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

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

Deepak Jaiswal created HIVE-20017:
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             Summary: 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


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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