Method getFormatVersion

c++/src/Reader.cc:694–699

  }

  FileVersion ReaderImpl::getFormatVersion() const {
    if (contents_->postscript->version_size() != 2) {
      return FileVersion::v_0_11();
    }
    return {contents_->postscript->version(0), contents_->postscript->version(1)};
  }

  uint64_t ReaderImpl::getNumberOfRows() const {
    return footer_->number_of_rows();