Doug Fields <dfields-pg-general(at)pexicom(dot)com> writes:
> The documentation does not give any information about how I might do this
> in the ALTER TABLE, so it may not be possible, at least, not that way.
ALTER TABLE doesn't support it, but you could reach in and tweak
pg_class.relhasoids for your tables. I think you would also need to
delete the pg_attribute row for oid for each such table if you wanted
to have a perfectly clean result.
regards, tom lane