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

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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@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.klaver@xxxxxxxxxxx





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