From: Bruce Momjian <bruce@momjian.us>
To: Artiom Makarov <artiom.makarov@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-performance@postgresql.org
Subject: Re: temp table "on commit delete rows": transaction overhead
Date: Mon, 5 Apr 2010 08:09:22 -0400 (EDT)
Message-ID: <201004051209.o35C9MB10324@momjian.us> (raw)
In-Reply-To: <q2td448ea361004050056ifed022e3t3ca6e2cca7eaac61@mail.gmail.com>
Artiom Makarov wrote:
> 2010/4/1 Bruce Momjian <bruce@momjian.us>:
>
> > I think one of the problems is that we do the truncate even if the table
> > has not be touched by the query, which is poor behavior.
>
> Thank you for the support.
> Will be this problem registered?
I have it on my personal TODO and will try to get it on the official
TODO soon.
> I see a workaround: switch off "on commit delete rows" on temp tables
> and use txid_current() to control transaction visibility.
OK.
--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
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To: pgsql-performance@postgresql.org
Cc: bruce@momjian.us, artiom.makarov@gmail.com, tgl@sss.pgh.pa.us
Subject: Re: temp table "on commit delete rows": transaction overhead
In-Reply-To: <201004051209.o35C9MB10324@momjian.us>
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