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MDEV-729 lp:998028 - Server crashes on normal shutdown in closefrm after executing a query from MyISAM table

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don't write a key value into the record buffer - a key length can be larger then the record length.
This commit is contained in:
Sergei Golubchik
2013-01-25 14:29:46 +01:00
parent 326d2d56fe
commit 7f208d3c35
3 changed files with 20 additions and 3 deletions
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7
mysql-test/r/group_min_max.result
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@ -2780,4 +2780,11 @@ ORDER BY min_a;
min_a
NULL
DROP TABLE t1;
create table t1 (a int, b varchar(1), key(b,a)) engine=myisam;
insert t1 values (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e'),(6,'f'),(7,'g'),(8,'h'),(null,'i');
select min(a), b from t1 where a=7 or b='z' group by b;
min(a) b
7 g
flush tables;
drop table t1;
End of 5.1 tests

8
mysql-test/t/group_min_max.test
View File

@ -1099,5 +1099,13 @@ ORDER BY min_a;
DROP TABLE t1;
#
# MDEV-729 lp:998028 - Server crashes on normal shutdown in closefrm after executing a query from MyISAM table
#
create table t1 (a int, b varchar(1), key(b,a)) engine=myisam;
insert t1 values (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e'),(6,'f'),(7,'g'),(8,'h'),(null,'i');
select min(a), b from t1 where a=7 or b='z' group by b;
flush tables;
drop table t1;
--echo End of 5.1 tests