Re: Request for comment on setting binary format output per session

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Peter Eisentraut <peter(at)eisentraut(dot)org>
Cc: Dave Cramer <davecramer(at)gmail(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Jeff Davis <pgsql(at)j-davis(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Request for comment on setting binary format output per session
Date: 2023-10-04 19:10:05
Message-ID: CA+TgmoZ8r8xb_73WzKHGb00cV3tpHV_U0RHuzzMFKvLepdu2Jw@mail.gmail.com
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On Wed, Oct 4, 2023 at 10:17 AM Peter Eisentraut <peter(at)eisentraut(dot)org> wrote:
> I think intuitively, this facility ought to work like client_encoding.

I hadn't really considered client_encoding as a precedent for this
setting. A lot of my discomfort with the proposed mechanism also
applies to client_encoding, namely, suppose you call some function or
procedure or whatever and it changes client_encoding on your behalf
and now your communication with the server is all screwed up. That
seems very unpleasant. Yet it's also existing behavior. I think one
could conclude on these facts either that (a) client_encoding is fine
and the problems with controlling behavior using that kind of
mechanism are mostly theoretical or (b) that we messed up with
client_encoding and shouldn't add any more mistakes of the same ilk or
(c) that we should really be looking at redesigning the way
client_encoding works, too.

--
Robert Haas
EDB: http://www.enterprisedb.com

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