my understanding is that Pig 0.8 expects the first form and Pig 0.9 requires the second.
Raghu. On Mon, Oct 3, 2011 at 8:27 AM, Andrew Clegg <andrew.clegg+mah...@gmail.com>wrote: > Hi, > > When you have a UDF that returns a bag, and you're writing the > outputSchema method, do you have to explicitly include the mandatory > 'container' tuple within the bag, or is this implicit? > > i.e. if I'm returning a bag of ints, do I have to do: > > return new Schema( > new FieldSchema(null, > new Schema( > new FieldSchema(null, DataType.INTEGER)), DataType.BAG)); > > Or do I have to explicitly define a tuple like so: > > return new Schema( > new FieldSchema(null, > new Schema( > new FieldSchema(null, > new Schema( > new FieldSchema(null, DataType.INTEGER)), DataType.TUPLE)), > DataType.BAG)); > > The docs seem pretty vague on this, and you're allowed to do either. > My feeling would be that if the first form was illegal, you wouldn't > be allowed to create a schema like that, but this may be wishful > thinking. > > Thanks, > > Andrew. > > -- > > http://tinyurl.com/andrew-clegg-linkedin | http://twitter.com/andrew_clegg >
