PostGIS
Description
Returns a box3d representing the 3D extent of the geometry.
Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was introduced.
This
method supports Circular Strings and Curves.
This
function supports Polyhedral surfaces.
This
function supports Triangles and Triangulated Irregular Network Surfaces
(TIN).
This
function supports 3d and will not drop the z-index.