Module ontology 

Catalog ontology views derived from existing builtin definitions.

Enumerates builtins that have ontology: Some(...) and generates 4 views:

• entity_types: from ontology.description + RelationDesc::keys()
• properties: from mz_columns + mz_comments + semantic type inference
• semantic_types: small const reference data
• link_types: from ontology.links on each builtin

Structs

Info 🔒

Enums

Lit 🔒

A single typed SQL literal for use inside a VALUES list.

Constants

SEMANTIC_TYPE_DEFS 🔒

Functions

entity_types_view 🔒

esc 🔒

Escape single quotes for SQL string literals. Only safe for trusted compile-time constants (entity names, descriptions, link JSON from Ontology annotations) — never use with user-supplied input.

generate_views 🔒

leak 🔒

Leak a BuiltinView to get a &'static reference. Called exactly 4 times at startup (one per ontology view). These views live for the entire process lifetime (same as LazyLock<&'static BuiltinView> used by other builtins), so the leak is intentional and bounded.

link_types_view 🔒

pk_lit 🔒

Extract all keys from a RelationDesc and return a Lit::Json with shape: {"primary_key": ["id"], "alternate_keys": [["oid"]]}. primary_key is the first declared key; alternate_keys contains any additional unique keys. Returns Lit::Null if no keys are defined.

properties_view 🔒

Build the mz_ontology_properties view: one row per column of every annotated builtin relation.

semantic_types_view 🔒

sql_type_name 🔒

Map a SqlScalarType to the SQL type name used in cast expressions.

values_sql 🔒

Render rows into a SQL VALUES (r1c1,r1c2,...),(r2c1,...) fragment. Used when a VALUES list appears as a subquery inside a larger SQL string rather than as the top-level source of a values_view.

values_view 🔒

Build an ontology view from a static VALUES list. Each row is a Vec<Lit>; all escaping and type-casting is handled here so callers never touch SQL string formatting directly.