From: Tom Lane <tgl@sss.pgh.pa.us>
To: Fabien COELHO <coelho@cri.ensmp.fr>
cc: Tomas Vondra <tomas.vondra@2ndquadrant.com>,
        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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Comments: In-reply-to Fabien COELHO <coelho@cri.ensmp.fr>
	message dated "Sun, 16 Jun 2019 19:45:45 +0200"
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Date: Sun, 16 Jun 2019 13:52:03 -0400
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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 ...)

			regards, tom lane