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From: Simon Riggs <simon.riggs@enterprisedb.com>
Date: Tue, 12 Apr 2022 14:58:17 +0100
Message-ID: 
 <CANbhV-FsVOXou11teGwPWiHh__yaDUSTG6K2JPRTHgznt2uvpg@mail.gmail.com>
Subject: Re: WIP: WAL prefetch (another approach)
To: Thomas Munro <thomas.munro@gmail.com>
Cc: Julien Rouhaud <rjuju123@gmail.com>,
 Ashutosh Sharma <ashu.coek88@gmail.com>,
	Daniel Gustafsson <daniel@yesql.se>, Stephen Frost <sfrost@snowman.net>,
	Alvaro Herrera <alvherre@2ndquadrant.com>,
 Andres Freund <andres@anarazel.de>,
	David Steele <david@pgmasters.net>, Dmitry Dolgov <9erthalion6@gmail.com>,
	Jakub Wartak <Jakub.Wartak@tomtom.com>, Tom Lane <tgl@sss.pgh.pa.us>,
	Tomas Vondra <tomas.vondra@2ndquadrant.com>,
 Tomas Vondra <tomas.vondra@enterprisedb.com>,
	pgsql-hackers <pgsql-hackers@postgresql.org>
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On Thu, 7 Apr 2022 at 08:46, Thomas Munro <thomas.munro@gmail.com> wrote:

> With that... I've finally pushed the 0002 patch and will be watching
> the build farm.

This is a nice feature if it is safe to turn off full_page_writes.

When is it safe to do that? On which platform?

I am not aware of any released software that allows full_page_writes
to be safely disabled. Perhaps something has been released recently
that allows this? I think we have substantial documentation about
safety of other settings, so we should carefully document things here
also.

-- 
Simon Riggs                http://www.EnterpriseDB.com/