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https://issues.apache.org/jira/browse/KAFKA-10179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17140166#comment-17140166
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Rohan Desai commented on KAFKA-10179:
-------------------------------------
Also, it's not really clear from the documentation that
`serialize(deserialize())` is assumed to be the identity function for
`ktable(..)`.
> State Store Passes Wrong Changelog Topic to Serde for Optimized Source Tables
> -----------------------------------------------------------------------------
>
> Key: KAFKA-10179
> URL: https://issues.apache.org/jira/browse/KAFKA-10179
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.5.0
> Reporter: Bruno Cadonna
> Assignee: Bruno Cadonna
> Priority: Major
> Fix For: 2.7.0
>
>
> {{MeteredKeyValueStore}} passes the name of the changelog topic of the state
> store to the state store serdes. Currently, it always passes {{<application
> ID>-<store name>-changelog}} as the changelog topic name. However, for
> optimized source tables the changelog topic is the source topic.
> Most serdes do not use the topic name passed to them. However, if the serdes
> actually use the topic name for (de)serialization, e.g., when Kafka Streams
> is used with Confluent's Schema Registry, a
> {{org.apache.kafka.common.errors.SerializationException}} is thrown.
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