Re: Feature proposal: list role members in psql

On Wed, Mar 28, 2012 at 01:55:06PM +0300, Anssi Kääriäinen wrote:
> It seems there is no way to get role members using psql. \du and \dg
> give you "this role is a member of" information, but no information
> about who have been granted the role.
>
> I would like to write a patch implementing this feature. Some questions:
>   - Is this wanted?

It is by at least by one person :)

>   - Should there be a new flag for this: \du[m+] where m list the
> role memebers. Or could this be added to the '+' flag?

See below.

>   - Any pointers for patches implementing a similar addition to
> psql? That would help me a lot, as I do not know the code base.

It's a pretty standard catalog lookup.  Lemme see about a patch...

>   - Should the roles be fetched recursively, or should it be just
> the direct role members? My opinion is that direct role members is
> what is wanted.
>
> The output would be something like:
>
>  Role name |  Attributes  |       Member of        | Role members
> -----------+--------------+------------------------+---------------
>  hot2_dba  | Cannot login | {hot2_user,common_dba} | {akaariai}
>
>
>  - Anssi Kääriäinen

I'd say add first-level "Role members" to \du, all the way up the DAG (or
tree, if you're structured like that) for \du+

Cheers,
David.
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