$tables = [
                'ar_actor' => [ 'archive', 'ar_actor', 'ar_id' ],
                'img_actor' => [ 'image', 'img_actor', 'img_name' ],
                'oi_actor' => [ 'oldimage', 'oi_actor', 'oi_archive_name' ], // no index on oi_archive_name!
                'fa_actor' => [ 'filearchive', 'fa_actor', 'fa_id' ],