FA-45814 / Data systems / Member archive

Interval join keeps intervals whose end equals the probe time · case 04

Interval join keeps intervals whose end equals the probe time.

Member previewVariant 4 · 3 implementations · 7 checks per implementation

Case contract

Join probe points [id,key,time] to interval rows [id,key,start,end] under start<=time<end and ordinary non-null key equality. Emit probe-major [probe-id,interval-id] pairs, with matching intervals ordered by (start,id). Empty intervals never match; overlapping intervals all produce rows.

Why this case matters

A bounded deterministic data engine model makes representation and changelog faults reproducible.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
end expired	`[[10, 20]]`	`[]`	Failed

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