diff --git a/cmake/cmake.define b/cmake/cmake.define
index 0de3fba0c15361094fb5b55b874b07c4f568788a..0ae4f56f71db237ca08a7a0a10bcbfe99e58b2d6 100644
--- a/cmake/cmake.define
+++ b/cmake/cmake.define
@@ -71,8 +71,8 @@ ELSE ()
     ENDIF ()
 
     IF (${SANITIZER} MATCHES "true")
-        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}     -Werror -Werror=return-type -fPIC -gdwarf-2 -fsanitize=address -fsanitize=undefined -fsanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment -static-libasan -g3")
-        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wno-literal-suffix -Werror=return-type -fPIC -gdwarf-2 -fsanitize=address -fsanitize=undefined -fsanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment -static-libasan -g3")
+        SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}     -Werror -Werror=return-type -fPIC -gdwarf-2 -fsanitize=address -fsanitize=undefined -fsanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment -g3")
+        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wno-literal-suffix -Werror=return-type -fPIC -gdwarf-2 -fsanitize=address -fsanitize=undefined -fsanitize-recover=all -fsanitize=float-divide-by-zero -fsanitize=float-cast-overflow -fno-sanitize=null -fno-sanitize=alignment -g3")
 	MESSAGE(STATUS "Will compile with Address Sanitizer!")
     ELSE ()
         SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror -Werror=return-type -fPIC -gdwarf-2 -g3")
diff --git a/example/src/tstream.c b/example/src/tstream.c
index 537bfebededab2d807b2df1a73a6c53ed98a96dd..97ff2886fcb95fcfaca19ba4baf70b64160855ca 100644
--- a/example/src/tstream.c
+++ b/example/src/tstream.c
@@ -82,9 +82,7 @@ int32_t create_stream() {
   /*const char* sql = "select sum(k) from tu1 interval(10m)";*/
   /*pRes = tmq_create_stream(pConn, "stream1", "out1", sql);*/
   pRes = taos_query(
-      pConn,
-      "create stream stream1 trigger at_once into outstb as select _wstartts, min(k), max(k), sum(k) as sum_of_k "
-      "from tu1 interval(10m)");
+      pConn, "create stream stream1 trigger at_once into outstb as select _wstartts, sum(k) from tu1 interval(10m)");
   if (taos_errno(pRes) != 0) {
     printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
     return -1;
diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 1604749af8cb8f3073bd4b1ef46e30d45a37ddff..d18f609d543e375eee495f0516aa93a25c649653 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -114,17 +114,12 @@ static FORCE_INLINE void streamDataSubmitRefDec(SStreamDataSubmit* pDataSubmit)
 int32_t streamDataBlockEncode(void** buf, const SStreamDataBlock* pOutput);
 void*   streamDataBlockDecode(const void* buf, SStreamDataBlock* pInput);
 
-typedef struct {
-  void* inputHandle;
-  void* executor;
-} SStreamRunner;
-
 typedef struct {
   int8_t parallelizable;
   char*  qmsg;
   // followings are not applicable to encoder and decoder
-  int8_t         numOfRunners;
-  SStreamRunner* runners;
+  void* inputHandle;
+  void* executor;
 } STaskExec;
 
 typedef struct {
@@ -320,17 +315,15 @@ int32_t streamEnqueueDataSubmit(SStreamTask* pTask, SStreamDataSubmit* input);
 int32_t streamEnqueueDataBlk(SStreamTask* pTask, SStreamDataBlock* input);
 int32_t streamDequeueOutput(SStreamTask* pTask, void** output);
 
-int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, int32_t inputType, int32_t workId);
-
 int32_t streamTaskRun(SStreamTask* pTask);
 
 int32_t streamTaskHandleInput(SStreamTask* pTask, void* data);
 
 int32_t streamTaskProcessRunReq(SStreamTask* pTask, SMsgCb* pMsgCb);
-int32_t streamTaskProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchReq* pReq, SRpcMsg* pMsg);
-int32_t streamTaskProcessDispatchRsp(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchRsp* pRsp);
-int32_t streamTaskProcessRecoverReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamTaskRecoverReq* pReq, SRpcMsg* pMsg);
-int32_t streamTaskProcessRecoverRsp(SStreamTask* pTask, SStreamTaskRecoverRsp* pRsp);
+int32_t streamProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchReq* pReq, SRpcMsg* pMsg);
+int32_t streamProcessDispatchRsp(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchRsp* pRsp);
+int32_t streamProcessRecoverReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamTaskRecoverReq* pReq, SRpcMsg* pMsg);
+int32_t streamProcessRecoverRsp(SStreamTask* pTask, SStreamTaskRecoverRsp* pRsp);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/snode/src/snode.c b/source/dnode/snode/src/snode.c
index 7d7c01a870a3b2a07e1fe27ffb56bbc079dfb73b..ec75ffcae1b2b00bf2881b1fbf6e32c5d4f8a481 100644
--- a/source/dnode/snode/src/snode.c
+++ b/source/dnode/snode/src/snode.c
@@ -57,9 +57,7 @@ void sndMetaDelete(SStreamMeta *pMeta) {
 }
 
 int32_t sndMetaDeployTask(SStreamMeta *pMeta, SStreamTask *pTask) {
-  for (int i = 0; i < pTask->exec.numOfRunners; i++) {
-    pTask->exec.runners[i].executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, NULL);
-  }
+  pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, NULL);
   return taosHashPut(pMeta->pHash, &pTask->taskId, sizeof(int32_t), pTask, sizeof(void *));
 }
 
diff --git a/source/dnode/vnode/src/inc/tq.h b/source/dnode/vnode/src/inc/tq.h
index a8a3e4f601ed40bc3d7b2e618da08d1145c84a53..3017523aa9879d94dd8d12cc05dcebc2f8661185 100644
--- a/source/dnode/vnode/src/inc/tq.h
+++ b/source/dnode/vnode/src/inc/tq.h
@@ -173,8 +173,7 @@ typedef struct {
 } STqExec;
 
