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Posted to dev@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2017/05/08 00:56:04 UTC

[jira] [Created] (ARROW-971) [C++/Python] Implement Array.isvalid/notnull/isnull

Wes McKinney created ARROW-971:
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             Summary: [C++/Python] Implement Array.isvalid/notnull/isnull
                 Key: ARROW-971
                 URL: https://issues.apache.org/jira/browse/ARROW-971
             Project: Apache Arrow
          Issue Type: Improvement
          Components: Python
            Reporter: Wes McKinney
             Fix For: 0.4.0


For arrays with nulls, this amounts to returning the validity bitmap. Without nulls, an array of all 1 bits must be constructed. For isnull, the bits must be flipped (in this case, the un-set part of the new bitmap must stay 0, though).



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