HIVE-1965 Auto convert mapjoin should not throw exception if the top
operator is union operator (Yongqiang He via namit)
[Title]
Summary:
Trac Bug: #
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Test Plan:
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Database Impact:
Memcache Impact:
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EImportant:
- begin *PUBLIC* platform impact section -
Bugzilla: #
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hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/lib/DefaultGraphWalker.java