diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index 0a688bd67c..b8d293bdf6 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -2020,10 +2020,10 @@ FETCH_NEXT_BLOCK:
           updateInfoDestoryColseWinSBF(pInfo->pUpdateInfo);
           doClearBufferedBlocks(pInfo);
           qDebug("stream scan return empty, consume block %d", totBlockNum);
-          void* buff = NULL;
-          int32_t len = streamScanOperatorEncode(pInfo, &buff);
+          // void* buff = NULL;
+          // int32_t len = streamScanOperatorEncode(pInfo, &buff);
           //todo(liuyao) save buff
-          taosMemoryFreeClear(buff);
+          // taosMemoryFreeClear(buff);
           return NULL;
         }
 
diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index e086328741..d9da8e076c 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -2624,12 +2624,6 @@ static SSDataBlock* doStreamFinalIntervalAgg(SOperatorInfo* pOperator) {
         printDataBlock(pInfo->pDelRes, IS_FINAL_OP(pInfo) ? "interval final" : "interval semi");
         return pInfo->pDelRes;
       }
-
-      doBuildStreamIntervalResult(pOperator, pInfo->pState, pInfo->binfo.pRes, &pInfo->groupResInfo);
-      if (pInfo->binfo.pRes->info.rows != 0) {
-        printDataBlock(pInfo->binfo.pRes, IS_FINAL_OP(pInfo) ? "interval final" : "interval semi");
-        return pInfo->binfo.pRes;
-      }
     }
   }
 
@@ -2674,6 +2668,14 @@ static SSDataBlock* doStreamFinalIntervalAgg(SOperatorInfo* pOperator) {
       removeResults(delWins, pInfo->pUpdatedMap);
       taosArrayAddAll(pInfo->pDelWins, delWins);
       taosArrayDestroy(delWins);
+
+      doBuildDeleteResult(pInfo, pInfo->pDelWins, &pInfo->delIndex, pInfo->pDelRes);
+      if (pInfo->pDelRes->info.rows != 0) {
+        // process the rest of the data
+        printDataBlock(pInfo->pDelRes, IS_FINAL_OP(pInfo) ? "interval final" : "interval semi");
+        return pInfo->pDelRes;
+      }
+
       break;
     } else if (pBlock->info.type == STREAM_GET_ALL && IS_FINAL_OP(pInfo)) {
       getAllIntervalWindow(pInfo->aggSup.pResultRowHashTable, pInfo->pUpdatedMap);