MySQL 8.4 Release Notes
A Surface
is a two-dimensional geometry. It
is a noninstantiable class. Its only instantiable subclass is
Polygon
.
Surface
Properties
A
Surface
is defined as a two-dimensional geometry.The OpenGIS specification defines a simple
Surface
as a geometry that consists of a single “patch” that is associated with a single exterior boundary and zero or more interior boundaries.The boundary of a simple
Surface
is the set of closed curves corresponding to its exterior and interior boundaries.