Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> writes:
> On 8/20/19 6:18 AM, Erwin Moller wrote:
>> Will installing Postgres 11 also work? (Not the Ubuntu18.04 default for
>> Postgres, but doable).
>> Or does those pg_dump versions also expect pg_opfamily to exist?
> From the bug that introduced the issue:
> https://git.postgresql.org/gitweb/?p=postgresql.git;a=commit;h=07b39083c
> "Per bug #15934 from Tom Gottfried. Back-patch to all supported branches."
> So I'm guessing it is in the most recent release of all current versions.
Yeah, it's broken in all the August minor releases. Sorry about that :-(
regards, tom lane