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https://issues.apache.org/jira/browse/HIVE-2812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Namit Jain updated HIVE-2812:
-----------------------------
Affects Version/s: (was: 0.9.0)
Status: Open (was: Patch Available)
Can you refresh this ? It has been very long since it was visited.
> Hive multi group by single reducer optimization fails when aggregation with
> no keys followed by query with no aggregations
> --------------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-2812
> URL: https://issues.apache.org/jira/browse/HIVE-2812
> Project: Hive
> Issue Type: Bug
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2812.D1821.1.patch
>
>
> In multi insert queries where one subquery involves an aggregation with no
> distinct or group by keys and is followed by a query without any
> aggregations, like the following, Hive will attempt to add a group by
> operator for the query without aggregations, causing semantic analysis to
> fail.
> FROM src
> INSERT OVERWRITE TABLE table1 SELECT count(*)
> INSERT OVERWRITE TABLE table2 SELECT key;
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