create table Users
(
    id       int auto_increment primary key,
    username varchar(50)  not null,
    password varchar(255) not null,

    constraint username unique (username)
) character set 'utf8mb4'
  collate 'utf8mb4_general_ci';

create table Notes
(
    uuid       binary(16)  not null primary key,
    title      varchar(50) not null,
    content    text        not null,
    user_id    int         not null,
    updated_at datetime    null,

    constraint Notes_fk_user foreign key (user_id) references Users (id) on delete cascade

) character set 'utf8mb4'
  collate 'utf8mb4_general_ci';

create index user_id on Notes (user_id);

create table Tags
(
    id        int auto_increment primary key,
    name      varchar(50) not null,
    note_uuid binary(16)  not null,
    constraint Tags_fk_note foreign key (note_uuid) references Notes (uuid) on delete cascade
) character set 'utf8mb4'
  collate 'utf8mb4_general_ci';

create index note_uuid on Tags (note_uuid);