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https://issues.apache.org/jira/browse/HIVE-13637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265960#comment-15265960
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Ashutosh Chauhan commented on HIVE-13637:
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+1
> Fold CASE into NVL when CBO optimized the plan
> ----------------------------------------------
>
> Key: HIVE-13637
> URL: https://issues.apache.org/jira/browse/HIVE-13637
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Affects Versions: 2.1.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-13637.patch, HIVE-13637.patch
>
>
> After HIVE-13068 goes in, folding CASE into NVL got disabled when CBO has
> optimized the plan, as it was done by ConstantPropagate in Hive. We need to
> enable it back.
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