The catalog pg_foreign_table contains auxiliary information about foreign tables. A foreign table is primarily represented by a pg_class entry, just like a regular table. Its pg_foreign_table entry contains the information that is pertinent only to foreign tables and not any other kind of relation.

Table 49-25. pg_foreign_table Columns

Name Type References Description
ftrelid oid pg_class .oid OID of the pg_class entry for this foreign table
ftserver oid pg_foreign_server .oid OID of the foreign server for this foreign table
ftoptions text[] Foreign table options, as "keyword=value" strings