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document-haness/docs/keycloak-session-store/final/assets/b2-primary-key-overwrite/b2-primary-key-overwrite.svg
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<title id="diagram-title">덮어쓰기를 만드는 기본키</title>
<desc id="diagram-description">토큰을 PostgreSQL 로 옮겨 다중 인스턴스 문제는 풀렸다. 그러나 기본키가 client_registration_id 와 principal_name 의 조합이고 세션 id 가 들어 있지 않다. 같은 사용자의 두 세션이 같은 행을 쓰므로 나중 로그인이 앞의 토큰을 덮어쓴다. 그리고 로그아웃하면 Redis 세션은 0 키로 정리되지만 PostgreSQL 에는 평문 refresh token 이 한 행 그대로 남는다.</desc>
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