Hola Karen,
La consulta a continuación enumera todos los temas que no han sido respondidos por el personal, incluso si el tema ya ha recibido una respuesta de la comunidad.
--[params]
--date :start_date = 2021-01-01
--date :end_date = 2021-12-31
SELECT t.id topic_id, category_id
FROM topics t
WHERE t.deleted_at IS NULL
AND t.category_id IS NOT NULL
AND t.created_at::date BETWEEN :start_date AND :end_date
AND t.id NOT IN (
SELECT p.topic_id
FROM posts p
JOIN users u ON p.user_id = u.id
WHERE u.admin = 't' OR u.moderator = 't'
AND p.post_number > 1
)
ORDER BY topic_id DESC