Hello list,I fight a strange behavior in mysql versions 5.1.49 and 5.1.51 - maybe a fight against myself ;-)
The following query works exactly as assumed in version 5.1.41 with the given testbed:
select * from test_nkomp_admin where host_id=6 and admin_id="yoda"; /* version 5.1.41 ubuntu 10.04 */mysql> select * from test_nkomp_admin where host_id=6 and admin_id="yoda" ;
+---------+----------+ | host_id | admin_id | +---------+----------+ | 6 | yoda | +---------+----------+ 1 row in set (0.00 sec)whereas in versions 5.1.49 (ubuntu 10.10) and 5.1.51 (package from debian experimental,os ubuntu 10.10) the resultset is: mysql> select * from test_nkomp_admin where host_id=6 and admin_id="yoda" ;
Empty set (0.00 sec) prove: select * from test_nkomp_admin where host_id=6 ; +---------+----------+ | host_id | admin_id | +---------+----------+ | 6 | luke | | 6 | yoda | +---------+----------+ 2 rows in set (0.00 sec)Could anyone prove this behavior, or can give hint what the problem might be ?
/* testbed */ drop table if exists test_nkomp_admin; drop table if exists test_nkomp; drop table if exists test_admin; create table test_nkomp ( host_id int unsigned auto_increment not null primary key )engine=innodb; create table test_admin ( admin_id varchar(15) not null primary key )engine=innodb; create table test_nkomp_admin ( host_id int unsigned, admin_id varchar(15),foreign key (host_id) references test_nkomp (host_id) on delete cascade on update cascade, foreign key (admin_id) references test_admin (admin_id) on delete cascade on update cascade
)engine=innodb; insert into test_nkomp (host_id) values (1),(2),(3),(4),(5),(6);insert into test_admin (admin_id) values ('luke'),('yoda'),('anakin'),('leia'),('r2'),('obi'),('han');
insert into test_nkomp_admin (host_id,admin_id) values (1,'luke'),(1,'yoda'),(1,'anakin'),(1,'leia'),(1,'r2'),(1,'obi'),(1,'han');
insert into test_nkomp_admin (host_id,admin_id) values (2,'luke'),(2,'yoda'),(2,'anakin'),(2,'leia'),(2,'r2'),(2,'obi');
insert into test_nkomp_admin (host_id,admin_id) values (3,'luke'),(3,'yoda'),(3,'anakin'),(3,'leia'),(3,'r2');
insert into test_nkomp_admin (host_id,admin_id) values (4,'luke'),(4,'yoda'),(4,'anakin'),(4,'leia');
insert into test_nkomp_admin (host_id,admin_id) values (5,'luke'),(5,'yoda'),(5,'anakin');
insert into test_nkomp_admin (host_id,admin_id) values (6,'luke'),(6,'yoda');
cheers gregor -- Gregor Kling Abteilung ITS, Sachgebiet DVZ Fachhochschule Giessen Tel: 0641/309-1292 E-Mail: gregor.kl...@its.fh-giessen.de
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