Date: Sun, 16 Jun 2019 21:24:12 +0200
From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Fabien COELHO <coelho@cri.ensmp.fr>,
	Dean Rasheed <dean.a.rasheed@gmail.com>,
	Tomas Vondra <tomas.vondra@postgresql.org>,
	pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Rework the pg_statistic_ext catalog
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On Sun, Jun 16, 2019 at 01:52:03PM -0400, Tom Lane wrote:
>Fabien COELHO <coelho@cri.ensmp.fr> writes:
>>> This theory is insufficient to explain why Coelho's animals failed,
>>> though.  Maybe it would, if you also posit a ccache screwup?  But it's
>>> not obvious from their configurations that they're using ccache at all.
>
>> Indeed, no ccache. The compilers change often (well, once a week), I do
>> not want anything kept across compiler versions. The animals are really
>> testing the compilers as much as they are testing postgres.
>
>> However, there is an autoconf cache, but I do not see why it would have
>> such an effect.
>
>> So no clue.
>
>And now they're both green again, so even less clue.  Oh well.
>On another day I'd be interested to understand exactly what happened
>there, but right now I lack the time or energy to look closer.
>
>(I do still have a suspicion that it was somehow caused by the
>catversion bumps ...)
>

FWIW I'm not using anything bleeding edge either (gcc from fedora 29,
8.3.1 to be exact), no ccache. And I can't reproduce it anymore, so I
agree it might have been some stale state after catversion bump.
Although I usually do make-clean before running tests ...

regards

-- 
Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services