MySQL Forums
Forum List  »  Performance

Re: Customization of Algorithm in MySQL
Posted by: Øystein Grøvlen
Date: March 03, 2014 01:51AM

Hi,

You can use hints to influence the Query Evaluation Plan.

To influence index selection, you can use FORCE/USE/IGNORE INDEX (see http://dev.mysql.com/doc/refman/5.6/en/index-hints.html).

To influence join order, you can use the STRAIGHT_JOIN hint (see http://dev.mysql.com/doc/refman/5.6/en/select.html and http://dev.mysql.com/doc/refman/5.6/en/join.html)

Hope this helps,

Øystein Grøvlen,
Senior Principal Software Engineer,
MySQL Group, Oracle,
Trondheim, Norway

Options: ReplyQuote


Subject
Views
Written By
Posted
Re: Customization of Algorithm in MySQL
750
March 03, 2014 01:51AM


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.