Re: performance advice needed: join vs explicit subselect

From: Karsten Hilbert <Karsten(dot)Hilbert(at)gmx(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: performance advice needed: join vs explicit subselect
Date: 2009-01-27 21:56:52
Message-ID: 20090127215652.GG3820@merkur.hilbert.loc
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On Tue, Jan 27, 2009 at 04:42:02PM -0500, Tom Lane wrote:

> What does EXPLAIN ANALYZE say about it? Also, what is the use-case
> you are concerned about --- selecting the whole view contents, or
> selecting WHERE something-or-other?

Oh, and the use case is to select all the test_results which
belong to a certain patient:

where pk_patient = <scalar>

Karsten
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