### 改动不大

修改 sys_user 表索引为

### 1. 先删除 原有老索引
alter table sys_user drop index unique_username ;

### 2. 增加新索引
alter table sys_user add index `sys_user_index` (`username`,`real_name`);

### 3. 增加表
-- ----------------------------
-- Table structure for test_car
-- ----------------------------
DROP TABLE IF EXISTS `test_car`;
CREATE TABLE `test_car` (
  `id` bigint(19) NOT NULL COMMENT '主键',
  `car_name` varchar(20) COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车名称',
  `car_type` varchar(20) COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车类型',
  `car_brand` varchar(50) COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '汽车品牌',
  `produce_data` date NOT NULL COMMENT '生产日期',
  `iz_usable` char(1) COLLATE utf8mb4_general_ci NOT NULL COMMENT '是否启用',
  `tenant_id` bigint(19) DEFAULT NULL COMMENT '多租户ID',
  `deleted` char(1) COLLATE utf8mb4_general_ci NOT NULL COMMENT '删除标记:0未删除，1删除',
  `version` int(10) NOT NULL COMMENT '版本号(乐观锁)',
  `create_by` bigint(19) NOT NULL COMMENT '创建用户',
  `create_time` datetime NOT NULL COMMENT '创建日期',
  `update_by` bigint(19) NOT NULL COMMENT '修改用户',
  `update_time` datetime NOT NULL COMMENT '修改日期',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='测试汽车';

-- ----------------------------
-- Records of test_car
-- ----------------------------
BEGIN;
INSERT INTO `test_car` VALUES (1340634224709677058, '奔驰GXX', 'Gxx', '奔驰', '2020-12-20', '1', 1, '0', 0, 1313694379541635074, '2020-12-20 20:24:42', 1313694379541635074, '2020-12-20 20:24:42');
INSERT INTO `test_car` VALUES (1340634337075081217, '北汽绅宝', '电动', '绅宝', '2020-12-13', '1', 1, '0', 0, 1313694379541635074, '2020-12-20 20:25:08', 1313694379541635074, '2020-12-20 20:25:08');
INSERT INTO `test_car` VALUES (1340634432696823810, '宝马7系', '烧油', '宝马', '2020-12-20', '0', 1, '0', 0, 1313694379541635074, '2020-12-20 20:25:31', 1313694379541635074, '2020-12-20 20:25:31');
INSERT INTO `test_car` VALUES (1340634485616357378, '测试', '123', '123', '2020-12-07', '0', 1, '1', 0, 1313694379541635074, '2020-12-20 20:25:44', 1313694379541635074, '2020-12-20 20:25:44');
INSERT INTO `test_car` VALUES (1340635288087375874, '宝马7系', '烧油', '宝马', '2020-12-20', '0', 1, '0', 0, 1313694379541635074, '2020-12-20 20:28:55', 1313694379541635074, '2020-12-20 20:28:55');
INSERT INTO `test_car` VALUES (1340635288095764482, '北汽绅宝', '电动', '绅宝', '2020-12-13', '1', 1, '0', 0, 1313694379541635074, '2020-12-20 20:28:55', 1313694379541635074, '2020-12-20 20:28:55');
INSERT INTO `test_car` VALUES (1340635288099958786, '奔驰GXX', 'Gxx', '奔驰', '2020-12-20', '1', 1, '0', 0, 1313694379541635074, '2020-12-20 20:28:55', 1313694379541635074, '2020-12-20 20:28:55');
COMMIT;

-- ----------------------------
-- Table structure for test_car_copy1
-- ----------------------------
DROP TABLE IF EXISTS `test_car_copy1`;
CREATE TABLE `test_car_copy1` (
  `id` bigint(19) NOT NULL COMMENT '主键',
  `car_name` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车名称',
  `car_type` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车类型',
  `car_brand` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '汽车品牌',
  `produce_data` date NOT NULL COMMENT '生产日期',
  `iz_usable` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '是否启用',
  `tenant_id` bigint(19) DEFAULT NULL COMMENT '多租户ID',
  `deleted` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '删除标记:0未删除，1删除',
  `version` int(10) NOT NULL COMMENT '版本号(乐观锁)',
  `create_by` bigint(19) NOT NULL COMMENT '创建用户',
  `create_time` datetime NOT NULL COMMENT '创建日期',
  `update_by` bigint(19) NOT NULL COMMENT '修改用户',
  `update_time` datetime NOT NULL COMMENT '修改日期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='测试';

