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From: Andrew Dunstan <[email protected]>
To: Tom Lane <[email protected]>
To: Mark Dilger <[email protected]>
Cc: Robert Haas <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Granting SET and ALTER SYSTE privileges for GUCs
Date: Wed, 17 Nov 2021 09:31:40 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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On 11/16/21 17:12, Tom Lane wrote:
>
>>> To support pg_dump and pg_upgrade, it might be better to have an
>>> enabled/disabled flag rather than to delete rows.
>> I'm not really sure what this means.
> I didn't see the point of this either.  We really need to KISS here.
> Every bit of added complexity in the catalog representation is another
> opportunity for bugs-of-omission, not to mention a detail that you
> have to provide mechanisms to dump and restore.
>
> 			


Well, I was trying (perhaps not very well) to imagine how to deal with
someone modifying the permissions of one of the predefined roles. Say
pg_foo has initial permission to set bar and baz, and the DBA removes
permission to set baz. How is pg_dump going to emit the right commands
to allow a safe pg_upgrade? Maybe we should say that the permissions for
the predefined roles are immutable, so only permissions sets for user
defined roles are mutable.


cheers


andrew

-- 

Andrew Dunstan
EDB: https://www.enterprisedb.com

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