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https://issues.apache.org/jira/browse/HIVE-21014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16711299#comment-16711299
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Zoltan Haindrich commented on HIVE-21014:
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I think that the reusal should be considered for every operator; not just for
projections.
> Improve vectorization column reuse
> ----------------------------------
>
> Key: HIVE-21014
> URL: https://issues.apache.org/jira/browse/HIVE-21014
> Project: Hive
> Issue Type: Improvement
> Components: Vectorization
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
>
> HIVE-20985 have fixed a correctness issue - which have degraded the column
> reuse rate.
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