Re: two queryes in a single tablescan - Mailing list pgsql-performance

From Steinar H. Gunderson
Subject Re: two queryes in a single tablescan
Date
Msg-id 20071017131524.GC3237@uio.no
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In response to two queryes in a single tablescan  ("Stefano Dal Pra" <s.dalpra@gmail.com>)
Responses Re: two queryes in a single tablescan
List pgsql-performance
On Wed, Oct 17, 2007 at 02:30:52PM +0200, Stefano Dal Pra wrote:
> The main goal would be to get multiple results while scanning the
> table[s] once only
> thus getting results in a faster  way.

In 8.3, Postgres will do this for you itself -- if you already have a
sequential scan running against a given table, another one starting in
parallel will simply piggyback it.

/* Steinar */
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Homepage: http://www.sesse.net/

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