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https://issues.apache.org/jira/browse/PIG-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liyunzhang_intel updated PIG-4421:
----------------------------------
Attachment: PIG-4421_3.patch
[~mohitsabharwal]:
I have submitted PIG-4421_3.patch and add comments about
SparkCompiler#visitSkewedJoin
{code}
/**
* currently use regular join to replace skewedJoin
* Skewed join currently works with two-table inner join.
* More info about pig SkewedJoin, See
https://wiki.apache.org/pig/PigSkewedJoinSpec
* @param op
* @throws VisitorException
*/
@Override
public void visitSkewedJoin(POSkewedJoin op) throws VisitorException {
{code}
> 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
>
>
> 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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