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https://issues.apache.org/jira/browse/PARQUET-213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14353764#comment-14353764
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Alex Levenson commented on PARQUET-213:
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See some discussion in: https://github.com/apache/incubator-parquet-mr/pull/123

> Log the projected schema
> ------------------------
>
>                 Key: PARQUET-213
>                 URL: https://issues.apache.org/jira/browse/PARQUET-213
>             Project: Parquet
>          Issue Type: New Feature
>          Components: parquet-mr
>            Reporter: Alex Levenson
>            Priority: Minor
>
> We should log the schema and describe what columns are being kept and which 
> are being projected out in the projection API.
> This will be useful for users wondering why some of their columns are missing.



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