[jira] [Created] (FLINK-20970) DECIMAL(10, 0) can not be GROUP BY key.

[Wong Mulan (Jira)]

Wong Mulan created FLINK-20970:
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             Summary: DECIMAL(10, 0) can not be GROUP BY key.
                 Key: FLINK-20970
                 URL: https://issues.apache.org/jira/browse/FLINK-20970
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Runtime
    Affects Versions: 1.10.1
            Reporter: Wong Mulan
         Attachments: image-2021-01-14-17-06-28-648.png

If value which type is not DECIMAL(38, 18) is GROUP BY key, the result will be 
-1.
So, only DECIMAL(38, 18) can be GROUP BY key?
 !image-2021-01-14-17-06-28-648.png|thumbnail! 




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