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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Thomas Heller <info@zilence.net>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Protocol Question
Date: Mon, 18 Aug 2014 01:55:35 -0400
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Thomas Heller <info@zilence.net> writes:
> I just encountered a weird protocol error while stress testing my client.
> I'm receiving unexpected 'n'/NoData messages while reading 'D'/DataRow
> messages.

AFAICS, NoData can only be returned in response to Describe Statement
or Describe Portal issued against a command that cannot return rows.

If you can provide a counterexample for this claim, I'd be interested
to see it.  But my money is on confusion on the client side.

			regards, tom lane


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