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are unique", "violations": 0 } ] } }, "rules": [ { "name": "Every like comes after the post it likes", "sql": "SELECT count(*) AS violations FROM post_likes l JOIN posts p ON p.id = l.post_id WHERE l.created_at < p.created_at" }, { "name": "Every comment comes after its post", "sql": "SELECT count(*) AS violations FROM comments c JOIN posts p ON p.id = c.post_id WHERE c.created_at < p.created_at" }, { "name": "Every post comes after its author signed up", "sql": "SELECT count(*) AS violations FROM posts p JOIN users u ON u.id = p.user_id WHERE p.created_at < u.created_at" }, { "name": "A story is viewed after it is posted, and expires within a day", "sql": "SELECT (SELECT count(*) FROM story_views v JOIN stories s ON s.id = v.story_id WHERE v.created_at < s.created_at) + (SELECT count(*) FROM stories WHERE expires_at < created_at OR expires_at > created_at + interval '1 day') AS violations" }, { "name": "A message is read after it is sent", "sql": "SELECT count(*) AS violations FROM message_receipts r JOIN messages m ON m.id = r.message_id WHERE r.read_at < m.created_at" }, { "name": "Usernames are unique", "sql": "SELECT count(*) - count(DISTINCT username) AS violations FROM users" } ] }, "publishedAt": 1791242071621, "updatedAt": 1791242071621 }