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https://issues.apache.org/jira/browse/PIG-4490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rohini Palaniswamy updated PIG-4490:
------------------------------------
    Attachment: PIG-4490-1.patch

Thanks [[email protected]]. The new tests are good.

Did some additional changes on [[email protected]]'s patch when I saw the 
duplication of code with asserts. So
     - Extracted out the repeated asserts in the multiple min and max tests 
into a method. 
   - Also added some javadoc to make the new Util method more clear. It is a 
good one could really be useful when writing future tests. 

[~daijy], can you review the changes.

> MIN/MAX builtin UDFs return wrong results when accumulating for strings
> -----------------------------------------------------------------------
>
>                 Key: PIG-4490
>                 URL: https://issues.apache.org/jira/browse/PIG-4490
>             Project: Pig
>          Issue Type: Bug
>          Components: internal-udfs
>    Affects Versions: 0.12.0, 0.13.0, 0.14.0
>            Reporter: xplenty
>            Assignee: xplenty
>             Fix For: 0.15.0
>
>         Attachments: PIG-4490-1.patch, fix-min-max-test.patch, 
> fix-min-max.patch
>
>
> When using MIN/MAX UDFs with strings in a job that uses the accumulator 
> interface the results are wrong - The UDF won't return the correct MIN/MAX 
> value.
> this is caused by a reverse 'GreaterThan/SmallerThan" (<>) sign in the 
> accumulate() function of both StringMin/StringMax UDFs.



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