Method checkOrcVersion

c++/src/Reader.cc:913–920

  }

  void ReaderImpl::checkOrcVersion() {
    FileVersion version = getFormatVersion();
    if (version != FileVersion(0, 11) && version != FileVersion(0, 12)) {
      *(options_.getErrorStream())
          << "Warning: ORC file " << contents_->stream->getName()
          << " was written in an unknown format version " << version.toString() << "\n";
    }
  }

  std::unique_ptr<RowReader> ReaderImpl::createRowReader() const {
    RowReaderOptions defaultOpts;