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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1538) FilterOperator is applied twice with ppd on.
Date Sat, 16 Oct 2010 00:26:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12921603#action_12921603
] 

Namit Jain commented on HIVE-1538:
----------------------------------

Amareshwari, are you planning to work on this ?

We are trying to improve the performance, and some profiling showed that can lead to lot of
improvements

> FilterOperator is applied twice with ppd on.
> --------------------------------------------
>
>                 Key: HIVE-1538
>                 URL: https://issues.apache.org/jira/browse/HIVE-1538
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>
> With hive.optimize.ppd set to true, FilterOperator is applied twice. And it seems second
operator is always filtering zero rows.

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