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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