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https://issues.apache.org/jira/browse/PARQUET-1791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17044297#comment-17044297
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ASF GitHub Bot commented on PARQUET-1791:
-----------------------------------------
gszadovszky commented on pull request #755: PARQUET-1791: Add 'prune' command
to parquet-tools
URL: https://github.com/apache/parquet-mr/pull/755
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> Add 'prune' command to parquet-tools
> -------------------------------------
>
> Key: PARQUET-1791
> URL: https://issues.apache.org/jira/browse/PARQUET-1791
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Affects Versions: 1.11.0
> Reporter: Xinli Shang
> Assignee: Xinli Shang
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
>
> During data retention, there is a need to remove unused or personal columns.
> Adding a 'prune' command in Parquet-tool to remove columns and retain all
> other columns unchanged. The way it works should be like 'merge' command in
> Parquet-tools, for example moving the column chunks as a whole.
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