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From "binlijin (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-2466) mapjoin_subquery dump two small table to the same file
Date Fri, 23 Sep 2011 16:40:26 GMT
mapjoin_subquery  dump two small table to the same file
-------------------------------------------------------

                 Key: HIVE-2466
                 URL: https://issues.apache.org/jira/browse/HIVE-2466
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.7.1
            Reporter: binlijin
            Priority: Critical
             Fix For: 0.8.0


in mapjoin_subquery.q  there is a query´╝Ü
SELECT /*+ MAPJOIN(z) */ subq.key1, z.value
FROM
(SELECT /*+ MAPJOIN(x) */ x.key as key1, x.value as value1, y.key as key2, y.value as value2

 FROM src1 x JOIN src y ON (x.key = y.key)) subq
 JOIN srcpart z ON (subq.key1 = z.key and z.ds='2008-04-08' and z.hr=11);
when dump x and z to a local file,there all dump to the same file, so we lost the data of
x


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