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- UserID = [
- 1
- 2
- 3
- 4
- 5
- 3
- 2
- 2
- 3]
- [
- 1@me.com
- 2@me.com
- 3@me.com
- 4@me.com
- 5@me.com
- 3@me.com
- 2@me.com
- 2@me.com
- 3@me.com]
- UserInfo.where(:id => UserID).pluck(:email)
- [
- 1@me.com
- 2@me.com
- 3@me.com
- 4@me.com
- 5@me.com]
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