Method Project

cpp/src/arrow/dataset/test_util_internal.h:505–510

  }

  void Project(std::vector<std::string> names) {
    ASSERT_OK_AND_ASSIGN(auto projection, ProjectionDescr::FromNames(
                                              std::move(names), *opts_->dataset_schema,
                                              /*add_augmented_fields=*/true));
    SetProjection(opts_.get(), std::move(projection));
  }

  void Project(std::vector<compute::Expression> exprs, std::vector<std::string> names) {
    ASSERT_OK_AND_ASSIGN(auto projection,