Mysql - 尝试从评论表中获取最大评论数的帖子ID

Question

在MySQL数据库表注释中有超过20亿条记录，从这个表中我必须获取具有最大注释数的post_id：

select post_id,Count(id) as total from comments group by post_id

但是这给了我所有现有的帖子ID，而不是上述查询的评论。我只想要帖子ID最多没有评论

Answer 1

select post_id, Count(id) as total 
from comments 
group by post_id
order by total desc
limit 1