Re: [HACKERS] Surjective functional indexes

From: Andres Freund <andres(at)anarazel(dot)de>
To: Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>, Stephen Frost <sfrost(at)snowman(dot)net>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, Christoph Berg <myon(at)debian(dot)org>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [HACKERS] Surjective functional indexes
Date: 2018-05-11 14:37:37
Message-ID: 20180511143737.rvogcsxdksrhyyj5@alap3.anarazel.de
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On 2018-05-11 14:56:12 +0200, Simon Riggs wrote:
> On 11 May 2018 at 05:32, Andres Freund <andres(at)anarazel(dot)de> wrote:
> > No. Simon just claimed it's not actually a concern:
> > https://www.postgresql.org/message-id/CANP8+j+vtskPhEp_GmqmEqdWaKSt2KbOtee0yz-my+Agh0aRPw@mail.gmail.com
> >
> > And yes, it got committed without doing squat to address the
> > architectural concerns.
>
> "Squat" means "zero, nothing" to me. So that comment would be inaccurate.

Yes, I know it means that. And I don't see how it is inaccurate.

> I have no problem if you want to replace this with an even better
> design in a later release.

Meh. The author / committer should get a patch into the right shape, not
other people that are concerned with the consequences.

Greetings,

Andres Freund

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