Function UnsafeAppendNull

cpp/src/arrow/array/builder_binary.h:684–687

  }

  void UnsafeAppendNull() {
    data_builder_.UnsafeAppend(BinaryViewType::c_type{});
    UnsafeAppendToBitmap(false);
  }

  void UnsafeAppendEmptyValue() {
    data_builder_.UnsafeAppend(BinaryViewType::c_type{});