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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Arnaud Lesauvage <thewild@freesurf.fr>
Cc: pgsql-performance@postgresql.org
Subject: Re: Poor performance on very simple query ?
Date: Tue, 03 Oct 2006 10:35:13 -0400
Message-ID: <25424.1159886113@sss.pgh.pa.us> (raw)
In-Reply-To: <45224896.7040708@freesurf.fr>
References: <45224896.7040708@freesurf.fr>

Arnaud Lesauvage <thewild@freesurf.fr> writes:
>    Seq Scan on table1  (cost=0.00..23.69 rows=10 width=35) (actual
> time=0.023..0.734 rows=7 loops=1)
>      Filter: ((gid = 33) OR (gid = 110) OR (gid = 65) OR (gid = 84)
> OR (gid = 92) OR (gid = 94) OR (gid = 13) OR (gid = 7) OR (gid =
> 68) OR (gid = 41))
>    Total runtime: 0.801 ms

This will start using the index as soon as the table gets big enough to
make it worthwhile.

			regards, tom lane



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