-- Test SQL file for sqls LSP

CREATE TABLE IF NOT EXISTS users (
  id SERIAL PRIMARY KEY,
  username VARCHAR(255) NOT NULL UNIQUE,
  email VARCHAR(255) NOT NULL,
  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE IF NOT EXISTS posts (
  id SERIAL PRIMARY KEY,
  user_id INTEGER REFERENCES users(id),
  title VARCHAR(500) NOT NULL,
  body TEXT,
  published BOOLEAN DEFAULT FALSE
);

SELECT u.username, p.title, p.body
FROM users u
JOIN posts p ON u.id = p.user_id
WHERE p.published = TRUE
ORDER BY p.created_at DESC;

INSERT INTO users (username, email)
VALUES ('alice', 'alice@example.com');