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From "Laukik Chitnis (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1491) Failure planning nested FOREACH with DISTINCT, POLoad cannot be cast to POLocalRearrange
Date Tue, 15 Feb 2011 22:37:57 GMT

    [ https://issues.apache.org/jira/browse/PIG-1491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995036#comment-12995036
] 

Laukik Chitnis commented on PIG-1491:
-------------------------------------

Latest trunk does not throw the exception reported in this jira, and produces result as expected.

> 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
>            Assignee: Laukik Chitnis
>             Fix For: 0.9.0
>
>
> 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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