This catalog records information about table inheritance hierarchies.
  
Table 3-17. pg_inherits Columns
| Name | Type | References | Description | 
|---|
| inhrelid | oid | pg_class.oid |        The OID of the child table.
       | 
| inhparent | oid | pg_class.oid |        The OID of the parent table.
       | 
| inhseqno | int4 |   |        If there is more than one parent for a child table (multiple
       inheritance), this number tells the order in which the
       inherited columns are to be arranged.  The count starts at 1.
       |