Re: vacuumdb: permission denied for schema "pg_temp_7"

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Cc: Fujii Masao <masao(dot)fujii(at)oss(dot)nttdata(dot)com>, Christophe Pettus <xof(at)thebuild(dot)com>, vaibhave postgres <postgresvaibhave(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Noah Misch <noah(at)leadboat(dot)com>, pgsql-bugs(at)lists(dot)postgresql(dot)org, vsekar(at)microsoft(dot)com
Subject: Re: vacuumdb: permission denied for schema "pg_temp_7"
Date: 2024-09-24 23:29:32
Message-ID: ZvNLXHq2r4GRn1bm@paquier.xyz
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On Tue, Sep 24, 2024 at 09:51:14AM -0500, Nathan Bossart wrote:
> On Tue, Sep 24, 2024 at 11:49:12PM +0900, Fujii Masao wrote:
>> On 2024/09/24 23:26, Nathan Bossart wrote:
>>> Yeah, this is what I mentioned upthread [0]. If the user doesn't specify
>>> anything in --table or --schema, then it's probably fine to silently skip
>>> objects for which they lack privileges. But if they do explicitly specify
>>> a table or schema that they cannot vacuum, then IMHO it'd be better to
>>> fail.
>>
>> This could be debatable. To be honest, if I run something like vacuumdb mydb,
>> *I* expect all eligible tables in that database to be vacuumed. If I forget to
>> grant the necessary privileges to the role, I´d prefer to see errors from
>> vacuumdb so I can fix the permissions.
>>
>> If we decide to skip tables without enough privilege, I´d prefer adding
>> an option like --skip-unprivileged-tables rather than changing the default behavior.
>
> I'm okay with that approach.

Okay. I'd be on board with a new option to control the filtering.
The lack of complaints regarding vacuumdb failing with a non-superuser
makes it rather OK to still fail by default.
--
Michael

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