回答編集履歴
2
追記
test
CHANGED
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@@ -25,3 +25,27 @@
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25
25
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)
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26
26
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27
27
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```
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28
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+
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29
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+
追記
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30
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+
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31
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--
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32
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33
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+
users の行を求めたいのだから、keyのレベルを合わせるのにはサブクエリーが必須になるんですよね。
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34
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+
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35
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一応別パターン
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36
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37
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```SQL
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38
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39
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select *
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40
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41
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from users inner join (
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42
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43
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select user_id from posts inner join comments on posts.id=comments.post_id
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44
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45
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group by user_id
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46
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47
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having count(*)=sum(case when comments.body='foo' then 1 else 0 end)
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48
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49
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) cond on cond.user_id=users.id
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50
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+
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51
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```
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1
修正
test
CHANGED
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@@ -12,7 +12,7 @@
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12
12
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13
13
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select 1 from posts inner join comments on posts.id=comments.post_id
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14
14
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15
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-
where posts.user_id=users.id and comments.body
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15
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+
where posts.user_id=users.id and comments.body<>'foo'
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16
16
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17
17
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)
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18
18
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