MySQL Forums
Forum List  »  Optimizer & Parser

Re: Subquery performance improvements: When?
Posted by: Robin Schumacher
Date: February 09, 2006 10:43AM

Olaf -

Thanks for the post. Our optimizer team needs the following info to investigate:

- how much data exists in both tables?
- any indexes?
- if so, what are the counts of unique values for each indexed column?

thanks,

--Robin

Options: ReplyQuote


Subject
Views
Written By
Posted
Re: Subquery performance improvements: When?
2415
February 09, 2006 10:43AM


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.