Timo Walther created FLINK-14903:
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Summary: Relax structured types constraints
Key: FLINK-14903
URL: https://issues.apache.org/jira/browse/FLINK-14903
Project: Flink
Issue Type: Sub-task
Components: Table SQL / API
Reporter: Timo Walther
Assignee: Timo Walther
As mentioned in FLIP-65:
In order to allow type extraction of structured types that are not registered
in a catalog, we need to relax the structured type concept to "inline or
anonymous structured types" that are not identified by an object identifier in
a catalog but the fully qualified implementation class.
In order to support case classes and immutable types, we relax the constraint
of enforcing a default constructor by the alternative of having a constructor
that fully assigns all fields (same parameter names and types). Because we are
already using code generation, the implementation of creating instances even
without a default constructor is relatively easy.
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