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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2018/04/17 18:54:00 UTC

[jira] [Created] (FLINK-9198) Improve error messages in AbstractDeserializationSchema for type extraction

Stephan Ewen created FLINK-9198:
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             Summary: Improve error messages in AbstractDeserializationSchema for type extraction
                 Key: FLINK-9198
                 URL: https://issues.apache.org/jira/browse/FLINK-9198
             Project: Flink
          Issue Type: Improvement
    Affects Versions: 1.4.2
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
             Fix For: 1.5.0


User feedback: When type extraction fails in the {{AbstractDeserializationSchema}}, the error message does not explain fully how to fix this.

I suggest to improve the error message and add some convenience constructors to directly pass TypeInformation when needed.

We can also simplify the class a bit, because TypeInformation needs no longer be dropped during serialization.



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