>
>
> Interesting. Can you nail down the software versions that were in
> use here? That'd be the old PG server version upgraded from, the
> new server version upgraded to, the versions of pg_upgrade and
> pg_dump (these probably should match the new server version, but
> I'm not certain we enforce that), and the pg_upgradecluster
> script version?
>
Well, it was an upgrade from 9.5 to 10. Unfortunately I can't pin down any
other or more exact versions any longer.
The command we used was "pg_upgradecluster 9.5 main -m upgrade -k -v 10"
Regards, Tobias