Câu 35: C2090-101: IBM Big Data Engineer

Which of the following Pig Latin expressions is used to sum a set of numbers in a bag?

1. A. X = FOR EACH C -> (group,SUM(A.a1))
2. B. X = FOR EACH C GEN [group, SUM (A.a1)];
3. C. X = FOREACH C GENERATE group, SUM (A.a1); — đáp án hiện tại
4. D. X = FOREACH C GENERATE FLATTEN SUM (A.a1);