PostgreSQL 7.1.3 Documentation
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# 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, from which the table referenced by `inhrelid` inherited from.
inhseqno | `int4` |  | If there is more than one subtable/parent pair (multiple inheritance), this number tells the order in which the inherited columns are to be arranged. The count starts at 1.

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