In 0.9.2 I don't see getInputSchema, so it must be quite fresh :) 2012/8/16 Jonathan Coveney <[email protected]>
> Indeed, this is the case. outputSchema is only called when the job is being > created on the client side, not on the job side. > > In the newer EvalFunc (not sure what version it was introduced in, but 7 is > quite old at this point), there is a public getInputSchema() method which > will return the input schema to the EvalFunc, and you can just call > outputSchema to get the outputSchema. So this exists :) > 2012/8/15 Віталій Тимчишин <[email protected]> > > > As far as I could see, it's being called only on planning, not on > > execution. It's a pity and I've thought to open enhancement Jira ticket. > > > > Середа, 15 серпня 2012 р. користувач Zhang Jianfeng <[email protected] > > > > написав: > > > Hello everyone, > > > > > > I am coding one pig UDF function, like MyUDF: > > > > > > public class MyUDF extends EvalFunc<Object>{ > > > > > > public Object exec(Tuple input) throws IOException() > > > public Schema outputSchema(Schema input){} > > > } > > > > > > But I found the outputSchema method never called in jobs. I use the > 0.7 > > > pig. Does anyone know why this happens? > > > > > > Any thoughts will be appreciated. > > > > > > Thanks, > > > Jian Feng > > > > > > > -- > > Best regards, > > Vitalii Tymchyshyn > > > -- Best regards, Vitalii Tymchyshyn
