buptljy created FLINK-10239:
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Summary: Register eventtime timer only once in eventtrigger
Key: FLINK-10239
URL: https://issues.apache.org/jira/browse/FLINK-10239
Project: Flink
Issue Type: Improvement
Affects Versions: 1.5.3
Reporter: buptljy
I find that we call ctx.registerEventTimeTimer(window.maxTimestamp()) every
time when an element is received in the window. Even though it doesn't affect
the result because it uses a Set, but I think it can still be an improvement if
we call it only once.
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