Module schema 

SQL column identities, declared types, and logical slot layouts.

Modules

check_inheritance

CHECK definition merging at CREATE and ALTER inheritance boundaries.

columns

PostgreSQL column-name and stored-type declaration rules.

constraint_changes

Locate durable constraints and analyze changes to their type, identity, and enforcement metadata.

constraint_metadata

Normalize durable constraint names and identities through a caller-owned identity allocator.

constraint_views

Effective constraint views over stored column and table declarations.

constraints

Shared CREATE/ALTER validation for table constraints.

defaults

PostgreSQL-compatible validation for column default expressions.

dependencies

Traverse stored expressions and recognize their column dependencies.

domains

Domain declaration validation, inherited defaults, and constraint binding.

foreign_keys

Bind foreign-key declarations, select referenced keys, and validate REFERENCES privileges.

foreign_tables

Foreign-table declaration validation over fresh schema binding scopes and loaded sequence names.

generated

PostgreSQL 18 generated-column validation and row computation.

indexes

Immutable index-expression binding in the indexed table’s declared row type.

inheritance

CREATE TABLE inheritance and partition row-type preparation.

join_output

Static layouts shared by qualified joins and physical output shaping.

keys

Declaration and identity rules for newly added PRIMARY KEY and UNIQUE constraints.

namespaces

Namespace declaration rules independent of catalog storage.

relation_alteration

Native view and foreign-table alteration targets and relation rename declarations.

removal

DROP relation target binding, label protection and declared dependency discovery.

sequences

SQL sequence declarations, names, and ownership binding.

table_alteration

Bind inherited ALTER declarations and their durable constraint identities.

table_creation

CREATE TABLE column validation and CREATE TABLE AS result declarations.

truncate

TRUNCATE target expansion, partition rules and foreign-key dependency ordering.

view_creation

View target namespaces, replacement row types, and materialized-view declarations.

Structs

ColumnIdentity

Structured SQL column identity. A qualifier is metadata, never a prefix encoded into the column name, so quoted names containing . remain intact.

PhysicalLayout

RowSchema

Immutable column layout shared by an operator and all of its batches.

SchemaBindingContext

Routine metadata and immutable namespace inputs for schema expression binding.

SchemaLayoutError

Invalid schema layout supplied by a planner or a persisted row layout.

Enums

ProjectedSlot

Physical source of one scalar-projection output. Direct input slots stay in the child row; only computed values extend its physical layout.

Traits

SchemaExpressionCatalog

Definition lookup for generated columns and immutable index expressions.