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Posted to issues-all@impala.apache.org by "Taras Bobrovytsky (JIRA)" <ji...@apache.org> on 2018/07/14 00:48:00 UTC

[jira] [Assigned] (IMPALA-891) Add support for intersect and except set operations

     [ https://issues.apache.org/jira/browse/IMPALA-891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Taras Bobrovytsky reassigned IMPALA-891:
----------------------------------------

    Assignee:     (was: Taras Bobrovytsky)

> Add support for intersect and except set operations
> ---------------------------------------------------
>
>                 Key: IMPALA-891
>                 URL: https://issues.apache.org/jira/browse/IMPALA-891
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 1.2.4, Impala 2.5.0, Impala 2.6.0, Impala 2.7.0
>            Reporter: Jonathan Seidman
>            Priority: Major
>              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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