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Posted to dev@hive.apache.org by "Remus Rusanu (JIRA)" <ji...@apache.org> on 2014/03/08 14:24:42 UTC

[jira] [Created] (HIVE-6594) UnsignedInt128 addition does not increase internal int array count resulting in corrupted values during serialization

Remus Rusanu created HIVE-6594:
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             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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