Ewen Cheslack-Postava created KAFKA-2484:
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Summary: Add schema projection utilities
Key: KAFKA-2484
URL: https://issues.apache.org/jira/browse/KAFKA-2484
Project: Kafka
Issue Type: Sub-task
Components: copycat
Reporter: Ewen Cheslack-Postava
Assignee: Ewen Cheslack-Postava
Priority: Minor
Since Copycat has support for versioned schemas and connectors may encounter
different versions of the same schema, it will be useful for some connectors to
be able to project between different versions of a schema, or have an automatic
way to try to project to a target schema (e.g. an existing database table the
connector is trying to write data to).
These utilities should be pretty small because the complex types we support are
fairly limited. The primary code required will be for Structs. However, we
should take care in designing these utilities since there may be performance
implications. For example, when projecting between two schemas, it would be
better to come up with a plan object that can efficiently perform the project
and be able to reuse that plan many times.
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