On Thu, Dec 01, 2005 at 07:18:10PM -0800, Uwe C. Schroeder wrote: > Why not have something like the rowid in oracle? http://www.postgresql.org/docs/8.1/interactive/datatype-oid.html, search on ctid. And http://www.postgresql.org/docs/8.1/interactive/ddl-system-columns.html.