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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Stephen Frost <sfrost@snowman.net>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Konstantin Knizhnik <k.knizhnik@postgrespro.ru>
Cc: Michael Paquier <michael.paquier@gmail.com>
Cc: Alvaro Herrera <alvherre@alvh.no-ip.org>
Cc: Christoph Berg <myon@debian.org>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>
Cc: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] Surjective functional indexes
Date: Mon, 14 Jan 2019 19:03:10 -0500
Message-ID: <30647.1547510590@sss.pgh.pa.us> (raw)
In-Reply-To: <20190114235745.quz72yul3hclx3fu@alap3.anarazel.de>
References: <20180511143737.rvogcsxdksrhyyj5@alap3.anarazel.de>
	<CANP8+jLgdS-_ka5bhyG_=f5wGYVY-bQy3YD7rJY=TDnpA1snmg@mail.gmail.com>
	<CA+Tgmob_qk-w38Mbp5wCCGH9G8AFpmB0K0aTLujJqHNbBpBNUA@mail.gmail.com>
	<25975.1541618754@sss.pgh.pa.us>
	<20190114223409.3tcvejfhlvbucrv5@alap3.anarazel.de>
	<28044.1547507004@sss.pgh.pa.us>
	<20190114230918.fhp6wktbhg6pjnyw@alap3.anarazel.de>
	<28651.1547507948@sss.pgh.pa.us>
	<20190114234617.GW2528@tamriel.snowman.net>
	<30007.1547509982@sss.pgh.pa.us>
	<20190114235745.quz72yul3hclx3fu@alap3.anarazel.de>

Andres Freund <andres@anarazel.de> writes:
> On 2019-01-14 18:53:02 -0500, Tom Lane wrote:
>> But I suspect just doing the revert is already going to be painful
>> enough :-(

> I assume you're not particularly interested in doing that?

No, I'm willing to do it, and will do so tomorrow if there haven't
been objections.

What I'm not willing to do is write hacks for pg_upgrade or pg_dump
to mask cases where the option has been set on a v11 index.  I judge
that it's not worth the trouble.  If someone else disagrees, they
can do that work.

			regards, tom lane




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  Cc: tgl@sss.pgh.pa.us, andres@anarazel.de, sfrost@snowman.net, simon@2ndquadrant.com, robertmhaas@gmail.com, k.knizhnik@postgrespro.ru, michael.paquier@gmail.com, alvherre@alvh.no-ip.org, myon@debian.org, thomas.munro@enterprisedb.com, peter.eisentraut@2ndquadrant.com
  Subject: Re: [HACKERS] Surjective functional indexes
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