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https://issues.apache.org/jira/browse/HIVE-16653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pengcheng Xiong updated HIVE-16653:
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Description: In a non-self-join mergejoin, e.g., we join tab_a and tab_b,
it will give different branches different tags. However in a self-join
mergejoin, both of the branches comes from the same table scan, we need to give
it a correct tag.
> Mergejoin should give itself a correct tag
> ------------------------------------------
>
> Key: HIVE-16653
> URL: https://issues.apache.org/jira/browse/HIVE-16653
> Project: Hive
> Issue Type: Sub-task
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-16653.01.patch
>
>
> In a non-self-join mergejoin, e.g., we join tab_a and tab_b, it will give
> different branches different tags. However in a self-join mergejoin, both of
> the branches comes from the same table scan, we need to give it a correct tag.
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