Does the where clause contain the order by columns? If not, then you will have a filesort no matter what.
On Wed, 24 Mar 2004, Henrik Schröder wrote: > Hi all, > > I have a table of users which contains a lot of information, and also a > column called membershiptype which can either be 0, 1, or 2. This table is > used a lot in various searches, and all results should be ordered by > membership type, but the order should not be 0-1-2, but instead 1-2-0. > Currently, this is achieved like this: > > SELECT ... ORDER BY (membershiptype <> 1) ASC, (membershiptype <> 2) ASC, > login ASC > > ...which is rather ugly, and forces MySQL to create a temp table with tthe > calculated expressions and then re-sort the result using these. Since this > query is used a lot, it would be nice if I could get rid of this. I'm > completely stumped. Any ideas? > > No, I did not choose the sort order. No, I can not change the values used. > Yes, it has to be this sort order. :-) > > > /Henrik Schröder > > -- > MySQL General Mailing List > For list archives: http://lists.mysql.com/mysql > To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
