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

From: Josh Kupershmidt <schmiddy(at)gmail(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: 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: [BUGS] BUG #7873: pg_restore --clean tries to drop tables that don't exist
Date: 2013-03-08 15:58:57
Message-ID: CAK3UJRGEmtV477gu8Rvh+TUcRQHQcsHc=c0Ynu=3KDdV+Vxarw@mail.gmail.com
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On Fri, Mar 8, 2013 at 2:23 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> 2013/3/8 Josh Kupershmidt <schmiddy(at)gmail(dot)com>:

>> Cool. I think it would also be useful to check that --clean may only
>> be used with --format=p to avoid any confusion there. (This issue
>> could be addressed in a separate patch if you'd rather not lard this
>> patch.)
>
> no
>
> some people - like we in our company would to use this feature for
> quiet and strict mode for plain text format too.
>
> enabling this feature has zero overhead so there are no reason block
> it anywhere.

I'm not sure I understand what you're getting at, but maybe my
proposal wasn't so clear. Right now, you can specify --clean along
with -Fc to pg_dump, and pg_dump will not complain even though this
combination is nonsense. I am proposing that pg_dump error out in this
case, i.e.

$ pg_dump -Fc --file=test.dump --clean -d test
pg_dump: option --clean only valid with plain format dump

Although this lack of an error a (IMO) misfeature of existing pg_dump,
so if you'd rather leave this issue aside for your patch, that is
fine.

Josh

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