[PIG-4595] Fix unit test failures about TestFRJoinNullValue in spark mode

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: spark-branch
• Component/s: spark
• Assignee: liyunzhang
• Reporter: liyunzhang
• Created: 09/Jun/15 12:17
• Updated: 21/Jun/17 09:18
• Resolved: 12/Jun/15 01:58

Description

based on f9a50f3, using following command to test TestFRJoinNullValue：
ant -Dtestcase=TestFRJoinNullValue -Dexectype=spark -Dhadoopversion=23 test

following ut fail:
• org.apache.pig.test.TestFRJoinNullValue.testTupleLeftNullMatch
• org.apache.pig.test.TestFRJoinNullValue.testLeftNullMatch
• org.apache.pig.test.TestFRJoinNullValue.testTupleNullMatch
• org.apache.pig.test.TestFRJoinNullValue.testNullMatch

The reason why these unit test fail is because null value from table a and table b are considered same when table a fr join table b.

Issue Links

• links to: review board