pg_foreign_table
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.
pg_foreign_table Columns
| Column Type | Description |
|---|---|
ftrelid oid (references pg_class.oid) | The OID of the pg_class entry for this foreign table |
ftserver oid (references pg_foreign_server.oid) | OID of the foreign server for this foreign table |
ftoptions text[] | Foreign table options, as “keyword=value” strings |