Incorrect outputSchema is invoked when overloading UDF in 0.9.1
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Key: PIG-2375
URL: https://issues.apache.org/jira/browse/PIG-2375
Project: Pig
Issue Type: Bug
Affects Versions: 0.9.1
Reporter: Prashant Kommireddi
Fix For: 0.9.1
When overloading a UDF with getArgToFuncMapping() the parent/root UDF
outputSchema() is being called.
@Override
public List<FuncSpec> getArgToFuncMapping() throws FrontendException {
List<FuncSpec> funcList = new ArrayList<FuncSpec>();
Schema s = new Schema();
s.add(new Schema.FieldSchema(null, DataType.TUPLE));
s.add(new Schema.FieldSchema(null, DataType.CHARARRAY));
funcList.add(new FuncSpec(this.getClass().getName(), s));
Schema s1 = new Schema();
s1.add(new Schema.FieldSchema(null, DataType.TUPLE));
s1.add(new Schema.FieldSchema(null, DataType.TUPLE));
funcList.add(new FuncSpec(LogFieldValues.class.getName(), s1));
return funcList;
}
In the above function, "LogFieldValues" is used when the input is (tuple,
tuple) but the outputSchema() is invoked from the root UDF.
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