diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 788464ac66cd178193c0c51d9a037f988c9cfde4..e797508ec06453916f94bdf6436022f1acdf7b39 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -903,7 +903,6 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
   // NOTE: this operator does never check if current status is done or not
   SExecTaskInfo*        pTaskInfo = pOperator->pTaskInfo;
   SStreamBlockScanInfo* pInfo = pOperator->info;
-  int32_t               rows = 0;
 
   pTaskInfo->code = pOperator->fpSet._openFn(pOperator);
   if (pTaskInfo->code != TSDB_CODE_SUCCESS || pOperator->status == OP_EXEC_DONE) {
@@ -1023,9 +1022,6 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
         pTaskInfo->code = terrno;
         return NULL;
       }
-
-      rows = pBlockInfo->rows;
-
       // currently only the tbname pseudo column
       if (pInfo->numOfPseudoExpr > 0) {
         addTagPseudoColumnData(&pInfo->readHandle, pInfo->pPseudoExpr, pInfo->numOfPseudoExpr, pInfo->pRes);
@@ -1033,14 +1029,16 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
 
       doFilter(pInfo->pCondition, pInfo->pRes);
       blockDataUpdateTsWindow(pInfo->pRes, pInfo->primaryTsIndex);
-      break;
+      if (pBlockInfo->rows > 0) {
+        break;
+      }
     }
 
     // record the scan action.
     pInfo->numOfExec++;
     pOperator->resultInfo.totalRows += pBlockInfo->rows;
 
-    if (rows == 0) {
+    if (pBlockInfo->rows == 0) {
       pOperator->status = OP_EXEC_DONE;
     } else if (pInfo->pUpdateInfo) {
       pInfo->tsArrayIndex = 0;
@@ -1056,7 +1054,7 @@ static SSDataBlock* doStreamBlockScan(SOperatorInfo* pOperator) {
       }
     }
 
-    return (rows == 0) ? NULL : pInfo->pRes;
+    return (pBlockInfo->rows == 0) ? NULL : pInfo->pRes;
   }
 }
 
diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 63285daa3a068fe3e66d39690c7bacf423cb758f..ad72fd26af4c163327387323db154035eb10ebbc 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -1270,7 +1270,8 @@ static int32_t getAllIntervalWindow(SHashObj* pHashMap, SArray* resWins) {
 }
 
 bool isCloseWindow(STimeWindow *pWin, STimeWindowAggSupp* pSup) {
-  return pWin->ekey < pSup->maxTs - pSup->waterMark;
+  ASSERT(pSup->maxTs == INT64_MIN || pSup->maxTs > 0);
+  return pSup->maxTs != INT64_MIN && pWin->ekey < pSup->maxTs - pSup->waterMark;
 }
 
 static int32_t closeIntervalWindow(SHashObj* pHashMap, STimeWindowAggSupp* pSup, SInterval* pInterval,
@@ -2141,7 +2142,9 @@ void compactFunctions(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx, int3
 static void rebuildIntervalWindow(SStreamFinalIntervalOperatorInfo* pInfo, SExprSupp* pSup, SArray* pWinArray, int32_t groupId,
                                   int32_t numOfOutput, SExecTaskInfo* pTaskInfo) {
   int32_t size = taosArrayGetSize(pWinArray);
-  ASSERT(pInfo->pChildren);
+  if (!pInfo->pChildren) {
+    return;
+  }
   for (int32_t i = 0; i < size; i++) {
     STimeWindow* pParentWin = taosArrayGet(pWinArray, i);
     SResultRow*  pCurResult = NULL;
@@ -2339,6 +2342,7 @@ static SSDataBlock* doStreamFinalIntervalAgg(SOperatorInfo* pOperator) {
       SStreamFinalIntervalOperatorInfo* pChInfo = pChildOp->info;
       setInputDataBlock(pChildOp, pChildOp->exprSupp.pCtx, pBlock, pChInfo->order, MAIN_SCAN, true);
       doHashInterval(pChildOp, pBlock, pBlock->info.groupId, NULL);
+      pChInfo->twAggSup.maxTs = TMAX(pChInfo->twAggSup.maxTs, pBlock->info.window.ekey);
     }
     maxTs = TMAX(maxTs, pBlock->info.window.ekey);
   }
@@ -2406,7 +2410,7 @@ SOperatorInfo* createStreamFinalIntervalOperatorInfo(SOperatorInfo* downstream,
   initResultRowInfo(&pInfo->binfo.resultRowInfo);
   pInfo->pChildren = NULL;
   if (numOfChild > 0) {
-    pInfo->pChildren = taosArrayInit(numOfChild, sizeof(SOperatorInfo));
+    pInfo->pChildren = taosArrayInit(numOfChild, sizeof(void *));
     for (int32_t i = 0; i < numOfChild; i++) {
       SOperatorInfo* pChildOp = createStreamFinalIntervalOperatorInfo(NULL, pPhyNode, pTaskInfo, 0);
       if (pChildOp) {