edponce commented on pull request #11527:
URL: https://github.com/apache/arrow/pull/11527#issuecomment-949994868
_Note:_ The `CArrayData` of a `CRecordBatch` can still be accessed without
`column_data()` via the `data()` method of `CArray`.
```python
def get_array_data(obj):
cdef:
shared_ptr[CRecordBatch] record = pyarrow_unwrap_batch(obj)
shared_ptr[CArray] array
shared_ptr[CArrayData] data
array = record.get().column(1)
data = array.get().data()
return data.get()
```
but `column_data()` allows a more direct access
```python
def get_array_data(obj):
cdef:
shared_ptr[CRecordBatch] record = pyarrow_unwrap_batch(obj)
shared_ptr[CArrayData] data
data = record.get().column_data(1)
return data.get()
```
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