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https://issues.apache.org/jira/browse/FLINK-25341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Francesco Guardiani reassigned FLINK-25341:
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Assignee: Francesco Guardiani
> Improve casting structured type to STRING
> -----------------------------------------
>
> Key: FLINK-25341
> URL: https://issues.apache.org/jira/browse/FLINK-25341
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Francesco Guardiani
> Priority: Major
>
> Structured types currently use ROW to STRING logic. However, this is not very
> useful for users as the field order might be determined by Flink. Also,
> structured types has the nice property of defining a custom {{toString}} and
> attribute names.
> I would suggest the following:
> If the structured type has a {{StructuredType.getImplementationClass}}
> convert to external class and call {{toString}}.
> If no implementation class is present or the toString is not possible, use
> the string representation of maps.
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