| Yisheng Zhou | Software Engineer II Liang Mou | Sr Staff Software Engineer Gabriel Raphael Garcia Montoya | Staff Software Engineer Istvan Podor | Staff Software Engineer Introduction In the first post of this series , we introduced Pinterest’s next-generation CDC-based ingestion platform built on Kafka, Flink, Spark, and Iceberg. In production, upstream schemas are constantly evolving, and in a distributed CDC pipeline, schema is not just metadata — it is a cross-system contract spanning ingestion, transformation, storage, and historical backfill. A schema change that is not handled carefully |