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Posted to dev@hive.apache.org by "Deepak Jaiswal (JIRA)" <ji...@apache.org> on 2017/03/20 21:02:41 UTC

[jira] [Created] (HIVE-16260) Remove parallel edges of semijoin with map joins.

Deepak Jaiswal created HIVE-16260:
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             Summary: Remove parallel edges of semijoin with map joins.
                 Key: HIVE-16260
                 URL: https://issues.apache.org/jira/browse/HIVE-16260
             Project: Hive
          Issue Type: Task
            Reporter: Deepak Jaiswal
            Assignee: Deepak Jaiswal


Remove parallel edges of semijoin with map joins as they don't give any benefit to the query.
Also, ensure that bloom filters are created to handle at least 1M entries and the semijoin is disabled if the big table has less than 1M rows.
Both these features are configurable.



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