From: Tyler Durden <tylersticky@gmail.com>
To: pgsql-performance@postgresql.org
Subject: Optimize slow query
Date: Wed, 13 Jun 2007 12:41:27 +0100
Message-ID: <ab07320e0706130441y27fa728ei5727436fa9924898@mail.gmail.com> (raw)
Hi,
I've a table with 300 000 records and I'm trying to do a search:
SELECT * FROM addresses WHERE address ILIKE '%Jean Paul%' AND
(l_pc='4250' or r_pc='4250') AND (l_struc='O' or r_struc='O') AND
(prenm ILIKE 'Street')
It performs in 2 seconds in a dual Xeon 2.4mhz with 2Gb of RAM.
I'm using Postgresql 8.1 on ubuntu.
I've indexes on l_pc, r_pc, l_struc,r_struc and prenm (all btrees)
What I'm doing wrong to have such a slow query?
Thanks,
Nuno Mariz
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Subject: Re: Optimize slow query
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