From 0bddf9447f8e7c4f22cc6faf848814fa8059e2dd Mon Sep 17 00:00:00 2001
From: SevenJ-swj <sevenjworkstation@gmail.com>
Date: Thu, 14 Sep 2023 05:47:47 +0000
Subject: [PATCH] fix a deduce index func expr typo

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

diff --git a/src/sql/optimizer/ob_join_order.cpp b/src/sql/optimizer/ob_join_order.cpp
index a4d6afea70..fe46498002 100644
--- a/src/sql/optimizer/ob_join_order.cpp
+++ b/src/sql/optimizer/ob_join_order.cpp
@@ -14078,6 +14078,7 @@ int ObJoinOrder::try_get_generated_col_index_expr(ObRawExpr *qual,
             //probably type deduced failed. do nothing
             LOG_WARN("new qual is not formalized correctly", K(ret), K(*new_qual));
             ret = OB_SUCCESS;
+            new_qual = NULL;
             continue; //do not add this expr.
           }
         } else if (OB_FAIL(new_qual->pull_relation_id())) {