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https://issues.apache.org/jira/browse/HIVE-8228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14144148#comment-14144148
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Ashutosh Chauhan commented on HIVE-8228:
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+1
> CBO: fix couple of issues with partition pruning
> ------------------------------------------------
>
> Key: HIVE-8228
> URL: https://issues.apache.org/jira/browse/HIVE-8228
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Harish Butani
> Assignee: Harish Butani
> Attachments: HIVE-8228.1.patch
>
>
> - Pruner doesn't handle non-deterministic UDFs correctly
> - Plan genned after CBO has a Project between TScan and Filter; which
> prevents PartPruning from triggering in hive post CBO.
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