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https://issues.apache.org/jira/browse/FLINK-11962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16795818#comment-16795818
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Ruoyu Dai commented on FLINK-11962:
-----------------------------------

Thanks for reply. When using DataStream API and the KeyBy instead of  Table SQL 
"GROUP BY",the chechpoint size would be normal.

I will discuss the issue with mails.

> Huge Flink Checkpoint Size When Using "Group By" Clause With Table SQL
> ----------------------------------------------------------------------
>
>                 Key: FLINK-11962
>                 URL: https://issues.apache.org/jira/browse/FLINK-11962
>             Project: Flink
>          Issue Type: Bug
>          Components: API / Table SQL
>    Affects Versions: 1.6.3
>         Environment: Flink On Yarn, Centos 7.0.
>            Reporter: Ruoyu Dai
>            Priority: Major
>
> https://stackoverflow.com/questions/55235157/huge-flink-checkpoint-size-when-using-group-by-clause-with-table-sql



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