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From "Ashutosh Chauhan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4959) Vectorized plan generation should be added as an optimization transform.
Date Tue, 27 Aug 2013 22:49:52 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13751834#comment-13751834
] 

Ashutosh Chauhan commented on HIVE-4959:
----------------------------------------

You are walking the plan tree yourself in the optimizer. Hive already has infra for plan walking.
I am wondering why not reuse that? That will simplify optimizer code.
                
> Vectorized plan generation should be added as an optimization transform.
> ------------------------------------------------------------------------
>
>                 Key: HIVE-4959
>                 URL: https://issues.apache.org/jira/browse/HIVE-4959
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Jitendra Nath Pandey
>            Assignee: Jitendra Nath Pandey
>         Attachments: HIVE-4959.1.patch, HIVE-4959.2.patch
>
>
> Currently the query plan is vectorized at the query run time in the map task. It will
be much cleaner to add vectorization as an optimization step.

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