From 11e3b1d14e86edb9d2cb4b9d229165245b44fa53 Mon Sep 17 00:00:00 2001
From: 2149 <260391947@qq.com>
Date: Fri, 9 Jun 2023 03:12:15 +0000
Subject: [PATCH] Bugfix: convert rownum to limit returns error

---
 src/sql/optimizer/ob_log_plan.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sql/optimizer/ob_log_plan.cpp b/src/sql/optimizer/ob_log_plan.cpp
index d48998d697..74a21b8ea5 100644
--- a/src/sql/optimizer/ob_log_plan.cpp
+++ b/src/sql/optimizer/ob_log_plan.cpp
@@ -10173,7 +10173,7 @@ int ObLogPlan::classify_rownum_exprs(const ObIArray<ObRawExpr*> &rownum_exprs,
                                             const_expr, filter_exprs,
                                             start_exprs, limit_expr))) {
       LOG_WARN("failed to classify rownum expr", K(ret));
-    } else if (const_expr == limit_expr) {
+    } else if (const_expr == limit_expr && T_INVALID == limit_rownum_type) {
       limit_rownum_type = expr_type;
     }
   }