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https://issues.apache.org/jira/browse/FLINK-17631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17105327#comment-17105327
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Jark Wu commented on FLINK-17631:
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Hi [~kkl0u], I think the difference between charType and stringType is the
charType limits only one character size, otherwise an validation exception will
be thrown.
> Supports char type for ConfigOption
> -----------------------------------
>
> Key: FLINK-17631
> URL: https://issues.apache.org/jira/browse/FLINK-17631
> Project: Flink
> Issue Type: Improvement
> Components: API / Core
> Affects Versions: 1.11.0
> Reporter: Danny Chen
> Assignee: Danny Chen
> Priority: Major
> Fix For: 1.11.0
>
>
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