X-Original-To: pgsql-performance@postgresql.org
Received: from spampd.localdomain (postgresql.org [64.49.215.8])
	by postgresql.org (Postfix) with ESMTP
	id B69BB475AE4; Wed, 30 Apr 2003 13:33:47 -0400 (EDT)
Received: from davinci.ethosmedia.com (unknown [209.10.40.251])
	by postgresql.org (Postfix) with ESMTP
	id E6B79475A45; Wed, 30 Apr 2003 13:33:46 -0400 (EDT)
Received: from [66.219.92.2] (HELO temoku)
	by davinci.ethosmedia.com (CommuniGate Pro SMTP 4.0.2)
	with ESMTP id 2998830; Wed, 30 Apr 2003 10:33:45 -0700
Content-Type: text/plain;
  charset="iso-8859-1"
From: Josh Berkus <josh@agliodbs.com>
Reply-To: josh@agliodbs.com
Organization: Aglio Database Solutions
To: "Diehl, Jeffrey" <jdiehl@sandia.gov>, pgsql-sql@postgresql.org,
	pgsql-performance@postgresql.org
Subject: Re: Like search performance.
Date: Wed, 30 Apr 2003 10:33:17 -0700
User-Agent: KMail/1.4.3
References: <B51F0C636E578A4E832D3958690CD73E0130C417@es04snlnt.sandia.gov>
In-Reply-To: <B51F0C636E578A4E832D3958690CD73E0130C417@es04snlnt.sandia.gov>
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Message-Id: <200304301033.18357.josh@agliodbs.com>
X-Spam-Status: No, hits=-22.7 required=5.0
	tests=BAYES_01,IN_REP_TO,REFERENCES,USER_AGENT_KMAIL
	autolearn=ham	version=2.50
X-Spam-Level: 
X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp)
X-Archive-Number: 200304/269
X-Sequence-Number: 1775

Mike,

> I have a fairly large table with a char(20) field in it which I search on
> quite a bit.  The problem is that I tend to do a lot of=20
> "...where field like '%-d%'" type searches on this field.
>=20
> Is there any to speed up this type of search?

Yes.  See the tsearch module in /contrib in your postgresql source.

--=20
-Josh Berkus
 Aglio Database Solutions
 San Francisco