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From "Olga Natkovich (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-525) UDF that requires a cast for its input arguments causes an exception
Date Thu, 13 Nov 2008 00:59:44 GMT
UDF that requires a cast for its input arguments causes an exception
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                 Key: PIG-525
                 URL: https://issues.apache.org/jira/browse/PIG-525
             Project: Pig
          Issue Type: Bug
            Reporter: Olga Natkovich


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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