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CREATE TABLE users (
user_id SERIAL PRIMARY KEY,
nick text UNIQUE NOT NULL,
hash text NOT NULL,
email text NOT NULL,
created_on timestamp NOT NULL DEFAULT now()
);
CREATE TABLE rooms (
room_id SERIAL PRIMARY KEY,
name text UNIQUE NOT NULL,
created_on timestamp NOT NULL
);
CREATE TABLE messages (
message_id SERIAL PRIMARY KEY,
user_id integer NOT NULL REFERENCES users,
room_id integer NOT NULL REFERENCES rooms,
content text NOT NULL,
created_on timestamp NOT NULL
);
CREATE TABLE user_session (
session_id bigint PRIMARY KEY,
user_id integer NOT NULL REFERENCES users,
id_address text NOT NULL,
ttl timestamp NOT NULL
);
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