Method createDirectStreams

c++/src/ColumnWriter.cc:1185–1192

  }

  void StringColumnWriter::createDirectStreams() {
    std::unique_ptr<BufferedOutputStream> directLengthStream =
        streamsFactory.createStream(proto::Stream_Kind_LENGTH);
    directLengthEncoder = createRleEncoder(std::move(directLengthStream), false, rleVersion,
                                           memPool, alignedBitPacking);
    directDataStream.reset(
        new AppendOnlyBufferedStream(streamsFactory.createStream(proto::Stream_Kind_DATA)));
  }

  void StringColumnWriter::createDictStreams() {
    std::unique_ptr<BufferedOutputStream> dictDataStream =