[jira] Created: (HIVE-1213) sort-merge join does not work for sub-queries

[Namit Jain (JIRA)]

sort-merge join does not work for sub-queries
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                 Key: HIVE-1213
                 URL: https://issues.apache.org/jira/browse/HIVE-1213
             Project: Hadoop Hive
          Issue Type: Bug
          Components: Query Processor
            Reporter: Namit Jain
            Assignee: He Yongqiang
             Fix For: 0.6.0


A query like:

select count(1) from (select /*+ MAPJOIN(x) */ from x join y ON ... ) subq;

does not work - since there is no mapping between the join operator and the 
corresponding source

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