[jira] [Created] (FLINK-19795) When TOPN handles duplicate data, it will throw an exception

[jinxin (Jira)]

jinxin created FLINK-19795:
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             Summary:  When TOPN handles duplicate data, it will throw an 
exception
                 Key: FLINK-19795
                 URL: https://issues.apache.org/jira/browse/FLINK-19795
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Runtime
    Affects Versions: 1.11.2
            Reporter: jinxin


When TOPN handles duplicate data, it will throw an exception :

"Can not retract a non-existent record. This should never happen."



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