Method Inspect

cpp/src/arrow/dataset/discovery.cc:58–66

DatasetFactory::DatasetFactory() : root_partition_(compute::literal(true)) {}

Result<std::shared_ptr<Schema>> DatasetFactory::Inspect(InspectOptions options) {
  ARROW_ASSIGN_OR_RAISE(auto schemas, InspectSchemas(std::move(options)));

  if (schemas.empty()) {
    return arrow::schema({});
  }

  return UnifySchemas(schemas, options.field_merge_options);
}

Result<std::shared_ptr<Dataset>> DatasetFactory::Finish() {
  FinishOptions options;