[jira] [Resolved] (PIG-4596) Fix unit test failures about MergeJoinConverter in spark mode

["Xuefu Zhang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-4596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xuefu Zhang resolved PIG-4596.
------------------------------
    Resolution: Fixed

Committed to Spark branch. Thanks, Liyun.

> Fix unit test failures about MergeJoinConverter in spark mode
> -------------------------------------------------------------
>
>                 Key: PIG-4596
>                 URL: https://issues.apache.org/jira/browse/PIG-4596
>             Project: Pig
>          Issue Type: Sub-task
>          Components: spark
>            Reporter: liyunzhang_intel
>            Assignee: liyunzhang_intel
>             Fix For: spark-branch
>
>         Attachments: PIG-4596.patch
>
>
> using following command to test TestMergeJoin
> ant -Dtestcase=TestMergeJoin -Dexectype=spark  -Dhadoopversion=23  test
>  
> Following unit test fails:
> org.apache.pig.test.TestMergeJoin.testMergeJoinWithNulls
> The reason why these unit test fail is because null value from table a and table b are considered same when table a merge join table b.



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