Re: pg_dump problems: [archiver (db)] query failed: ERROR: relation "pg_opfamily" does not exist - Mailing list pgsql-general

Adrian Klaver <adrian.klaver@aklaver.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