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https://issues.apache.org/jira/browse/HIVE-10413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14505462#comment-14505462
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Laljo John Pullokkaran commented on HIVE-10413:
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[~ashutoshc] We need to handle:
1. We need to to maintain gbInfo.distExprNodes/distExprNames/distExprTypes
2. In genMapSideRS we add all of gbInfo.distExprNodes to reduce keys. This is
wrong if distinct key is already part of GB Key.
> [CBO] Return path assumes distinct column cant be same as grouping column
> -------------------------------------------------------------------------
>
> Key: HIVE-10413
> URL: https://issues.apache.org/jira/browse/HIVE-10413
> Project: Hive
> Issue Type: Bug
> Affects Versions: 1.2.0
> Reporter: Ashutosh Chauhan
> Assignee: Ashutosh Chauhan
> Attachments: HIVE-10413.patch
>
>
> Found in cbo_udf_udaf.q tests.
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