+ # query optimization for history stub dumps
+ if ( $this->text == WikiExporter::STUB && $orderRevs ) {
+ $tables = [ 'revision', 'page' ];
+ $opts[] = 'STRAIGHT_JOIN';
+ $opts['ORDER BY'] = [ 'rev_page ASC', 'rev_id ASC' ];
+ $opts['USE INDEX']['revision'] = 'rev_page_id';
+ $join['page'] = [ 'INNER JOIN', 'rev_page=page_id' ];
+ } else {
+ $join['revision'] = [ 'INNER JOIN', 'page_id=rev_page' ];
+ }