CREATE TABLE IF NOT EXISTS Users (
    ID SERIAL,
    lastname VARCHAR(32),
    firstname VARCHAR(32),
    middlename VARCHAR(32),
    salty_password CHAR(60), --nodejs bcrypt.
    chats INT[] -- to table Chats, column ID.
);

CREATE TABLE IF NOT EXISTS Chats (
    ID SERIAL,
    name VARCHAR(128), --chat name
    admins INT[], -- to table Users, column ID.
    messages INT[] -- ref to table Messages, column ID.
);

CREATE TABLE IF NOT EXISTS Messages (
    ID SERIAL,
    author_id INT, -- ref to table Users, column ID.
    time_sent TIMESTAMP,
    content TEXT
);