| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Noah Misch <noah(at)leadboat(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp>, Robert Haas <robertmhaas(at)gmail(dot)com>, David Steele <david(at)pgmasters(dot)net>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Gavin Flower <GavinFlower(at)archidevsys(dot)co(dot)nz>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Adam Brightwell <adam(dot)brightwell(at)crunchydatasolutions(dot)com>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Petr Jelinek <petr(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Additional role attributes && superuser review |
| Date: | 2016-01-18 02:31:59 |
| Message-ID: | 20160118023159.GE31313@momjian.us |
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| Lists: | pgsql-hackers |
On Sun, Jan 17, 2016 at 09:23:14PM -0500, Stephen Frost wrote:
> > > Group ownership and permissions aren't a backup-method-specific
> > > requirement either, in my view. I'm happy to chat with Marco (who has
> > > said he would be weighing in on this thread when he is able to)
> > > regarding barman, and whomever would be appropriate for BART (perhaps
> > > you could let me know..?), but if it's possible to do a backup without
> > > being a superuser and with only read access to the data directory, I
> > > would expect every backup soltuion to view that as a feature which they
> > > want to support, as there are environments which will find it desirable,
> > > at a minimum, and even some which will require it.
> >
> > pg_dump doesn't need to read the PGDATA directory, and I thought this
> > permission was to be used by pg_dump users as well.
>
> No. That has been a source of confusion, though I'm not quite sure how
> or why, beyond the general assumption that anything 'backup' must
> include 'pg_dump' (I don't generally consider that to be the case,
> myself, but it seems others do...).
I think the source of that is that many people have asked for
backup-only uses, and I thought running pg_dump or pg_dumpall was one of
those cases.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
+ Roman grave inscription +
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