Method column

cpp/src/arrow/record_batch.cc:108–114

  }

  std::shared_ptr<Array> column(int i) const override {
    std::lock_guard lock(mutex_);
    if (!boxed_columns_[i]) {
      boxed_columns_[i] = MakeArray(columns_[i]);
    }
    return boxed_columns_[i];
  }

  std::shared_ptr<ArrayData> column_data(int i) const override { return columns_[i]; }