Is InnoDB sorting really THAT slow?

Question

I had all my tables in myISAM but the table level locking was starting to kill me when I had long running update jobs. I converted my primary tables over to InnoDB and now m

Answer 1

MySQL's query optimizer is not good, from my memory. Try a subselect instead of a straight join.

SELECT * FROM (SELECT * FROM `metaward_achiever` 
               WHERE `metaward_achiever`.`award_id` = 1507) a
INNER JOIN `metaward_alias` ON (a.`alias_id` = `metaward_alias`.`id`) 
ORDER BY a.`modified` DESC 
LIMIT 100

Or something like that (untested syntax above).