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.
  
Table 53.25. pg_foreign_table Columns
| Column Type Description | 
|---|
| 
        
       The OID of the  | 
| 
        OID of the foreign server for this foreign table | 
| 
        Foreign table options, as “keyword=value” strings |