[ https://issues.apache.org/jira/browse/PIG-525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12647153#action_12647153 ]
Alan Gates commented on PIG-525:
--------------------------------
+1
> UDF that requires a cast for its input arguments causes an exception
> --------------------------------------------------------------------
>
> Key: PIG-525
> URL: https://issues.apache.org/jira/browse/PIG-525
> Project: Pig
> Issue Type: Bug
> Reporter: Olga Natkovich
> Assignee: Olga Natkovich
> Attachments: PIG-525.patch
>
>
> Script:
> register /homes/olgan/piggybank.jar
> A = load 'studenttab10k' as (name, age, gpa);
> B = filter A by name is not null;
> C = foreach A generate org.apache.pig.piggybank.evaluation.string.UPPER(name);
> D = limit C 10;
> dump D;
> Stack:
> (reduce) task_200809241441_20466_r_000000java.io.IOException: Received a bytearray from the UDF. Cannot determine how to convert the bytearray to string.
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Reduce.processOnePackageOutput(PigMapReduce.java:266)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Reduce.reduce(PigMapReduce.java:224)
> at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Reduce.reduce(PigMapReduce.java:136)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:318)
> at org.apache.hadoop.mapred.TaskTracker$Child.main(TaskTracker.java:2207)
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