CREATE TABLE `m_loan_charge` (
  `loan_id` bigint(20) NOT NULL,
  `charge_id` bigint(20) NOT NULL,
  `charge_time_enum` smallint(5) NOT NULL,
  `charge_calculation_enum` smallint(5) NOT NULL,
  `amount` decimal(19,6) NOT NULL,
  PRIMARY KEY (`loan_id`,`charge_id`),
  KEY `charge_id` (`charge_id`),
  CONSTRAINT `m_loan_charge_ibfk_1` FOREIGN KEY (`charge_id`) REFERENCES `m_charge` (`id`),
  CONSTRAINT `m_loan_charge_ibfk_2` FOREIGN KEY (`loan_id`) REFERENCES `m_loan` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;