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https://issues.apache.org/jira/browse/HIVE-19009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16432182#comment-16432182
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Zoltan Haindrich commented on HIVE-19009:
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sure, seems like I've forgot to add the link to the reviewboard earlier:
https://reviews.apache.org/r/66402/
* reoptimization also works if the query is vectorized
* collection rules were too strict; there are cases when in the same query the
same subtree is calculated multiple times
* added session level storage
> Retain and use runtime statistics thru out a session
> ----------------------------------------------------
>
> Key: HIVE-19009
> URL: https://issues.apache.org/jira/browse/HIVE-19009
> Project: Hive
> Issue Type: Sub-task
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Attachments: HIVE-19009.01.patch, HIVE-19009.02.patch
>
>
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