On Thu, 2022-01-20 at 17:00 +0000, Garfield Lewis wrote: > I need the page and possibly row of the data location to be stored as an element > of the new type. This is to simulate a structure from another database system. As I said, that is impossible. Again, describe with many, many words what you are trying to achieve. There is probably a solution for the underlying problem. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com