MySQL按子查詢總和排序

Question

我試圖通過一組子查詢從表和順序中選擇一組行：

SELECT *, 
(SELECT Count(id) > 0 FROM places_users WHERE places_id = places.id) AS verified_bool,
(SELECT Count(id) > 0 FROM places_services WHERE places_id = places.id) AS services_bool
FROM places
ORDER BY sum(verified_bool + services_bool) DESC 
LIMIT 0, 10

但是它只返回1個結果。 子查詢檢查連接到原始行的其他表。 我只需要驗證其他表是否至少有1個結果，所以我使用的是布爾值，然后嘗試對子查詢0或1求和，然后將原始結果從總和最大的那些排序到最小的那些。

Answer 1

問題在於order by子句中的總和：

SELECT *, 
(SELECT Count(id) > 0 FROM places_users WHERE places_id = places.id) AS verified_bool,
(SELECT Count(id) > 0 FROM places_services WHERE places_id = places.id) AS services_bool
FROM places
ORDER BY (verified_bool + services_bool) DESC 
LIMIT 0, 10