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From: Tom Lane <tgl@sss.pgh.pa.us>
To: tarcizioab@c3sl.ufpr.br
Cc: pgsql-performance@postgresql.org
Subject: Re: GEQO Benchmark
Date: Wed, 28 May 2008 10:02:30 -0400
Message-ID: <27530.1211983350@sss.pgh.pa.us> (raw)
In-Reply-To: <55311.200.17.202.126.1211982648.squirrel@webmail.inf.ufpr.br>
References: <55311.200.17.202.126.1211982648.squirrel@webmail.inf.ufpr.br>

tarcizioab@c3sl.ufpr.br writes:
> I'm using the TPC-H Benchmark for testing of performance in PostgreSQL.
> But it is composed of only 8 tables, which is not enough to call the GEQO
> algorithm.

See
http://www.postgresql.org/docs/8.3/static/runtime-config-query.html#RUNTIME-CONFIG-QUERY-GEQO

particularly geqo_threshold.

			regards, tom lane

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