+ $tables = [ 'recentchanges' ];
+ $joins = [];
+ if ( $wgActorTableSchemaMigrationStage & SCHEMA_COMPAT_READ_OLD ) {
+ $userCond = 'rc_user_text = user_name';
+ } else {
+ $tables[] = 'actor';
+ $joins['actor'] = [ 'JOIN', 'rc_actor = actor_id' ];
+ $userCond = 'actor_user = user_id';
+ }