thanks! On Mon, Mar 12, 2012 at 11:36 AM, Jonathan Coveney <[email protected]>wrote:
> 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 > > >
