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https://issues.apache.org/jira/browse/FLINK-29737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17623546#comment-17623546
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chenzihao commented on FLINK-29737:
-----------------------------------

[~fsk119] Thanks for your reply. I have opened the PR, please help to review 
it, thanks a lot.

> Support DataGen on waveform function
> ------------------------------------
>
>                 Key: FLINK-29737
>                 URL: https://issues.apache.org/jira/browse/FLINK-29737
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / API
>            Reporter: chenzihao
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: image-2022-10-24-16-09-47-386.png, 
> image-2022-10-24-16-09-52-410.png
>
>
> In some scenarios, we need to simulate flow changes in the production 
> environment. The current DATAGEN feature only supports data generation at a 
> constant rate. We try to simulate increments of flow using batch jobs, but 
> the production rate is not smooth, so I suggest that we can support sin-based 
> data generation in order to get smooth changes. 
> 1. add another batch job to simulate increments of flow.
> !image-2022-10-24-16-09-52-410.png!
> 2. sin-based.
> !image-2022-10-24-16-09-47-386.png!



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