Method CanZeroCopy

python/pyarrow/src/arrow/python/arrow_to_pandas.cc:1582–1589

  using TypedPandasWriter<NPY_DATETIME>::TypedPandasWriter;

  bool CanZeroCopy(const ChunkedArray& data) const override {
    if (data.type()->id() == Type::TIMESTAMP) {
      const auto& type = checked_cast<const TimestampType&>(*data.type());
      return IsNonNullContiguous(data) && type.unit() == UNIT;
    } else {
      return false;
    }
  }

  Status CopyInto(std::shared_ptr<ChunkedArray> data, int64_t rel_placement) override {
    const auto& ts_type = checked_cast<const TimestampType&>(*data->type());