From 68cc81c0bc5517e4aa75c74f87fc122a9af26101 Mon Sep 17 00:00:00 2001
From: obdev <obdev@oceanbase.com>
Date: Mon, 19 Dec 2022 10:41:36 +0000
Subject: [PATCH] Fix remove const exec param bug

---
 src/sql/rewrite/ob_transform_post_process.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/sql/rewrite/ob_transform_post_process.cpp b/src/sql/rewrite/ob_transform_post_process.cpp
index af3475fa4..9551e8949 100644
--- a/src/sql/rewrite/ob_transform_post_process.cpp
+++ b/src/sql/rewrite/ob_transform_post_process.cpp
@@ -951,7 +951,9 @@ int ObTransformPostProcess::extract_exec_exprs(ObRawExpr *expr,
         LOG_WARN("failed to pullup exec exprs", K(ret));
       }
     }
-  } else if (OB_FAIL(candi_exprs.push_back(expr))) {
+  } else if (ObOptimizerUtil::find_item(candi_exprs, expr)) {
+    //do nothing
+  } else if(OB_FAIL(candi_exprs.push_back(expr))) {
     LOG_WARN("failed to push back expr", K(ret));
   }
   return ret;