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https://issues.apache.org/jira/browse/FLINK-28368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17561985#comment-17561985
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Jark Wu commented on FLINK-28368:
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It's by design. Nullability is a part of data type in Flink.
> Get field type return result problem
> ------------------------------------
>
> Key: FLINK-28368
> URL: https://issues.apache.org/jira/browse/FLINK-28368
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Environment: flink1.14.x+iceberg0.13.1
> Reporter: hunter
> Priority: Minor
> Attachments: 1.png, 2.png
>
>
> When I use resolved Schema.get Column Data Types(), I expect it to return the
> types of all fields, but it returns the nullable of the field type. I don't
> know if it's a design flaw, or I Problems caused during use
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