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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2017/04/07 15:48:41 UTC

[jira] [Commented] (ARROW-707) Python: All none-Pandas column should be converted to NullArray

    [ https://issues.apache.org/jira/browse/ARROW-707?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15960992#comment-15960992 ] 

Wes McKinney commented on ARROW-707:
------------------------------------

I made this a blocker for 0.3. [~robertnishihara] [~pcmoritz] I noticed you have some NullArray-specific stuff in Ray, are there some missing features in Arrow that you need?

> Python: All none-Pandas column should be converted to NullArray
> ---------------------------------------------------------------
>
>                 Key: ARROW-707
>                 URL: https://issues.apache.org/jira/browse/ARROW-707
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Uwe L. Korn
>            Assignee: Uwe L. Korn
>             Fix For: 0.3.0
>
>
> At the moment we throw {{ArrowException: Type error: Unable to infer type of object array, were all null}} but for this case we have {{NullArray}} inside of Arrow.



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