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Posted to issues@arrow.apache.org by "Atri Sharma (JIRA)" <ji...@apache.org> on 2018/09/15 17:20:00 UTC

[jira] [Commented] (ARROW-1560) [C++] Kernel implementations for "match" function

    [ https://issues.apache.org/jira/browse/ARROW-1560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16616405#comment-16616405 ] 

Atri Sharma commented on ARROW-1560:
------------------------------------

Can someone please assign this to me?

> [C++] Kernel implementations for "match" function
> -------------------------------------------------
>
>                 Key: ARROW-1560
>                 URL: https://issues.apache.org/jira/browse/ARROW-1560
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Priority: Major
>              Labels: Analytics
>             Fix For: 0.12.0
>
>
> Match computes a position index array from an array values into a set of categories
> {code}
> match(['a', 'b', 'a', null, 'b', 'a', 'b'], ['b', 'a'])
> return [1, 0, 1, null, 0, 1, 0]
> {code}



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