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https://issues.apache.org/jira/browse/HIVE-13638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265286#comment-15265286
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Jesus Camacho Rodriguez commented on HIVE-13638:
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Btw, the code in {{HiveReduceExpressionsRule}} is brought from latest Calcite
version; I will make sure when we get rid of it when we upgrade. Further, I
plan to include the new rule in Calcite.
> CBO rule to pull up constants through Sort/Limit
> ------------------------------------------------
>
> Key: HIVE-13638
> URL: https://issues.apache.org/jira/browse/HIVE-13638
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Affects Versions: 2.1.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Attachments: HIVE-13638.patch
>
>
> After HIVE-13068 goes in, we need to pull up constants through Sort/Limit
> operator, as it was done previously by ConstantPropagate in Hive.
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