Function cost_group

pub unsafe fn cost_group(
    arg_path: *mut Path,
    arg_root: *mut PlannerInfo,
    arg_numGroupCols: c_int,
    arg_numGroups: f64,
    arg_quals: *mut List,
    arg_input_startup_cost: Cost,
    arg_input_total_cost: Cost,
    arg_input_tuples: f64,
)