"Anton A. Melnikov" <aamelnikov(at)inbox(dot)ru> writes:
> Found out that test for pg_upgrade (test.sh for 11-14 and
> 002_pg_upgrade.pl for 15+) doesn't work from 10th versions to higher
> ones due to incompatible options for initdb and default PGDATA permissions.
The buildfarm animals that test cross-version upgrades are not
unhappy, so please be more specific about what problem you
are trying to solve.
regards, tom lane