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https://issues.apache.org/jira/browse/PIG-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14529625#comment-14529625
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liyunzhang_intel commented on PIG-4421:
---------------------------------------
all unit tests about SkewedJoin except
TestSkewedJoin.testSkewedJoinKeyPartition fails in PIG-4421_6.patch.Because
currently we use regular join to replace skewedjoin. so we can not fix all the
unit test failures about skewedJoin. In PIG-4421_6.patch, i disabled
TestSkewedJoin.testSkewedJoinKeyPartition by setting @Ignore and wrote a
comment to explain it.
> implement visitSkewedJoin in SparkCompiler
> ------------------------------------------
>
> Key: PIG-4421
> URL: https://issues.apache.org/jira/browse/PIG-4421
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Reporter: liyunzhang_intel
> Assignee: liyunzhang_intel
> Fix For: spark-branch
>
> Attachments: PIG-4421.patch, PIG-4421_2.patch, PIG-4421_3.patch,
> PIG-4421_4.patch, PIG-4421_5.patch, PIG-4421_6.patch
>
>
> If visitSkewedJoin is not implemented, following unittests will fail.
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinWithGroup
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinMapKey
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinManyReducers
> org.apache.pig.test.TestSkewedJoin.testNonExistingInputPathInSkewJoin
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinOneValue
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinWithNoProperties
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinEmptyInput
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinNullKeys
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinOuter
> org.apache.pig.test.TestSkewedJoin.testRecursiveFileListing
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinReducers
> org.apache.pig.test.TestJoinSmoke.testSkewedJoinWithGroup
> org.apache.pig.test.TestJoinSmoke.testSkewedJoinOuter
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