Design a CDC pipeline that handles schema evolution gracefully
Tests designing resilient CDC pipelines against schema drift. A strong answer covers schema registries with versioning, backward-compatible serialization, and automated compatibility checks.
Tests whether your CDC pipeline can absorb transactional schema changes without corrupting downstream tables or dashboards. A great answer covers four layers: first, a schema registry with enforced compatibility rules and explicit versioning; second, serialization formats like Avro or Parquet that natively support schema evolution; third, separating raw ingestion from modeled layers to isolate changes; fourth, automated testing and rollback for incompatible changes.
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