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document-haness/docs/clean-architecture-backend-template/final/evidence/raw/a05-f014-collection-fetch-pagination-probe.txt
T
DongHyeonkaandClaude Opus 5 b2963105a8 docs(keycloak-session-store): import the session-storage lab as a new project
The keycloak project ended with four open questions that design could not
settle. A two-VM lab was built to answer them by measurement, and this is
that material: 26 experiments, 125 raw command outputs, 22 browser captures.

Follows the import procedure in README.md.

  source/     the originating repository verbatim — 78 documents, 28 SVGs,
              8 manifests, plus .source-revision recording the commit
  final/      the SSOT
    document.md   729 lines written from the 29 experiment documents, not
                  concatenated: what was predicted, what was measured, and
                  where the measurement itself was wrong
    evidence/raw    125 outputs, flattened to <experiment>__<file> because
                    the originals collided (01-baseline.txt appeared three
                    times) and the audit only globs the top level
    evidence/meta   one per raw file; command and exitCode are null and the
                    README says why rather than inventing them
    evidence/browser  22 captures
    assets/       three diagrams through techviz
    .techviz/     their VizSpecs

A separate project rather than an addition to keycloak: the B-layer answers
that project's four questions, but the A, C and D layers are about cluster
failure, SSO and operations, and one document.md should hold one subject.
The four question records there can point here through 관계.

Recorded rather than papered over: only three of the 28 diagrams were
remade. The repository forbids hand-drawn SVG and forbids titles inside the
canvas; all 28 originals carry both, so converting them is redrawing, not
reformatting. They stay in source/ and the gap is written into the document.

verify-pipeline.py passes. audit-records.py reports no issues.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 22:51:59 +09:00

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# 락파일이 고정한 제공자
h2-2.4.240.jar
hibernate-core-7.2.24.Final.jar
# 저장소에서 fail_on_pagination_over_collection_fetch 를 켜는 곳: 0
# 게이트와 같은 모양의 조회를 그 제공자에게 직접 시킨다
WARN org.hibernate.orm.query -- HHH90003004: firstResult/maxResults specified with collection fetch; applying in memory
반환된 부모 수 : 20
그 조회가 낸 프리페어드 스테이트먼트 : 1
fail_on_pagination_over_collection_fetch : false
# 서버 없이 매 빌드마다 도는 레인에도 같은 형태가 있다
@Test
@DisplayName("one collection page requires a database-level parent bound")
void oneCollectionPageRequiresBoundedParentSelection() {
var expected = FetchPaginationExpectation.hibernate74PostgreSql(20);
assertThat(expected.maxReturnedParents()).isEqualTo(20);
assertThat(expected.requiresDatabaseLimit()).isTrue();
}