diff --git a/source/libs/executor/src/filloperator.c b/source/libs/executor/src/filloperator.c
index 4b276d4d72e29cf5e18e71371369a56156e6a555..187c8f582afc56e2b8eb9293fd44bafd307a6151 100644
--- a/source/libs/executor/src/filloperator.c
+++ b/source/libs/executor/src/filloperator.c
@@ -147,6 +147,7 @@ static SSDataBlock* doFillImpl(SOperatorInfo* pOperator) {
 
       taosFillSetStartInfo(pInfo->pFillInfo, 0, pInfo->win.ekey);
     } else {
+      pBlock->info.dataLoad = 1;
       blockDataUpdateTsWindow(pBlock, pInfo->primarySrcSlotId);
 
       blockDataCleanup(pInfo->pRes);