[Hive] rand() should be ignored by input pruning
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                 Key: HIVE-325
                 URL: https://issues.apache.org/jira/browse/HIVE-325
             Project: Hadoop Hive
          Issue Type: Bug
          Components: Query Processor
            Reporter: Namit Jain


select * from T where rand() < 0.5

may return 0 rows because all partitions may simply be eliminated by partition 
pruning if rand() < 0.5 happens to be false

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