mysql - MySQL：有点复杂的查询返回错误的计数结果

Question

有这三个表：

posts
posts_replies
likes

这个查询几乎可以很好地返回我的数据，但由于某种原因，帖子的回复计数不准确。

SELECT posts.title, posts.num, posts.status, posts.category, posts.content, posts.member_num, COUNT( posts_replies.post_num ) AS count, COUNT( likes.comment_num ) AS likes_count
FROM posts_replies
INNER JOIN posts ON ( posts_replies.post_num = posts.num )
LEFT JOIN likes ON ( likes.comment_num = posts_replies.num )
WHERE posts.status =1
AND posts.access = 'Public'
GROUP BY posts.num
ORDER BY count DESC
LIMIT 50

这是我正在使用的计数：COUNT(posts_replies.post_num) AS count

对此有何建议？

谢谢

Answer 1

对于链接到该回复的每个赞，您的查询将对每个回复计数一次。

为了只计算每个回复一次，请替换

COUNT( posts_replies.post_num ) AS count

和

COUNT(DISTINCT posts_replies.num ) AS count