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https://issues.apache.org/jira/browse/ARROW-1674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16208320#comment-16208320
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ASF GitHub Bot commented on ARROW-1674:
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Github user pcmoritz commented on the issue:

    https://github.com/apache/arrow/pull/1201
  
    @wesm How do you feel about leaving this unresolved for now and I can 
implement a custom serializer for pyarrow.serialize that will take care of it? 
This won't fix Tensor.from_numpy and also doesn't help with Feather but it will 
resolve https://github.com/ray-project/ray/issues/1121


> [Format] Add bit width metadata to Bool logical type
> ----------------------------------------------------
>
>                 Key: ARROW-1674
>                 URL: https://issues.apache.org/jira/browse/ARROW-1674
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Format
>            Reporter: Wes McKinney
>              Labels: pull-request-available
>
> Some libraries represent boolean data as a single byte per value as a vector 
> of int8/uint8 1's and 0's. It would be useful to be able to retain this 
> metadata as an optional field on the {{Bool}} table in {{Schema.fbs}}



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