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Posted to dev@hive.apache.org by "Jason Dere (JIRA)" <ji...@apache.org> on 2017/03/09 11:29:37 UTC

[jira] [Created] (HIVE-16154) Determine when dynamic runtime filtering should be disabled

Jason Dere created HIVE-16154:
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             Summary: Determine when dynamic runtime filtering should be disabled
                 Key: HIVE-16154
                 URL: https://issues.apache.org/jira/browse/HIVE-16154
             Project: Hive
          Issue Type: Bug
          Components: Query Planning
            Reporter: Jason Dere
            Assignee: Jason Dere


Currently dynamic min/max/bloom optimization is always enabled. However there are times where it may not be beneficial, such as if the semijoin has a PK-FK relation and there are no filters on the semijoin table. Try to devise a way to do a cost/benefit calculation to see if there is enough benefit to adding the runtime filter.



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