[jira] [Created] (FLINK-22700) Propagate watermarks to Sink API

[Shang Yuanchun (Jira)]

Eron Wright created FLINK-22700:
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             Summary: Propagate watermarks to Sink API
                 Key: FLINK-22700
                 URL: https://issues.apache.org/jira/browse/FLINK-22700
             Project: Flink
          Issue Type: Improvement
          Components: API / DataStream
            Reporter: Eron Wright
            Assignee: Eron Wright


Make it possible for sink functions / sink writers to propagate watermarks to external storage systems.

Note that sink functions obtain the current watermark upon receiving a record.  This issue is about obtaining the watermark as it is received from upstream (i.e. not dependent on receipt of an event).



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