diff --git a/include/common/tdatablock.h b/include/common/tdatablock.h
index 1d280b5d6b..cbfd1efb84 100644
--- a/include/common/tdatablock.h
+++ b/include/common/tdatablock.h
@@ -233,7 +233,7 @@ int32_t blockDataSort(SSDataBlock* pDataBlock, SArray* pOrderInfo);
  * @brief find how many rows already in order start from first row
  */
 int32_t blockDataGetSortedRows(SSDataBlock* pDataBlock, SArray* pOrderInfo);
-void    blockDataCheck(const SSDataBlock* pDataBlock);
+void    blockDataCheck(const SSDataBlock* pDataBlock, bool forceChk);
 
 int32_t colInfoDataEnsureCapacity(SColumnInfoData* pColumn, uint32_t numOfRows, bool clearPayload);
 int32_t blockDataEnsureCapacity(SSDataBlock* pDataBlock, uint32_t numOfRows);
diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index 840434a351..6e4162268d 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -731,6 +731,10 @@ int32_t blockDataMergeNRows(SSDataBlock* pDest, const SSDataBlock* pSrc, int32_t
 }
 
 void blockDataShrinkNRows(SSDataBlock* pBlock, int32_t numOfRows) {
+  if (numOfRows == 0) {
+    return;
+  }
+  
   if (numOfRows >= pBlock->info.rows) {
     blockDataCleanup(pBlock);
     return;
@@ -2936,7 +2940,7 @@ int32_t buildCtbNameByGroupIdImpl(const char* stbFullName, uint64_t groupId, cha
 
 // return length of encoded data, return -1 if failed
 int32_t blockEncode(const SSDataBlock* pBlock, char* data, int32_t numOfCols) {
-  blockDataCheck(pBlock);
+  blockDataCheck(pBlock, false);
 
   int32_t dataLen = 0;
 
@@ -3180,7 +3184,7 @@ int32_t blockDecode(SSDataBlock* pBlock, const char* pData, const char** pEndPos
 
   *pEndPos = pStart;
 
-  blockDataCheck(pBlock);
+  blockDataCheck(pBlock, false);
 
   return code;
 }
@@ -3392,14 +3396,14 @@ int32_t blockDataGetSortedRows(SSDataBlock* pDataBlock, SArray* pOrderInfo) {
   return nextRowIdx;
 }
 
-void blockDataCheck(const SSDataBlock* pDataBlock) {
+void blockDataCheck(const SSDataBlock* pDataBlock, bool forceChk) {
   if (NULL == pDataBlock || pDataBlock->info.rows == 0) {
     return;
   }
 
   ASSERT(pDataBlock->info.rows > 0);
 
-  if (!pDataBlock->info.dataLoad) {
+  if (!pDataBlock->info.dataLoad && !forceChk) {
     return;
   }
 
@@ -3457,3 +3461,4 @@ void blockDataCheck(const SSDataBlock* pDataBlock) {
   return;
 }
 
+
diff --git a/source/libs/executor/src/dynqueryctrloperator.c b/source/libs/executor/src/dynqueryctrloperator.c
index 44e8a3cb8a..aa0cc215df 100644
--- a/source/libs/executor/src/dynqueryctrloperator.c
+++ b/source/libs/executor/src/dynqueryctrloperator.c
@@ -528,6 +528,7 @@ static void seqJoinLaunchNewRetrieveImpl(SOperatorInfo* pOperator, SSDataBlock**
   qDebug("%s dynamic post task begin", GET_TASKID(pOperator->pTaskInfo));
   code = pOperator->pDownstream[1]->fpSet.getNextExtFn(pOperator->pDownstream[1], pParam, ppRes);
   if (*ppRes && (code == 0)) {
+    blockDataCheck(*ppRes, false);
     pPost->isStarted = true;
     pStbJoin->execInfo.postBlkNum++;
     pStbJoin->execInfo.postBlkRows += (*ppRes)->info.rows;
diff --git a/source/libs/executor/src/executor.c b/source/libs/executor/src/executor.c
index 9e33a3d890..cca1895a85 100644
--- a/source/libs/executor/src/executor.c
+++ b/source/libs/executor/src/executor.c
@@ -692,8 +692,10 @@ int32_t qExecTaskOpt(qTaskInfo_t tinfo, SArray* pResList, uint64_t* useconds, bo
   if (pTaskInfo->pOpParam && !pTaskInfo->paramSet) {
     pTaskInfo->paramSet = true;
     code = pTaskInfo->pRoot->fpSet.getNextExtFn(pTaskInfo->pRoot, pTaskInfo->pOpParam, &pRes);
+    blockDataCheck(pRes, false);
   } else {
     code = pTaskInfo->pRoot->fpSet.getNextFn(pTaskInfo->pRoot, &pRes);
+    blockDataCheck(pRes, false);
   }
 
