Re: [HACKERS] Surjective functional indexes

From: Andres Freund <andres(at)anarazel(dot)de>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Konstantin Knizhnik <k(dot)knizhnik(at)postgrespro(dot)ru>, 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: 2019-01-15 00:06:48
Message-ID: 20190115000648.zd2h7rjodo6qipr4@alap3.anarazel.de
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Hi,

On 2019-01-14 19:04:07 -0500, Stephen Frost wrote:
> As that's the case, then I guess I'm thinking we really should make
> pg_upgrade complain if it finds it during the check phase. I really
> don't like having a case like this where the pg_upgrade will fail from
> something that we could have detected during the pre-flight check,
> that's what it's for, after all.

I suggest you write a separate patch for that in that case.

Greetings,

Andres Freund

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