reorganize physical plan code

source/libs/planner/src/planPhysiCreater.c

@@ -669,7 +669,7 @@ static int32_t createIntervalPhysiNode(SPhysiPlanContext* pCxt, SNodeList* pChil
   pInterval->slidingUnit = pWindowLogicNode->slidingUnit;
 
   pInterval->pFill = nodesCloneNode(pWindowLogicNode->pFill);
-  if (NULL == pInterval->pFill) {
+  if (NULL != pWindowLogicNode->pFill && NULL == pInterval->pFill) {
     nodesDestroyNode(pInterval);
     return TSDB_CODE_OUT_OF_MEMORY;
   }

source/libs/planner/src/planner.c

@@ -39,6 +39,7 @@ int32_t qCreateQueryPlan(SPlanContext* pCxt, SQueryPlan** pPlan, SArray* pExecNo
   nodesDestroyNode(pLogicNode);
   nodesDestroyNode(pLogicSubplan);
   nodesDestroyNode(pLogicPlan);
+  terrno = code;
   return code;
 }