It uses both. They are not contradictory.
________________________________ From: Ahmed Eldawy <[email protected]> To: [email protected] Sent: Tuesday, June 4, 2013 11:31 AM Subject: A UDF that is both Algebraic and Accumulator In the Apache Pig documentation, it is mentioned that we can define a UDF as both Algebraic and Accumulator http://pig.apache.org/docs/r0.11.1/udf.html#accumulator-interface If I do such a thing, how Pig decides which interface of them to use. I assume they are completely separate and they cannot be mixed with each other. Is there a way to enforce Pig to prefer one of them over the other? Best regards, Ahmed Eldawy