   QUERY_CHECK_CODE(code, lino, _end);
@@ -740,6 +742,7 @@ int32_t qExecTaskOpt(qTaskInfo_t tinfo, SArray* pResList, uint64_t* useconds, bo
     }
 
     code = pTaskInfo->pRoot->fpSet.getNextFn(pTaskInfo->pRoot, &pRes);
+    blockDataCheck(pRes, false);
     QUERY_CHECK_CODE(code, lino, _end);
   }
 
@@ -839,6 +842,8 @@ int32_t qExecTask(qTaskInfo_t tinfo, SSDataBlock** pRes, uint64_t* useconds) {
     qError("%s failed at line %d, code:%s %s", __func__, lino, tstrerror(code), GET_TASKID(pTaskInfo));
   }
 
+  blockDataCheck(*pRes, false);
+
   uint64_t el = (taosGetTimestampUs() - st);
 
   pTaskInfo->cost.elapsedTime += el;
diff --git a/source/libs/executor/src/executorInt.c b/source/libs/executor/src/executorInt.c
index 00138d6871..c8ec1e8fcc 100644
--- a/source/libs/executor/src/executorInt.c
+++ b/source/libs/executor/src/executorInt.c
@@ -617,6 +617,8 @@ int32_t doFilter(SSDataBlock* pBlock, SFilterInfo* pFilterInfo, SColMatchInfo* p
   code = TSDB_CODE_SUCCESS;
 
 _err:
+  blockDataCheck(pBlock, true);
+
   colDataDestroy(p);
   taosMemoryFree(p);
   return code;
diff --git a/source/libs/executor/src/groupcacheoperator.c b/source/libs/executor/src/groupcacheoperator.c
index 1796aa7b64..990c9322b7 100644
--- a/source/libs/executor/src/groupcacheoperator.c
+++ b/source/libs/executor/src/groupcacheoperator.c
@@ -733,6 +733,8 @@ static FORCE_INLINE int32_t getBlkFromDownstreamOperator(struct SOperatorInfo* p
     }
   }
 
+  blockDataCheck(pBlock, false);
+
   *ppRes = pBlock;
   return code;
 }
diff --git a/source/libs/executor/src/mergejoinoperator.c b/source/libs/executor/src/mergejoinoperator.c
index 90c2248c12..c29c49e280 100644
--- a/source/libs/executor/src/mergejoinoperator.c
+++ b/source/libs/executor/src/mergejoinoperator.c
@@ -474,8 +474,11 @@ int32_t mJoinCopyMergeMidBlk(SMJoinMergeCtx* pCtx, SSDataBlock** ppMid, SSDataBl
     pCtx->midRemains = false;
   } else {
     int32_t copyRows = pMore->info.capacity - pMore->info.rows;
-    MJ_ERR_RET(blockDataMergeNRows(pMore, pLess, pLess->info.rows - copyRows, copyRows));
-    blockDataShrinkNRows(pLess, copyRows);
+    if (copyRows > 0) {
+      MJ_ERR_RET(blockDataMergeNRows(pMore, pLess, pLess->info.rows - copyRows, copyRows));
+      blockDataShrinkNRows(pLess, copyRows);
+    }
+    
     pCtx->midRemains = true;
   }
 
