From: Tom Lane <tgl@sss.pgh.pa.us>
To: Christoph Berg <myon@debian.org>
cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: (doc patch) psql version compatibility
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Comments: In-reply-to Christoph Berg <myon@debian.org>
	message dated "Tue, 06 Sep 2022 13:30:41 +0200"
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Date: Tue, 06 Sep 2022 10:21:23 -0400
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Christoph Berg <myon@debian.org> writes:
> I didn't understand the current wording of the NOTES section in
> psql(1) on which major versions psql is compatible with, so here's a
> patch to make that more explicit.

This seems both very repetitive and incorrect in detail.
Some operations will work fine with older servers, some won't.
I don't think that we want to undertake documenting exactly
which commands work how far back, so my inclination is to
add a nonspecific disclaimer along the lines of

   Some commands may not work with very old servers (before 9.2).

			regards, tom lane