MySQL Forums
Forum List  »  Performance

Re: multi-part index and when it is used?
Posted by: James Day
Date: January 14, 2005 04:05PM

In addition to what Jonathan said, you might also experiment with the field order in a multi-column index. It can sometimes make a substantial difference.

Commencing with MySQL version 5.0.0 there is now some capability to use multiple indexes for a single instance of a table. See Index Merge Optimization . It's still useful to consider the old rule though, because it's often applicable.

Options: ReplyQuote

Written By
Re: multi-part index and when it is used?
January 14, 2005 04:05PM

Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.