-- with particular permissions. A user will have the combined
-- permissions of any group they're explicitly in, plus
-- the implicit '*' and 'user' groups.
- ug_group varbinary(255) NOT NULL default ''
+ ug_group varbinary(255) NOT NULL default '',
+
+ -- Time at which the user group membership will expire. Set to
+ -- NULL for a non-expiring (infinite) membership.
+ ug_expiry varbinary(14) NULL default NULL,
+
+ PRIMARY KEY (ug_user, ug_group)
) /*$wgDBTableOptions*/;
-CREATE UNIQUE INDEX /*i*/ug_user_group ON /*_*/user_groups (ug_user,ug_group);
CREATE INDEX /*i*/ug_group ON /*_*/user_groups (ug_group);
+CREATE INDEX /*i*/ug_expiry ON /*_*/user_groups (ug_expiry);
-- Stores the groups the user has once belonged to.
-- The user may still belong to these groups (check user_groups).