Module inheritance 

CREATE TABLE inheritance and partition row-type preparation.

Modules

alter

ALTER inheritance and partition declaration rules over immutable column and constraint definitions.

detachment

Preserve local constraint rows while separating detached foreign-key enforcement families.

foreign_keys

The foreign keys a partition holds for the foreign keys of its partitioned parent: an equivalent foreign key of its own that it attaches, or a copy, as PostgreSQL’s tryAttachPartitionForeignKey and addFkConstraint decide.

origins

Track whether NOT NULL and CHECK declarations are local after a hierarchy edge changes.

restoration

Retain local schema objects when legacy hierarchy edges lose their parent.

Structs

InheritanceContext

MergedParents

What MergeAttributes hands the steps that follow it: the columns whose default or generation expression a parent gives, and the NOT NULL constraints the parents give.

Traits

InheritanceCatalog

Parent lookup and constraint declarations used while assembling a new row type.

Functions

bind_create_table_partitioning

The bound of a new partition and the partition key of a new partitioned table, in DefineRelation order: transformPartitionBound and check_new_partition_bound before ComputePartitionAttrs.

inheritance_parent_target

The parent relation that INHERITS names: table_openrv refuses indexes and composite types, and MergeAttributes accepts only tables. Foreign tables are not inheritance parents here.

merge_create_table_hierarchy

MergeAttributes: the columns, CHECK constraints and partition keys a new table inherits from its parents, ahead of its own, with the notices that report each merged column. DefineRelation first looks up every parent, rejecting one named twice; the table’s own columns cannot repeat a name. The table’s partition key and bound are bound by bind_create_table_partitioning once its row type is described, as DefineRelation computes them after creating the relation.

merge_same_column