From: Dan Nelson Date: August 25 2003 7:52pm Subject: Re: Optimize Question List-Archive: http://lists.mysql.com/mysql/148463 Message-Id: <20030825195237.GD26367@dan.emsphone.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In the last episode (Aug 25), Patrick Crowley said: > I'm running 3.23.52 locally, but I just noticed my production server > is running 4.0.12. > > Given the complexity of this query, should I use subqueries instead > of joins? Would that make any difference? The subquery equivalent to your joins should be processed exactly the same way (barring optimizer bugs). You would have to use 4.1.0 to get subqueries anyway. -- Dan Nelson dnelson@stripped