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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Evgeny Gridasov <eugrid@fpm.kubsu.ru>
Cc: pgsql-performance@postgresql.org
Subject: Re: one-field index vs. multi-field index planner estimates
Date: Fri, 10 Mar 2006 12:09:19 -0500
Message-ID: <6628.1142010559@sss.pgh.pa.us> (raw)
In-Reply-To: <20060310194545.be002083.eugrid@fpm.kubsu.ru>
References: <6BCB9D8A16AC4241919521715F4D8BCEA35109@algol.sollentuna.se>
	<200603101113.35868.jdevisser@digitalfairway.com>
	<20060310194545.be002083.eugrid@fpm.kubsu.ru>

Evgeny Gridasov <eugrid@fpm.kubsu.ru> writes:
> Recently I've discovered an interesting thing (Postgres version 8.1.3):

Have you ANALYZEd the table since loading it?  What fraction of the rows
have visible = true?

			regards, tom lane

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