message: vector size() -> empty()
diff: @@ -366,7 +366,7 @@ unique_ptr<BoundQueryNode> Binder::BindNode(SelectNode &statement) {
  // QUALIFY clause requires at least one window function to be specified in at least one of the SELECT column list or
  // the filter predicate of the QUALIFY clause
  - if (statement.qualify && result->windows.size() <= 0) {
  + if (statement.qualify && result->windows.empty()) {
  throw BinderException("at least one window function must appear in the SELECT column or QUALIFY clause");
  }
  