Re: Caching of Queries

From: "Jim C(dot) Nasby" <decibel(at)decibel(dot)org>
To: Matt Clark <matt(at)ymogen(dot)net>
Cc: Postgresql Performance <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Caching of Queries
Date: 2004-10-01 15:13:03
Message-ID: 20041001151303.GU1297@decibel.org
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On Fri, Oct 01, 2004 at 06:43:42AM +0100, Matt Clark wrote:
>
> >If you're not using a connection pool of some kind then you might as
> >well forget query plan caching, because your connect overhead will swamp
> >the planning cost. This does not mean you have to use something like
> >pgpool (which makes some rather questionable claims IMO); any decent web
> >application language/environment will support connection pooling.
> >
> >
> Hmm, a question of definition - there's a difference between a pool and
> a persistent connection. Pretty much all web apps have one connection
> per process, which is persistent (i.e. not dropped and remade for each
> request), but not shared between processes, therefore not pooled.

OK, that'd work too... the point is if you're re-connecting all the time
it doesn't really matter what else you do for performance.
--
Jim C. Nasby, Database Consultant decibel(at)decibel(dot)org
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