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From: Greg Smith <gsmith@gregsmith.com>
To: sathiya psql <sathiya.psql@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: count * performance issue
Date: Thu, 6 Mar 2008 08:27:14 -0500 (EST)
Message-ID: <Pine.GSO.4.64.0803060825220.11897@westnet.com> (raw)
In-Reply-To: <f966c2ee0803052306h5e5481bdk489b2c01d0ab930b@mail.gmail.com>
References: <f966c2ee0803052142l6a105678jfe2da92a0d9371@mail.gmail.com>
	<f966c2ee0803052143k4570d771o6c300647d3b987d@mail.gmail.com>
	<20080306060829.GA21084@a-kretschmer.de>
	<bf54be870803052215y5bb56235k5ea05ada1d701022@mail.gmail.com>
	<47CF8EA6.8070503@mark.mielke.cc>
	<20080306063643.GB21084@a-kretschmer.de>
	<f966c2ee0803052247n783dae24i9058d148bd17385e@mail.gmail.com>
	<20080306065750.GD21084@a-kretschmer.de>
	<f966c2ee0803052306h5e5481bdk489b2c01d0ab930b@mail.gmail.com>

On Thu, 6 Mar 2008, sathiya psql wrote:

> any way will you explain., what is this COST, actual time and other 
> stuffs....

There's a long list of links to tools and articles on this subject at 
http://www.postgresqldocs.org/index.php/Using_EXPLAIN

--
* Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD



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