优化mysql子查询语句

我正在做一个社区分享“令人毛骨悚然的意大利面”。 我的查询现在需要133ms，但我想让查询更快。 仅仅推荐一个关键词就足够了

这是我的桌子

列说明：

“cp_id”是指Creverypasta的id

“session_id”类似于writer

“令人毛骨悚然”是指令人毛骨悚然的意大利面有多令人毛骨悚然。当“令人毛骨悚然”为0时，它不是令人毛骨悚然的故事。但当这是1时，就令人毛骨悚然了

这是我的SQL查询

SELECT id, alias, created_at, modified_at, title, content, session_id, 
(SELECT COALESCE(SUM(case creepy when 1 then 1 else 0 end), 0) FROM 
creepy_points c WHERE creepypastas.id = c.cp_id) AS creepy_count, 
(SELECT COALESCE(SUM(case creepy when 0 then 1 else 0 end), 0) FROM 
creepy_points c WHERE creepypastas.id = c.cp_id) AS not_creepy_count, 
(SELECT COUNT(c.id) FROM creepypasta_comments c WHERE creepypastas.id = 
c.cp_id) AS comment_count 
FROM creepypastas ORDER BY created_at DESC

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对于您的查询，您可以在爬行点SCP\U id上添加索引，爬行：

SELECT id, alias, created_at, modified_at, title, content, session_id, 
(SELECT COALESCE(SUM(case creepy when 1 then 1 else 0 end), 0) FROM 
creepy_points c WHERE creepypastas.id = c.cp_id) AS creepy_count, 
(SELECT COALESCE(SUM(case creepy when 0 then 1 else 0 end), 0) FROM 
creepy_points c WHERE creepypastas.id = c.cp_id) AS not_creepy_count, 
(SELECT COUNT(c.id) FROM creepypasta_comments c WHERE creepypastas.id = 
c.cp_id) AS comment_count 
FROM creepypastas ORDER BY created_at DESC

create index idx_creepypoints_cpid_creepy on creepy_points(cpid, creepy);