Method SortOptions

cpp/src/arrow/compute/api_vector.cc:191–195

      null_placement(std::nullopt) {}

SortOptions::SortOptions(std::vector<SortKey> sort_keys,
                         std::optional<NullPlacement> null_placement)
    : FunctionOptions(internal::kSortOptionsType),
      sort_keys(std::move(sort_keys)),
      null_placement(null_placement) {}
SortOptions::SortOptions(const Ordering& ordering)
    : FunctionOptions(internal::kSortOptionsType),
      sort_keys(ordering.sort_keys()),