Bug #13445 Partitions: crash if key method
Submitted: 23 Sep 2005 17:43 Modified: 20 Jan 2006 10:09
Reporter: Peter Gulutzan Email Updates:
Status: Closed Impact on me:
Category:MySQL Server: Partitions Severity:S3 (Non-critical)
Version:5.1.2-alpha-debug OS:Linux (SUSE 9.2)
Assigned to: Mikael Ronström CPU Architecture:Any

[23 Sep 2005 17:43] Peter Gulutzan
If I use the KEY method of partitioning, and I
have a multi-column key, and I have a few rows
in the table, then SELECT causes a crash.

How to repeat:
mysql> create table tw (s1 int, s2 int, primary key (s1,s2)) engine=innodb partition by key (s2,s1) partitions 4;
Query OK, 0 rows affected (0.02 sec)

mysql> insert into tw values (0,0),(1,1),(2,2),(3,3),(4,4),(5,5),(6,6);
Query OK, 7 rows affected (0.01 sec)
Records: 7  Duplicates: 0  Warnings: 0

mysql> select * from tw where s1 = 4;
ERROR 2013 (HY000): Lost connection to MySQL server during query
[1 Nov 2005 21:44] Mikael Ronström
Small lapse in get_partition_set
[19 Jan 2006 9:02] Mikael Ronström
Patch pushed and will appear in 5.1.6
[20 Jan 2006 10:09] Jon Stephens
Thank you for your bug report. This issue has been committed to our
source repository of that product and will be incorporated into the
next release.

If necessary, you can access the source repository and build the latest
available version, including the bugfix, yourself. More information 
about accessing the source trees is available at

Additional info:

Documented bugfix in 5.1.6 changelog. Closed.