Jonas Traub created FLINK-4121:
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Summary: Add timeunit (ms) to docs for timestamps and watermarks
Key: FLINK-4121
URL: https://issues.apache.org/jira/browse/FLINK-4121
Project: Flink
Issue Type: Improvement
Components: DataStream API
Reporter: Jonas Traub
Priority: Trivial
I'm teaching a class where students are supposed to implement Flink streaming
programs. It seems to be unclear for them, that the time unit of timestamps and
watermarks is milliseconds.
They just see TimeWindow.seconds(...) or something similar and assume the
timestamps to be of the same unit (seconds) which is obviously not the case.
I just checked the documentation and there is no explicit specification of the
time unit used for timestamps.
After short talk with [~aljoscha], I'll open a mini-PR to address this issue.
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