@abstractmethod
    def get_due_jobs(self, now):
Already taken care of in the `get_select_precolumns` method.
dataset/ETHPy150Open agronholm/apscheduler/apscheduler/jobstores/base.py/BaseJobStore.get_due_jobs--crossover with--dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/dialects/firebird/base.py/FBCompiler.limit_clause