 struct STQ {
-  char* path;
-  // STqMetaStore* tqMeta;
+  char*     path;
   SHashObj* pushMgr;  // consumerId -> STqExec*
   SHashObj* execs;    // subKey -> STqExec
   SHashObj* pStreamTasks;
diff --git a/source/dnode/vnode/src/inc/vnodeInt.h b/source/dnode/vnode/src/inc/vnodeInt.h
index 1c3819c3d31a652e96068439c6ccbb661875cfcc..24b3f458b1962089e05d8eadcf2b23b177956109 100644
--- a/source/dnode/vnode/src/inc/vnodeInt.h
+++ b/source/dnode/vnode/src/inc/vnodeInt.h
@@ -123,11 +123,7 @@ int32_t tqProcessVgChangeReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessVgDeleteReq(STQ* pTq, char* msg, int32_t msgLen);
 int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId);
 int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen);
-#if 0
-int32_t tqProcessTaskExec(STQ* pTq, char* msg, int32_t msgLen, int32_t workerId);
-int32_t tqProcessStreamTrigger(STQ* pTq, void* data, int32_t dataLen, int32_t workerId);
-#endif
-int32_t tqProcessStreamTriggerNew(STQ* pTq, SSubmitReq* data);
+int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* data);
 int32_t tqProcessTaskRunReq(STQ* pTq, SRpcMsg* pMsg);
 int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg);
 int32_t tqProcessTaskRecoverReq(STQ* pTq, SRpcMsg* pMsg);
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 25fa716d4e386b596d2777b996d2f3cc09cc20e1..bc9a053a43a352a620de9884be641a37c99842b0 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -36,15 +36,6 @@ STQ* tqOpen(const char* path, SVnode* pVnode, SWal* pWal) {
   /*ASSERT(0);*/
   /*}*/
 
-#if 0
-  pTq->tqMeta = tqStoreOpen(pTq, path, (FTqSerialize)tqSerializeConsumer, (FTqDeserialize)tqDeserializeConsumer,
-                            (FTqDelete)taosMemoryFree, 0);
-  if (pTq->tqMeta == NULL) {
-    taosMemoryFree(pTq);
-    return NULL;
-  }
-#endif
-
   pTq->execs = taosHashInit(64, MurmurHash3_32, true, HASH_ENTRY_LOCK);
 
   pTq->pStreamTasks = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
@@ -65,48 +56,6 @@ void tqClose(STQ* pTq) {
   // TODO
 }
 
-static void tdSRowDemo() {
-#define DEMO_N_COLS 3
-
-  int16_t     schemaVersion = 0;
-  int32_t     numOfCols = DEMO_N_COLS;  // ts + int
-  SRowBuilder rb = {0};
-
-  SSchema schema[DEMO_N_COLS] = {
-      {.type = TSDB_DATA_TYPE_TIMESTAMP, .colId = 1, .name = "ts", .bytes = 8, .flags = COL_SMA_ON},
-      {.type = TSDB_DATA_TYPE_INT, .colId = 2, .name = "c1", .bytes = 4, .flags = COL_SMA_ON},
-      {.type = TSDB_DATA_TYPE_INT, .colId = 3, .name = "c2", .bytes = 4, .flags = COL_SMA_ON}};
-
-  SSchema*  pSchema = schema;
-  STSchema* pTSChema = tdGetSTSChemaFromSSChema(&pSchema, numOfCols);
-
-  tdSRowInit(&rb, schemaVersion);
-  tdSRowSetTpInfo(&rb, numOfCols, pTSChema->flen);
-  int32_t maxLen = TD_ROW_MAX_BYTES_FROM_SCHEMA(pTSChema);
-  void*   row = taosMemoryCalloc(1, maxLen);  // make sure the buffer is enough
-
-  // set row buf
-  tdSRowResetBuf(&rb, row);
-
-  for (int32_t idx = 0; idx < pTSChema->numOfCols; ++idx) {
-    STColumn* pColumn = pTSChema->columns + idx;
-    if (idx == 0) {
-      int64_t tsKey = 1651234567;
-      tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NORM, &tsKey, true, pColumn->offset, idx);
-    } else if (idx == 1) {
-      int32_t val1 = 10;
-      tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NORM, &val1, true, pColumn->offset, idx);
-    } else {
-      tdAppendColValToRow(&rb, pColumn->colId, pColumn->type, TD_VTYPE_NONE, NULL, true, pColumn->offset, idx);
-    }
-  }
-
-  // print
-  tdSRowPrint(row, pTSChema, __func__);
-
-  taosMemoryFree(pTSChema);
-}
-
 int32_t tqUpdateTbUidList(STQ* pTq, const SArray* tbUidList, bool isAdd) {
   void* pIter = NULL;
   while (1) {
@@ -261,32 +210,20 @@ int32_t tqPushMsgNew(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_
 }
 
 int tqPushMsg(STQ* pTq, void* msg, int32_t msgLen, tmsg_t msgType, int64_t ver) {
-  if (msgType != TDMT_VND_SUBMIT) return 0;
+  if (msgType == TDMT_VND_SUBMIT) {
+    if (taosHashGetSize(pTq->pStreamTasks) == 0) return 0;
 
-  // make sure msgType == TDMT_VND_SUBMIT
-  if (tdUpdateExpireWindow(pTq->pVnode->pSma, msg, ver) != 0) {
-    return -1;
-  }
-
-  if (taosHashGetSize(pTq->pStreamTasks) == 0) return 0;
+    if (tdUpdateExpireWindow(pTq->pVnode->pSma, msg, ver) != 0) {
+      // TODO error handle
+    }
+    void* data = taosMemoryMalloc(msgLen);
+    if (data == NULL) {
+      return -1;
+    }
+    memcpy(data, msg, msgLen);
 
