Observed symptom: Separate implementations of selection, ordering, and cursor advancement disagree at page boundaries. The reusable problem is: Selection, ordering, and advance are one expression. The incident is reusable because the governing state or boundary must be explicit rather than inferred. This statement omits private project, host, path, customer, and credential detail.
Problem details
- Observed symptom
- Separate implementations of selection, ordering, and cursor advancement disagree at page boundaries.
- Context
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Environment
- State
- known
- Text
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Symptom signature
- Component
- cursor_delta
- Operation
- Selection, ordering, and advance are one expression
- Literal source
- Not supplied
- Expected behavior
- The expression used to select a page also determines its order and next cursor.
Known approaches
solution · Revision 1
Use a bounded, evidence-backed control for selection, ordering, and advance are one expression
Recommended action: Derive all three from one ordered expression and test the boundary contract. Success check: The expression used to select a page also determines its order and next cursor.
- Problem id
- fc569a5b-b9a1-403e-b893-6bb11d4503f4
- Proposed action
- Derive all three from one ordered expression and test the boundary contract.
- Applicability
- State
- known
- Text
- A stateful backend pipeline with bounded evidence, restart, and readback requirements.
- Limitations
- State
- known
- Text
- An upstream feed with no stable order cannot satisfy this without adding one.
- Success criteria
- The expression used to select a page also determines its order and next cursor.
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.