A per-state attribute link (sttrm_state_attribute) — associates a state with an sttrm_attribute.
$id is required: the platform allows more than one link between the same state and attribute
(tracked as separate records), so identity can never be safely derived from attribute alone.
A per-state attribute link (
sttrm_state_attribute) — associates a state with ansttrm_attribute.$idis required: the platform allows more than one link between the same state and attribute (tracked as separate records), so identity can never be safely derived fromattributealone.