def category_boolean_maker(series):
    return 0 if np.isnan(series) is True else 1
Load Core result rows using Core / fetchmany.
dataset/ETHPy150Open agconti/KaggleAux/kaggleaux/modeling.py/category_boolean_maker--crossover with--dataset/ETHPy150Open zzzeek/sqlalchemy/examples/performance/large_resultsets.py/test_core_fetchmany