Question

I have a tuple with schema (a:int, b:int, c:int) stored in alias first. I want to convert each tuple to have a new relation second with schema like this:

(d: (a:int, b:int, c:int))

Basically, I’ve wrapped my initial tuple in another tuple and named the field. This is in preparation for a cross operation where I want to cross two relations but keep each one in a named field.

Here is what I would expect it to look like, except there’s an error:

second = FOREACH first GENERATE TOTUPLE(*) AS (d:tuple);

This errors out too:

second = FOREACH first GENERATE TOTUPLE(*) AS (d:tuple (a:int, b:int, c:int));

Thanks!
Uri

Answer 1

What about:

second = FOREACH first GENERATE TOTUPLE(*) AS d;
describe second;
second: {d: (a: int,b: int,c: int)}