[jira] [Commented] (ARROW-13835) [Python] Add utility to unify schemas

["Alessandro Molina (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-13835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17408184#comment-17408184 ] 

Alessandro Molina commented on ARROW-13835:
-------------------------------------------

It seems we do have the function in Python

{code}
>>> pa.unify_schemas
<built-in function unify_schemas>
{code}

but it's not documented

> [Python] Add utility to unify schemas
> -------------------------------------
>
>                 Key: ARROW-13835
>                 URL: https://issues.apache.org/jira/browse/ARROW-13835
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>    Affects Versions: 5.0.0
>            Reporter: Alessandro Molina
>            Assignee: Alessandro Molina
>            Priority: Major
>
> In R we have the {{unify_schemas}} utility which allows to merge two or more schemas, in Python such feature would be helpful but we don't seem to provide it. 
> Such feature already exists in C++  ( https://github.com/apache/arrow/blob/27affa3181708c4f800f9d0a70603fb3390d6462/cpp/src/arrow/type.cc#L1722-L1744 ) and should be exposed in PyArrow and documented under https://arrow.apache.org/docs/python/api/datatypes.html



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