Re: BUG #15460: Error while creating index or constraint

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: paul(dot)vanderlinden(at)mapcreator(dot)eu
Cc: PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Subject: Re: BUG #15460: Error while creating index or constraint
Date: 2018-10-29 12:53:28
Message-ID: CAH2-Wz=1LHGGGch1CW+68+Np4zva5wJ9Vh50SoPfz_rX-pGoFw@mail.gmail.com
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On Mon, Oct 29, 2018 at 12:45 PM Paul van der Linden
<paul(dot)vanderlinden(at)mapcreator(dot)eu> wrote:
> It happens with both unique and non-unique index.
> When I disable virusscanner I also get the error, but settin g the max_parallel_workers to 0 does let me create the index

Thanks for trying that out. This confirms that parallel CREATE INDEX
is involved.

Is it possible for you to provide me with a dump of the data, or a
minimal test case? You can provided it to me off-list if that's
easier, possibly using Google drive or something. I realize that the
amount of data involved here isn't trivial, so this may be difficult.

I'm a little suspicious of the fact that your table is probably
aligned to certain boundaries, since it consists only of
integers/bigints. Maybe that's just a coincidence, though.

Thanks
--
Peter Geoghegan

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