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https://issues.apache.org/jira/browse/HIVE-12764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15817608#comment-15817608
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Lefty Leverenz commented on HIVE-12764:
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Doc note: This issue and its subtasks need to be documented in the wiki for
release 2.2.0.
* [Select -- ALL and DISTINCT Clauses |
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Select#LanguageManualSelect-ALLandDISTINCTClauses]
Added a TODOC2.2 label.
> Support Intersect (distinct/all) Except (distinct/all) Minus (distinct/all)
> in Hive
> -----------------------------------------------------------------------------------
>
> Key: HIVE-12764
> URL: https://issues.apache.org/jira/browse/HIVE-12764
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 2.1.0
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Labels: TODOC2.2
> Fix For: 2.2.0
>
>
> We plan to address union distinct (already done), intersect (all, distinct)
> and except (all, distinct) by leveraging the power of relational algebra
> through query rewriting.
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