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https://issues.apache.org/jira/browse/ARROW-9943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17208108#comment-17208108
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Micah Kornfield commented on ARROW-9943:
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Please go ahead and pick this up.  I think getting it into 2.0 will be good 
because it enables things like reading LargeList/FixedSizeList as nested 
elements.

> [C++] Arrow metadata not applied recursively when reading Parquet file
> ----------------------------------------------------------------------
>
>                 Key: ARROW-9943
>                 URL: https://issues.apache.org/jira/browse/ARROW-9943
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++
>    Affects Versions: 1.0.0
>            Reporter: Antoine Pitrou
>            Assignee: Micah Kornfield
>            Priority: Major
>
> Currently, {{ApplyOriginalMetadata}} in {{src/parquet/arrow/schema.cc}} is 
> only applied for the top-level node of each schema field. Nested metadata 
> (such as dicts-inside-lists, etc.) will not be applied.



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