FA-99479 / Vector retrieval ranking / Member archive
Vector retrieval: Multi-vector aggregation uses the maximum chunk distance · case 04
Multi-vector aggregation uses the maximum chunk distance.
Case contract
Rows [doc,distance] aggregate by minimum distance per document; nearest first.
Why this case matters
An offline vector retrieval toy model isolates one ranking contract from embedding generation, storage, and serving.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| nearest chunk wins | ["b", "a"] | ["a", "b"] | Failed |
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