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작업 이유
작업 사항
GET /v2/chat-rooms
사용자 -⋲ 채팅방 멤버 ⋺- 채팅방
관계에서,user_id
만으로 "내가 가입한 모든 채팅방 목록과 각 채팅방의 참여자 수"를 구하기 위해선 3가지 방법이 있습니다.join을 쓰지 않으면서도, 전체 결과를 요청 한 번만에 수신할 수 있는 (3)의 방법을 택하여 구현했습니다.
실제 Hibernate 환경에서 실행되는 쿼리 로그는 아래 첨부합니다.
Details
리뷰어가 중점적으로 확인해야 하는 부분
발견한 이슈
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