From: Jim C. Nasby <jnasby@pervasive.com>
To: luchot <luchot@voila.fr>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Query parallelism
Date: Mon, 27 Mar 2006 08:31:48 -0600
Message-ID: <20060327143147.GU80726@pervasive.com> (raw)
In-Reply-To: <16175346.1143469525456.JavaMail.www@wwinf4002>
References: <16175346.1143469525456.JavaMail.www@wwinf4002>
On Mon, Mar 27, 2006 at 04:25:25PM +0200, luchot wrote:
> Hello everybody ,
> I use PostgreSQL 8.1.3 on a bi-processor Xeon and I would know how to do to enable a parallelism for
> the execution of queries. Indeed , when I analyse the use of the cpus during a query the result is that for
> some minutes a cpu is used while the other not and after it is the contrary. So they are not used at the same
> time and i would know what i have to do in order cpus work together .
> Thanks and sorry for my english,
PostgreSQL has no support for intra-query parallelism at this time.
Greenplum's MPP might do what you're looking for.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby@pervasive.com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
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To: pgsql-performance@postgresql.org
Cc: jnasby@pervasive.com, luchot@voila.fr
Subject: Re: Query parallelism
In-Reply-To: <20060327143147.GU80726@pervasive.com>
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