[jira] [Created] (PIG-4773) [Pig on Tez] Secondary key descending sort in nested foreach after union does ascending instead

["Rohini Palaniswamy (JIRA)" <ji...@apache.org>]

Rohini Palaniswamy created PIG-4773:
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             Summary: [Pig on Tez] Secondary key descending sort in nested foreach after union does ascending instead
                 Key: PIG-4773
                 URL: https://issues.apache.org/jira/browse/PIG-4773
             Project: Pig
          Issue Type: Bug
            Reporter: Rohini Palaniswamy
            Assignee: Rohini Palaniswamy
             Fix For: 0.16.0


  PigSecondaryKeyComparator does not implement a compare(WritableComparable a, WritableComparable b) method. In case of  OrderedGroupedMergedKVInput with vertex groups, object comparison instead of byte comparison is done when merging the multiple inputs into one. Since the compare API is not overridden, WritableComparator compare API is called and  the value types are directly compared which means it is always ascending.



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