From 7587a04d1eafd54cc4bde86f10e3a65a64bfefcf Mon Sep 17 00:00:00 2001
From: Zach41 <zach_41@163.com>
Date: Thu, 17 Oct 2024 17:13:43 +0000
Subject: [PATCH] Add resolve checks for set stmt

---
 src/sql/resolver/dml/ob_select_resolver.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/sql/resolver/dml/ob_select_resolver.cpp b/src/sql/resolver/dml/ob_select_resolver.cpp
index f80d82841..ab39eb989 100644
--- a/src/sql/resolver/dml/ob_select_resolver.cpp
+++ b/src/sql/resolver/dml/ob_select_resolver.cpp
@@ -6167,6 +6167,9 @@ int ObSelectResolver::resolve_win_func_exprs(ObRawExpr *&expr, common::ObIArray<
       if (OB_ISNULL(win_expr)) {
         ret = OB_INVALID_ARGUMENT;
         LOG_WARN("invalid arg", K(ret), K(win_expr));
+      } else if (OB_UNLIKELY(select_stmt->is_set_stmt())) {
+        ret = OB_ERR_AGGREGATE_ORDER_FOR_UNION;
+        LOG_WARN("can't use window function in union stmt", K(ret));
       } else if (OB_ISNULL(agg_expr)) {
       } else if (OB_FAIL(agg_expr->formalize(session_info_))) {
         LOG_WARN("formalize agg expr failed", K(ret));