Method flush

bolt/serializers/PrestoSerializer.cpp:3622–3624

The SerializedPage layout is: numRows(4) | codec(1) | uncompressedSize(4) | compressedSize(4) | checksum(8) | data

  // numRows(4) | codec(1) | uncompressedSize(4) | compressedSize(4) |
  // checksum(8) | data
  void flush(OutputStream* out) override {
    flushStreams(streams_, numRows_, *streamArena_, *codec_, out);
  }

  void flushEncoded(const RowVectorPtr& vector, OutputStream* out) {
    BOLT_CHECK_EQ(0, numRows_);