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https://issues.apache.org/jira/browse/FLINK-32993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17760250#comment-17760250
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Yubin Li commented on FLINK-32993:
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[[email protected]] Char type is different obviously with others, field length
has been explictly configured in the type definition by users, and others not.
the current behavior is confusing users.
!image-2023-08-30-13-44-10-106.png!
besides, the following results show that the behavior has made wrong data in
the downstream tables.
!image-2023-08-30-13-56-12-468.png!
!image-2023-08-30-13-56-28-403.png!
> Datagen connector produce unexpected Char type data
> ---------------------------------------------------
>
> Key: FLINK-32993
> URL: https://issues.apache.org/jira/browse/FLINK-32993
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Common
> Affects Versions: 1.19.0
> Reporter: Yubin Li
> Priority: Major
> Attachments: image-2023-08-30-11-47-05-887.png,
> image-2023-08-30-11-47-43-719.png, image-2023-08-30-11-51-44-498.png,
> image-2023-08-30-13-44-10-106.png, image-2023-08-30-13-56-12-468.png,
> image-2023-08-30-13-56-28-403.png
>
>
> create table as follows:
> !image-2023-08-30-11-51-44-498.png!
> results:
> !image-2023-08-30-11-47-05-887.png!
> I have found that Char type data length is 100, which same as String type, it
> is caused by the two types use the same data generation logic, and we could
> correct it.
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