[jira] [Created] (FLINK-18835) sql using group by, duplicated group fileld appears

[Shang Yuanchun (Jira)]

YHF created FLINK-18835:
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             Summary: sql using group by, duplicated group fileld appears
                 Key: FLINK-18835
                 URL: https://issues.apache.org/jira/browse/FLINK-18835
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.11.1
            Reporter: YHF
         Attachments: SumAnalysis.java

datasource is kafka,then create a temporary view, group by (fieldA,fieldB) using sql,

then transform the result table to datastream using toRetractStream, then print the result,

I find duplicated (fieldA,fieldB)

see attachment for code



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