18th October 2018: PostgreSQL 11 Released!
Supported Versions: Current (11) / 10 / 9.6 / 9.5 / 9.4 / 9.3
Development Versions: devel
Unsupported versions: 9.2 / 9.1 / 9.0 / 8.4 / 8.3 / 8.2 / 8.1 / 8.0 / 7.4 / 7.3 / 7.2 / 7.1

3.10. pg_inherits

This catalog records information about table inheritance hierarchies.

Table 3-10. pg_inherits Columns

Name Type References Description
inhrelid oid pg_class.oid This is the reference to the subtable, that is, it records the fact that the identified table is inherited from some other table.
inhparent oid pg_class.oid This is the reference to the parent table, which the table referenced by inhrelid inherited from.
inhseqno int4   If there is more than one parent for a subtable (multiple inheritance), this number tells the order in which the inherited columns are to be arranged. The count starts at 1.