orneryd / NornicDB / 27860008857

89%

Build Type

push

github

Committed by orneryd

Commit Message

fix(search): make CPU brute-force vector search opt-in

Default vector search now uses HNSW regardless of dataset size by setting
the CPU brute-force threshold default to 0. Operators can opt back into
exact CPU brute-force below a chosen vector count with
NORNICDB_VECTOR_CPU_BRUTE_MAX_N.

Changes:
- Add configurable CPU brute-force threshold with default 0
- Preserve GPU brute-force threshold behavior
- Avoid empty-vector HNSW persistence/warmup work
- Update runtime strategy tests for HNSW-default behavior
- Add coverage for CPU brute-force threshold opt-in
- Document the new strategy selection and per-database config key

Validation:
- go test ./pkg/search -count=1
- go test ./pkg/cypher ./pkg/search -count=1
- go test ./pkg/cypher -run '^TestGraphitiScenarioE2E_ExternalVectorIngestDoesNotUseExactScanFallbackBeforeWarmup$' -count=1

Coverage Stats

15 of 18 new or added lines in 3 files covered. (83.33%)

148 existing lines in 8 files now uncovered.

141497 of 158788 relevant lines covered (89.11%)

1.04 hits per line