If I have a query like: select field1 from table where field2=0 order by field3 desc limit 30;
and I have keys: key field2 (field2) key field3 (field3) Will MySQL use one key to select and one to order? Or do I need a: key field2_field3 (field2, field3) This is a big table and i don't want to have to alter it unless I need too. thanks, Brian. --------------------------------------------------------------------- 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
