Function GetPhysicalArray

cpp/src/arrow/compute/kernels/vector_sort_internal.h:575–580

We could try to reproduce the concrete Array classes' facilities (such as cached raw values pointer) in a separate hierarchy of physical accessors, but doing so ends up too cumbersome. Instead, we simply create the desired concrete Array objects.

// physical accessors, but doing so ends up too cumbersome.
// Instead, we simply create the desired concrete Array objects.
inline std::shared_ptr<Array> GetPhysicalArray(
    const Array& array, const std::shared_ptr<DataType>& physical_type) {
  auto new_data = array.data()->Copy();
  new_data->type = physical_type;
  return MakeArray(std::move(new_data));
}

inline ArrayVector GetPhysicalChunks(const ArrayVector& chunks,
                                     const std::shared_ptr<DataType>& physical_type) {