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https://issues.apache.org/jira/browse/FLINK-8500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16344858#comment-16344858
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Aljoscha Krettek commented on FLINK-8500:
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Yes, the Kafka timestamp is already used as the event-time timestamp. 😃 See
here:
https://github.com/apache/flink/blob/28e8043ba09b47c99439fdb536a4226eccf70c07/flink-connectors/flink-connector-kafka-0.10/src/main/java/org/apache/flink/streaming/connectors/kafka/internal/Kafka010Fetcher.java#L85
> Get the timestamp of the Kafka message from kafka consumer(Kafka010Fetcher)
> ---------------------------------------------------------------------------
>
> Key: FLINK-8500
> URL: https://issues.apache.org/jira/browse/FLINK-8500
> Project: Flink
> Issue Type: Improvement
> Components: Kafka Connector
> Affects Versions: 1.4.0
> Reporter: yanxiaobin
> Priority: Major
> Attachments: image-2018-01-30-14-58-58-167.png
>
>
> The method deserialize of KeyedDeserializationSchema needs a parameter
> 'kafka message timestamp' (from ConsumerRecord) .In some business scenarios,
> this is useful！
>
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