Re: SET ROLE and reserved roles

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Stephen Frost <sfrost(at)snowman(dot)net>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SET ROLE and reserved roles
Date: 2016-04-13 17:49:18
Message-ID: 11041.1460569758@sss.pgh.pa.us
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Stephen Frost <sfrost(at)snowman(dot)net> writes:
> On Wednesday, April 13, 2016, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>> Well ... yeah. But that doesn't mean it should be impossible to SET
>> to that role itself. I'm a little worried that could create strange
>> corner cases.

> Being able to create objects owned by a default role was one of those
> strange corner cases I was trying to avoid.

If you want to prevent that, I think it needs to be done somewhere else
than here. What about "ALTER OWNER TO pg_signal_backend", for instance?

But perhaps more to the point, why is it a strange corner case for one
of these roles to own objects? Isn't it *more* of a strange corner case
to try to prohibit it? Certainly the bootstrap superuser owns lots of
objects, and I don't see why these roles can't.

regards, tom lane

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