-  void* data = taosMemoryMalloc(msgLen);
-  if (data == NULL) {
-    return -1;
+    tqProcessStreamTrigger(pTq, data);
   }
-  memcpy(data, msg, msgLen);
-
-  tqProcessStreamTriggerNew(pTq, data);
-
-#if 0
-  SRpcMsg req = {
-      .msgType = TDMT_VND_STREAM_TRIGGER,
-      .pCont = data,
-      .contLen = msgLen,
-  };
-
-  tmsgPutToQueue(&pTq->pVnode->msgCb, FETCH_QUEUE, &req);
-#endif
 
   return 0;
 }
@@ -685,213 +622,6 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
   return 0;
 }
 
-#if 0
-int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
-  SMqPollReq* pReq = pMsg->pCont;
-  int64_t     consumerId = pReq->consumerId;
-  int64_t     fetchOffset;
-  int64_t     blockingTime = pReq->blockingTime;
-  int32_t     reqEpoch = pReq->epoch;
-
-  if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__EARLIEAST) {
-    fetchOffset = walGetFirstVer(pTq->pWal);
-  } else if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__LATEST) {
-    fetchOffset = walGetLastVer(pTq->pWal);
-  } else {
-    fetchOffset = pReq->currentOffset + 1;
-  }
-
-  tqDebug("tmq poll: consumer %ld (epoch %d) recv poll req in vg %d, req %ld %ld", consumerId, pReq->epoch,
-         TD_VID(pTq->pVnode), pReq->currentOffset, fetchOffset);
-
-  SMqPollRspV2 rspV2 = {0};
-  rspV2.dataLen = 0;
-
-  STqConsumer* pConsumer = tqHandleGet(pTq->tqMeta, consumerId);
-  if (pConsumer == NULL) {
-    vWarn("tmq poll: consumer %ld (epoch %d) not found in vg %d", consumerId, pReq->epoch, TD_VID(pTq->pVnode));
-    pMsg->pCont = NULL;
-    pMsg->contLen = 0;
-    pMsg->code = -1;
-    tmsgSendRsp(pMsg);
-    return 0;
-  }
-
-  int32_t consumerEpoch = atomic_load_32(&pConsumer->epoch);
-  while (consumerEpoch < reqEpoch) {
-    consumerEpoch = atomic_val_compare_exchange_32(&pConsumer->epoch, consumerEpoch, reqEpoch);
-  }
-
-  STqTopic* pTopic = NULL;
-  int32_t   topicSz = taosArrayGetSize(pConsumer->topics);
-  for (int32_t i = 0; i < topicSz; i++) {
-    STqTopic* topic = taosArrayGet(pConsumer->topics, i);
-    // TODO race condition
-    ASSERT(pConsumer->consumerId == consumerId);
-    if (strcmp(topic->topicName, pReq->topic) == 0) {
-      pTopic = topic;
-      break;
-    }
-  }
-  if (pTopic == NULL) {
-    vWarn("tmq poll: consumer %ld (epoch %d) topic %s not found in vg %d", consumerId, pReq->epoch, pReq->topic,
-          TD_VID(pTq->pVnode));
-    pMsg->pCont = NULL;
-    pMsg->contLen = 0;
-    pMsg->code = -1;
-    tmsgSendRsp(pMsg);
-    return 0;
-  }
-
-  tqDebug("poll topic %s from consumer %ld (epoch %d) vg %d", pTopic->topicName, consumerId, pReq->epoch,
-         TD_VID(pTq->pVnode));
-
-  rspV2.reqOffset = pReq->currentOffset;
-  rspV2.skipLogNum = 0;
-
-  while (1) {
-    /*if (fetchOffset > walGetLastVer(pTq->pWal) || walReadWithHandle(pTopic->pReadhandle, fetchOffset) < 0) {*/
-    // TODO
-    consumerEpoch = atomic_load_32(&pConsumer->epoch);
-    if (consumerEpoch > reqEpoch) {
-      tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, found new consumer epoch %d discard req epoch %d",
-             consumerId, pReq->epoch, TD_VID(pTq->pVnode), fetchOffset, consumerEpoch, reqEpoch);
-      break;
-    }
-    SWalReadHead* pHead;
-    if (walReadWithHandle_s(pTopic->pReadhandle, fetchOffset, &pHead) < 0) {
-      // TODO: no more log, set timer to wait blocking time
-      // if data inserted during waiting, launch query and
-      // response to user
-      tqDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, no more log to return", consumerId, pReq->epoch,
-             TD_VID(pTq->pVnode), fetchOffset);
-      break;
-    }
-    tqDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d offset %ld msgType %d", consumerId, pReq->epoch,
-           TD_VID(pTq->pVnode), fetchOffset, pHead->msgType);
-    /*int8_t pos = fetchOffset % TQ_BUFFER_SIZE;*/
-    /*pHead = pTopic->pReadhandle->pHead;*/
-    if (pHead->msgType == TDMT_VND_SUBMIT) {
-      SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
-      qTaskInfo_t task = pTopic->buffer.output[workerId].task;
-      ASSERT(task);
-      qSetStreamInput(task, pCont, STREAM_DATA_TYPE_SUBMIT_BLOCK);
