Last modified: 2010-05-15 15:59:44 UTC

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Bug 11451 - Upgrading from 1.2 to 1.11 fails with Mysql error
Upgrading from 1.2 to 1.11 fails with Mysql error
Status: RESOLVED FIXED
Product: MediaWiki
Classification: Unclassified
Installer (Other open bugs)
1.11.x
All Linux
: Normal normal (vote)
: ---
Assigned To: Nobody - You can work on this!
:
Depends on:
Blocks:
  Show dependency treegraph
 
Reported: 2007-09-25 15:56 UTC by Calum
Modified: 2010-05-15 15:59 UTC (History)
1 user (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Attachments

Description Calum 2007-09-25 15:56:13 UTC
Hello, I am following on from bug 11450, and now have this problem.

Query "ALTER TABLE `imagelinks`
 DROP INDEX il_to,
 ADD INDEX il_to(il_to, il_from)
" failed with error code "Specified key was too long; max key length is 1000 bytes (localhost)".


It did complain about imagelinks (or pagelinks?) not existing, but I reloaded the config/index.php and it went on.
However, it's stopping here.

PS. Thanks for the speed fix to the 11450 problem :)
Comment 1 Brion Vibber 2007-09-26 19:16:02 UTC
Hrm.... there should be no way that index is going to be too long. Even if the utf-8 case it'd be like 769 bytes.

Ah, it looks like 1.2 had an older form of the imagelinks table where il_from is a string, which is longer. The new imagelinks table (with page ID for il_from) is present from 1.3.

The updaters seem to be missing the restructuring of the imagelinks table, though. The links table is restructured via do_old_links_update() (via convertLinks.inc), and the index isn't added until do_backlinking_indices_update() later on.

Probably convertLinks.inc needs to be redone to apply the updates on the imagelinks table as well. Surprised nobody's caught this yet; I guess it sort of works even if you leave the string there, unless the index hits you. ;)
Comment 2 Calum 2007-09-26 19:38:43 UTC
I know I'm being a pain, updating from such an old version - sorry about that.

Are there any SQL commands I can run to get past this stage?
Comment 3 Calum 2007-10-09 11:59:39 UTC
Hello - just wondering if there's any quick fix that I can do to get me past this as my Wiki has been down for quite a while.
Comment 4 Brion Vibber 2007-10-15 23:02:58 UTC
Just redo the imagelinks table from tables.sql.
Comment 5 Calum 2007-10-16 14:41:13 UTC
I've rolled back to the old one now.

What do you mean by "redo"? Create?
Comment 6 Tim Starling 2009-05-14 14:16:48 UTC
Fixed in r50580 for release in MW 1.15. Note that you will have to run maintenance/refreshLinks.php after you install if you want the imagelinks table to be populated. 

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