Re: [PATCH] Add additional extended protocol commands to psql: \parse and \bind

From: Anthonin Bonnefoy <anthonin(dot)bonnefoy(at)datadoghq(dot)com>
To: Michael Paquier <michael(at)paquier(dot)xyz>
Cc: Peter Eisentraut <peter(at)eisentraut(dot)org>, Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Jelte Fennema-Nio <postgres(at)jeltef(dot)nl>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PATCH] Add additional extended protocol commands to psql: \parse and \bind
Date: 2024-07-25 06:45:28
Message-ID: CAO6_XqpG3a0cCHkhc1HGPGrkNqCttbM3UCqnSTEn+zFCau6Baw@mail.gmail.com
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On Wed, Jul 24, 2024 at 05:33:07PM +0200, Peter Eisentraut wrote:
> This commit message confused me, because I don't think this is what the
> \bindx command actually does. AFAICT, it only binds, it does not execute.
> At least that is what the documentation in the content of the patch appears
> to indicate.

Unless I misunderstand the remark, \bindx will call
PQsendQueryPrepared which will bind then execute the query, similar to
what \bind is doing (except \bind also parses the query).

> I'm not sure \bindx is such a great name. The "x" stands for "I ran out of
> ideas". ;-)

That's definitely what happened :). \bind would have been a better fit
but it was already used.

On Thu, Jul 25, 2024 at 4:19 AM Michael Paquier <michael(at)paquier(dot)xyz> wrote:
> Not sure that I like much the additional option embedded in the
> existing command; I'd rather keep a separate command for each libpq
> call, that seems cleaner. So I would be OK with your suggested
> \bind_named. Fine by me to be outvoted, of course.

+1 keeping this as a separate command and using \bind_named. \bind has
a different behaviour as it also parses the query so keeping them as
separate commands would probably avoid some confusion.

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