SQL- WHILE in Pig

[Murphy Ric]

I have a code in SQL to convert to Pig. I request for your help in
converting this code.

WHILE @Dt1 <= @Dt2
BEGIN
INSERT INTO ( , , , )
                SELECT , , , ,
                WHERE X > Y
SELECT @Dt1 = SELECT DATEADD(MM,1,@Dt1))
END