refactor: new market DB index

sql_updates.txt

@@ -1,3 +1,6 @@
+-- 27.10.2018 -> SQL optimizations
+ALTER TABLE `s1_route` ADD INDEX `uid-timestamp` (`uid`, `timestamp`);
+
 -- 24.10.2017 -> SQL optimizations
 ALTER TABLE `s1_users` ADD INDEX(`sit1`);
 ALTER TABLE `s1_users` ADD INDEX(`sit2`);

var/db/struct.sql

@@ -1288,7 +1288,8 @@ CREATE TABLE IF NOT EXISTS `%PREFIX%route` (
  KEY `uid` (`uid`),
  KEY `wid` (`wid`),
  KEY `timestamp` (`timestamp`),
- KEY `timeleft` (`timeleft`)
+ KEY `timeleft` (`timeleft`),
+ KEY `uid-timestamp` (`uid`, `timestamp`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
 --