[FLINK-31328] Greedy option on the looping pattern at the end not working

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.17.0, 1.15.3, 1.16.1
• Component/s: Library / CEP
• Assignee: Unassigned
• Reporter: Juntao Hu
• Created: 06/Mar/23 03:47
• Updated: 06/Mar/23 03:47

Description

If use greedy option on a looping pattern which is at the end of the whole pattern, the matching result is not "greedy".

Example1

pattern: A.oneOrMore().consecutive().greedy() (SKIP_TO_NEXT)

sequence: a1, a2, a3

result: [a1] [a2] [a3]

Example2

pattern: B.next(A).oneOrMore().consecutive().greedy() (SKIP_TO_NEXT)

sequence: b1, a1, a2, a3

result: [b1 a1]