PostGIS ST_ForceSFS Prev 8.5. Geometry Editors Next Name ST_ForceSFS — Force the geometries to use SFS 1.1 geometry types only. Synopsis geometry +`*`+ST_ForceSFS*(`geometry `geomA`)`; geometry +`*`+ST_ForceSFS*(`geometry `geomA, text version`)`; Description This function supports Polyhedral surfaces. This function supports Triangles and Triangulated Irregular Network Surfaces (TIN). This method supports Circular Strings and Curves This function supports 3d and will not drop the z-index. Prev Up Next ST_ForcePolygonCW Home ST_ForceRHR