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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Tomas Vondra <tomas.vondra@2ndquadrant.com>
Cc: James Coleman <jtc331@gmail.com>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: Michael Paquier <michael@paquier.xyz>
Cc: Rafia Sabih <rafia.pghackers@gmail.com>
Cc: Peter Geoghegan <pg@bowt.ie>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: Shaun Thomas <shaun.thomas@2ndquadrant.com>
Cc: Dmitry Dolgov <9erthalion6@gmail.com>
Cc: Alexander Korotkov <a.korotkov@postgrespro.ru>
Cc: PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Cc: Andreas Karlsson <andreas@proxel.se>
Subject: Re: [PATCH] Incremental sort (was: PoC: Partial sort)
Date: Mon, 06 Apr 2020 16:14:38 -0400
Message-ID: <5595.1586204078@sss.pgh.pa.us> (raw)
In-Reply-To: <20200406201145.ig56cdzrkt4u5mou@development>
References: <CAAaqYe953TA0Pj+08jEBgK_=5zMCJO-vgYnh4n_Me71ZdzDJLg@mail.gmail.com>
	<20200401214215.ut6b72e3zlbm33w2@development>
	<CAAaqYe8fWa8pBUStzW-4JocF+d3pFBVLFmb9rtcD0m12NskBJw@mail.gmail.com>
	<20200402024746.5wlwk6q7eiv5faux@development>
	<CAAaqYe90h3F5NbgtNJAMrXAiGZwML8=_E_qs4MCyYtqea+5Hhg@mail.gmail.com>
	<20200403002028.kp3rxncmwvsui6xz@development>
	<CAAaqYe--jV9pHrX5NRw9R2QGG+nRuPPKguzHhKZwhp6XPOiyuQ@mail.gmail.com>
	<CAAaqYe9XO7ZKrpVkrz2e0ja=eeFCX0Wqpmc7r23R84JU9uCLxQ@mail.gmail.com>
	<20200405130110.2bdxaz4ed5jx2eae@development>
	<20200406195722.teiha6foiy3lix3s@development>
	<20200406201145.ig56cdzrkt4u5mou@development>

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?

			regards, tom lane





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