def METHOD_NAME(self):
    self.confs['test'].post(**{'field.data': 'number', 'accelerated_fields.data': '{"data": -1}'})
    for x in range(50):
        self.col.insert(json.dumps({'_key': str(x), 'data': str(x), 'ignore': x}))
    data = self.col.query(sort='data:-1', limit=20, fields='data,_id:0', skip=10)
    self.assertEqual(len(data), 20)
    for x in range(20):
        self.assertEqual(data[x]['data'], 39 - x)
        self.assertTrue(not 'ignore' in data[x])
        self.assertTrue(not '_key' in data[x])