Search: Remove limit on relevance

This commit reverses relevance limit added by commit a9c283ec. This is
necessary because searching for Organization or User name will have low
relevance due to limited size of indexed "document".

include/class.search.php

@@ -384,7 +384,7 @@ class MysqlSearchBackend extends SearchBackend {
             $criteria->extra(array(
                 'tables' => array(
                     str_replace(array(':', '{}'), array(TABLE_PREFIX, $search),
-                    "(SELECT COALESCE(Z3.`object_id`, Z5.`ticket_id`, Z8.`ticket_id`) as `ticket_id`, Z1.relevance FROM (SELECT Z1.`object_id`, Z1.`object_type`, {} AS `relevance` FROM `:_search` Z1 WHERE {} > 0.3 ORDER BY relevance DESC) Z1 LEFT JOIN `:thread_entry` Z2 ON (Z1.`object_type` = 'H' AND Z1.`object_id` = Z2.`id`) LEFT JOIN `:thread` Z3 ON (Z2.`thread_id` = Z3.`id` AND Z3.`object_type` = 'T') LEFT JOIN `:ticket` Z5 ON (Z1.`object_type` = 'T' AND Z1.`object_id` = Z5.`ticket_id`) LEFT JOIN `:user` Z6 ON (Z6.`id` = Z1.`object_id` and Z1.`object_type` = 'U') LEFT JOIN `:organization` Z7 ON (Z7.`id` = Z1.`object_id` AND Z7.`id` = Z6.`org_id` AND Z1.`object_type` = 'O') LEFT JOIN `:ticket` Z8 ON (Z8.`user_id` = Z6.`id`)) Z1"),
+                    "(SELECT COALESCE(Z3.`object_id`, Z5.`ticket_id`, Z8.`ticket_id`) as `ticket_id`, Z1.relevance FROM (SELECT Z1.`object_id`, Z1.`object_type`, {} AS `relevance` FROM `:_search` Z1 WHERE {} ORDER BY relevance DESC) Z1 LEFT JOIN `:thread_entry` Z2 ON (Z1.`object_type` = 'H' AND Z1.`object_id` = Z2.`id`) LEFT JOIN `:thread` Z3 ON (Z2.`thread_id` = Z3.`id` AND Z3.`object_type` = 'T') LEFT JOIN `:ticket` Z5 ON (Z1.`object_type` = 'T' AND Z1.`object_id` = Z5.`ticket_id`) LEFT JOIN `:user` Z6 ON (Z6.`id` = Z1.`object_id` and Z1.`object_type` = 'U') LEFT JOIN `:organization` Z7 ON (Z7.`id` = Z1.`object_id` AND Z7.`id` = Z6.`org_id` AND Z1.`object_type` = 'O') LEFT JOIN `:ticket` Z8 ON (Z8.`user_id` = Z6.`id`)) Z1"),
                 ),
             ));
             $criteria->extra(array('order_by' => array(array(new SqlCode('Z1.relevance', 'DESC')))));