distance_geo_tpoint distance_tpoint_geo distance_tpoint_geo_internal distance_tpoint_tpoint distance_tpoint_tpoint_internal lw_dist_sphere_point_dist NAD_geo_stbox NAD_geo_tpoint NAD_stbox_geo NAD_stbox_stbox NAD_stbox_stbox_internal NAD_stbox_tpoint NAD_tpoint_geo NAD_tpoint_stbox NAD_tpoint_tpoint NAI_geo_tpoint NAI_tpoint_geo NAI_tpoint_geo_internal NAI_tpoint_tpoint shortestline_geo_tpoint shortestline_tpoint_geo shortestline_tpoint_tpoint shortestline_tpoint_tpoint_internal tpoint_min_dist_at_timestamp

NAI_tpoint_tpoint() Datum NAI_tpoint_tpoint ( PG_FUNCTION_ARGS  ) Returns the nearest approach instant between the temporal points.