-      SArray* pRes = taosArrayInit(0, sizeof(SSDataBlock));
-      while (1) {
-        SSDataBlock* pDataBlock = NULL;
-        uint64_t     ts;
-        if (qExecTask(task, &pDataBlock, &ts) < 0) {
-          ASSERT(false);
-        }
-        if (pDataBlock == NULL) {
-          /*pos = fetchOffset % TQ_BUFFER_SIZE;*/
-          break;
-        }
-
-        taosArrayPush(pRes, pDataBlock);
-      }
-
-      if (taosArrayGetSize(pRes) == 0) {
-        tqDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d skip log %ld since not wanted", consumerId,
-               pReq->epoch, TD_VID(pTq->pVnode), fetchOffset);
-        fetchOffset++;
-        rspV2.skipLogNum++;
-        taosArrayDestroy(pRes);
-        continue;
-      }
-      rspV2.rspOffset = fetchOffset;
-
-      int32_t blockSz = taosArrayGetSize(pRes);
-      int32_t dataBlockStrLen = 0;
-      for (int32_t i = 0; i < blockSz; i++) {
-        SSDataBlock* pBlock = taosArrayGet(pRes, i);
-        dataBlockStrLen += sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
-      }
-
-      void* dataBlockBuf = taosMemoryMalloc(dataBlockStrLen);
-      if (dataBlockBuf == NULL) {
-        pMsg->code = -1;
-        taosMemoryFree(pHead);
-      }
-
-      rspV2.blockData = dataBlockBuf;
-
-      int32_t pos;
-      rspV2.blockPos = taosArrayInit(blockSz, sizeof(int32_t));
-      for (int32_t i = 0; i < blockSz; i++) {
-        pos = 0;
-        SSDataBlock*       pBlock = taosArrayGet(pRes, i);
-        SRetrieveTableRsp* pRetrieve = (SRetrieveTableRsp*)dataBlockBuf;
-        pRetrieve->useconds = 0;
-        pRetrieve->precision = 0;
-        pRetrieve->compressed = 0;
-        pRetrieve->completed = 1;
-        pRetrieve->numOfRows = htonl(pBlock->info.rows);
-        blockCompressEncode(pBlock, pRetrieve->data, &pos, pBlock->info.numOfCols, false);
-        taosArrayPush(rspV2.blockPos, &rspV2.dataLen);
-
-        int32_t totLen = sizeof(SRetrieveTableRsp) + pos;
-        pRetrieve->compLen = htonl(totLen);
-        rspV2.dataLen += totLen;
-        dataBlockBuf = POINTER_SHIFT(dataBlockBuf, totLen);
-      }
-      ASSERT(POINTER_DISTANCE(dataBlockBuf, rspV2.blockData) <= dataBlockStrLen);
-
-      int32_t msgLen = sizeof(SMqRspHead) + tEncodeSMqPollRspV2(NULL, &rspV2);
-      void*   buf = rpcMallocCont(msgLen);
-
-      ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
-      ((SMqRspHead*)buf)->epoch = pReq->epoch;
-      ((SMqRspHead*)buf)->consumerId = consumerId;
-
-      void* msgBodyBuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
-      tEncodeSMqPollRspV2(&msgBodyBuf, &rspV2);
-
-      /*rsp.pBlockData = pRes;*/
-
-      /*taosArrayDestroyEx(rsp.pBlockData, (void (*)(void*))tDeleteSSDataBlock);*/
-      SRpcMsg resp = {.info = pMsg->info, pCont = buf, .contLen = msgLen, .code = 0};
-      tqDebug("vg %d offset %ld msgType %d from consumer %ld (epoch %d) actual rsp", TD_VID(pTq->pVnode), fetchOffset,
-             pHead->msgType, consumerId, pReq->epoch);
-      tmsgSendRsp(&resp);
-      taosMemoryFree(pHead);
-      return 0;
-    } else {
-      taosMemoryFree(pHead);
-      fetchOffset++;
-      rspV2.skipLogNum++;
-    }
-  }
-
-  /*if (blockingTime != 0) {*/
-  /*tqAddClientPusher(pTq->tqPushMgr, pMsg, consumerId, blockingTime);*/
-  /*} else {*/
-
-  rspV2.rspOffset = fetchOffset - 1;
-
-  int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqPollRspV2(NULL, &rspV2);
-  void*   buf = rpcMallocCont(tlen);
-  if (buf == NULL) {
-    pMsg->code = -1;
-    return -1;
-  }
-  ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
-  ((SMqRspHead*)buf)->epoch = pReq->epoch;
-  ((SMqRspHead*)buf)->consumerId = consumerId;
-
-  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
-  tEncodeSMqPollRspV2(&abuf, &rspV2);
-
-  SRpcMsg resp = {.info = pMsg->info, .pCont = buf, .contLen = tlen, .code = 0};
-  tmsgSendRsp(&resp);
-  tqDebug("vg %d offset %ld from consumer %ld (epoch %d) not rsp", TD_VID(pTq->pVnode), fetchOffset, consumerId,
-         pReq->epoch);
-  /*}*/
-
-  return 0;
-}
-#endif
-
 int32_t tqProcessVgDeleteReq(STQ* pTq, char* msg, int32_t msgLen) {
   SMqVDeleteReq* pReq = (SMqVDeleteReq*)msg;
 
