Merge

mysql-test/r/join_outer.result:
  Auto merged
mysql-test/t/join_outer.test:
  Auto merged
sql-common/client.c:
  Auto merged
sql/mysqld.cc:
  Auto merged

1 files changed, 10 insertions, 1 deletions

diff --git a/mysql-test/t/join_outer.test b/mysql-test/t/join_outer.test
index 38b5ef6151f..25344af55b4 100644
--- a/mysql-test/t/join_outer.test
+++ b/mysql-test/t/join_outer.test
@@ -651,4 +651,13 @@ SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE not(0+(t1.a=30 and t2.b=1));
 
 DROP TABLE t1,t2;
 
-
+# Bug #8681: Bad warning message when group_concat() exceeds max length
+set group_concat_max_len=5;
+create table t1 (a int, b varchar(20));
+create table t2 (a int, c varchar(20));
+insert into t1 values (1,"aaaaaaaaaa"),(2,"bbbbbbbbbb");
+insert into t2 values (1,"cccccccccc"),(2,"dddddddddd");
+select group_concat(t1.b,t2.c) from t1 left join t2 using(a) group by t1.a;
+select group_concat(t1.b,t2.c) from t1 inner join t2 using(a) group by t1.a;
+drop table t1, t2;
+set group_concat_max_len=default;