Re: Having query cache in core

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp>
Cc: PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Having query cache in core
Date: 2018-05-07 17:52:26
Message-ID: CA+TgmobAkqOwTHuy+30oirrkif1jXiyjfOtY5NTr1wfWxTGEzA@mail.gmail.com
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On Sun, May 6, 2018 at 10:32 PM, Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> wrote:
> Does anybody think having in-memory query result cache in core is a
> good idea? From the experience of implementing the feature in
> Pgpool-II, I would think this is not terribly hard job. But first of
> all I'm wondering if there's a demand for the feature.

Caching results doesn't seem very useful to me, but caching plans
does. I think the challenges are formidable, though.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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