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Posted to issues@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2017/06/02 01:15:04 UTC

[jira] [Updated] (HIVE-16653) Mergejoin should give itself a correct tag

     [ https://issues.apache.org/jira/browse/HIVE-16653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pengcheng Xiong updated HIVE-16653:
-----------------------------------
    Attachment: HIVE-16653.02.patch

> 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, HIVE-16653.02.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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