Re: BUG #18387: Erroneous permission checks and/or misleading error messages with refresh materialized view

On Tue, Mar 12, 2024 at 01:02:16AM +0200, Heikki Linnakangas wrote:
> On 11/03/2024 22:10, PG Bug reporting form wrote:
> > Reproducer log (starting from interesting part):
> > test=# REFRESH MATERIALIZED VIEW CONCURRENTLY test_mv;
> > REFRESH MATERIALIZED VIEW
> > test=# alter materialized view test_mv owner to test_role;
> > ALTER MATERIALIZED VIEW
> > test=# REFRESH MATERIALIZED VIEW CONCURRENTLY test_mv;
> > ERROR:  permission denied for table test
> > --what??? N1
> > 
> > --check that im not hallucinating
> > test=# select * from test;
> >   val
> > -----
> >     1
> > (1 row)
> 
> So far, this is working correctly. REFRESH MATERIALIZED VIEW runs with the
> permissions of the materialized view's owner. In this case, the owner is
> 'test_role', which doesn't have select permission on the table.

Can we do a better job of suggesting the cause of the failure?

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Only you can decide what is important to you.