Dear MySQL forum. I have performance problems when using "left join x" combined with "where x.y is null", in particularily when combining three tables this way.
Please contact me by e-mail if you are familiar with these issues and know how to eliminate slow queries. I would really appreciate your help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=arch...@jab.org
