Date: Mon, 6 Apr 2020 22:42:22 +0200
From: Tomas Vondra <tomas.vondra@2ndquadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: James Coleman <jtc331@gmail.com>,
	Alvaro Herrera <alvherre@2ndquadrant.com>,
	Michael Paquier <michael@paquier.xyz>,
	Rafia Sabih <rafia.pghackers@gmail.com>,
	Peter Geoghegan <pg@bowt.ie>, Simon Riggs <simon@2ndquadrant.com>,
	Shaun Thomas <shaun.thomas@2ndquadrant.com>,
	Dmitry Dolgov <9erthalion6@gmail.com>,
	Alexander Korotkov <a.korotkov@postgrespro.ru>,
	PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>,
	Andreas Karlsson <andreas@proxel.se>
Subject: Re: [PATCH] Incremental sort (was: PoC: Partial sort)
Message-ID: <20200406204222.4ulowvv3yzwkivgk@development>
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On Mon, Apr 06, 2020 at 04:14:38PM -0400, Tom Lane wrote:
>Tomas Vondra <tomas.vondra@2ndquadrant.com> writes:
>> Hmmm, I see the buildfarm is not happy about it - a couple of animals
>> failed, but some succeeded. The failure seems like a simple difference
>> in explain output, but it's not clear why would it happen (and I've
>> ran the tests many times but never seen this failure).
>
>Did you ever use force_parallel_mode = regress?
>

Ah, not sure - probably not in this round of tests and there were some
changes in the explain code. Thanks for the hint.

regards

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