回答編集履歴
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追記
test
CHANGED
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@@ -1,3 +1,39 @@
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mysqlはあまり使ったことがありませんが、
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そのクエリをviewにしておいて、それをselectするようにすれば少しは早くなるんじゃないでしょうか？
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---
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**追記**
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```SQL
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14
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SELECT syumi_id,syumi_name,COUNT(pet_id) AS cnt
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FORM
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(
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SELECT DISTINCT
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syumi_id, syumi_name, pet_id
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FROM
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t_petlist
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INNER JOIN t_setting ON t_petlist.user_id = t_setting.user_id
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INNER JOIN t_syumi ON t_syumi.syumi_id = t_setting.syumi_id
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) tbl
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GROUP BY syumi_id
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ORDER BY cnt DESC
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39
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```
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