Method FromRecordBatchReader

cpp/src/arrow/dataset/scanner.cc:902–909

                     std::move(scan_options)) {}

std::shared_ptr<ScannerBuilder> ScannerBuilder::FromRecordBatchReader(
    std::shared_ptr<RecordBatchReader> reader) {
  auto batch_it = MakeIteratorFromReader(reader);
  auto fragment =
      std::make_shared<OneShotFragment>(reader->schema(), std::move(batch_it));
  return std::make_shared<ScannerBuilder>(reader->schema(), std::move(fragment),
                                          std::make_shared<ScanOptions>());
}

const std::shared_ptr<Schema>& ScannerBuilder::schema() const {
  return scan_options_->dataset_schema;