geo_collect_garray geo_makeline_garray geo_npoints geom_array_union geom_boundary geom_buffer geom_centroid geom_convex_hull geom_difference2d geom_intersection2d geom_shortestline2d geom_shortestline3d geom_unary_union line_interpolate_point line_locate_point line_substring

geo_npoints() int geo_npoints ( const GSERIALIZED *  gs ) Return the number of points of a geometry. Parameters [in] gs Geometry/geography Note PostGIS function: ST_Points(PG_FUNCTION_ARGS)