CREATE TABLE /*_*/user_former_groups (
-- Key to user_id
ufg_user int unsigned NOT NULL default 0,
- ufg_group varbinary(32) NOT NULL default ''
+ ufg_group varbinary(255) NOT NULL default ''
) /*$wgDBTableOptions*/;
CREATE UNIQUE INDEX /*i*/ufg_user_group ON /*_*/user_former_groups (ufg_user,ufg_group);