Ich habe eine Data Explorer-Abfrage dafür (die den Benutzernamen anzeigt, um CSV/Gruppen/PMs usw. zu aktivieren):
-- Wer hat dieses Thema angesehen? https://meta.discourse.org/t/see-who-viewed-topic/29277/11
-- [params]
-- int :topic_id
SELECT tu.user_id, u.username, total_msecs_viewed/1000 AS seconds_viewed
FROM topic_users tu
JOIN users u ON tu.user_id = u.id
WHERE tu.topic_id = :topic_id
AND total_msecs_viewed > 0
GROUP BY tu.user_id, u.username, tu.total_msecs_viewed
ORDER BY tu.total_msecs_viewed desc
Wenn es in deinem Kontext in Ordnung ist, E-Mail-Adressen preiszugeben, empfehle ich stattdessen diese Abfrage:
-- Wer hat dieses Thema angesehen? Mit E-Mails. https://meta.discourse.org/t/see-who-viewed-topic/29277/11
-- [params]
-- int :topic_id
SELECT tu.user_id, email, total_msecs_viewed/1000 AS seconds_viewed
FROM topic_users tu
JOIN user_emails ue ON tu.user_id = ue.user_id
WHERE tu.topic_id = :topic_id
AND total_msecs_viewed > 0
GROUP BY tu.user_id, ue.email, tu.total_msecs_viewed
ORDER BY tu.total_msecs_viewed desc