[xwiki-devs] Trying to understand slowness at deletions

Hello fellow developers, At curriki, still running xwiki 1.5, we're having slowness at several places, in particular user-delete which generally takes more than 5 minutes. One of the queries that seem to take very long, from "SHOW FULL PROCESSLIST" is: | 192157 | dev | 63.241.108.241:44327 | currikidev_180_c | Query | 69 | updating | delete from xwikiproperties where xwp_name like 'editbox_%' and xwp_classtype='com.xpn.xwiki.objects.LongProperty' | and indeed I see XWikiHibernateBaseStore to contain: "delete from xwikiproperties where xwp_name like 'editbox_%' and xwp_classtype='com.xpn.xwiki.objects.LongProperty'", and "delete from xwikilongs where xwl_name like 'editbox_%'" the two queries seem to take the longest. What is the reason of these deletions? The big problem is that they contain a like clause which seems to be more developer lazyness then actual need. thanks in advance Paul