From: Tom Lane <tgl@sss.pgh.pa.us>
To: Tatsuo Ishii <ishii@sraoss.co.jp>
cc: nagata@sraoss.co.jp, coelho@cri.ensmp.fr, thomas.munro@gmail.com,
        m.polyakova@postgrespro.ru, alvherre@2ndquadrant.com,
        pgsql-hackers@postgresql.org, teodor@sigaev.ru
Subject: Re: [HACKERS] WIP aPatch: Pgbench Serialization and deadlock errors
In-reply-to: <20220324.134924.883806150160900709.t-ishii@sranhm.sra.co.jp>
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 <20220324.134924.883806150160900709.t-ishii@sranhm.sra.co.jp>
Comments: In-reply-to Tatsuo Ishii <ishii@sraoss.co.jp>
	message dated "Thu, 24 Mar 2022 13:49:24 +0900"
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Date: Thu, 24 Mar 2022 14:02:59 -0400
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Tatsuo Ishii <ishii@sraoss.co.jp> writes:
>> My hoary animal prairiedog doesn't like this [1]:

> My machine (Ubuntu 20) did not complain either. Maybe perl version
> difference?  Any way, the fix pushed. Let's see how prairiedog feels.

Still not happy.  After some digging in man pages, I believe the
problem is that its old version of Perl does not understand "\gN"
backreferences.  Is there a good reason to be using that rather
than the traditional "\N" backref notation?

			regards, tom lane