| Bug #19025 | mysqldump doesn't correctly dump "auto_increment = [int]" | ||
|---|---|---|---|
| Submitted: | 11 Apr 2006 22:10 | Modified: | 17 May 2006 18:27 | 
| Reporter: | Torrey Hoffman | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server | Severity: | S2 (Serious) | 
| Version: | 5.0.15, 4.1.18 | OS: | pc-linux-gnu (i686) | 
| Assigned to: | Tatiana Azundris Nuernberg | CPU Architecture: | Any | 
   [12 Apr 2006 8:39]
   Hartmut Holzgraefe        
  The same is true for SHOW CREATE TABLE, the initial auto_increment value is not shown test case: drop table if exists t1; create table t1 ( i int auto_increment primary key) auto_increment=1000; show create table t1;
   [20 Apr 2006 23:08]
   Bugs System        
  A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/5233
   [22 Apr 2006 1:10]
   Bugs System        
  A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/5329
   [22 Apr 2006 14:03]
   Bugs System        
  A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/5338
   [24 Apr 2006 20:12]
   Bugs System        
  A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/5429
   [28 Apr 2006 6:09]
   Bugs System        
  A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/5668
   [15 May 2006 14:06]
   Tatiana Azundris Nuernberg        
  fixed in 4.1.20, 5.0.22
   [17 May 2006 18:27]
   Paul DuBois        
  Noted in 4.1.20, 5.0.22 changelogs. For a table with an <literal>AUTO_INCREMENT</literal> column, <literal>SHOW CREATE TABLE</literal> now shows the next <literal>AUTO_INCREMENT</literal> value to be generated.
   [1 Nov 2007 16:28]
   Richard Fearn        
  To prevent any confusion - this bug was fixed in 5.0.23, not 5.0.22. It's mentioned in the 5.0.23 changelog: http://dev.mysql.com/doc/refman/5.0/en/news-5-0-23.html


Description: We are building a database cluster / replication setup. Some of our tables have AUTO_INCREMENT values greater than 1. For instance (simplified a bit from reality) we create a table like this: CREATE TABLE `port_group` ( port_group_id int(10) unsigned NOT NULL auto_increment, port_group_name varchar(255) default NULL, PRIMARY KEY (port_group_id), KEY port_group_managed(port_group_managed) ) TYPE=MyISAM AUTO_INCREMENT = 1000; When setting up the cluster, we use mysqldump and copy the dump file from the master to the slave, as described in the mysql manual. But the mysql dump file for this table will look like this: CREATE TABLE `sal_port_group` ( `port_group_id` int(10) unsigned NOT NULL auto_increment, `port_group_name` varchar(255) collate latin1_general_ci default NULL, PRIMARY KEY (`port_group_id`), KEY `port_group_managed` (`port_group_managed`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; As you can see, the AUTO_INCREMENT = 1000 is missing. So the cluster setup fails. How to repeat: Create a table with AUTO_INCREMENT = 1000. Use mysqldump and look at the output. The AUTO_INCREMENT is not dumped. Suggested fix: Include AUTO_INCREMENT in mysqldump output.