Victoria Xia created KAFKA-14491:
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Summary: Introduce Versioned Key-Value Stores to Kafka Streams
Key: KAFKA-14491
URL: https://issues.apache.org/jira/browse/KAFKA-14491
Project: Kafka
Issue Type: Improvement
Reporter: Victoria Xia
Assignee: Victoria Xia
The key-value state stores used by Kafka Streams today maintain only the latest
value associated with each key. In order to support applications which require
access to older record versions, Kafka Streams should have versioned state
stores. Versioned state stores are similar to key-value stores except they can
store multiple record versions for a single key. An example use case for
versioned key-value stores is in providing proper temporal join semantics for
stream-tables joins with regards to out-of-order data.
See KIP for more:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-889%3A+Versioned+State+Stores
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