Method query_boundaries

include/LightGBM/dataset.h:166–172

! * \brief Get data boundaries on queries, if not exists, will return nullptr * we assume data will order by query, * the interval of [query_boundaris[i], query_boundaris[i+1]) * is the data indices for query i. * \return Pointer of data boundaries on queries */

  * \return Pointer of data boundaries on queries
  */
  inline const data_size_t* query_boundaries() const {
    if (!query_boundaries_.empty()) {
      return query_boundaries_.data();
    } else {
      return nullptr;
    }
  }

  /*!
  * \brief Get Number of queries