-- ----------------------------
-- Table structure for test_car_copy2
-- ----------------------------
DROP TABLE IF EXISTS `test_car_copy2`;
CREATE TABLE `test_car_copy2` (
  `id` bigint(19) NOT NULL COMMENT '主键',
  `car_name` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车名称',
  `car_type` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车类型',
  `car_brand` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '汽车品牌',
  `produce_data` date NOT NULL COMMENT '生产日期',
  `iz_usable` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '是否启用',
  `tenant_id` bigint(19) DEFAULT NULL COMMENT '多租户ID',
  `deleted` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '删除标记:0未删除，1删除',
  `version` int(10) NOT NULL COMMENT '版本号(乐观锁)',
  `create_by` bigint(19) NOT NULL COMMENT '创建用户',
  `create_time` datetime NOT NULL COMMENT '创建日期',
  `update_by` bigint(19) NOT NULL COMMENT '修改用户',
  `update_time` datetime NOT NULL COMMENT '修改日期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='测试';

-- ----------------------------
-- Table structure for test_car_copy3
-- ----------------------------
DROP TABLE IF EXISTS `test_car_copy3`;
CREATE TABLE `test_car_copy3` (
  `id` bigint(19) NOT NULL COMMENT '主键',
  `car_name` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车名称',
  `car_type` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车类型',
  `car_brand` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '汽车品牌',
  `produce_data` date NOT NULL COMMENT '生产日期',
  `iz_usable` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '是否启用',
  `tenant_id` bigint(19) DEFAULT NULL COMMENT '多租户ID',
  `deleted` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '删除标记:0未删除，1删除',
  `version` int(10) NOT NULL COMMENT '版本号(乐观锁)',
  `create_by` bigint(19) NOT NULL COMMENT '创建用户',
  `create_time` datetime NOT NULL COMMENT '创建日期',
  `update_by` bigint(19) NOT NULL COMMENT '修改用户',
  `update_time` datetime NOT NULL COMMENT '修改日期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='测试';

-- ----------------------------
-- Table structure for test_car_copy4
-- ----------------------------
DROP TABLE IF EXISTS `test_car_copy4`;
CREATE TABLE `test_car_copy4` (
  `id` bigint(19) NOT NULL COMMENT '主键',
  `car_name` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车名称',
  `car_type` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车类型',
  `car_brand` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '汽车品牌',
  `produce_data` date NOT NULL COMMENT '生产日期',
  `iz_usable` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '是否启用',
  `tenant_id` bigint(19) DEFAULT NULL COMMENT '多租户ID',
  `deleted` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '删除标记:0未删除，1删除',
  `version` int(10) NOT NULL COMMENT '版本号(乐观锁)',
  `create_by` bigint(19) NOT NULL COMMENT '创建用户',
  `create_time` datetime NOT NULL COMMENT '创建日期',
  `update_by` bigint(19) NOT NULL COMMENT '修改用户',
  `update_time` datetime NOT NULL COMMENT '修改日期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='测试';

-- ----------------------------
-- Table structure for test_car_copy5
-- ----------------------------
DROP TABLE IF EXISTS `test_car_copy5`;
CREATE TABLE `test_car_copy5` (
  `id` bigint(19) NOT NULL COMMENT '主键',
  `car_name` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车名称',
  `car_type` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '汽车类型',
  `car_brand` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL COMMENT '汽车品牌',
  `produce_data` date NOT NULL COMMENT '生产日期',
  `iz_usable` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '是否启用',
  `tenant_id` bigint(19) DEFAULT NULL COMMENT '多租户ID',
  `deleted` char(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL COMMENT '删除标记:0未删除，1删除',
  `version` int(10) NOT NULL COMMENT '版本号(乐观锁)',
  `create_by` bigint(19) NOT NULL COMMENT '创建用户',
  `create_time` datetime NOT NULL COMMENT '创建日期',
  `update_by` bigint(19) NOT NULL COMMENT '修改用户',
  `update_time` datetime NOT NULL COMMENT '修改日期',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci COMMENT='测试';