On Fri, Feb 22, 2019 at 7:22 PM Tom Lane <t...@sss.pgh.pa.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.
