fix: invalid interval query result

source/libs/executor/src/timewindowoperator.c

@@ -1037,7 +1037,7 @@ SResultRowPosition addToOpenWindowList(SResultRowInfo* pResultRowInfo, const SRe
 int64_t* extractTsCol(SSDataBlock* pBlock, const SIntervalAggOperatorInfo* pInfo) {
   TSKEY* tsCols = NULL;
 
-  if (pBlock->pDataBlock != NULL && pBlock->info.dataLoad == 1) {
+  if (pBlock->pDataBlock != NULL && pBlock->info.rows > 0) {
     SColumnInfoData* pColDataInfo = taosArrayGet(pBlock->pDataBlock, pInfo->primaryTsIndex);
     tsCols = (int64_t*)pColDataInfo->pData;
     ASSERT(tsCols[0] != 0);