@@ -1742,6 +1745,7 @@ int32_t mJoinMainProcess(struct SOperatorInfo* pOperator, SSDataBlock** pResBloc
   if (pBlock && pBlock->info.rows > 0) {
     *pResBlock = pBlock;
   }
+
   return code;
 }
 
diff --git a/source/libs/executor/src/mergeoperator.c b/source/libs/executor/src/mergeoperator.c
index 7357329ca6..c94a330dbc 100644
--- a/source/libs/executor/src/mergeoperator.c
+++ b/source/libs/executor/src/mergeoperator.c
@@ -66,6 +66,7 @@ static int32_t sortMergeloadNextDataBlock(void* param, SSDataBlock** ppBlock);
 int32_t sortMergeloadNextDataBlock(void* param, SSDataBlock** ppBlock) {
   SOperatorInfo* pOperator = (SOperatorInfo*)param;
   int32_t code = pOperator->fpSet.getNextFn(pOperator, ppBlock);
+  blockDataCheck(*ppBlock, false);
   return code;
 }
 
@@ -524,6 +525,7 @@ int32_t doMultiwayMerge(SOperatorInfo* pOperator, SSDataBlock** pResBlock) {
 
   if ((*pResBlock) != NULL) {
     pOperator->resultInfo.totalRows += (*pResBlock)->info.rows;
+    blockDataCheck(*pResBlock, false);
   } else {
     setOperatorCompleted(pOperator);
   }
diff --git a/source/libs/executor/src/operator.c b/source/libs/executor/src/operator.c
index de478a146f..cb1149d8a3 100644
--- a/source/libs/executor/src/operator.c
+++ b/source/libs/executor/src/operator.c
@@ -868,14 +868,14 @@ int32_t setOperatorParams(struct SOperatorInfo* pOperator, SOperatorParam* pInpu
 SSDataBlock* getNextBlockFromDownstream(struct SOperatorInfo* pOperator, int32_t idx) {
   SSDataBlock* p = NULL;
   int32_t code = getNextBlockFromDownstreamImpl(pOperator, idx, true, &p);
-  blockDataCheck(p);
+  blockDataCheck(p, false);
   return (code == 0)? p:NULL;
 }
 
 SSDataBlock* getNextBlockFromDownstreamRemain(struct SOperatorInfo* pOperator, int32_t idx) {
   SSDataBlock* p = NULL;
   int32_t code = getNextBlockFromDownstreamImpl(pOperator, idx, false, &p);
-  blockDataCheck(p);
+  blockDataCheck(p, false);
   return (code == 0)? p:NULL;
 }
 
diff --git a/source/libs/executor/src/sortoperator.c b/source/libs/executor/src/sortoperator.c
index 9b659ac761..27ae5e7281 100644
--- a/source/libs/executor/src/sortoperator.c
+++ b/source/libs/executor/src/sortoperator.c
@@ -328,7 +328,9 @@ static int32_t getSortedBlockData(SSortHandle* pHandle, SSDataBlock* pDataBlock,
 
 int32_t loadNextDataBlock(void* param, SSDataBlock** ppBlock) {
   SOperatorInfo* pOperator = (SOperatorInfo*)param;
-  return pOperator->fpSet.getNextFn(pOperator, ppBlock);
+  int32_t code = pOperator->fpSet.getNextFn(pOperator, ppBlock);
+  blockDataCheck(*ppBlock, false);
+  return code;
 }
 
 // todo refactor: merged with fetch fp
@@ -611,6 +613,7 @@ int32_t fetchNextGroupSortDataBlock(void* param, SSDataBlock** ppBlock) {
     QUERY_CHECK_CODE(code, lino, _end);
 
     if (block != NULL) {
+      blockDataCheck(block, false);
       if (block->info.id.groupId == grpSortOpInfo->currGroupId) {
         grpSortOpInfo->childOpStatus = CHILD_OP_SAME_GROUP;
         *ppBlock = block;