Whit Armstrong <armstrong.whit@gmail.com> writes:
> Is it possible to find out the OID types of the columns of a table
> using the information schema?
No. Type OIDs are a Postgres-ism so they are not reflected in the
standards-mandated contents of the information_schema. If you want
OIDs you'll need to look at the underlying catalogs (pg_attribute
in particular).
regards, tom lane