MySQL Forums
Forum List  »  Optimizer & Parser

Re: MySQL can't find index = really slow query...
Posted by: Alessio Pianigiani
Date: September 25, 2006 09:47AM

What do you mean when you say "MySQL can use only one index"..?

You mean that MySQL try to understand wich index is better between the ones chosen for each table?

And there's a bad news: I can't use .fine as a primary key because it can be NULL (and this is an unchangeable condition...)

any ideas?

Options: ReplyQuote


Subject
Views
Written By
Posted
Re: MySQL can't find index = really slow query...
2056
September 25, 2006 09:47AM


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.