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Posted to issues@hive.apache.org by "Zhiyuan Yang (JIRA)" <ji...@apache.org> on 2017/05/05 18:40:04 UTC

[jira] [Assigned] (HIVE-16596) CrossProductCheck failed to detect cross product between two unions

     [ https://issues.apache.org/jira/browse/HIVE-16596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zhiyuan Yang reassigned HIVE-16596:
-----------------------------------


> CrossProductCheck failed to detect cross product between two unions
> -------------------------------------------------------------------
>
>                 Key: HIVE-16596
>                 URL: https://issues.apache.org/jira/browse/HIVE-16596
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Zhiyuan Yang
>            Assignee: Zhiyuan Yang
>
> To reproduce:
> {code}
> create table f (a int, b string);
> set hive.auto.convert.join=false;
> explain select * from (select * from f union all select * from f) a join (select * from f union all select * from f) b;
> {code}
> No cross product warning is given.



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