Function ReconstructChunksWithoutNulls

cpp/src/parquet/arrow/reader_internal.cc:355–364

Drop the validity buffer from each chunk. Used when reading a non-nullable field.

///
/// Used when reading a non-nullable field.
void ReconstructChunksWithoutNulls(::arrow::ArrayVector* chunks) {
  for (size_t i = 0; i < chunks->size(); i++) {
    if ((*chunks)[i]->data()->buffers[0]) {
      std::shared_ptr<::arrow::ArrayData> data = (*chunks)[i]->data();
      data->null_count = 0;
      data->buffers[0] = nullptr;
      (*chunks)[i] = MakeArray(data);
    }
  }
}

template <typename ArrowType, typename ParquetType>
void AttachStatistics(::arrow::ArrayData* data,