From: Tom Lane <tgl@sss.pgh.pa.us>
To: Robert Haas <robertmhaas@gmail.com>
cc: "David G. Johnston" <david.g.johnston@gmail.com>,
        Pavel Luzanov <p.luzanov@postgrespro.ru>,
        Christophe Pettus <xof@thebuild.com>,
        pgsql-general <pgsql-general@postgresql.org>
Subject: Re: v16 roles, SET FALSE, INHERIT FALSE, ADMIN FALSE
In-reply-to: <CAKFQuwYdD-rUZy7nYCi0K-RxvL-=s1wMHU6hqdBNY7VsaCwv3A@mail.gmail.com>
References: <69A2A7BD-F8CA-4067-B229-B5F9FC6A884F@thebuild.com> <2e3e4ddb-52b5-49b2-b363-00e3f12a83a0@postgrespro.ru> <1214992.1720473388@sss.pgh.pa.us> <CAKFQuwYdD-rUZy7nYCi0K-RxvL-=s1wMHU6hqdBNY7VsaCwv3A@mail.gmail.com>
Comments: In-reply-to "David G. Johnston" <david.g.johnston@gmail.com>
	message dated "Mon, 08 Jul 2024 14:59:51 -0700"
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Date: Mon, 08 Jul 2024 18:08:50 -0400
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"David G. Johnston" <david.g.johnston@gmail.com> writes:
> On Mon, Jul 8, 2024 at 2:16 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Pavel Luzanov <p.luzanov@postgrespro.ru> writes:
> On 08.07.2024 22:22, Christophe Pettus wrote:
>>>> This is more curiosity than anything else.  In the v16 role system, is
>>>> there actually any reason to grant membership in a role to a different
>>>> role, but with SET FALSE, INHERIT FALSE, and ADMIN FALSE?  Does the role
>>>> granted membership gain any ability it didn't have before in that case?

>>> Looks like there is one ability.
>>> Authentication in pg_hba.conf "USER" field via +role syntax.

>> Hmm, if that check doesn't require INHERIT TRUE I'd say it's
>> a bug.

> The code doesn't support that claim.

That doesn't make it not a bug.  Robert, what do you think?  If this
is correct behavior, why is it correct?

			regards, tom lane