Feature: has_parent_id

Tells the ores.sql.schema facet to generate a <product>_<component>_<entity_plural>_hierarchy_fn(p_tenant_id, p_root_id, p_from_root) recursive-CTE function that walks the entity's self-referencing tree, so consumers never hand-write their own recursive query. See Codegen entity meta-model — SQL § "Hierarchy: has_parent_id" for the worked counterparty example and what the generated function does and does not cover.

None directly on the entity's own columns — the function is generated independently of whether the self-referencing FK column exists. Two other properties become meaningful once this feature is set, :parent_id_column: and :hierarchy_name_field:, but both are themselves structural (they name real columns), not features; see Codegen entity meta-model — SQL.

• Self-referencing hierarchy

• ORE Studio Variability Model — the bundle this feature belongs to.