1 ALTER TABLE `auctionhouse`
2 MODIFY COLUMN `auctioneerguid` int(11) unsigned NOT NULL default '0',
3 MODIFY COLUMN `itemguid` int(11) unsigned NOT NULL default '0',
4 MODIFY COLUMN `itemowner` int(11) unsigned NOT NULL default '0',
5 MODIFY COLUMN `buyguid` int(11) unsigned NOT NULL default '0';