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Posted to issues@hive.apache.org by "Deepak Jaiswal (JIRA)" <ji...@apache.org> on 2018/06/27 17:37:00 UTC

[jira] [Assigned] (HIVE-20017) Logic to disable SMB/BMJ on external tables is too strict

     [ https://issues.apache.org/jira/browse/HIVE-20017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Deepak Jaiswal reassigned HIVE-20017:
-------------------------------------


> Logic to disable SMB/BMJ on external tables is too strict
> ---------------------------------------------------------
>
>                 Key: HIVE-20017
>                 URL: https://issues.apache.org/jira/browse/HIVE-20017
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Deepak Jaiswal
>            Assignee: Deepak Jaiswal
>            Priority: Major
>
> The logic to disable SMB and BMJ on external tables is too strict as done in JIRA,
> https://issues.apache.org/jira/browse/HIVE-19336
>  
> For SMB, if there is a group by, then the source table becomes irrelevant as the rows are bucketed and sorted by group by keys.
> For BMJ, the small table(s) can be external, the check needs to be done only for big table.
>  



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