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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-3647) map-side groupby wrongly due to HIVE-3432
Date Thu, 01 Nov 2012 05:05:12 GMT
Namit Jain created HIVE-3647:
--------------------------------

             Summary: map-side groupby wrongly due to HIVE-3432
                 Key: HIVE-3647
                 URL: https://issues.apache.org/jira/browse/HIVE-3647
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
            Reporter: Namit Jain
            Assignee: Namit Jain


There seems to be a bug due to HIVE-3432.

We are converting the group by to a map side group by after only looking at
sorting columns. This can give wrong results if the data is sorted and
bucketed by different columns.

Add some tests for that scenario, verify and fix any issues.

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