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https://issues.apache.org/jira/browse/PIG-1491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12886906#action_12886906
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Ashutosh Chauhan commented on PIG-1491:
---------------------------------------
Scott,
It will be useful if you can also paste the Pig script which produced this
exception.
> Failure planning nested FOREACH with DISTINCT, POLoad cannot be cast to
> POLocalRearrange
> ----------------------------------------------------------------------------------------
>
> Key: PIG-1491
> URL: https://issues.apache.org/jira/browse/PIG-1491
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Scott Carey
>
> I have a failure that occurs during planning while using DISTINCT in a nested
> FOREACH.
> Caused by: java.lang.ClassCastException:
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLoad
> cannot be cast to
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLocalRearrange
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.SecondaryKeyOptimizer.visitMROp(SecondaryKeyOptimizer.java:352)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:218)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceOper.visit(MapReduceOper.java:40)
> at
> org.apache.pig.impl.plan.DepthFirstWalker.depthFirst(DepthFirstWalker.java:67)
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