ASF GitHub Bot commented on KAFKA-6454:

mjsax opened a new pull request #4519: KAFKA-6454: Allow timestamp manipulation 
in Processor API
URL: https://github.com/apache/kafka/pull/4519
   implements KIP-251

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> Allow timestamp manipulation in Processor API
> ---------------------------------------------
>                 Key: KAFKA-6454
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6454
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>    Affects Versions: 1.0.0
>            Reporter: Matthias J. Sax
>            Assignee: Matthias J. Sax
>            Priority: Major
>              Labels: kip
>             Fix For: 1.2.0
> Atm, Kafka Streams only has a defined "contract" about timestamp propagation 
> at the Processor API level: all processor within a sub-topology, see the 
> timestamp from the input topic record and this timestamp will be used for all 
> result record when writing them to an topic, too.
> For the DSL and also for custom operator, it would be desirable to allow 
> timestamp manipulation for at Processor level for individual records that are 
> forwarded.
> KIP-251: 
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-251%3A+Allow+timestamp+manipulation+in+Processor+API

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