Re: Re: [BUGS] BUG #7873: pg_restore --clean tries to drop tables that don't exist

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Satoshi Nagayasu <snaga(at)uptime(dot)jp>, Josh Kupershmidt <schmiddy(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bruce Momjian <bruce(at)momjian(dot)us>, Dave Rolsky <autarch(at)urth(dot)org>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Re: [BUGS] BUG #7873: pg_restore --clean tries to drop tables that don't exist
Date: 2013-10-14 21:44:21
Message-ID: 20131014214421.GE25013@awork2.anarazel.de
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On 2013-10-10 12:54:23 -0400, Andrew Dunstan wrote:
>
> On 09/19/2013 06:12 PM, Pavel Stehule wrote:
> >
> >
> >2013/9/16 Satoshi Nagayasu <snaga(at)uptime(dot)jp <mailto:snaga(at)uptime(dot)jp>>
> >
> >
>
>
> >
> > I'm looking at this patch, and I have a question here.
> >
> > Should "DROP TRIGGER IF EXISTS" ignore error for non-existing trigger
> > and non-existing table? Or just only for non-existing trigger?
> >
> >
> >My opinion is so, both variants should be ignored - it should be fully
> >fault tolerant in this use case.
> >
> >
>
>
> This thread seems to have gone cold, but I'm inclined to agree with Pavel.
> If the table doesn't exist, neither does the trigger, and the whole point of
> the 'IF EXISTS' variants is to provide the ability to issue DROP commands
> that don't fail if their target is missing.

-1, this seems to likely to just hide typos.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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