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[jira] [Created] (FLINK-9531) Improve logging during type extraction of the Row type


Timo Walther created FLINK-9531:
-----------------------------------

             Summary: Improve logging during type extraction of the Row type
                 Key: FLINK-9531
                 URL: https://issues.apache.org/jira/browse/FLINK-9531
             Project: Flink
          Issue Type: Bug
          Components: Type Serialization System
            Reporter: Timo Walther
            Assignee: Timo Walther


Users of the Table API in Java will get several warnings about the usage of Rows even though the table program is specified correctly.

{code}
org.apache.flink.api.java.typeutils.TypeExtractor - class org.apache.flink.types.Row is not a valid POJO type
{code}

We should improve the user experience here. A correctly defined table program should not cause those messages. Users of the row type should rather be informed that they have to provide type information manually.



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