pg_inherits
The catalog pg_inherits records information about table and index inheritance hierarchies. There is one entry for each direct parent-child table or index relationship in the database. (Indirect inheritance can be determined by following chains of entries.)
English manual coverage begins with PostgreSQL 7.4. Source history and runtime observations have their own recorded version boundaries.
Reading PG 18·Select a recorded version
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- inhrelid, inhparent, inhseqno, inhdetachpending
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Definition PG 18
The catalog pg_inherits records information about table and index inheritance hierarchies. There is one entry for each direct parent-child table or index relationship in the database. (Indirect inheritance can be determined by following chains of entries.)
Catalog columns
| Column | Type | Nullability | Description |
|---|---|---|---|
| inhrelid | oid | Not null | The OID of the child table or index |
| inhparent | oid | Not null | The OID of the parent table or index |
| inhseqno | int4 | Not null | If there is more than one direct 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. Indexes cannot have multiple inheritance, since they can only inherit when using declarative partitioning. |
| inhdetachpending | bool | Not null | true for a partition that is in the process of being detached; false otherwise. |
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Source references
Full definition and evidence JSON
Definition sources
center · PostgreSQL 18 · catalog-bilingual-repair:8626095266de6613975850f9331bc509bc3b421c5c578d8426e753484d22db86
Text language: en · catalog-bilingual-repair:8626095266de6613975850f9331bc509bc3b421c5c578d8426e753484d22db86