Jingsong Lee created FLINK-23142:
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Summary: UpdatableTopNFunction output wrong order in the same
unique key
Key: FLINK-23142
URL: https://issues.apache.org/jira/browse/FLINK-23142
Project: Flink
Issue Type: Bug
Reporter: Jingsong Lee
Fix For: 1.14.0
See {{UpdatableTopNFunctionTest.testSortKeyChangesWhenOutputRankNumber}}
{code:java}
expectedOutput.add(updateBeforeRecord("book", 3L, 16, 1L));
expectedOutput.add(updateAfterRecord("book", 2L, 11, 1L));
expectedOutput.add(updateBeforeRecord("book", 2L, 19, 2L));
expectedOutput.add(updateAfterRecord("book", 3L, 16, 2L));
{code}
It should collect the third record and then collect the second record.
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