thanks,
but this is a bit more cumbersome: if I have
generate K.(x1), K.(x2), K.(x3) .... , K.(x100);
I'd have to re-write each xn by adding K.( )
it would be nice if the schema of K can strip off the surrounding {( )}.
actually it should,
since this is after a FLATTEN()
Yang
On Sun, Jun 24, 2012 at 11:17 AM, yonghu <[email protected]> wrote:
> So, I think you want to project the x in K. You can write the pig as:
>
> M = foreach K generate K.(x) as X;
>
> Hope this can help you.
>
> Yong
>
> On Sun, Jun 24, 2012 at 12:40 PM, Yang <[email protected]> wrote:
> > my UDF returns a bag of tuples : mybag:bag{ mytuple: tuple ( x: int,
> y:int)}
> >
> > in my pig script:
> >
> > I do
> >
> > K = foreach blah generate UDF( xxx);
> >
> > M = foreach K generate x;
> >
> >
> > here PIG 0.8.1 says x can not be found in schema, since
> >
> > describe K
> >
> > shows:
> > { mytuple:tuple(x:int , y:int) }
> >
> > while 0.10.0
> >
> > shows
> > {x:int, y:int}
>
