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https://issues.apache.org/jira/browse/ARROW-1689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16214102#comment-16214102
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Nick White commented on ARROW-1689:
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Working on this myself at https://github.com/apache/arrow/pull/1233
> [Python] Categorical Indices Should Be Zero-Copy
> ------------------------------------------------
>
> Key: ARROW-1689
> URL: https://issues.apache.org/jira/browse/ARROW-1689
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Affects Versions: 0.7.1
> Reporter: Nick White
> Labels: pull-request-available
>
> It seems like
> [WriteIndices|https://github.com/apache/arrow/blob/0c8b861f93884f2868eb631d8fceee3a8b8905ec/cpp/src/arrow/python/arrow_to_pandas.cc#L955-L981]
> could reuse some of the logic in
> [ConvertValuesZeroCopy|https://github.com/apache/arrow/blob/0c8b861f93884f2868eb631d8fceee3a8b8905ec/cpp/src/arrow/python/arrow_to_pandas.cc#L1348-L1385]
> to avoid copying the integer indices array?
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