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

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
-dmyremotedb
 
> 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_amopo WHERE deptype NOT IN ('p', 'e', 'i') AND classid = 'pg_amop'::regclass AND objid = o.oid AND NOT (refclassid =
'pg_opfamily'::regclassAND amopfamily = refobjid)
 
> UNION ALL
> SELECT 'pg_opfamily'::regclass AS classid, amprocfamily AS objid, refclassid, refobjid, deptype FROM pg_depend d,
pg_amprocp 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

-- 
  Ian Barwick                   https://www.2ndQuadrant.com/
  PostgreSQL Development, 24x7 Support, Training & Services