Bruce Momjian wrote:
> KaiGai Kohei wrote:
> > > What happens when
> > > there is no entry in pg_largeobject_metadata for a specific row?
> >
> > In this case, these rows become orphan.
> > So, I think we need to create an empty large object with same LOID on
> > pg_migrator. It makes an entry on pg_largeobject_metadata without
> > writing anything to the pg_largeobject.
> > I guess rest of migrations are not difference. Correct?
>
> Agreed. I have modified pg_migrator with the attached patch which
> creates a script that adds default permissions for all large object
> tables.
Oops, seem like I have a problem in getting pg_migrator to populate
pg_largeobject_metadata:
test=> select lo_import('/etc/profile'); lo_import----------- 16385(1 row)test=> select
lo_import('/etc/profile.env');lo_import----------- 16386(1 row)test=> select oid,* from pg_largeobject_metadata;
oid | lomowner | lomacl-------+----------+-------- 16385 | 10 | 16386 | 10 |(2 rows)
You might remember that INSERT cannot set the oid of a row, so I don't
see how pg_migrator can migrate this? Is there a reason we used 'oid'
in pg_largeobject_metadata but 'lobj' in pg_largeobject? Why did't we
add the lomowner and lomacl columns to pg_largeobject?
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
