From 7af14ef896c0516c5caa3b3568e7b01718ecf96e Mon Sep 17 00:00:00 2001
From: chenlinfeng <723609220@qq.com>
Date: Sun, 26 Sep 2021 18:56:40 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E5=86=85=E5=AD=98=E6=9C=AA?=
 =?UTF-8?q?=E5=88=9D=E5=A7=8B=E5=8C=96=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 sql/sql_tmp_table.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sql/sql_tmp_table.cc b/sql/sql_tmp_table.cc
index afb923010cfa..a8134bacf955 100644
--- a/sql/sql_tmp_table.cc
+++ b/sql/sql_tmp_table.cc
@@ -445,7 +445,7 @@ Field *create_tmp_field(THD *thd, TABLE *table, Item *item, Item::Type type,
       DBUG_ASSERT(false);
       break;
   }
-  if (result != nullptr) {
+  if (result != nullptr && thd->parallel_exec) {
     result->extra_length = item->pq_extra_len(group);
   }
   return result;