Requirement
The business-data checker must remain portable across the supported relational database engines so that vendor version changes do not require major redesign or long support gaps.
Acceptance Criteria
- Version support readiness: for each supported engine family, the latest generally available major version of MySQL, PostgreSQL, Oracle Database, and Db2 passes 100% of connector smoke tests and >= 95% of the top 20 integrity-check scenarios within <= 10 business days after vendor release; source: compatibility matrix and CI test report; horizon: each relevant major database release.
- Adaptation effort: enabling support for one new major database version requires <= 2 person-days of development and regression-test effort for the existing checker scope; source: engineering work log and release ticket; horizon: each relevant major database release.
- Gate behavior: if either threshold is missed, that database version is marked unsupported in product documentation and blocked from production rollout within <= 1 business day after the failed validation; source: release note and support-status log; horizon: each compatibility validation.