Robert Haas <robertmh...@gmail.com> writes: > On Thu, Jun 16, 2022 at 10:01 PM Justin Pryzby <pry...@telsasoft.com> wrote: >> To me, oid>=16384 seems more hard-wired than namespace!='pg_catalog'.
> Extensions can be installed into pg_catalog, but they can't get > low-numbered OIDs. Exactly. (To be clear, I had in mind writing something involving FirstNormalObjectId, not that you should put literal "16384" in the code.) regards, tom lane