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

From: "Daniel Verite" <daniel(at)manitou-mail(dot)org>
To: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: "Fabien COELHO" <coelho(at)cri(dot)ensmp(dot)fr>,"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: 2019-01-28 15:21:29
Message-ID: 80ca399a-8e21-46ba-bec7-99450556c422@manitou-mail.org
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Tom Lane wrote:

> A variant that might or might not be safer is "\g <foo", ie we
> insist on you putting a mark there that shows you intended to read.
>
> Also, not quite clear what we'd do about copy-from-program.
> I think "\g |foo" is definitely confusing for that. "\g foo|"
> would be better if it doesn't have syntax issues.

I haven't written any patch yet, but I was thinking of submitting
something like that, with the addition of "\g >foo" as a synonym of
"\g foo" for the symmetry with "<".
Perl's open() also uses the "program |" syntax.

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

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