Re: pgbench: using prepared BEGIN statement in a pipeline could cause an error

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: Andres Freund <andres(at)anarazel(dot)de>
Cc: Yugo NAGATA <nagata(at)sraoss(dot)co(dot)jp>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: pgbench: using prepared BEGIN statement in a pipeline could cause an error
Date: 2023-02-20 20:17:47
Message-ID: 20230220201747.4fblwswxq3xbgz2c@alvherre.pgsql
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Found one last problem: if you do "-f foobar.sql -M prepared" in that
order, then the prepare fails because the statement names would not be
assigned when the file is parsed. This coding only supported doing
"-M prepared -f foobar.sql", which funnily enough is the only one that
PostgreSQL/Cluster.pm->pgbench() supports. So I moved the prepared
statement name generation to the postprocess step.

--
Álvaro Herrera 48°01'N 7°57'E — https://www.EnterpriseDB.com/
"La rebeldía es la virtud original del hombre" (Arthur Schopenhauer)

Attachment Content-Type Size
v9-0001-pgbench-Prepare-commands-in-pipelines-in-advance.patch text/x-diff 9.9 KB

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