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https://issues.apache.org/jira/browse/ARROW-1559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16252913#comment-16252913
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ASF GitHub Bot commented on ARROW-1559:
---------------------------------------

wesm commented on issue #1266: ARROW-1559: [C++] Add Unique kernel and refactor 
DictionaryBuilder to be a stateful kernel
URL: https://github.com/apache/arrow/pull/1266#issuecomment-344480057
 
 
   Consider it done. The Python tests are segfaulting due to something it seems 
I broke in the cast code path, so I'll look into that tomorrow and also address 
the `BooleanType` hashing

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> [C++] Kernel implementations for "unique" (compute distinct elements of array)
> ------------------------------------------------------------------------------
>
>                 Key: ARROW-1559
>                 URL: https://issues.apache.org/jira/browse/ARROW-1559
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Assignee: Uwe L. Korn
>              Labels: Analytics, pull-request-available
>             Fix For: 0.8.0
>
>




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