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https://issues.apache.org/jira/browse/HIVE-29724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18101268#comment-18101268
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Stamatis Zampetakis commented on HIVE-29724:
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A separate tool apart may be hard to maintain and integrate in existing
workflows. Another option would be to have a maintenance thread running at
specific intervals.
> Provide a Metastore tool for de-duplicating the columns
> -------------------------------------------------------
>
> Key: HIVE-29724
> URL: https://issues.apache.org/jira/browse/HIVE-29724
> Project: Hive
> Issue Type: Improvement
> Reporter: Zhihua Deng
> Priority: Major
>
> Following the discussion on HIVE-29694, we can provide a tool to de-duplicate
> the columns to avoid column metadata bloat, which could happen during
> replication.
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