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https://issues.apache.org/jira/browse/HIVE-1787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12934405#action_12934405
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Namit Jain commented on HIVE-1787:
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+1
running tests.
How much improvement did it lead to in the join queries ?
> optimize the code path when there are no outer joins
> ----------------------------------------------------
>
> Key: HIVE-1787
> URL: https://issues.apache.org/jira/browse/HIVE-1787
> Project: Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Siying Dong
> Attachments: HIVE-1787.1.patch
>
>
> Currently, outer joins and joins are handled in the same manner - a special
> case for no outer joins would be useful
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