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https://issues.apache.org/jira/browse/ARROW-1345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16362244#comment-16362244
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Antoine Pitrou commented on ARROW-1345:
---------------------------------------

Created https://issues.apache.org/jira/browse/ARROW-2147 for the inference 
issue.

> [Python] Conversion from nested NumPy arrays fails on integers other than 
> int64, float32
> ----------------------------------------------------------------------------------------
>
>                 Key: ARROW-1345
>                 URL: https://issues.apache.org/jira/browse/ARROW-1345
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 0.8.0
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 0.9.0
>
>
> The inferred types are the largest ones, and then later conversion fails on 
> any arrays with smaller types because only exact conversions are implemented 
> thus far



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