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Schema Evolution in Data Systems

Schema evolution changes table structure without rewriting historical data. See how stable column IDs and Apache Iceberg metadata keep old files queryable.

In the full article

  1. What is schema evolution in a data system?
  2. How do old files match a new schema?
  3. How does Apache Iceberg manage schema changes?
  4. When does schema evolution require more than metadata?
  5. Key takeaways
  6. How Hyperlake helps
  7. Frequently asked questions

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