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Posted to dev@kafka.apache.org by "Piotr Fras (Jira)" <ji...@apache.org> on 2021/01/15 15:19:00 UTC

[jira] [Created] (KAFKA-12213) Kafka Streams aggregation Initializer to accept record key

Piotr Fras created KAFKA-12213:
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             Summary: Kafka Streams aggregation Initializer to accept record key
                 Key: KAFKA-12213
                 URL: https://issues.apache.org/jira/browse/KAFKA-12213
             Project: Kafka
          Issue Type: Bug
          Components: streams
            Reporter: Piotr Fras
            Assignee: Piotr Fras


Sometimes Kafka record key contains useful information for creating a zero object in aggregation Initializer. This feature is to add kafka record key to Initializer.

There were two approaches I considered to implement this feature, one respecting backwards compatibility for internal and external APIs and the other one which is not. I chose the latter one as it was more strait forward. We may want to validate this approach tho.



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