At 22:42 +0100 12/15/02, Dennis Schwerdel wrote:
>I think you did not properly process this request.
The phenomenon you describe below is not a bug in MySQL. The problem
is that you are trying to use an AUTO_INCREMENT column in an unsupported
manner. AUTO_INCREMENT columns are for use only with *positive* integers,
and any attempt to use them otherwise will eventually cause you grief.
(As you've already discovered.) Putting 0 in an AUTO_INCREMENT column
is a bad idea. Don't do it.
>
>Dennis Schwerdel
>
>>Date: Sun, 15 Dec 2002 20:51:14 +0100
>>From: bugs@stripped
>>To: Dennis Schwerdel <mail@stripped>
>>Subject: Re: Bug in auto_increment
>>X-WEBDE-TAG: S
>>Sender: lists@stripped
>>
>>Your message cannot be posted to bugs@stripped because it did not
>>follow the format expected by our spam/off-topic filter. To this list we
>>accept only repeatable bugs reports, meaning that you can describe a
>>set of steps we can follow to repeat the bug on our systems.
>>
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>>you should send your message to mysql@stripped and possibly one of our
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>>
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>>
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>>
>>You have written the following:
>>
>>---start of your message----
>>Hello,
>>I think I've found a bug in the auto_increment feature.
>>
>>I got the following table :
>>
>>CREATE TABLE gebaeude_daten (
>> id int(10) unsigned NOT NULL auto_increment,
>> name varchar(64) NOT NULL default '',
>> kosten int(10) unsigned NOT NULL default '0',
>> produktion mediumint(10) unsigned NOT NULL default '0',
>> max_anzahl smallint(10) unsigned NOT NULL default '0',
>> ticks tinyint(10) unsigned NOT NULL default '0',
>> PRIMARY KEY (id),
>> KEY kosten (kosten),
>> KEY produktion (produktion),
>> KEY max_anzahl (max_anzahl),
>> KEY ticks (ticks)
>>) TYPE=MyISAM;
>>
>>INSERT INTO gebaeude_daten VALUES (0, 'Bank Stufe 1', 1000, 30, 900, 1);
>>
>>The 0 in the id field is bugy.
>>Every time I change the table definition with ALTER, the 0 becomes the next
>>auto-index.
>>For example the last id was 70.
>>Then I added keys with ALTER and 'Bank Stufe 1' was id 71.
>>
>>I am now doing the command "UPDATE gebaeude_daten SET id = 0 WHERE name =
>>'Bank Stufe 1' ;" every 30 min. automatically but that couldn't be the
>>solution.
>>
>>I hope you will fix it or just help me to fix my table.
>>
>>MfG Dennis Schwerdel
>>
>>
>>
>>---end of your message-------
>>
>>MySQL Development Team
>
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