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From "John Sichi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-1538) FilterOperator is applied twice with ppd on.
Date Wed, 13 Jul 2011 06:37:59 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13064384#comment-13064384
] 

John Sichi commented on HIVE-1538:
----------------------------------

Since Yongqiang already reviewed this one, I can commit it assuming there were no new functional
changes after his last review.

One question though; I see a bunch of the new SELECT statements in the unit tests do not have
ORDER BY.  Are those all guaranteed to return at most one row?  If not, they need to have
an ORDER BY on a complete key to guarantee test determinism.


> FilterOperator is applied twice with ppd on.
> --------------------------------------------
>
>                 Key: HIVE-1538
>                 URL: https://issues.apache.org/jira/browse/HIVE-1538
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Amareshwari Sriramadasu
>         Attachments: patch-1538-1.txt, patch-1538-2.txt, patch-1538-3.txt, patch-1538-4.txt,
patch-1538.txt
>
>
> 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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