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https://issues.apache.org/jira/browse/PIG-4596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liyunzhang_intel updated PIG-4596:
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Attachment: PIG-4596.patch
[~mohitsabharwal]:
in PIG-4596.patch,changes are:
1.change the key type in MergeJoinConverter.java from "Object" to "IndexedKey"
to avoid considering the null value from table a and table b same when table a
and table b are mergeJoined.
> 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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