FA-45432 / Data systems / Member archive

UNION pagination stops skipping after the first branch · case 02

UNION pagination stops skipping after the first branch.

Member previewVariant 2 · 3 implementations · 7 checks per implementation

Case contract

Concatenate ordered input branches with bag semantics, then apply one global nonnegative offset and limit. Branch-local boundaries, empty branches, and repeated rows do not reset pagination counters. Output order is branch order then row order.

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
offset crosses branches	`[3, 4]`	`[4, 5]`	Failed

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