Re: pgsql: Fast ALTER TABLE ADD COLUMN with a non-NULL default

From: Andres Freund <andres(at)anarazel(dot)de>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andrew Dunstan <andrew(dot)dunstan(at)2ndquadrant(dot)com>, pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: Re: pgsql: Fast ALTER TABLE ADD COLUMN with a non-NULL default
Date: 2018-03-28 06:26:02
Message-ID: 20180328062602.555moucne7weaohc@alap3.anarazel.de
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On 2018-03-27 23:40:25 -0400, Tom Lane wrote:
> Andres Freund <andres(at)anarazel(dot)de> writes:
> > Note there appear to be some independent failures?
>
> It looks to me like the hard failures from this patch are all on your JIT
> critters. There are a bunch of random failures from Simon's commit,
> but I think those are just timing, per <31021(dot)1522185986(at)sss(dot)pgh(dot)pa(dot)us>.

There's a weird failure:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=whelk&dt=2018-03-28%2005%3A41%3A30

It blames two commits that should not have any effect on the platform,
so I assume it's something not stable... Hard to say without a
backtrace.

Greetings,

Andres Freund

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