ST_MakeBox3D — Creates a BOX3D defined by the given 3d point geometries.
box3d ST_MakeBox3D(geometry  point3DLowLeftBottom, geometry  point3DUpRightTop);
Creates a BOX3D defined by the given 2 3D point geometries.
 This function supports 3d and will not drop the z-index.
 This function supports 3d and will not drop the z-index.