Re: Avoiding unnecessary reads in recovery

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
Cc: Bruce Momjian <bruce(at)momjian(dot)us>, Simon Riggs <simon(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Avoiding unnecessary reads in recovery
Date: 2007-04-28 16:56:06
Message-ID: 13653.1177779366@sss.pgh.pa.us
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Heikki Linnakangas <heikki(at)enterprisedb(dot)com> writes:
> I was actually thinking that we could slip this in 8.3. It's a simple,
> well-understood patch, which fixes a little data integrity quirk as well
> as gives a nice recovery speed up.

Yeah. It's arguably a bug fix, in fact, since it eliminates the issue
that the recovery behavior is wrong if full-page-writes had been off
when the WAL log was made.

regards, tom lane

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