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Posted to dev@flink.apache.org by "Tzu-Li (Gordon) Tai (JIRA)" <ji...@apache.org> on 2018/11/15 11:11:00 UTC

[jira] [Created] (FLINK-10897) Support POJO state schema evolution

Tzu-Li (Gordon) Tai created FLINK-10897:
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             Summary: Support POJO state schema evolution
                 Key: FLINK-10897
                 URL: https://issues.apache.org/jira/browse/FLINK-10897
             Project: Flink
          Issue Type: Sub-task
          Components: Type Serialization System
            Reporter: Tzu-Li (Gordon) Tai


Main action point for this is to implement a separate POJO serializer that is specifically used as the restore serializer.

This restore POJO serializer should be able to read and dump values of fields that no longer exists in the updated POJO schema, and assign default values to newly added fields. Changing fields types is out of scope and would not be supported.



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