pub fn begin_datastore_creation(
connection: &PgDatastoreCreationConnection,
administrator_password: &SecretMaterial,
catalog_password: &SecretMaterial,
spec: PgDatastoreCreationSpec,
) -> PgDatastoreCreationStartExpand description
Creates the target database and immediately records its creating binding,
then performs the remaining PostgreSQL side effects under the same advisory
lock. Failures after the binding is durable return the pending capability so
the caller can atomically mark the saga failed.