After upgrading the Mediawiki code did you run: maintenance/update.php and maintenance/refreshLinks.php ? -Jim -----Original Message----- From: Eric K [mailto:ek79501@yahoo.com] Sent: Monday, August 25, 2008 9:27 PM To: mediawiki-l(a)lists.wikimedia.org Subject: Re: [Mediawiki-l] Upgraded from 1.9.3 to 1.13.0- got error: Illegalmix of collations Here's what I found. When Mediawiki upgrades, it doesnt seem to care to update the table schemes properly. Here's a sample of what I found:   Old table row specs, for mw_image (this is after the upgrade has been applied from 1.9.3 to 1.13.0): img_size int(8) img_width int(5) img_height int(5)   New table row specs for the same table, mw_image (for a brand new 1.13.0 installation): img_size int(10) img_width int(11) img_height int(11)   The field sizes are different as you can see. New tables have bigger fields but the old ones still contain short fields after the upgrade is applied.This is just an example. The bug that I was getting (illegal mix of collations), was fixed due to the Collation fields being different in the cases for an upgraded MW and a new MW. I also noticed differences in all the other fields as well (Default, Type, Binary, Attributes) for tables rows. Sometimes the differences were significant. Here are some real examples: - length of data field doubled for example, int(5) to int (10) - the Type changed in an upgraded version from "varbinary(255)" to "blob", in a new installation   Usually, Collate was empty for a brand new 1.13.0, while it was latin_bin or latin1_swedish_ci for an upgraded version.   There must be important reasons why changes were made to the rows as versions progressed.   So i guess this is something that should be fixed for upgrading? That means, when an upgrade is being applied, it should update all the row data for each table as well.   Erik   --- On Sat, 8/23/08, Eric K <ek79501(a)yahoo.com> wrote: From: Eric K <ek79501(a)yahoo.com> Subject: [Mediawiki-l] Upgraded from 1.9.3 to 1.13.0- got error: Illegal mix of collations To: mediawiki-l(a)lists.wikimedia.org Date: Saturday, August 23, 2008, 11:30 AM Everything works on my wiki, except when I view the logs for a page, I get this error: A database query syntax error has occurred. This may indicate a bug in the software. The last attempted database query was: (SQL query hidden) from within function "LinkCache::addLinkObj". MySQL returned error "1267: Illegal mix of collations (latin1_bin,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '=' (localhost)". Any ideas on how to fix this? I can go into myPhPAdmin and manipulate tables if needed.   thanks Eric _______________________________________________ MediaWiki-l mailing list MediaWiki-l(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-l _______________________________________________ MediaWiki-l mailing list MediaWiki-l(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-l

Hi Brion, I apologize, I've done the upgrade already, but I will take notes in the next upgrade, follow your directions and will let you know here if I see any differences then. thanks Eric   --- On Tue, 8/26/08, Brion Vibber <brion(a)wikimedia.org> wrote: From: Brion Vibber <brion(a)wikimedia.org> Subject: Re: [Mediawiki-l] Upgraded from 1.9.3 to 1.13.0- got error: Illegal mix of collations To: ek79501(a)yahoo.com, "MediaWiki announcements and site admin list" <mediawiki-l(a)lists.wikimedia.org> Date: Tuesday, August 26, 2008, 10:45 AM -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Eric K wrote: to update the table schemes properly. Here's a sample of what I found: applied from 1.9.3 to 1.13.0): "Sizes" for integer fields are purely imaginary and have no actual effect. We've generally removed them as they just confuse people. Can you provide details of the original schema collation and what MySQL version and schema mode options were in use in your old *and* your new LocalSettings.php? The 1.13 updater should be configuring things properly for your database (but older updaters *did not* always do this correctly). - -- brion