Method Write

cpp/src/arrow/dataset/file_csv_test.cc:47–53

 public:
  using FormatType = CsvFileFormat;
  static Result<std::shared_ptr<Buffer>> Write(RecordBatchReader* reader) {
    ARROW_ASSIGN_OR_RAISE(auto sink, io::BufferOutputStream::Create());
    ARROW_ASSIGN_OR_RAISE(auto table, reader->ToTable());
    auto options = csv::WriteOptions::Defaults();
    RETURN_NOT_OK(csv::WriteCSV(*table, options, sink.get()));
    return sink->Finish();
  }

  static std::shared_ptr<CsvFileFormat> MakeFormat() {
    auto format = std::make_shared<CsvFileFormat>();