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https://issues.apache.org/jira/browse/IMPALA-891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Greg Rahn updated IMPALA-891:
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Issue Type: New Feature (was: Improvement)
> Add support for INTERSECT and EXCEPT set operations
> ---------------------------------------------------
>
> Key: IMPALA-891
> URL: https://issues.apache.org/jira/browse/IMPALA-891
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend
> Affects Versions: Impala 1.2.4, Impala 2.5.0, Impala 2.6.0, Impala 2.7.0
> Reporter: Jonathan Seidman
> Priority: Critical
> Labels: sql-language, usability
>
> Set functionality includes the below. Today, Impala has just {{UNION}} &
> {{UNION ALL}}.
> {code}
> UNION [DISTINCT]
> UNION ALL
> INTERSECT [DISTINCT]
> INTERSECT ALL
> EXCEPT [DISTINCT]
> EXCEPT ALL
> * MINUS is an alias for EXCEPT
> {code}
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