FA-100275 / Dataset deduplication grouping / Member archive
Dataset deduplication: deduplication retains a lower-quality example · case 05
deduplication retains a lower-quality example.
Case contract
Rows [key,id,quality]. Return [key,id] for the highest-quality row per key, sorted by key; ties choose lexical ID.
Why this case matters
This deterministic toy operation makes one dataset equivalence or representative rule explicit.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| quality wins | [["k", "low"]] | [["k", "best"]] | Failed |
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