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https://issues.apache.org/jira/browse/HIVE-440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12701753#action_12701753
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Zheng Shao commented on HIVE-440:
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Committed to trunk, but it cannot be applied to branch-0.3 cleanly.
Can you generate a patch for branch 0.3, Namit?
> no way to know number of rows for a reducer and join keys
> ---------------------------------------------------------
>
> Key: HIVE-440
> URL: https://issues.apache.org/jira/browse/HIVE-440
> Project: Hadoop Hive
> Issue Type: Wish
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: hive.440.1.patch, hive.440.2.patch
>
>
> It is a good debugging tool to dump number of rows for a reducer, and to emit
> the number of entries for a join key for a internal table
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