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https://issues.apache.org/jira/browse/PARQUET-1425?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16628976#comment-16628976
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Wes McKinney commented on PARQUET-1425:
---------------------------------------

I see, it's not a big deal. Perhaps there is a CLI option to suppress such 
warnings

> [Format] Fix Thrift compiler warning
> ------------------------------------
>
>                 Key: PARQUET-1425
>                 URL: https://issues.apache.org/jira/browse/PARQUET-1425
>             Project: Parquet
>          Issue Type: Bug
>          Components: parquet-format
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: format-2.6.0
>
>
> I see this warning frequently
> {code}
> [1/127] Running thrift compiler on parquet.thrift
> [WARNING:/home/wesm/code/arrow/cpp/src/parquet/parquet.thrift:295] The "byte" 
> type is a compatibility alias for "i8". Use "i8" to emphasize the signedness 
> of this type.
> {code}



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