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Posted to dev@hive.apache.org by "Harish Butani (JIRA)" <ji...@apache.org> on 2014/08/08 19:41:11 UTC

[jira] [Created] (HIVE-7662) CBO: changes to COst Model

Harish Butani created HIVE-7662:
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             Summary: CBO: changes to COst Model
                 Key: HIVE-7662
                 URL: https://issues.apache.org/jira/browse/HIVE-7662
             Project: Hive
          Issue Type: Sub-task
            Reporter: Harish Butani
            Assignee: Harish Butani


- Model Join cost as Sum of Input sizes
- Fix bug with NDV calculations. For now use Optiq's default formulas.
- Model Cummulative cost to favor broad Plans over Deep Plans.



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