Santosh is the best person to answer this, as he wrote that code. But, IIRC
its purpose is to store the "full" name of a column after cogroups and joins.
For example,
A = load 'foo' as (u, v);
B = load 'bar' as (x, y);
C = join A by u, B by x;
I believe the canonicalname will now hold A::u, etc.
Alan.
On Nov 16, 2011, at 7:25 PM, Jonathan Coveney wrote:
> If you do:
>
> Schema s1 = Utils.getSchemaFromString(
> "b:bag{t:tuple(name:chararray,age:int)}");
>
>
> then it will all be -1'd out. It doesn't seem to be used anywhere, I was
> just wondering, since in other case, it will be populated properly.
>
>
> Thanks
>
> Jon
