Re: Postgres Permissions Article

Karsten Hilbert <karsten.hilbert@gmx.net>

From: Karsten Hilbert <Karsten.Hilbert@gmx.net>
To: pgsql-general@postgresql.org
Date: 2017-03-29T09:37:15Z
Lists: pgsql-hackers, pgsql-general
On Tue, Mar 28, 2017 at 09:47:40AM -0700, Paul Jungwirth wrote:

> I wrote a blog post about the Postgres permissions system, and I thought I'd
> share:
> 
> http://illuminatedcomputing.com/posts/2017/03/postgres-permissions/

> I also shared a few opinions amidst the facts (like that `USAGE` for schemas
> doesn't add much), so I am very pleased to have those challenged. You can
> consider them my own outstanding questions. I'd be especially grateful for
> any feedback there.

Not that I am an expert in any way but here's a thought on
why a permission on foreign key creation might be useful:

Being able to create foreign keys may allow to indirectly
discover whether certain values exists in a table which I
don't otherwise have access to (by means of failure or
success to create a judiciously crafted FK).

Karsten
-- 
GPG key ID E4071346 @ eu.pool.sks-keyservers.net
E167 67FD A291 2BEA 73BD  4537 78B9 A9F9 E407 1346


Commits

  1. For foreign keys, check REFERENCES privilege only on the referenced table.