Code discovering UDFs in the script has a bug in a order by case
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Key: PIG-1534
URL: https://issues.apache.org/jira/browse/PIG-1534
Project: Pig
Issue Type: Bug
Affects Versions: 0.7.0
Reporter: Pradeep Kamath
Fix For: 0.8.0
Consider the following commandline:
{noformat}
java -cp /tmp/svncheckout/pig.jar:udf.jar:clusterdir org.apache.pig.Main -e "a
= load 'studenttab' using udf.MyPigStorage(); b = order a by $0; dump b;"
{noformat}
Notice there is no "register udf.jar", instead udf.jar (which contains
udf.MyPigStorage) is in the classpath. Pig handles this case by shipping
udf.jar to the backend. However the above script with order by triggers the bug
with the following error message:
ERROR 2997: Unable to recreate exception from backed error:
java.lang.RuntimeException: could not instantiate
'org.apache.pig.impl.builtin.RandomSampleLoader' with arguments
'[udf.MyPigStorage, 100]'
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