On Saturday 04 January 2003 14:53, harm wrote: > > Your order by will not use your weg_2 index because, as you stated, > > weg_2 index is on (col1, col2, col3, nr) as a group so it wont be used > > for the individual columns as you need > > > > try to create a separate index on just the nr column, that should be used > > by the orderby clause. This way your weg_5 will be used for the where > > (the 3 col) and the new index will be for the orderby > > There is an index on 'nr', it is the primary key :) > > > This is one of the examples from the manual which is supposed to use the > index for the order by: > > SELECT * FROM t1 WHERE key_part1=constant ORDER BY key_part2 > > Looks like the same situation to me.
I tested it on 4.0.7 and MySQL picks up right index. What is your table structure? -- For technical support contracts, goto https://order.mysql.com/?ref=ensita This email is sponsored by Ensita.net http://www.ensita.net/ __ ___ ___ ____ __ / |/ /_ __/ __/ __ \/ / Victoria Reznichenko / /|_/ / // /\ \/ /_/ / /__ [EMAIL PROTECTED] /_/ /_/\_, /___/\___\_\___/ MySQL AB / Ensita.net <___/ www.mysql.com --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
