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help / color / mirror / Atom feedFrom: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Simon Riggs <simon@2ndQuadrant.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andres Freund <andres@anarazel.de>
Cc: Fujii Masao <masao.fujii@gmail.com>
Cc: Martijn van Oosterhout <kleptog@svana.org>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Subject: Re: WAL logging problem in 9.4.3?
Date: Wed, 21 Oct 2015 11:53:44 -0300
Message-ID: <20151021145344.GW3391@alvherre.pgsql> (raw)
In-Reply-To: <55AFC302.1060805@iki.fi>
References: <20150703170229.GJ3291@awork2.anarazel.de>
<20150703172605.GM3291@awork2.anarazel.de>
<CAHGQGwGGM2OBh4WOTd8wWqxKzRy+WdJX+-fxxPCWNz4eeJ1aQQ@mail.gmail.com>
<27532.1436195680@sss.pgh.pa.us>
<20150706152123.GK8902@alap3.anarazel.de>
<28415.1436197794@sss.pgh.pa.us>
<20150709182315.GG10242@alap3.anarazel.de>
<29916.1436483171@sss.pgh.pa.us>
<CANP8+jKN4V4MJEzFN_iEtdZ+1oM=YETxvmuu1YK4UMXQY2gaGw@mail.gmail.com>
<55AFC302.1060805@iki.fi>
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Heikki Linnakangas wrote:
> Thanks. For comparison, I wrote a patch to implement what I had in mind.
>
> When a WAL-skipping COPY begins, we add an entry for that relation in a
> "pending-fsyncs" hash table. Whenever we perform any action on a heap that
> would normally be WAL-logged, we check if the relation is in the hash table,
> and skip WAL-logging if so.
I think this wasn't applied, was it?
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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To: pgsql-hackers@postgresql.org
Cc: alvherre@2ndquadrant.com, hlinnaka@iki.fi, simon@2ndQuadrant.com, tgl@sss.pgh.pa.us, andres@anarazel.de, masao.fujii@gmail.com, kleptog@svana.org
Subject: Re: WAL logging problem in 9.4.3?
In-Reply-To: <20151021145344.GW3391@alvherre.pgsql>
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