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From: Josh Berkus <josh@agliodbs.com>
To: emil@baymountain.com
Cc: John A Meinel <john@arbash-meinel.com>
Cc: Postgresql Performance <pgsql-performance@postgresql.org>
Subject: Re: Planner constants for RAM resident databases
Date: Tue, 5 Jul 2005 14:33:28 -0700
Message-ID: <200507051433.28971.josh@agliodbs.com> (raw)
In-Reply-To: <200507020944.07339.emil@baymountain.com>
References: <200507012159.39041.emil@baymountain.com>
	<42C606AA.8060406@arbash-meinel.com>
	<200507020944.07339.emil@baymountain.com>

Emil,

>   ->  Merge Left Join  (cost=9707.71..13993.52 rows=1276 width=161)
> (actual time=164.423..361.477 rows=49 loops=1)

That would indicate that you need to either increase your statistical 
sampling (SET STATISTICS) or your frequency of running ANALYZE, or both.

-- 
--Josh

Josh Berkus
Aglio Database Solutions
San Francisco



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