How to Handle Default Values in Avro

Date: 2024-09-16

Apache Avro uses schema-based serialization for efficient data handling in big data systems. A key feature is its support for default values in schemas, crucial for schema evolution and backward compatibility. If a field is missing in a record, Avro uses its defined default value, ensuring data integrity even with schema updates. This is demonstrated with Java examples showing how default values are automatically applied when reading and writing Avro data. Default values prevent compatibility issues when adding fields to existing schemas.

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