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Posted to dev@hive.apache.org by "Gunther Hagleitner (JIRA)" <ji...@apache.org> on 2014/08/08 23:47:12 UTC
[jira] [Resolved] (HIVE-7662) CBO: changes to Cost Model
[ https://issues.apache.org/jira/browse/HIVE-7662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gunther Hagleitner resolved HIVE-7662.
--------------------------------------
Resolution: Fixed
Committed to branch. Thanks [~rhbutani]!
> 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
> Attachments: HIVE-7662.1.patch
>
>
> - 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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