FA-97934 / Dataset split isolation / Member archive
Dataset split: purging uses row positions instead of timestamps · case 04
purging uses row positions instead of timestamps.
Case contract
Given [id,time] rows and validation [lo,hi), retain rows strictly before lo or at/after hi.
Why this case matters
This toy split allocator makes membership rules explicit for reproducible evaluation fixtures.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| unordered left right | ["a", "b", "c"] | ["a", "c"] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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