text: DROP TABLE IF EXISTS long_id_model;
  DROP TABLE IF EXISTS string_id_model;
  DROP TABLE IF EXISTS auto_id_model;
  DROP TABLE IF EXISTS test_user;
  DROP TABLE IF EXISTS test_user_ext;
  DROP TABLE IF EXISTS test_user_account;
  DROP TABLE IF EXISTS twods_model;
  
  CREATE TABLE long_id_model
  (
      id      BIGINT(20)  NOT NULL COMMENT '主键ID',
      name    VARCHAR(50) NULL DEFAULT NULL COMMENT '姓名',
      age     INT(11)     NULL DEFAULT NULL COMMENT '年龄',
      email   VARCHAR(50) NULL DEFAULT NULL COMMENT '邮箱',
      role_id BIGINT(20)  NULL DEFAULT NULL COMMENT '角色ID',
      PRIMARY KEY (id)
  );
  
  CREATE TABLE string_id_model
  (
      id           VARCHAR(50) NOT NULL,
      name         VARCHAR(50) COMMENT '姓名',
      gmt_create   DATETIME,
      gmt_modified DATETIME,
      PRIMARY KEY (`id`)
  );
  
  CREATE TABLE auto_id_model
  (
      id   BIGINT NOT NULL AUTO_INCREMENT,
      name VARCHAR(50),
      PRIMARY KEY (`id`)
  ) AUTO_INCREMENT=1;
  
  CREATE TABLE twods_model
  (
      id      BIGINT(20)  NOT NULL COMMENT '主键ID',
      name    VARCHAR(50) NULL DEFAULT NULL COMMENT '姓名',
      age     INT(11)     NULL DEFAULT NULL COMMENT '年龄',
      PRIMARY KEY (id)
  );
  
  CREATE TABLE test_user
  (
      id   VARCHAR(50) NOT NULL,
      name VARCHAR(50) COMMENT '姓名',
      PRIMARY KEY (`id`)
  );
  
  CREATE TABLE test_user_ext
  (
      user_id VARCHAR(50) NOT NULL COMMENT '用户id',
      ext     VARCHAR(200) COMMENT '拓展信息'
  );
  
  CREATE TABLE test_user_account
  (
      id               VARCHAR(50) NOT NULL,
      user_id          VARCHAR(50) NOT NULL COMMENT '用户id',
      account_name     VARCHAR(50) NOT NULL COMMENT '账号',
      account_password VARCHAR(50) NOT NULL COMMENT '密码',
      PRIMARY KEY (`id`)
  );
  