Re: BUG #15708: RLS 'using' running as wrong user when called from a view

On Thu, 21 Mar 2019 at 00:39, PG Bug reporting form
<noreply@postgresql.org> wrote:
>
> This fails, seemingly because the RLS on 'bar' is being checked by alice,
> instead of the view owner bob:
>

Yes I agree, that appears to be a bug. The subquery in the RLS policy
should be checked as the view owner -- i.e., we need to propagate the
checkAsUser for the RTE with RLS to any subqueries in its RLS
policies.

It looks like the best place to fix it is in
get_policies_for_relation(), since that's where all the policies to be
applied for a given RTE are pulled together. Patch attached.

Regards,
Dean