pub unsafe fn make_limit( arg_lefttree: *mut Plan, arg_limitOffset: *mut Node, arg_limitCount: *mut Node, arg_limitOption: LimitOption, arg_uniqNumCols: c_int, arg_uniqColIdx: *mut AttrNumber, arg_uniqOperators: *mut Oid, arg_uniqCollations: *mut Oid) -> *mut Limit