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From: Gaetano Mendola <mendola@gmail.com>
To: John Beaver <john.e.beaver@gmail.com>
Subject: Re: large tables and simple "= constant" queries using indexes
Date: Thu, 10 Apr 2008 18:18:15 +0200
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In-Reply-To: <47FE27EB.8050804@gmail.com>
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John Beaver wrote:

> - Trying the same constant a second time gave an instantaneous result,
> I'm guessing because of query/result caching.

AFAIK no query/result caching is in place in postgres, what you are experiencing
is OS disk/memory caching.


Regards
Gaetano Mendola

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