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https://issues.apache.org/jira/browse/HIVE-15118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15735657#comment-15735657
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Naveen Gangam commented on HIVE-15118:
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[~aihuaxu] The main schema file changes looks good but it will not work for
upgrade scenarios. When you upgrade from hive 2.1, this table will still exist.
Can you also add changes for upgrade scenario? Thanks
> Remove unused 'COLUMNS' table from derby schema
> -----------------------------------------------
>
> Key: HIVE-15118
> URL: https://issues.apache.org/jira/browse/HIVE-15118
> Project: Hive
> Issue Type: Sub-task
> Components: Database/Schema
> Affects Versions: 2.2.0
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Priority: Minor
> Attachments: HIVE-15118.1.patch
>
>
> COLUMNS table is unused any more. Other databases already removed it. Remove
> from derby as well.
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