@udf_map(produces=['ucase_lhs2', 'rhs2'])
def upper_case(tuple):
    return [tuple.get('lhs2').upper(), tuple.get('rhs2')]
Shift periodic sequence x by a: y(u) = x(u+a).
dataset/ETHPy150Open twitter/pycascading/examples/joins.py/upper_case--crossover with--dataset/ETHPy150Open scipy/scipy/scipy/fftpack/pseudo_diffs.py/shift