Magnus Manske wrote:
That would be way too expensive, no can do.
"SELECT DISTINCT rev_user,rev_user_text FROM revision" for a single page is too expensive? Come on, article history is probably more expensive than that!
Well, we've got this site called "Wikipedia", which has a lot of pages with tens of thousands of revisions on them. ;)
Whenever we have a feature that allows going wild on all of them and allow people to use it, it bogs down the databases until we have to remove it. You need to take these into account *first*.
-- brion vibber (brion @ pobox.com)