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

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
>

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
> >
>