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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2014/12/17 02:23:13 UTC

[jira] [Updated] (HIVE-9137) Turn off Hive's PredicateTransitivePropagate optimizer when cbo is on

     [ https://issues.apache.org/jira/browse/HIVE-9137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ashutosh Chauhan updated HIVE-9137:
-----------------------------------
    Status: Patch Available  (was: Open)

> Turn off Hive's PredicateTransitivePropagate optimizer when cbo is on
> ---------------------------------------------------------------------
>
>                 Key: HIVE-9137
>                 URL: https://issues.apache.org/jira/browse/HIVE-9137
>             Project: Hive
>          Issue Type: Task
>          Components: CBO, Logical Optimizer
>    Affects Versions: 0.15.0
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-9137.patch
>
>
> Because Calcite contains rule called {{JoinPushTransitivePredicatesRule}} which does exactly this. So, if cbo is on, this optimization would have already taken place and we won't gain anything by running this again.



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