@@ -981,7 +711,18 @@ void tqTableSink(SStreamTask* pTask, void* vnode, int64_t ver, void* data) {
   ASSERT(tmsgPutToQueue(&pVnode->msgCb, WRITE_QUEUE, &msg) == 0);
 }
 
-int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int32_t parallel) {
+int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
+  SStreamTask* pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
+  if (pTask == NULL) {
+    return -1;
+  }
+  SDecoder decoder;
+  tDecoderInit(&decoder, (uint8_t*)msg, msgLen);
+  if (tDecodeSStreamTask(&decoder, pTask) < 0) {
+    ASSERT(0);
+  }
+  tDecoderClear(&decoder);
+
   pTask->status = TASK_STATUS__IDLE;
   pTask->inputStatus = TASK_INPUT_STATUS__NORMAL;
   pTask->outputStatus = TASK_OUTPUT_STATUS__NORMAL;
@@ -994,57 +735,19 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int32_t parallel) {
   if (pTask->inputQ == NULL || pTask->outputQ == NULL || pTask->inputQAll == NULL || pTask->outputQAll == NULL)
     goto FAIL;
 
+  // exec
   if (pTask->execType != TASK_EXEC__NONE) {
     // expand runners
-    pTask->exec.numOfRunners = parallel;
-    pTask->exec.runners = taosMemoryCalloc(parallel, sizeof(SStreamRunner));
-    if (pTask->exec.runners == NULL) {
-      goto FAIL;
-    }
-    for (int32_t i = 0; i < parallel; i++) {
-      STqReadHandle* pStreamReader = tqInitSubmitMsgScanner(pTq->pVnode->pMeta);
-      SReadHandle    handle = {
-             .reader = pStreamReader,
-             .meta = pTq->pVnode->pMeta,
-             .pMsgCb = &pTq->pVnode->msgCb,
-             .vnode = pTq->pVnode,
-      };
-      pTask->exec.runners[i].inputHandle = pStreamReader;
-      pTask->exec.runners[i].executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &handle);
-      ASSERT(pTask->exec.runners[i].executor);
-    }
-  }
-
-  if (pTask->sinkType == TASK_SINK__TABLE) {
-    pTask->tbSink.vnode = pTq->pVnode;
-    pTask->tbSink.tbSinkFunc = tqTableSink;
-  }
-
-  return 0;
-FAIL:
-  if (pTask->inputQ) taosCloseQueue(pTask->inputQ);
-  if (pTask->outputQ) taosCloseQueue(pTask->outputQ);
-  if (pTask->inputQAll) taosFreeQall(pTask->inputQAll);
-  if (pTask->outputQAll) taosFreeQall(pTask->outputQAll);
-  if (pTask) taosMemoryFree(pTask);
-  return -1;
-}
-
-int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
-  SStreamTask* pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
-  if (pTask == NULL) {
-    return -1;
-  }
-  SDecoder decoder;
-  tDecoderInit(&decoder, (uint8_t*)msg, msgLen);
-  if (tDecodeSStreamTask(&decoder, pTask) < 0) {
-    ASSERT(0);
-  }
-  tDecoderClear(&decoder);
-
-  // exec
-  if (tqExpandTask(pTq, pTask, 4) < 0) {
-    ASSERT(0);
+    STqReadHandle* pStreamReader = tqInitSubmitMsgScanner(pTq->pVnode->pMeta);
+    SReadHandle    handle = {
+           .reader = pStreamReader,
+           .meta = pTq->pVnode->pMeta,
+           .pMsgCb = &pTq->pVnode->msgCb,
+           .vnode = pTq->pVnode,
+    };
+    pTask->exec.inputHandle = pStreamReader;
+    pTask->exec.executor = qCreateStreamExecTaskInfo(pTask->exec.qmsg, &handle);
+    ASSERT(pTask->exec.executor);
   }
 
   // sink
@@ -1052,8 +755,12 @@ int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
   if (pTask->sinkType == TASK_SINK__SMA) {
     pTask->smaSink.smaSink = smaHandleRes;
   } else if (pTask->sinkType == TASK_SINK__TABLE) {
+    pTask->tbSink.vnode = pTq->pVnode;
+    pTask->tbSink.tbSinkFunc = tqTableSink;
+
     ASSERT(pTask->tbSink.pSchemaWrapper);
     ASSERT(pTask->tbSink.pSchemaWrapper->pSchema);
+
     pTask->tbSink.pTSchema =
         tdGetSTSChemaFromSSChema(&pTask->tbSink.pSchemaWrapper->pSchema, pTask->tbSink.pSchemaWrapper->nCols);
     ASSERT(pTask->tbSink.pTSchema);
@@ -1061,94 +768,17 @@ int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
 
   taosHashPut(pTq->pStreamTasks, &pTask->taskId, sizeof(int32_t), pTask, sizeof(SStreamTask));
 
-  return 0;
-}
-
-int32_t tqProcessStreamTrigger(STQ* pTq, void* data, int32_t dataLen, int32_t workerId) {
-  void* pIter = NULL;
-
-  while (1) {
-    pIter = taosHashIterate(pTq->pStreamTasks, pIter);
-    if (pIter == NULL) break;
-    SStreamTask* pTask = (SStreamTask*)pIter;
-
-    if (streamExecTask(pTask, &pTq->pVnode->msgCb, data, STREAM_DATA_TYPE_SUBMIT_BLOCK, workerId) < 0) {
-      // TODO
-    }
-  }
-  return 0;
-}
-
-#if 0
-int32_t tqProcessStreamTriggerNew(STQ* pTq, SSubmitReq* data) {
-  SStreamDataSubmit* pSubmit = NULL;
-
-  // build data
-  pSubmit = taosAllocateQitem(sizeof(SStreamDataSubmit), DEF_QITEM);
-  if (pSubmit == NULL) return -1;
-  pSubmit->dataRef = taosMemoryMalloc(sizeof(int32_t));
-  if (pSubmit->dataRef == NULL) goto FAIL;
-  *pSubmit->dataRef = 1;
-  pSubmit->data = data;
-  pSubmit->type = STREAM_INPUT__DATA_BLOCK;
-
-  void* pIter = NULL;
-  while (1) {
-    pIter = taosHashIterate(pTq->pStreamTasks, pIter);
-    if (pIter == NULL) break;
-    SStreamTask* pTask = (SStreamTask*)pIter;
-    if (pTask->inputType == TASK_INPUT_TYPE__SUMBIT_BLOCK) {
-      streamEnqueueDataSubmit(pTask, pSubmit);
-      // TODO cal back pressure
-    }
-    // check run
-    int8_t execStatus = atomic_load_8(&pTask->status);
-    if (execStatus == TASK_STATUS__IDLE || execStatus == TASK_STATUS__CLOSING) {
-      SStreamTaskRunReq* pReq = taosMemoryMalloc(sizeof(SStreamTaskRunReq));
-      if (pReq == NULL) continue;
-      // TODO: do we need htonl?
-      pReq->head.vgId = pTq->pVnode->config.vgId;
-      pReq->streamId = pTask->streamId;
-      pReq->taskId = pTask->taskId;
-      SRpcMsg msg = {
-          .msgType = 0,
-          .pCont = pReq,
-          .contLen = sizeof(SStreamTaskRunReq),
-      };
-      tmsgPutToQueue(&pTq->pVnode->msgCb, FETCH_QUEUE, &msg);
-    }
-  }
-  streamDataSubmitRefDec(pSubmit);
-
   return 0;
 FAIL:
-  if (pSubmit) {
-    if (pSubmit->dataRef) {
-      taosMemoryFree(pSubmit->dataRef);
-    }
-    taosFreeQitem(pSubmit);
-  }
+  if (pTask->inputQ) taosCloseQueue(pTask->inputQ);
+  if (pTask->outputQ) taosCloseQueue(pTask->outputQ);
+  if (pTask->inputQAll) taosFreeQall(pTask->inputQAll);
+  if (pTask->outputQAll) taosFreeQall(pTask->outputQAll);
+  if (pTask) taosMemoryFree(pTask);
   return -1;
 }
-#endif
-
-int32_t tqProcessTaskExec(STQ* pTq, char* msg, int32_t msgLen, int32_t workerId) {
-  SStreamTaskExecReq req;
-  tDecodeSStreamTaskExecReq(msg, &req);
-
-  int32_t taskId = req.taskId;
-  ASSERT(taskId);
-
-  SStreamTask* pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  ASSERT(pTask);
-
-  if (streamExecTask(pTask, &pTq->pVnode->msgCb, req.data, STREAM_DATA_TYPE_SSDATA_BLOCK, workerId) < 0) {
-    // TODO
-  }
-  return 0;
-}
 
