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https://issues.apache.org/jira/browse/HIVE-168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12656212#action_12656212
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Ashish Thusoo commented on HIVE-168:
------------------------------------
+1
looks good.
> join on a subquery with a group by does not work
> ------------------------------------------------
>
> Key: HIVE-168
> URL: https://issues.apache.org/jira/browse/HIVE-168
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: 168.patch, patch2, patch3
>
>
> SELECT a.key, a.value, b.key, b.value
> FROM
> (
> SELECT src1.key as key, count(src1.value) AS value FROM src src1 group by
> src1.key
> ) a
> FULL OUTER JOIN
> (
> SELECT src2.key as key, count(distinct(src2.value)) AS value
> FROM src1 src2 group by src2.key
> ) b
> ON (a.key = b.key);
> does not generate the plan correctly
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