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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2666) Allow custom Timestamp extractors for Flink sources
Date Sun, 04 Oct 2015 15:11:26 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14942683#comment-14942683

ASF GitHub Bot commented on FLINK-2666:

Github user aljoscha closed the pull request at:


> Allow custom Timestamp extractors for Flink sources
> ---------------------------------------------------
>                 Key: FLINK-2666
>                 URL: https://issues.apache.org/jira/browse/FLINK-2666
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Gyula Fora
>            Assignee: Aljoscha Krettek
>            Priority: Minor
> When record timestamps are turned on users currently have 2 ways of specifying record
> They can either chose to automatically attach ingress timestamps (and send watermarks),
or custom implement a sourcefunction to manually assign timestamps and emit watermarks.
> It would be good if users could define a Timestamp extractor function that will attach
a timestamp for every record generated using any of the current Flink sources. Also watermarks
for these records should be automatically generated based on the extracted event time (assuming
monotonicity per source) periodically.

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