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January 6, 2021 09:27
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SELECT | |
users.user_id, | |
COUNT(DISTINCT post_id) AS post_count, | |
COUNT(DISTINCT page_id) AS page_count | |
FROM users | |
LEFT JOIN posts ON posts.user_id = users.user_id | |
LEFT JOIN pages ON pages.user_id = users.user_id | |
GROUP BY 1 | |
+---------+------------+------------+ | |
| user_id | post_count | page_count | | |
+---------+------------+------------+ | |
| 1 | 3 | 0 | | |
| 2 | 2 | 2 | | |
| 3 | 0 | 5 | | |
+---------+------------+------------+ |
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