[jira] [Closed] (FLINK-11406) Return TypeSerializerSchemaCompatibility.incompatible() when arity of nested serializers don't match in CompositeTypeSerializerSnapshot's compatibility check

["Tzu-Li (Gordon) Tai (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-11406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tzu-Li (Gordon) Tai closed FLINK-11406.
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    Resolution: Fixed

Merged.

1.8.0: 7aa802a4b2e0490b57afb2266cb8368158398380
1.9.0: 0ab52e9edc66bac96a2e336f6e9799ff40c7576b

> 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: API / Type Serialization System
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.8.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> 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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