def METHOD_NAME(self):
    pa_table = csv.read_csv(self.csv_file)
    test_table = self.session.import_table(pa_table)
    ub_ops = [ema_tick(decay_ticks=100, cols=["ema_a = a"]),
              cum_prod(cols=["cc = c", "cb = b"]),
              ]
    query = self.session.query(test_table)
    (query.drop_columns(cols=['e'])
     .where(["a > 10"])
     .update_by(ops=ub_ops, by=["b"])
     .tail(10))
    result_table = query.exec()
    self.assertTrue(result_table.size == 10)