Method Default

cpp/src/arrow/dataset/scanner.cc:874–878

}

Result<ProjectionDescr> ProjectionDescr::Default(const Schema& dataset_schema,
                                                 bool add_augmented_fields) {
  return ProjectionDescr::FromNames(dataset_schema.field_names(), dataset_schema,
                                    add_augmented_fields);
}

void SetProjection(ScanOptions* options, ProjectionDescr projection) {
  options->projection = std::move(projection.expression);