diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 40742087eaee42037320266f7cc7d246f322611f..5d318c8ed619b04a98f804494ea09a4d29f46928 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -3860,23 +3860,28 @@ void doBuildDeleteDataBlock(SOperatorInfo* pOp, SSHashObj* pStDeleted, SSDataBlo
     colDataAppendNULL(pCalEdCol, pBlock->info.rows);
 
     SHashObj* pGroupIdTbNameMap = NULL;
-    if (pOp->operatorType == QUERY_NODE_PHYSICAL_PLAN_STREAM_SEMI_SESSION ||
+    if (pOp->operatorType == QUERY_NODE_PHYSICAL_PLAN_STREAM_SESSION ||
+        pOp->operatorType == QUERY_NODE_PHYSICAL_PLAN_STREAM_SEMI_SESSION ||
         pOp->operatorType == QUERY_NODE_PHYSICAL_PLAN_STREAM_FINAL_SESSION) {
       SStreamSessionAggOperatorInfo* pInfo = pOp->info;
       pGroupIdTbNameMap = pInfo->pGroupIdTbNameMap;
     } else if (pOp->operatorType == QUERY_NODE_PHYSICAL_PLAN_STREAM_STATE) {
       SStreamStateAggOperatorInfo* pInfo = pOp->info;
       pGroupIdTbNameMap = pInfo->pGroupIdTbNameMap;
+    } else {
+      ASSERT(0);
     }
 
     char*            tbname = taosHashGet(pGroupIdTbNameMap, &res->groupId, sizeof(int64_t));
     SColumnInfoData* pTableCol = taosArrayGet(pBlock->pDataBlock, TABLE_NAME_COLUMN_INDEX);
     if (tbname == NULL) {
+      /*printf("\n\n no tbname for group id %" PRId64 "%p %p\n\n", res->groupId, pOp->info, pGroupIdTbNameMap);*/
       colDataAppendNULL(pTableCol, pBlock->info.rows);
     } else {
       char parTbName[VARSTR_HEADER_SIZE + TSDB_TABLE_NAME_LEN];
       STR_WITH_MAXSIZE_TO_VARSTR(parTbName, tbname, sizeof(parTbName));
       colDataAppend(pTableCol, pBlock->info.rows, (const char*)parTbName, false);
+      /*printf("\n\n get tbname %s group id %" PRId64 "\n\n", tbname, res->groupId);*/
     }
     pBlock->info.rows += 1;
   }
@@ -4053,7 +4058,8 @@ static SSDataBlock* doStreamSessionAgg(SOperatorInfo* pOperator) {
     if (pBlock->info.parTbName[0]) {
       taosHashPut(pInfo->pGroupIdTbNameMap, &pBlock->info.groupId, sizeof(int64_t), &pBlock->info.parTbName,
                   TSDB_TABLE_NAME_LEN);
-      /*printf("\n\n put tbname %s\n\n", pBlock->info.parTbName);*/
+      /*printf("\n\n put tbname %s group id %" PRId64 "\n\n into %p %p", pBlock->info.parTbName, pBlock->info.groupId,*/
+      /*pInfo, pInfo->pGroupIdTbNameMap);*/
     }
 
     if (pBlock->info.parTbName[0]) {