-int32_t tqProcessStreamTriggerNew(STQ* pTq, SSubmitReq* pReq) {
+int32_t tqProcessStreamTrigger(STQ* pTq, SSubmitReq* pReq) {
   void* pIter = NULL;
   bool  failed = false;
 
@@ -1234,7 +864,7 @@ int32_t tqProcessTaskDispatchReq(STQ* pTq, SRpcMsg* pMsg) {
   SStreamDispatchReq* pReq = pMsg->pCont;
   int32_t             taskId = pReq->taskId;
   SStreamTask*        pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamTaskProcessDispatchReq(pTask, &pTq->pVnode->msgCb, pReq, pMsg);
+  streamProcessDispatchReq(pTask, &pTq->pVnode->msgCb, pReq, pMsg);
   return 0;
 }
 
@@ -1242,7 +872,7 @@ int32_t tqProcessTaskRecoverReq(STQ* pTq, SRpcMsg* pMsg) {
   SStreamTaskRecoverReq* pReq = pMsg->pCont;
   int32_t                taskId = pReq->taskId;
   SStreamTask*           pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamTaskProcessRecoverReq(pTask, &pTq->pVnode->msgCb, pReq, pMsg);
+  streamProcessRecoverReq(pTask, &pTq->pVnode->msgCb, pReq, pMsg);
   return 0;
 }
 
@@ -1250,7 +880,7 @@ int32_t tqProcessTaskDispatchRsp(STQ* pTq, SRpcMsg* pMsg) {
   SStreamDispatchRsp* pRsp = pMsg->pCont;
   int32_t             taskId = pRsp->taskId;
   SStreamTask*        pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamTaskProcessDispatchRsp(pTask, &pTq->pVnode->msgCb, pRsp);
+  streamProcessDispatchRsp(pTask, &pTq->pVnode->msgCb, pRsp);
   return 0;
 }
 
@@ -1258,6 +888,6 @@ int32_t tqProcessTaskRecoverRsp(STQ* pTq, SRpcMsg* pMsg) {
   SStreamTaskRecoverRsp* pRsp = pMsg->pCont;
   int32_t                taskId = pRsp->taskId;
   SStreamTask*           pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
-  streamTaskProcessRecoverRsp(pTask, pRsp);
+  streamProcessRecoverRsp(pTask, pRsp);
   return 0;
 }
diff --git a/source/dnode/vnode/src/vnd/vnodeSvr.c b/source/dnode/vnode/src/vnd/vnodeSvr.c
index 390073025b5998411b334340fa14b8bb0f182161..6d593f7619ef732fe212e42ddfad5149b9379ae2 100644
--- a/source/dnode/vnode/src/vnd/vnodeSvr.c
+++ b/source/dnode/vnode/src/vnd/vnodeSvr.c
@@ -142,13 +142,6 @@ int vnodeProcessWriteReq(SVnode *pVnode, SRpcMsg *pMsg, int64_t version, SRpcMsg
                               pMsg->contLen - sizeof(SMsgHead)) < 0) {
       }
     } break;
-#if 0
-    case TDMT_VND_TASK_WRITE_EXEC: {
-      if (tqProcessTaskExec(pVnode->pTq, POINTER_SHIFT(pMsg->pCont, sizeof(SMsgHead)), pMsg->contLen - sizeof(SMsgHead),
-                            0) < 0) {
-      }
-    } break;
-#endif
     case TDMT_VND_ALTER_VNODE:
       break;
     default:
@@ -231,17 +224,6 @@ int vnodeProcessFetchMsg(SVnode *pVnode, SRpcMsg *pMsg, SQueueInfo *pInfo) {
     case TDMT_VND_TASK_RECOVER_RSP:
       return tqProcessTaskRecoverRsp(pVnode->pTq, pMsg);
 
-#if 0
-    case TDMT_VND_TASK_PIPE_EXEC:
-    case TDMT_VND_TASK_MERGE_EXEC:
-      return tqProcessTaskExec(pVnode->pTq, msgstr, msgLen, 0);
-    case TDMT_VND_STREAM_TRIGGER:{
-      // refactor, avoid double free
-      int code = tqProcessStreamTrigger(pVnode->pTq, pMsg->pCont, pMsg->contLen, 0);
-      pMsg->pCont = NULL;
-      return code;
-    }
-#endif
     case TDMT_VND_QUERY_HEARTBEAT:
       return qWorkerProcessHbMsg(pVnode, pVnode->pQuery, pMsg);
     default:
diff --git a/source/libs/stream/src/tstream.c b/source/libs/stream/src/tstream.c
index 66a661481e8f751b7a3a030bc7b85b38c75040d5..0acec0e4e6102e0a5622abd166bd4c4025d36f69 100644
--- a/source/libs/stream/src/tstream.c
+++ b/source/libs/stream/src/tstream.c
@@ -134,7 +134,7 @@ int32_t streamEnqueueDataBlk(SStreamTask* pTask, SStreamDataBlock* input) {
 }
 
 static int32_t streamTaskExecImpl(SStreamTask* pTask, void* data, SArray* pRes) {
-  void* exec = pTask->exec.runners[0].executor;
+  void* exec = pTask->exec.executor;
 
