Rong Rong created FLINK-9294:
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Summary: Improve type inference for UDFs with composite parameter
or result type
Key: FLINK-9294
URL: https://issues.apache.org/jira/browse/FLINK-9294
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Rong Rong
For now most of the UDF function signatures that includes composite types such
as `MAP` `ARRAY`, etc would require user to override `getParameterType` or
`getResultType` method explicitly.
It should be able to resolve the composite type based on the function signature.
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