Re: WAL logging problem in 9.4.3?

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Cc: Simon Riggs <simon(at)2ndQuadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andres Freund <andres(at)anarazel(dot)de>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>, Martijn van Oosterhout <kleptog(at)svana(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: WAL logging problem in 9.4.3?
Date: 2015-10-21 14:53:44
Message-ID: 20151021145344.GW3391@alvherre.pgsql
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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
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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