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https://issues.apache.org/jira/browse/KAFKA-8558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16921506#comment-16921506
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ASF GitHub Bot commented on KAFKA-8558:
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bbejeck commented on pull request #7285: KAFKA-8558: Add materialized to join
URL: https://github.com/apache/kafka/pull/7285
This PR adds `Materialized` to a `Streams` - `Streams` join, allowing to
separate the naming of the join state stores from the name of the join
processor. See [KIP-479 for more
details](https://cwiki.apache.org/confluence/display/KAFKA/KIP-479%3A+Add+Materialized+to+Join).
For testing some of the existing tests were updated and additional tests
added verifying the expected behavior.
### Committer Checklist (excluded from commit message)
- [ ] Verify design and implementation
- [ ] Verify test coverage and CI build status
- [ ] Verify documentation (including upgrade notes)
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> KIP-479 - Add Materialized Overload to KStream#Join
> ----------------------------------------------------
>
> Key: KAFKA-8558
> URL: https://issues.apache.org/jira/browse/KAFKA-8558
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Bill Bejeck
> Assignee: Bill Bejeck
> Priority: Blocker
> Labels: needs-kip
> Fix For: 2.4.0
>
>
> To prevent a topology incompatibility with the release of 2.4 and the naming
> of Join operations we'll add an overloaded KStream#join method accepting a
> Materialized parameter. This will allow users to explicitly name state stores
> created by Kafka Streams in the join operation.
>
> The overloads will apply to all flavors of KStream#join (inner, left, and
> right).
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