From: | Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com> |
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To: | Michael Paquier <michael(at)paquier(dot)xyz> |
Cc: | Kyotaro Horiguchi <horikyota(dot)ntt(at)gmail(dot)com>, Martín Marqués <martin(at)2ndquadrant(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Read access for pg_monitor to pg_replication_origin_status view |
Date: | 2020-06-09 08:07:39 |
Message-ID: | CA+fd4k6OuoNteNo3oAK0snobR0i7rr+88S96GkTH0KjVJ0ZYMg@mail.gmail.com |
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On Tue, 9 Jun 2020 at 16:36, Michael Paquier <michael(at)paquier(dot)xyz> wrote:
>
> On Tue, Jun 09, 2020 at 03:32:24PM +0900, Masahiko Sawada wrote:
> > One thing I'm concerned with this change is that we will end up
> > needing to grant both execute on pg_show_replication_origin_status()
> > and select on pg_replication_origin_status view when we want a
> > non-super user to access pg_replication_origin_status. It’s unlikely
> > that the user can grant both privileges at once as
> > pg_show_replication_origin_status() is not documented.
>
> Not sure if that's worth worrying. We have similar cases like that,
> take for example pg_file_settings with pg_show_all_file_settings()
> which requires both a SELECT ACL on pg_file_settings and an EXECUTE
> ACL on pg_show_all_file_settings(). My point is that if you issue a
> GRANT SELECT on the catalog view, the user can immediately see when
> trying to query it that an extra execution is needed.
Oh, I see. There might be room for improvement but it's a separate issue.
I agreed with the change you proposed.
Regards,
--
Masahiko Sawada http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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