stevenzwu commented on issue #4190: URL: https://github.com/apache/iceberg/issues/4190#issuecomment-1079336184
I am not sure this would the universally desired behavior. if data stream contains incompatible schema change (like removing a required field), it will break the downstream consumers. there is a value of automatically syncing input data schema to Iceberg table schema (for compatible schema evolution). Personally, I would like to keep it at the control plane, which would be more natural if there is a schema registry for tracking input data schema change. It is tricky to support in automatic schema sync in the data plane. There would be parallel Iceberg writers (like hundreds) for a single sink table. Coordinating metadata (like schema) change is very tricky. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
