Re: Disallow unique index on system columns

From: Andres Freund <andres(at)anarazel(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Disallow unique index on system columns
Date: 2016-04-15 15:52:42
Message-ID: 20160415155242.h5qkxosjohkyllht@alap3.anarazel.de
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On 2016-04-15 11:49:27 -0400, Tom Lane wrote:
> I think what we should do with this is split it into two patches, one
> to fix ALTER REPLICA IDENTITY's crash (which we'd back-patch to 9.4)
> and one to forbid indexes on system columns (which IMO should be HEAD
> only). The first of those should be pretty uncontroversial, so I'll
> go ahead with pushing it --- anyone have a problem with the second?

Only in that I'm wondering whether we shouldn't be more aggressive about
#2.

Andres

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