MySQL 5.6 Reference Manual Including MySQL NDB Cluster 7.3-7.4 Reference Guide
A Point
is a geometry that represents a
single location in coordinate space.
Point
Examples
Imagine a large-scale map of the world with many cities. A
Point
object could represent each city.
On a city map, a Point
object could
represent a bus stop.
Point
Properties
X-coordinate value.
Y-coordinate value.
Point
is defined as a zero-dimensional
geometry.
The boundary of a Point
is the empty
set.