text: create table user
  (
      username varchar(50)  not null
          primary key,
      password varchar(255) not null
  );
  
  create table todo_item
  (
      id       int auto_increment
          primary key,
      text     varchar(100)                                                                  null,
      priority enum ('PRIORITY1', 'PRIORITY2', 'PRIORITY3', 'PRIORITY4') default 'PRIORITY1' null,
      status   enum ('COMPLETED', 'NOT_COMPLETED')                                           null,
      username varchar(50)                                                                   null,
      constraint todo_item_ibfk_1
          foreign key (username) references user (username)
  );
  
  create index username
      on todo_item (username);
  
  
  