* if you had ORDER BY foo_timestamp DESC, you will now need GROUP BY foo_timestamp, foo_id
* ORDER BY foo_timestamp DESC, foo_id DESC.
*
- * @param string|array $tables Table names, see Database::select
- * @param string|array $fields Fields used in query, see Database::select
- * @param string|array $conds Conditions used in query, see Database::select
- * @param array $join_conds Join conditions, see Database::select
- * @param string|array $options Options, see Database::select
+ * @param string|array &$tables Table names, see Database::select
+ * @param string|array &$fields Fields used in query, see Database::select
+ * @param string|array &$conds Conditions used in query, see Database::select
+ * @param array &$join_conds Join conditions, see Database::select
+ * @param string|array &$options Options, see Database::select
* @param string|array $filter_tag Tag(s) to select on
*
* @throws MWException When unable to determine appropriate JOIN condition for tagging
*
* @see listSoftwareDefinedTags
* @deprecated since 1.28
+ * @return array
*/
public static function listExtensionDefinedTags() {
wfDeprecated( __METHOD__, '1.28' );