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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Fabien COELHO <coelho@cri.ensmp.fr>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Corey Huinker <corey.huinker@gmail.com>
Cc: Daniel Verite <daniel@manitou-mail.org>
Cc: PostgreSQL Developers <pgsql-hackers@postgresql.org>
Subject: Re: Variable substitution in psql backtick expansion
Date: Sat, 26 Aug 2017 15:07:48 -0400
Message-ID: <4959.1503774468@sss.pgh.pa.us> (raw)
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Fabien COELHO <coelho@cri.ensmp.fr> writes:
> Spending developer time to write code for the hypothetical someone running 
> a psql version 11 linked to a libpq < 7.4, if it can even link, does not 
> look like a very good investment... Anyway, here is required the update.

The question is the server's version, not libpq.  Modern psql does still
talk to ancient servers (I tried 11devel against 7.2 just now, to be
sure).  The stuff in describe.c may not work well, but basic functionality
is there and I don't want to break it.

			regards, tom lane


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  Cc: tgl@sss.pgh.pa.us, coelho@cri.ensmp.fr, robertmhaas@gmail.com, pavel.stehule@gmail.com, corey.huinker@gmail.com, daniel@manitou-mail.org
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