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Posted to dev@arrow.apache.org by "Uwe L. Korn (JIRA)" <ji...@apache.org> on 2017/01/17 07:58:26 UTC

[jira] [Created] (ARROW-489) Python: Pandas zero-copy for ListArrays conversion

Uwe L. Korn created ARROW-489:
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             Summary: Python: Pandas zero-copy for ListArrays conversion
                 Key: ARROW-489
                 URL: https://issues.apache.org/jira/browse/ARROW-489
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Uwe L. Korn


In the case of the conversion of a list column to a pandas column, currently we always do a copy even though in the numeric case, we could avoid it most of the time. To enable zero-copy conversions, we need to pass a Python reference to a {{pyarrow.Column}} to the {{ConvertColumnToPandas}} inside of {{ConvertListsLike}}. 



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