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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Stephen Frost <sfrost@snowman.net>
Cc: Andres Freund <andres@anarazel.de>
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 19:10:57 -0500
Message-ID: <30971.1547511057@sss.pgh.pa.us> (raw)
In-Reply-To: <20190115000639.GA2528@tamriel.snowman.net>
References: <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>
	<30647.1547510590@sss.pgh.pa.us>
	<20190115000639.GA2528@tamriel.snowman.net>

Stephen Frost <sfrost@snowman.net> writes:
> * Tom Lane (tgl@sss.pgh.pa.us) wrote:
>> 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.

> I'd love for there to be a better option beyond "just let people run the
> pg_upgrade and have it fail half-way through"...  Particularly after
> someone's run the pg_upgrade check against the database...

> If there isn't, then I'll write the code to add the check to pg_upgrade.

Go for it.

			regards, tom lane

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