Re: Multivariate MCV stats can leak data to unprivileged users

Dean Rasheed <dean.a.rasheed@gmail.com> writes:
> On the other hand, pg_dump relies on pg_statistic_ext to work out
> which extended statistics objects to dump. If we were to change that
> to use pg_stats_ext, then a user dumping a table with RLS using the
> --enable-row-security flag wouldn't get any extended statistics
> objects, which would be a somewhat surprising result.

It seems like what we need here is to have a separation between the
*definition* of a stats object (which is what pg_dump needs access
to) and the current actual *data* in it.  I'd have expected that
keeping those in separate catalogs would be the thing to do, though
perhaps it's too late for that.

			regards, tom lane