STIntersectsMULTIPOLYGON

STIntersectsMU, sometimes written STIntersectsMU..., is a proposed extension to the STIntersects spatial predicate used in geographic information systems to determine whether two geometries intersect. The MU designation signals multi-user or multi-tenant support, designed for distributed databases and collaborative mapping environments, to deliver deterministic results under concurrent modifications and queries while remaining compatible with standard interfaces.

In practice, STIntersectsMU maintains the core STIntersects criterion—do the geometries share any common area—while adding transactional context, partition awareness, and concurrency controls. Implementation typically relies on existing spatial indexes and partitioning schemes, applying multi-version concurrency control or locking to ensure isolation, and may provide a fast-path for static geometries with cache-backed results.

Common use cases include large urban planning datasets, environmental monitoring platforms, and real-time collaborative GIS dashboards where many users query and update large layers. Adoption considerations include additional computational overhead, storage of transaction metadata, and the need for platform support, as STIntersectsMU is not a formal standard and behavior may vary across systems.