   // set input
   if (pTask->inputType == STREAM_INPUT__DATA_SUBMIT) {
@@ -171,12 +171,12 @@ static int32_t streamTaskExecImpl(SStreamTask* pTask, void* data, SArray* pRes)
 }
 
 // TODO: handle version
-int32_t streamTaskExec2(SStreamTask* pTask, SMsgCb* pMsgCb) {
+int32_t streamExec(SStreamTask* pTask, SMsgCb* pMsgCb) {
   SArray* pRes = taosArrayInit(0, sizeof(SSDataBlock));
   if (pRes == NULL) return -1;
   while (1) {
     int8_t execStatus = atomic_val_compare_exchange_8(&pTask->status, TASK_STATUS__IDLE, TASK_STATUS__EXECUTING);
-    void*  exec = pTask->exec.runners[0].executor;
+    void*  exec = pTask->exec.executor;
     if (execStatus == TASK_STATUS__IDLE) {
       // first run, from qall, handle failure from last exec
       while (1) {
@@ -278,7 +278,7 @@ FAIL:
   return -1;
 }
 
-int32_t streamTaskSink(SStreamTask* pTask, SMsgCb* pMsgCb) {
+int32_t streamSink(SStreamTask* pTask, SMsgCb* pMsgCb) {
   bool firstRun = 1;
   while (1) {
     SStreamDataBlock* pBlock = NULL;
@@ -407,7 +407,7 @@ int32_t streamTaskEnqueue(SStreamTask* pTask, SStreamDispatchReq* pReq, SRpcMsg*
   return 0;
 }
 
-int32_t streamTaskProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchReq* pReq, SRpcMsg* pRsp) {
+int32_t streamProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchReq* pReq, SRpcMsg* pRsp) {
   // 1. handle input
   streamTaskEnqueue(pTask, pReq, pRsp);
 
@@ -415,172 +415,42 @@ int32_t streamTaskProcessDispatchReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStream
   // 2.1. idle: exec
   // 2.2. executing: return
   // 2.3. closing: keep trying
-  streamTaskExec2(pTask, pMsgCb);
+  streamExec(pTask, pMsgCb);
 
   // 3. handle output
   // 3.1 check and set status
   // 3.2 dispatch / sink
-  streamTaskSink(pTask, pMsgCb);
+  streamSink(pTask, pMsgCb);
 
   return 0;
 }
 
-int32_t streamTaskProcessDispatchRsp(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchRsp* pRsp) {
+int32_t streamProcessDispatchRsp(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDispatchRsp* pRsp) {
   atomic_store_8(&pTask->inputStatus, pRsp->inputStatus);
   if (pRsp->inputStatus == TASK_INPUT_STATUS__BLOCKED) {
     // TODO: init recover timer
   }
   // continue dispatch
-  streamTaskSink(pTask, pMsgCb);
+  streamSink(pTask, pMsgCb);
   return 0;
 }
 
 int32_t streamTaskProcessRunReq(SStreamTask* pTask, SMsgCb* pMsgCb) {
-  streamTaskExec2(pTask, pMsgCb);
-  streamTaskSink(pTask, pMsgCb);
+  streamExec(pTask, pMsgCb);
+  streamSink(pTask, pMsgCb);
   return 0;
 }
 
-int32_t streamTaskProcessRecoverReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamTaskRecoverReq* pReq, SRpcMsg* pMsg) {
+int32_t streamProcessRecoverReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamTaskRecoverReq* pReq, SRpcMsg* pMsg) {
   //
   return 0;
 }
 
-int32_t streamTaskProcessRecoverRsp(SStreamTask* pTask, SStreamTaskRecoverRsp* pRsp) {
+int32_t streamProcessRecoverRsp(SStreamTask* pTask, SStreamTaskRecoverRsp* pRsp) {
   //
   return 0;
 }
 
