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https://issues.apache.org/jira/browse/HIVE-1276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12851682#action_12851682
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Namit Jain commented on HIVE-1276:
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You need to check for limit also.
Look at input14_limit.q - this needs another map-reduce job
> optimize bucketing
> -------------------
>
> Key: HIVE-1276
> URL: https://issues.apache.org/jira/browse/HIVE-1276
> Project: Hadoop Hive
> Issue Type: Improvement
> Reporter: Namit Jain
> Assignee: He Yongqiang
> Attachments: hive-1276.1.patch, hive-1276.2.patch, hive-1276.3.patch
>
>
> If the query results are already clustered by the bucketing column, there is
> no need for another map-reduce job.
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