Fixed failing test case for the bug#38195.

mysql-test/r/group_min_max.result

@@ -2355,7 +2355,7 @@ a	MIN(b)	MAX(b)	AVG(b)
 DROP TABLE t1;
 create table t1 (a int, b int, primary key (a,b), key `index` (a,b)) engine=MyISAM;
 insert into  t1 (a,b) values (0,0),(0,1),(0,2),(0,3),(0,4),(0,5),(0,6),(0,7),
-(0,8),(0,9),(0,10),(0,11),(0,12),(0,13);
+(0,8),(0,9),(0,10),(0,11);
 insert into t1 (a,b) select a, max(b)+1 from t1 where a = 0 group by a;
 select * from t1;
 a	b
@@ -2372,11 +2372,9 @@ a	b
 0	10
 0	11
 0	12
-0	13
-0	14
 explain extended select sql_buffer_result a, max(b)+1 from t1 where a = 0 group by a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY,index	PRIMARY	4	NULL	6	Using where; Using index for group-by; Using temporary
+1	SIMPLE	t1	range	PRIMARY,index	PRIMARY	4	NULL	5	Using where; Using index for group-by; Using temporary
 Warnings:
 Note	1003	select sql_buffer_result `test`.`t1`.`a` AS `a`,(max(`test`.`t1`.`b`) + 1) AS `max(b)+1` from `test`.`t1` where (`test`.`t1`.`a` = 0) group by `test`.`t1`.`a`
 drop table t1;

mysql-test/t/group_min_max.test

@@ -923,7 +923,7 @@ DROP TABLE t1;
 #
 create table t1 (a int, b int, primary key (a,b), key `index` (a,b)) engine=MyISAM;
 insert into  t1 (a,b) values (0,0),(0,1),(0,2),(0,3),(0,4),(0,5),(0,6),(0,7),
-(0,8),(0,9),(0,10),(0,11),(0,12),(0,13);
+(0,8),(0,9),(0,10),(0,11);
 insert into t1 (a,b) select a, max(b)+1 from t1 where a = 0 group by a;
 select * from t1;
 explain extended select sql_buffer_result a, max(b)+1 from t1 where a = 0 group by a;