milesgranger opened a new pull request, #13894: URL: https://github.com/apache/arrow/pull/13894
Will close [ARROW-15839](https://issues.apache.org/jira/browse/ARROW-15839) This will allow proper nulls in place of what is presently empty lists (on top level) when no mask is passed. ```python import pyarrow as pa arr = pa.array([None, [0]]) reconstructed_arr = pa.ListArray.from_arrays(arr.offsets, arr.values, mask=arr.is_null()) print(reconstructed_arr.to_pylist()) # [None, [0]] # Currently it doesn't accept `mask` and results in `[[], [0]]` unless explicit offsets set ``` There was also discussion with @jorisvandenbossche about renaming the added `null_bitmap` to `validity_bitmap`; but this will deviate from [existing `null_bitmap` use in the same area of code](https://github.com/apache/arrow/blob/d880d7517a33f2ac8ff259cad711bc210fd570c5/cpp/src/arrow/array/array_nested.h#L113). Should I change those names now or in a later PR/issue to standardize the `null_bitmap` / `validity_buf` naming? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
