PostGIS

ST_ForceSFS — Force the geometries to use SFS 1.1 geometry types only.

geometry +`*`+ST_ForceSFS*(`geometry `geomA`)`;

geometry +`*`+ST_ForceSFS*(`geometry `geomA, text version`)`;

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.