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https://issues.apache.org/jira/browse/FLINK-20970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu closed FLINK-20970.
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Resolution: Not A Problem
As we only maintain 3 majar releases, and it has been fixed in the 1.11 and
1.12, I will close this one.
> 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
> Priority: Major
> 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?
> Whatever the value is, it will be return -1.
> !image-2021-01-14-17-06-28-648.png|thumbnail!
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