Method set_cached_buffer

be/src/runtime/io/scan-buffer-manager.h:149–151

  bool Validate(const std::unique_lock<std::mutex>& scan_range_lock);

  void set_cached_buffer() {
    buffer_tag_ = BufferTag::CACHED_BUFFER;
  }

  void set_client_buffer() {
    buffer_tag_ = BufferTag::CLIENT_BUFFER;