From: Tom Lane <tgl@sss.pgh.pa.us>
To: pgsql-hackers@lists.postgresql.org
Subject: Instability in parallel regression tests
Date: Wed, 14 Mar 2018 19:31:08 -0400
Message-ID: <4627.1521070268@sss.pgh.pa.us> (raw)
guaibasaurus just failed in a way I'd not seen before:
https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=guaibasaurus&dt=2018-03-14%2006%3A33%3A0...
Inspection of the diffs makes it depressingly obvious what happened:
the concurrently-executing "alter_table" and "with" scripts both create
short-lived tables named "test". Given the right timing, those tests
stomp on each other. This seems to have been there a long time;
surprising we'd not noticed it before.
Moral: choose names less generic than "test" for globally-visible
objects. I wonder if there's some way we could check for such
conflicts automatically?
regards, tom lane
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-hackers@postgresql.org
Cc: tgl@sss.pgh.pa.us, pgsql-hackers@lists.postgresql.org
Subject: Re: Instability in parallel regression tests
In-Reply-To: <4627.1521070268@sss.pgh.pa.us>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox