//! Owner-scoped query cache handles.
//!
//! [`QueryCache`] stores structural membership; added/changed filters still apply at traversal.
//! [`QueryResultCache`] stores a materialized id list and rejects moving change windows.
use crateWorldOwner;
/// Handle to a cached structural membership set for one world owner and query spec.
/// Handle to a cached, fully materialized entity-id result for one world owner and query spec.