Guest Orders Hide New Users

#976

Marketing is looking for users who have never ordered. orders.user_id contains empty values for guest orders, and the old check breaks the list because of them. Fix it and return the id values for users without orders, sorted by id.

Buggy query

SELECT u.id
FROM users u
WHERE u.id NOT IN (SELECT user_id FROM orders)
ORDER BY u.id;

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5

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