MySQL 5.7 Reference Manual Including MySQL NDB Cluster 7.5 and NDB Cluster 7.6
A MultiPoint is a geometry collection
composed of Point elements. The points are
not connected or ordered in any way.
MultiPoint
Examples
On a world map, a MultiPoint could
represent a chain of small islands.
On a city map, a MultiPoint could
represent the outlets for a ticket office.
MultiPoint
Properties
A MultiPoint is a zero-dimensional
geometry.
A MultiPoint is simple if no two of its
Point values are equal (have identical
coordinate values).
The boundary of a MultiPoint is the
empty set.