feat: 가상화 문서들 추가
This commit is contained in:
DongHyeonka
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<svg xmlns="http://www.w3.org/2000/svg" width="1236" height="421" viewBox="0 0 1236 421" role="img" aria-labelledby="diagram-title diagram-description">
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<title id="diagram-title">두 형제 문제는 Fetch Join에서 합류한 뒤 단계별 해법으로 최종 구조가 된다</title>
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<desc id="diagram-description">왼쪽에서 과제 요구사항, 도메인·데이터 모델, 최초 피드 조회 기준선 순으로 시작한다. 기준선에서 컬렉션 N+1(N1)과 User·Page 연관의 숨은 쿼리(N2)가 서로 앞뒤가 아닌 형제 문제로 동시에 갈라지고, 두 경로는 Fetch Join 시도에서 합류한다. 이 시도는 다중 컬렉션·페이징 실패로 이어진다. 마지막 노드는 Batch Fetch, DTO Projection, 아이템별 Top-3, Keyset Pagination, 가시성 조건 인덱싱을 거쳐 최종 피드 조회 구조에 도달하는 순서를 담는다.</desc>
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<metadata>{"techviz":{"spec_version":"1.1","id":"strategy-journey","profile":"component-flow"},"source_context":{"document":"docs/n+1liner/final/document.md","document_sha256":"f9e048a68db0ab82078955bf611b06a71a0033539e0c87ff0aa0d620a3126e36","anchor":{"kind":"heading","value":"2. 조회 전략의 전체 여정","line":30}},"evidence_policy":"Each factual element cites source lines or is marked assumption.","diagram_only":true}</metadata>
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@@ -50,23 +50,23 @@
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<text class="edge-label" x="325.8" y="166.0">기준선에서 갈라짐</text>
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<text class="edge-label" x="324.0" y="272.0">기준선에서 갈라짐</text>
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<polyline class="edge kind-improvement style-solid emphasis-normal" points="864.0,218.0 944.0,218.0 944.0,218.0 1024.0,218.0" data-evidence="25-25" />
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<polyline class="edge kind-problem style-solid emphasis-normal" points="220.0,209.0 305.2,209.0 305.2,121.0 390.5,121.0" data-evidence="32-33" />
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<text class="edge-label" x="329.2" y="166.0">동시 분기</text>
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<text class="edge-label" x="324.0" y="272.0">동시 분기</text>
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<polyline class="edge kind-improvement style-solid emphasis-normal" points="864.0,218.0 944.0,218.0 944.0,218.0 1024.0,218.0" data-evidence="34-36" />
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<text class="edge-label" x="944.0" y="191.0">실패 뒤 단계별 개선</text>
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<text class="edge-label" x="656.2" y="166.0">Fetch Join으로 합류</text>
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<polyline class="edge kind-flow style-solid emphasis-normal" points="554.0,315.0 634.0,315.0 634.0,227.0 714.0,227.0" data-evidence="25-25" />
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<text class="edge-label" x="658.0" y="272.0">Fetch Join으로 합류</text>
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<polyline class="edge kind-flow style-solid emphasis-normal" points="543.5,121.0 628.8,121.0 628.8,209.0 714.0,209.0" data-evidence="34-34" />
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<text class="edge-label" x="652.8" y="166.0">합류</text>
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<text class="edge-label" x="658.0" y="272.0">합류</text>
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<rect class="node-shape kind-journey-stage emphasis-normal role-source" data-evidence="23-26,42-42" x="70.0" y="165.5" width="150.0" height="105.0" rx="7" />
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<text class="node-label" x="145.0" y="192.5">요구사항·모델·기준선</text>
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<text class="node-detail" x="86.0" y="230.5">1 과제 요구사항</text>
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@@ -74,32 +74,32 @@
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<text class="node-detail" x="86.0" y="262.5">3 최초 피드 조회</text>
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<rect class="node-shape kind-problem emphasis-normal role-service" data-evidence="32-34" x="390.5" y="60.0" width="153.0" height="122.0" rx="7" />
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<text class="node-label" x="467.0" y="87.0">컬렉션 N+1 (N1)</text>
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<text class="node-detail" x="399.5" y="125.0">유형: 컬렉션 N+1</text>
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<text class="node-detail" x="399.5" y="141.0">발생: 기준선과 동시에</text>
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<text class="node-detail" x="399.5" y="157.0">관계: N2와 형제 문제</text>
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<text class="node-detail" x="399.5" y="173.0">진행: Fetch Join으로 합류</text>
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<text class="node-detail" x="406.5" y="125.0">유형: 컬렉션 N+1</text>
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<text class="node-detail" x="406.5" y="141.0">발생: 기준선과 동시에</text>
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<text class="node-detail" x="406.5" y="157.0">관계: N2와 형제 문제</text>
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<text class="node-detail" x="406.5" y="173.0">진행: Fetch Join 합류</text>
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<text class="node-label" x="467.0" y="281.0">User·Page 숨은 쿼리 (N2)</text>
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<text class="node-detail" x="396.0" y="319.0">유형: User·Page 숨은 쿼리</text>
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<text class="node-detail" x="396.0" y="335.0">발생: 기준선과 동시에</text>
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<text class="node-detail" x="396.0" y="351.0">관계: N1과 형제 문제</text>
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<text class="node-detail" x="396.0" y="367.0">진행: Fetch Join으로 합류</text>
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<text class="node-detail" x="396.0" y="367.0">진행: Fetch Join 합류</text>
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<rect class="node-shape kind-query-strategy emphasis-warning role-service" data-evidence="34-35" x="714.0" y="174.0" width="150.0" height="88.0" rx="7" />
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<text class="node-label" x="789.0" y="201.0">Fetch Join → 실패</text>
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<text class="node-detail" x="730.0" y="239.0">1 N1·N2 합류</text>
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<text class="node-detail" x="730.0" y="255.0">2 다중 컬렉션·페이징 실패</text>
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<rect class="node-shape kind-query-strategy emphasis-primary role-sink" data-evidence="32-32,35-36" x="1024.0" y="140.0" width="167.0" height="156.0" rx="7" />
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<text class="node-label" x="1107.5" y="168.0">후속 개선 → 최종 구조</text>
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<text class="node-detail" x="1040.0" y="206.0">1 Batch Fetch</text>
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Before Width: | Height: | Size: 9.3 KiB After Width: | Height: | Size: 9.3 KiB |
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