Timo Walther created FLINK-25341:
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Summary: 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
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, use the string representation of maps.
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