) < 0) return -1;
+  if (tEncodeI32(pEncoder, pReq->upstreamNodeId) < 0) return -1;
   if (tEncodeI32(pEncoder, pReq->blockNum) < 0) return -1;
   ASSERT(taosArrayGetSize(pReq->data) == pReq->blockNum);
   ASSERT(taosArrayGetSize(pReq->dataLen) == pReq->blockNum);
@@ -42,6 +43,7 @@ int32_t tDecodeStreamDispatchReq(SDecoder* pDecoder, SStreamDispatchReq* pReq) {
   if (tDecodeI32(pDecoder, &pReq->sourceTaskId) < 0) return -1;
   if (tDecodeI32(pDecoder, &pReq->sourceVg) < 0) return -1;
   if (tDecodeI32(pDecoder, &pReq->sourceChildId) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pReq->upstreamNodeId) < 0) return -1;
   if (tDecodeI32(pDecoder, &pReq->blockNum) < 0) return -1;
   ASSERT(pReq->blockNum > 0);
   pReq->data = taosArrayInit(pReq->blockNum, sizeof(void*));
@@ -94,6 +96,7 @@ int32_t streamBuildDispatchMsg(SStreamTask* pTask, SStreamDataBlock* data, SRpcM
       .sourceTaskId = pTask->taskId,
       .sourceVg = data->sourceVg,
       .sourceChildId = pTask->childId,
+      .upstreamNodeId = pTask->nodeId,
       .blockNum = blockNum,
   };
 
@@ -184,13 +187,17 @@ int32_t streamDispatch(SStreamTask* pTask, SMsgCb* pMsgCb) {
 #endif
 
   SStreamDataBlock* pBlock = streamQueueNextItem(pTask->outputQueue);
-  if (pBlock == NULL) return 0;
+  if (pBlock == NULL) {
+    atomic_store_8(&pTask->outputStatus, TASK_OUTPUT_STATUS__NORMAL);
+    return 0;
+  }
   ASSERT(pBlock->type == STREAM_DATA_TYPE_SSDATA_BLOCK);
 
   SRpcMsg dispatchMsg = {0};
   SEpSet* pEpSet = NULL;
   if (streamBuildDispatchMsg(pTask, pBlock, &dispatchMsg, &pEpSet) < 0) {
     ASSERT(0);
+    atomic_store_8(&pTask->outputStatus, TASK_OUTPUT_STATUS__NORMAL);
     return -1;
   }
 
diff --git a/source/libs/stream/src/streamExec.c b/source/libs/stream/src/streamExec.c
index 72df516e0d..fe1a857743 100644
--- a/source/libs/stream/src/streamExec.c
+++ b/source/libs/stream/src/streamExec.c
@@ -65,6 +65,7 @@ static SArray* streamExecForQall(SStreamTask* pTask, SArray* pRes) {
       }
       qRes->type = STREAM_INPUT__DATA_BLOCK;
       qRes->blocks = pRes;
+      /*qRes->sourceVg = pTask->nodeId;*/
       if (streamTaskOutput(pTask, qRes) < 0) {
         streamQueueProcessFail(pTask->inputQueue);
         taosArrayDestroy(pRes);