> This is a psql artifact, not a feature supported by the backend.
> If you want to do likewise, emulate the code in src/bin/psql/large_obj.c.
Thanks, it seems that since I also want to allow non-superusers as well to
'trigger' an automagically created comment on a large object 'upload', it was
easier to use a plpgsql function on the system tables with security definer.
--
Best,
Frank.