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From "Remus Rusanu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-6594) UnsignedInt128 addition does not increase internal int array count resulting in corrupted values during serialization
Date Sat, 08 Mar 2014 13:24:42 GMT
Remus Rusanu created HIVE-6594:
----------------------------------

             Summary: UnsignedInt128 addition does not increase internal int array count resulting
in corrupted values during serialization
                 Key: HIVE-6594
                 URL: https://issues.apache.org/jira/browse/HIVE-6594
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
    Affects Versions: 0.13.0
            Reporter: Remus Rusanu
            Assignee: Remus Rusanu


Discovered this while investigating why my fix for HIVE-6222 produced diffs. I discovered
that Decimal128.addDestructive does not adjust the internal count when an the number of relevant
ints increases. Since this count i use din the fast HiveDecimal conversion code, the results
are off. 

The root cause is UnsignedDecimal128.differenceInternal does not do an updateCount() on the
result.



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