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