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Posted to dev@arrow.apache.org by "Antoine Pitrou (JIRA)" <ji...@apache.org> on 2018/07/12 17:24:00 UTC

[jira] [Created] (ARROW-2838) [Python] Speed up null testing with Pandas semantics

Antoine Pitrou created ARROW-2838:
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             Summary: [Python] Speed up null testing with Pandas semantics
                 Key: ARROW-2838
                 URL: https://issues.apache.org/jira/browse/ARROW-2838
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++, Python
    Affects Versions: 0.9.0
            Reporter: Antoine Pitrou
            Assignee: Antoine Pitrou


The {{PandasObjectIsNull}} helper function can be a significant contributor when converting a Pandas dataframe to Arrow format (e.g. when writing a dataframe to feather format). We can try to speed up the type checks in that function.



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