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https://issues.apache.org/jira/browse/KAFKA-2484?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Liquan Pei updated KAFKA-2484:
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Status: Patch Available (was: In Progress)
> 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: Liquan Pei
> Priority: Minor
> Fix For: 0.9.0.0
>
>
> 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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