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https://issues.apache.org/jira/browse/FLINK-8500?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16346180#comment-16346180
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yanxiaobin edited comment on FLINK-8500 at 1/31/18 3:01 AM:
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hi,[~aljoscha] , thank you for your reply!Please look at the next picture!

!image-2018-01-31-10-48-59-633.png!

The final eventtime is obtained from  “{color:#000080}final long 
{color}newTimestamp = extractAscendingTimestamp(element);“  , and   the element 
was deserialized from "KeyedDeserializationSchema" . Also the  parameter 
"elementPrevTimestamp" that is Kafka timestamp is not used!  Thanks!


was (Author: backlight):
hi,[~aljoscha] , thank you for your reply!Please look at the next picture!

!image-2018-01-31-10-48-59-633.png!

The final eventtime is obtained from  “{color:#000080}final long 
{color}newTimestamp = extractAscendingTimestamp(element);“  , and   the element 
was deserialized from "KeyedDeserializationSchema" . Also the  parameter 
"elementPrevTimestamp" is not used!  Thanks!

> 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, 
> image-2018-01-31-10-48-59-633.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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