Tzu-Li (Gordon) Tai created FLINK-11406:
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Summary: Return TypeSerializerSchemaCompatibility.incompatible()
when arity of nested serializers don't match in
CompositeTypeSerializerSnapshot's compatibility check
Key: FLINK-11406
URL: https://issues.apache.org/jira/browse/FLINK-11406
Project: Flink
Issue Type: Improvement
Components: Type Serialization System
Reporter: Tzu-Li (Gordon) Tai
Assignee: Tzu-Li (Gordon) Tai
Fix For: 1.8.0
Right now, in
{{CompositeTypeSerializerSnapshot.resolveSchemaCompatibility(...)}}, if arity
of nested serializers don't match between the snapshot and the provided new
serializer, a runtime exception is thrown.
More ideally, this should return
{{TypeSerializerSchemaCompatibility.incompatible()}}.
We should also make it more clearer in the Javadocs that the
{{CompositeTypeSerializerSnapshot}} is intended for product serializers that
have a fixed arity of nested serializers.
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