MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
A MultiSurface
is a geometry collection
composed of surface elements. MultiSurface
is a noninstantiable class. Its only instantiable subclass is
MultiPolygon
.
MultiSurface
Assertions
Surfaces within a
MultiSurface
have no interiors that intersect.Surfaces within a
MultiSurface
have boundaries that intersect at most at a finite number of points.