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From "Laljo John Pullokkaran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11865) Disable Hive PPD optimizer when CBO has optimized the plan
Date Fri, 18 Dec 2015 23:51:46 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15064999#comment-15064999
] 

Laljo John Pullokkaran commented on HIVE-11865:
-----------------------------------------------

[~jcamachorodriguez] SimplePredicatePushDown seems to be brute force and could be refined.
SimpleFilterPPD shouldn't it check for DPP also. Now it seems like it would process always.

Also SimplePredicatePushDown would re evaluate predicates that might have been evaluated before
and deemed unfit for push down.
This is not ideal.

> Disable Hive PPD optimizer when CBO has optimized the plan
> ----------------------------------------------------------
>
>                 Key: HIVE-11865
>                 URL: https://issues.apache.org/jira/browse/HIVE-11865
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO, Logical Optimizer
>    Affects Versions: 2.0.0
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>         Attachments: HIVE-11865.01.patch, HIVE-11865.02.patch, HIVE-11865.02.patch, HIVE-11865.03.patch,
HIVE-11865.04.patch, HIVE-11865.05.patch, HIVE-11865.06.patch, HIVE-11865.patch
>
>




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