[jira] [Commented] (ARROW-2074) [Python] Allow type inference for struct arrays

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-2074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16448280#comment-16448280 ] 

ASF GitHub Bot commented on ARROW-2074:
---------------------------------------

pitrou opened a new pull request #1935: ARROW-2074: [Python] Infer lists of dicts as struct arrays
URL: https://github.com/apache/arrow/pull/1935
 
 
   Also refactor the type inference visitor and remove the superfluous separate SeqVisitor.

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> [Python] Allow type inference for struct arrays
> -----------------------------------------------
>
>                 Key: ARROW-2074
>                 URL: https://issues.apache.org/jira/browse/ARROW-2074
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Minor
>              Labels: pull-request-available
>
> Support inferring a struct type in a {{pa.array}} call, if a sequence of dicts (or dict of sequences?= is given. Of course, this could mean that the wrong field order may be inferred, though on Python 3.6+ dicts retain ordering until the first deletion.



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