Re: Report buffer access strategies in EXPLAIN

From: Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Lukas Fittl <lukas(at)fittl(dot)com>, Sami Imseih <samimseih(dot)pg(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Andres Freund <andres(at)anarazel(dot)de>, Melanie Plageman <melanieplageman(at)gmail(dot)com>, Tomas Vondra <tomas(at)vondra(dot)me>
Subject: Re: Report buffer access strategies in EXPLAIN
Date: 2026-11-06 08:17:13
Message-ID: au2NCcVRisuQK3jN@bdtpg
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Hi,

On Fri, Nov 06, 2026 at 11:18:07AM +0900, Michael Paquier wrote:
> On Thu, Nov 05, 2026 at 05:51:08PM -0800, Lukas Fittl wrote:
> > Is there a reason we feel that "strategy ring" is the better choice?
> > If we wanted to make it more clear that its a ring buffer used as part
> > of a buffer access strategy maybe we can do "strategy ring buffer"?
> > (or "strategic ring buffer"?)
>
> It's used in the glossary of the documentation on HEAD, at least. I'd
> tend to agree that "Buffer Access Strategy ring" would be a more
> complete term when not in the context of the glossary page. If the
> BAS are explicitely described, like in the glossary, "strategy ring"
> reads fine.

That makes sense to me. I'll keep "strategy ring" in the glossary and change the
pg_stat_io wording to "Buffer Access Strategy ring" in v5.

Regards,

--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com

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