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