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From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1695) MapJoin followed by ReduceSink should be done as single MapReduce Job
Date Thu, 02 Dec 2010 18:42:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1695?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12966227#action_12966227
] 

He Yongqiang commented on HIVE-1695:
------------------------------------

The approach sounds good. (Or you can keep MapJoin%Sel and do sth inside it.)

> MapJoin followed by ReduceSink should be done as single MapReduce Job
> ---------------------------------------------------------------------
>
>                 Key: HIVE-1695
>                 URL: https://issues.apache.org/jira/browse/HIVE-1695
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Amareshwari Sriramadasu
>
> Currently MapJoin followed by ReduceSink runs as two MapReduce jobs : One map only job
followed by a Map-Reduce job. It can be combined into single MapReduce Job.

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