Converts a 3D ST_Geometry value to a 2D ST_Geometry value, and optionally validates that the 2D geometry is well formed. This method strips the z coordinate from 3D geometries.
Converts a 3D ST_Geometry value to a 2D ST_Geometry value, and optionally validates that the 2D geometry is well formed. This method strips the z coordinate from 3D geometries.