Reply at least once on 50+ topics?

Hi everyone!

I wanted to ask a hand on a query. I wanted to create a badge granted when someone replies at least once on at least topics.

So far, using different sql queries in this thread I have the easy part : 50 replies

SELECT user_id, 0 post_id, current_timestamp granted_at 
FROM badge_posts  
WHERE post_number > 1 
AND (:backfill OR user_id IN (:user_ids) OR 0 NOT IN (:post_ids) )
GROUP BY user_id 
HAVING count(*) >= 50

But I lack the knowledge to add the trigger that the replies need to be into 50 or more different topics.

If anyone has a clue, I’ll take it


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