Hi,
I would use a (source,stamp) index, and not a (stamp,source) index to
solve the performance problem.
Jocelyn Fournier
www.mesdiscussions.net
> Brian, can you post the output of EXPLAIN for your query?
> I.e.,
> EXPLAIN ;
>
>
> At first glance, your query should be able to use the 'stamp
Brian, can you post the output of EXPLAIN for your query?
I.e.,
EXPLAIN ;
At first glance, your query should be able to use the 'stamp-source'
index since stamp is the first column indexed. However, I wonder if
wrapping the "NOW() - INTERVAL 14 DAY inside a "DATE()" would help.
MySQL may be ca
-Original Message-
From: Brian Dunning [mailto:[EMAIL PROTECTED]
Sent: Sunday, January 07, 2007 1:12 PM
To: mysql
Subject: Help optimizing this query?
This is the query that's killing me in the slow query log, usually
taking around 20 seconds:
select count(ip) as counted,stamp from i
Brian Dunning wrote:
This is the query that's killing me in the slow query log, usually
taking around 20 seconds:
select count(ip) as counted,stamp from ip_addr where
stamp>=NOW()-interval 14 day and source='sometext' group by stamp
order by stamp desc;
Here is the table:
CREATE TABLE `ip_
