It is restricted to the pig types, yes. You could serializize it to a DataByteArray and manually manage that, or you could just convert it to a databag, or you could make it a hashmap with null values, or a tuple... but yeah.
2012/3/12 Yang <[email protected]> > I tried to return a Set<String> from my UDF, but it seems to give some > problems. > > what are the allowed return data types in UDF? > > is it constrained to those in the "Pig Types" section in > http://wiki.apache.org/pig/UDFManual ? > > thanks > Yang >
