Juntao Hu created FLINK-31017:
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Summary: Early-started partial match timeout not yield completed
matches
Key: FLINK-31017
URL: https://issues.apache.org/jira/browse/FLINK-31017
Project: Flink
Issue Type: Bug
Components: Library / CEP
Affects Versions: 1.16.1, 1.15.3, 1.17.0
Reporter: Juntao Hu
Fix For: 1.18.0
Pattern example:
{code:java}
Pattern.begin("A").where(startsWith("a")).oneOrMore().consecutive().greedy()
.followedBy("B")
.where(count("A") > 2 ? startsWith("b") : startsWith("c"))
.within(Time.seconds(3));{code}
Sequence example, currently without any output:
a1 a2 a3 a4 c1
When match[a3, a4, c1] completes, partial match[a1, a2, a3, a4] is earlier, so
NFA#processMatchesAccordingToSkipStrategy() won't give any result, which is the
expected behavior. However, when partial match[a1, a2, a3, a4] is timed-out,
completed match[a3, a4, c1] should be "freed" from NFAState to output.
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