Function DictionaryScalar

cpp/src/arrow/scalar.h:871–875

  } value;

  explicit DictionaryScalar(std::shared_ptr<DataType> type);

  DictionaryScalar(ValueType value, std::shared_ptr<DataType> type, bool is_valid = true)
      : internal::PrimitiveScalarBase(std::move(type), is_valid),
        value(std::move(value)) {}

  static std::shared_ptr<DictionaryScalar> Make(std::shared_ptr<Scalar> index,
                                                std::shared_ptr<Array> dict);