Re: [HACKERS] pgbench -C -M prepared gives an error

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Tatsuo Ishii <ishii(at)postgresql(dot)org>
Cc: tharakan(at)gmail(dot)com, pgsql-bugs(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] pgbench -C -M prepared gives an error
Date: 2016-03-17 02:30:06
Message-ID: 1563.1458181806@sss.pgh.pa.us
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Tatsuo Ishii <ishii(at)postgresql(dot)org> writes:
> Sounds like a bug. We should either fix pgbench so that -M and -C can
> be used together (I don't see any technical reason why we can't do
> this) or modify pgbench to not allow using -M and -C (less desirable).

We're not resetting the prepared[] array when we pull the plug on an
existing connection.

Is a connection per transaction really a sane case to consider?
I can certainly understand why bugs in that code path might go
undetected for years.

regards, tom lane

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