Re: pg_dump problems: [archiver (db)] query failed: ERROR: relation "pg_opfamily" does not exist

On 8/20/19 7:37 AM, Erwin Moller wrote:
>
> Op 8/20/2019 om 3:32 PM schreef Adrian Klaver:
>> On 8/20/19 6:18 AM, Erwin Moller wrote:
>>>
>>>
>>> Op 8/20/2019 om 2:07 PM schreef Ian Barwick:
>>>> On 8/20/19 7:12 PM, Erwin Moller wrote:
>>>>> Hi,
>>>>>
>>>>> While trying to move an old 8.1 Postgres install to a new server
>>>>> with postgres 10.10, I get an error, listed hereunder:
>>>>> I am trying to get a mydump_x_x_x.sql file to use to reinstall on
>>>>> the target machine.
>>>>>
>>>>>  From my new machine I connect to my old machine like this:
>>>>> erwin(at)ubuntu:~$  pg_dump -f "/home/erwin/mydump_$(date
>>>>> +%d_%m_%Y).sql" -C -h somehost.com -p 5433 -U myvalidusername -d
>>>>> myremotedb
>>>>> Password:
>>>>> pg_dump: [archiver (db)] query failed: ERROR:  relation
>>>>> "pg_opfamily" does not exist
>>>>> pg_dump: [archiver (db)] query was: SELECT classid, objid,
>>>>> refclassid, refobjid, deptype FROM pg_depend WHERE deptype != 'p'
>>>>> AND deptype != 'e'
>>>>> UNION ALL
>>>>> SELECT 'pg_opfamily'::regclass AS classid, amopfamily AS objid,
>>>>> refclassid, refobjid, deptype FROM pg_depend d, pg_amop o WHERE
>>>>> deptype NOT IN ('p', 'e', 'i') AND classid = 'pg_amop'::regclass
>>>>> AND objid = o.oid AND NOT (refclassid = 'pg_opfamily'::regclass AND
>>>>> amopfamily = refobjid)
>>>>> UNION ALL
>>>>> SELECT 'pg_opfamily'::regclass AS classid, amprocfamily AS objid,
>>>>> refclassid, refobjid, deptype FROM pg_depend d, pg_amproc p WHERE
>>>>> deptype NOT IN ('p', 'e', 'i') AND classid = 'pg_amproc'::regclass
>>>>> AND objid = p.oid AND NOT (refclassid = 'pg_opfamily'::regclass AND
>>>>> amprocfamily = refobjid)
>>>>> ORDER BY 1,2
>>>>>
>>>>> And no archive is created.
>>>>>
>>>>> Does any of you kind people have advice? I am sure this worked on
>>>>> postgres9.
>>>>
>>>> It looks like this was broken just before 10.10 was released, and
>>>> has since been fixed;
>>>> see:
>>>>
>>>> https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=6844adba54f7d96f30f834efc6d9aa1e52e5672d
>>>>
>>>>
>>>> Your options are:
>>>>  - find a 10.9 or earlier package and use the pg_dump from that
>>>>  - build pg_dump yourself
>>>>  - wait for 10.11 to come out (though I imagine that won't be for a
>>>> month or two)
>>>>
>>>>
>>>> Regards
>>>>
>>>> Ian Barwick
>>>>
>>>
>>> Thanks a lot, Ian!
>>>
>>> That saved me an upcoming headache. I searched a lot on Google but
>>> couldn't find any relevant information.
>>>
>>> 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.
>
> Thank you, Adrian.
>
> That is a bummer.
> Since I have no idea how to safely install an older version of pg_dump
> alongside my current 10.10 install, I will wait for the patch.

A quick test showed that:

1) Go here:
https://apt.postgresql.org/pub/repos/apt/pool/main/p/postgresql-11/

2) Grab
https://apt.postgresql.org/pub/repos/apt/pool/main/p/postgresql-11/postgresql-client-11_11.4-1.pgdg18.10%2b1_amd64.deb

3) Using Ark extract pg_dump from data.tar.xz at path
/usr/lib/postgresql/11/bin

./pg_dump -V
pg_dump (PostgreSQL) 11.4 (Ubuntu 11.4-1.pgdg18.10+1)

I do not have a 8.1 instance to try against, so I could not test that part.

>
> Thank you for your responses!
>
> Regards,
> Erwin Moller
>
>
>
>
>

--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com