diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index 2daf2e2866..c3d407c548 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -2009,7 +2009,7 @@ static int32_t insertSelectSplit(SSplitContext* pCxt, SLogicSubplan* pSubplan) {
     code = splMountSubplan(pNewSubplan, pSubplanChildren);
   }
 
-  //SPLIT_FLAG_SET_MASK(info.pSubplan->splitFlag, SPLIT_FLAG_INSERT_SPLIT);
+  SPLIT_FLAG_SET_MASK(info.pSubplan->splitFlag, SPLIT_FLAG_INSERT_SPLIT);
   ++(pCxt->groupId);
   pCxt->split = true;
   return code;