pg_inherits

The pg_inherits catalog provides information about table and index inheritance.

Column name Data type Description
inhrelid oid (references pg_class.oid) The OID of the child table or index.
inhparent oid (references pg_class.oid) The OID of the parent table or index.
inhseqno int4 The position of the parent when a table has multiple direct parents (multiple inheritance). The numbering starts at 1.
Note: Indexes cannot have multiple inheritance. They may only inherit when used in declarative partitioning.
inhdetachpending bool Specifies whether the partition is currently being detached (TRUE) or not (FALSE).