Re: permission denied for large object 200936761

On 2/1/21 2:20 PM, Andrus wrote:
> Hi!
>
> >Obviously large objects *are* used.
>
>> >You have to grant the database use permissions with
>>
>> > GRANT SELECT ON LARGE OBJECT 200936761 TO dumpuser;
>>
>> >Alternatively, use the -B option of pg_dump to skip dumping
>> >large objects.
>
> I added -B option and changed postgresql.conf  to
> lo_compat_privileges=on   as temporary fix.
>
> dumpuser has created backups of same two schemas for years without
> issues. The issue starts to occur today.

What code changed between the last backup and today?

>
> Application does not create large objects. It uses bytea columns instead.
>
> How to figure out what is this large object ?

You could try some of the functions here:

https://www.postgresql.org/docs/12/lo-funcs.html

to see if you can figure it out.
>
> Andrus.
>

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