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https://issues.apache.org/jira/browse/HIVE-300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676432#action_12676432
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Prasad Chakka commented on HIVE-300:
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+1
> DISTRIBUTE BY should support expressions
> ----------------------------------------
>
> Key: HIVE-300
> URL: https://issues.apache.org/jira/browse/HIVE-300
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Query Processor
> Affects Versions: 0.2.0, 0.3.0
> Reporter: Zheng Shao
> Attachments: HIVE-300.1.patch
>
>
> We should support this kind of query. Distribute By only generates the
> hash-code, so it's easy to allow expressions (while it will be hard for Sort
> By and Cluster By).
> {code}
> SELECT a.key, a.value FROM a
> DISTRIBUTE BY rand()
> {code}
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