diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index 1bb0194435..8631662c94 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -1407,7 +1407,8 @@ typedef struct SQnodeSplitInfo {
 static bool qndSplFindSplitNode(SSplitContext* pCxt, SLogicSubplan* pSubplan, SLogicNode* pNode,
                                 SQnodeSplitInfo* pInfo) {
   if (QUERY_NODE_LOGIC_PLAN_SCAN == nodeType(pNode) && NULL != pNode->pParent &&
-      ((SScanLogicNode*)pNode)->scanSeq[0] <= 1 && ((SScanLogicNode*)pNode)->scanSeq[1] <= 1) {
+      QUERY_NODE_LOGIC_PLAN_INTERP_FUNC != nodeType(pNode->pParent) && ((SScanLogicNode*)pNode)->scanSeq[0] <= 1 &&
+      ((SScanLogicNode*)pNode)->scanSeq[1] <= 1) {
     pInfo->pSplitNode = pNode;
     pInfo->pSubplan = pSubplan;
     return true;