Re: Alternative to \copy in psql modelled after \g

From: "Daniel Verite" <daniel(at)manitou-mail(dot)org>
To: "Fabien COELHO" <coelho(at)cri(dot)ensmp(dot)fr>
Cc: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>,"Alvaro Herrera" <alvherre(at)2ndquadrant(dot)com>,"PostgreSQL Hackers" <pgsql-hackers(at)lists(dot)postgresql(dot)org>,"David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Subject: Re: Alternative to \copy in psql modelled after \g
Date: 2019-01-25 13:16:22
Message-ID: d51b800e-f169-43f4-bb61-e4cd88a5df32@manitou-mail.org
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Fabien COELHO wrote:

> Sure. As there are several bugs (doubtful features) uncovered, a first
> patch could fix "COPY ...TO STDOUT \g file", but probably replicate ERROR
> current behavior however debatable it is (i.e. your patch without the
> ERROR change, which is unrelated to the bug being fixed), and then another
> patch should fix/modify the behavior around ERROR (everywhere and
> consistently), and probably IMHO add an SQL_ERROR.

It's not as if the patch issued an explicit call SetVariable("ERROR", "true")
that could be commented, or something like that. The assignment
of the variable happens as a consequence of patched code that aims at
being correct in its error handling.
So I'm for leaving this decision to a maintainer, because I don't agree
with your conclusion that the current patch should be changed in
that regard.

Best regards,
--
Daniel Vérité
PostgreSQL-powered mailer: http://www.manitou-mail.org
Twitter: @DanielVerite

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