-int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, int32_t inputType, int32_t workId) {
-  SArray* pRes = NULL;
-  // source
-  if (inputType == STREAM_DATA_TYPE_SUBMIT_BLOCK && pTask->sourceType != TASK_SOURCE__SCAN) return 0;
-
-  // exec
-  if (pTask->execType != TASK_EXEC__NONE) {
-    ASSERT(workId < pTask->exec.numOfRunners);
-    void* exec = pTask->exec.runners[workId].executor;
-    pRes = taosArrayInit(0, sizeof(SSDataBlock));
-    if (pRes == NULL) {
-      return -1;
-    }
-    if (inputType == STREAM_DATA_TYPE_SUBMIT_BLOCK) {
-      qSetStreamInput(exec, input, inputType);
-      while (1) {
-        SSDataBlock* output;
-        uint64_t     ts;
-        if (qExecTask(exec, &output, &ts) < 0) {
-          ASSERT(false);
-        }
-        if (output == NULL) {
-          break;
-        }
-        taosArrayPush(pRes, output);
-      }
-    } else if (inputType == STREAM_DATA_TYPE_SSDATA_BLOCK) {
-      const SArray* blocks = (const SArray*)input;
-      /*int32_t       sz = taosArrayGetSize(blocks);*/
-      /*for (int32_t i = 0; i < sz; i++) {*/
-      /*SSDataBlock* pBlock = taosArrayGet(blocks, i);*/
-      /*qSetStreamInput(exec, pBlock, inputType);*/
-      qSetMultiStreamInput(exec, blocks->pData, blocks->size, STREAM_DATA_TYPE_SSDATA_BLOCK);
-      while (1) {
-        SSDataBlock* output;
-        uint64_t     ts;
-        if (qExecTask(exec, &output, &ts) < 0) {
-          ASSERT(false);
-        }
-        if (output == NULL) {
-          break;
-        }
-        taosArrayPush(pRes, output);
-      }
-      /*}*/
-    } else {
-      ASSERT(0);
-    }
-  } else {
-    ASSERT(inputType == STREAM_DATA_TYPE_SSDATA_BLOCK);
-    pRes = (SArray*)input;
-  }
-
-  if (pRes == NULL || taosArrayGetSize(pRes) == 0) return 0;
-
-  // sink
-  if (pTask->sinkType == TASK_SINK__TABLE) {
-    // blockDebugShowData(pRes);
-    pTask->tbSink.tbSinkFunc(pTask, pTask->tbSink.vnode, 0, pRes);
-  } else if (pTask->sinkType == TASK_SINK__SMA) {
-    pTask->smaSink.smaSink(pTask->ahandle, pTask->smaSink.smaId, pRes);
-    //
-  } else if (pTask->sinkType == TASK_SINK__FETCH) {
-    //
-  } else {
-    ASSERT(pTask->sinkType == TASK_SINK__NONE);
-  }
-
-  // dispatch
-
-  if (pTask->dispatchType == TASK_DISPATCH__INPLACE) {
-    SRpcMsg dispatchMsg = {0};
-    if (streamBuildExecMsg(pTask, pRes, &dispatchMsg, NULL) < 0) {
-      ASSERT(0);
-      return -1;
-    }
-
-    int32_t qType;
-    if (pTask->dispatchMsgType == TDMT_VND_TASK_PIPE_EXEC || pTask->dispatchMsgType == TDMT_SND_TASK_PIPE_EXEC) {
-      qType = FETCH_QUEUE;
-    } else if (pTask->dispatchMsgType == TDMT_VND_TASK_MERGE_EXEC ||
-               pTask->dispatchMsgType == TDMT_SND_TASK_MERGE_EXEC) {
-      qType = MERGE_QUEUE;
-    } else if (pTask->dispatchMsgType == TDMT_VND_TASK_WRITE_EXEC) {
-      qType = WRITE_QUEUE;
-    } else {
-      ASSERT(0);
-    }
-    tmsgPutToQueue(pMsgCb, qType, &dispatchMsg);
-
-  } else if (pTask->dispatchType == TASK_DISPATCH__FIXED) {
-    SRpcMsg dispatchMsg = {0};
-    SEpSet* pEpSet = NULL;
-    if (streamBuildExecMsg(pTask, pRes, &dispatchMsg, &pEpSet) < 0) {
-      ASSERT(0);
-      return -1;
-    }
-
-    tmsgSendReq(pEpSet, &dispatchMsg);
-
-  } else if (pTask->dispatchType == TASK_DISPATCH__SHUFFLE) {
-    SHashObj* pShuffleRes = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
-    if (pShuffleRes == NULL) {
-      return -1;
-    }
-
-    int32_t sz = taosArrayGetSize(pRes);
-    for (int32_t i = 0; i < sz; i++) {
-      SSDataBlock* pDataBlock = taosArrayGet(pRes, i);
-      SArray*      pArray = taosHashGet(pShuffleRes, &pDataBlock->info.groupId, sizeof(int64_t));
-      if (pArray == NULL) {
-        pArray = taosArrayInit(0, sizeof(SSDataBlock));
-        if (pArray == NULL) {
-          return -1;
-        }
-        taosHashPut(pShuffleRes, &pDataBlock->info.groupId, sizeof(int64_t), &pArray, sizeof(void*));
-      }
-      taosArrayPush(pArray, pDataBlock);
-    }
-
-    if (streamShuffleDispatch(pTask, pMsgCb, pShuffleRes) < 0) {
-      return -1;
-    }
-
-  } else {
-    ASSERT(pTask->dispatchType == TASK_DISPATCH__NONE);
-  }
-  return 0;
-}
-
 int32_t tEncodeSStreamTaskExecReq(void** buf, const SStreamTaskExecReq* pReq) {
   int32_t tlen = 0;
   tlen += taosEncodeFixedI64(buf, pReq->streamId);
@@ -607,20 +477,7 @@ SStreamTask* tNewSStreamTask(int64_t streamId) {
   pTask->streamId = streamId;
   pTask->status = TASK_STATUS__IDLE;
 
-  pTask->inputQ = taosOpenQueue();
-  pTask->outputQ = taosOpenQueue();
-  pTask->inputQAll = taosAllocateQall();
-  pTask->outputQAll = taosAllocateQall();
-  if (pTask->inputQ == NULL || pTask->outputQ == NULL || pTask->inputQAll == NULL || pTask->outputQAll == NULL)
-    goto FAIL;
   return pTask;
-FAIL:
-  if (pTask->inputQ) taosCloseQueue(pTask->inputQ);
-  if (pTask->outputQ) taosCloseQueue(pTask->outputQ);
-  if (pTask->inputQAll) taosFreeQall(pTask->inputQAll);
-  if (pTask->outputQAll) taosFreeQall(pTask->outputQAll);
-  if (pTask) taosMemoryFree(pTask);
-  return NULL;
 }
 
 int32_t tEncodeSStreamTask(SEncoder* pEncoder, const SStreamTask* pTask) {
@@ -722,11 +579,7 @@ void tFreeSStreamTask(SStreamTask* pTask) {
   taosCloseQueue(pTask->outputQ);
   // TODO
   if (pTask->exec.qmsg) taosMemoryFree(pTask->exec.qmsg);
-  for (int32_t i = 0; i < pTask->exec.numOfRunners; i++) {
-    qDestroyTask(pTask->exec.runners[i].executor);
-  }
-  taosMemoryFree(pTask->exec.runners);
-  /*taosMemoryFree(pTask->executor);*/
+  qDestroyTask(pTask->exec.executor);
   taosMemoryFree(pTask);
 }