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-rw-r--r--src/backend/optimizer/plan/subselect.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c
index 3650e8329d..b02fcb9bfe 100644
--- a/src/backend/optimizer/plan/subselect.c
+++ b/src/backend/optimizer/plan/subselect.c
@@ -2688,6 +2688,7 @@ finalize_plan(PlannerInfo *root, Plan *plan,
case T_Hash:
case T_Material:
case T_Sort:
+ case T_IncrementalSort:
case T_Unique:
case T_SetOp:
case T_Group: