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https://issues.apache.org/jira/browse/HIVE-9009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pengcheng Xiong reassigned HIVE-9009:
-------------------------------------
Assignee: Pengcheng Xiong
> order by (limit) meaning for the last subquery of union in Hive is different
> from other main stream RDBMS
> ---------------------------------------------------------------------------------------------------------
>
> Key: HIVE-9009
> URL: https://issues.apache.org/jira/browse/HIVE-9009
> Project: Hive
> Issue Type: Sub-task
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-9002-WIP.patch
>
>
> Currently Hive will treat
> select id from A
> union all
> select id from B
> order by id
> as
> select id from A
> union all
> (select id from B
> order by id)
> However, it should be treated as
> (select id from A
> union all
> select id from B)
> order by id
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