2.2.1.33 GeometryMultiPolygon

The GeometryMultiPolygon type represents a Geometry that is defined as the union of a set of GeometryPolygon instances. GeometryMultiPolygon is not equality comparable, so it cannot be used in keys. The meaning of a GeometryMultiPolygon is as the meaning of MultiPolygon in the OGC Simple Features specification ([OGC-SFACA/1.2.1] section 6.1.14).