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https://issues.apache.org/jira/browse/PIG-522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pradeep Kamath updated PIG-522:
-------------------------------

    Attachment: PIG-522.patch

> Problem in using negative (-a)
> ------------------------------
>
>                 Key: PIG-522
>                 URL: https://issues.apache.org/jira/browse/PIG-522
>             Project: Pig
>          Issue Type: Bug
>    Affects Versions: types_branch
>            Reporter: Santhosh Srinivasan
>            Assignee: Pradeep Kamath
>             Fix For: types_branch
>
>         Attachments: PIG-522.patch
>
>
> Using negative, i.e., -a leads to exceptions. 
> {code}
> grunt> a = load 'myfile' as  (name:chararray, age:int, gpa:double);
> grunt> b = foreach a generate -gpa;
> grunt> dump b;
> 2008-11-10 16:38:12,517 [main] INFO  
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
>  - 0% complete
> 2008-11-10 16:38:37,539 [main] ERROR 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
>  - Map reduce job failed
> 2008-11-10 16:38:37,540 [main] ERROR 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
>  - Job failed!
> 2008-11-10 16:38:37,542 [main] ERROR 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.Launcher - Error 
> message from task (map) task_200809241441_19426_m_000000java.io.IOException: 
> Received Error while processing the map plan.
>         at 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:197)
>         at 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:158)
>         at 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapOnly$Map.map(PigMapOnly.java:65)
>         at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:47)
>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:227)
>         at 
> org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)
> {code}

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