| From: | Julien Rouhaud <rjuju123(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Gilles Darold <gilles(dot)darold(at)dalibo(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: [patch] Add schema total size to psql \dn+ |
| Date: | 2019-02-23 19:54:22 |
| Message-ID: | CAOBaU_Zb0n1NfK7xPeJ=RGvtziVNBMvqZMxXOKsRCoWSr5wkyg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Feb 22, 2019 at 7:22 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> Is there any permissions issue involved here? I'd be a bit worried
> about whether \dn+ could fail, or deliver misleading answers, when
> run by a user without permissions on (some) tables. Also, even if
> we allow people to get size info on tables they can't read today,
> having this feature would be a roadblock to tightening that in
> the future.
Gilles' patch is using pg_total_relation_size(), so there's no
permission check at all. Also AFAICS this function even allows any
user to get the size of any other user backend's temporary table.
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