Re: [PATCHES] Users/Groups -> Roles

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, Stephen Frost <sfrost(at)snowman(dot)net>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: [PATCHES] Users/Groups -> Roles
Date: 2005-07-01 17:06:29
Message-ID: 200507011706.j61H6TF12521@candle.pha.pa.us
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Thanks, TODO updated. We still support CREATE GROUP? It translates to
roles?

---------------------------------------------------------------------------

Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Stupid question, but how do roles relate to our existing "groups"?
>
> As committed, roles subsume both users and groups: a role that permits
> login (rolcanlogin) acts as a user, and a role that has members is a
> group. It is possible for the same role to do both things, though I'm
> not sure that it's good security policy to set up a role that way.
>
> The advantage over what we had is exactly that there isn't any
> distinction, and thus groups can do everything users can and
> vice versa:
> * groups can own objects
> * groups can contain other groups (we forbid loops though)
>
> Also there is a notion of "admin option" for groups, which is like
> "grant option" for privileges: you can designate certain members of
> a group as being able to grant ownership in that group to others,
> without having to make them superusers.
>
> regards, tom lane
>

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