[jira] [Created] (FLINK-9625) Enrich the error information to user

[Shang Yuanchun (Jira)]

mingleizhang created FLINK-9625:
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             Summary: Enrich the error information to user
                 Key: FLINK-9625
                 URL: https://issues.apache.org/jira/browse/FLINK-9625
             Project: Flink
          Issue Type: Improvement
            Reporter: mingleizhang
            Assignee: mingleizhang


When the fields too many, and the types do not match with it would cause the below error. I think we should tell the users which field type does not match.

{code:java}
Exception in thread "main" org.apache.flink.table.api.TableException: Result field does not match requested type. Requested: String; Actual: Integer
        at org.apache.flink.table.api.TableEnvironment$$anonfun$generateRowConverterFunction$1.apply(TableEnvironment.scala:953)
        at org.apache.flink.table.api.TableEnvironment$$anonfun$generateRowConverterFunction$1.apply(TableEnvironment.scala:944)
        at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
        at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
        at org.apache.flink.table.api.TableEnvironment.generateRowConverterFunction(TableEnvironment.scala:944)
        at org.apache.flink.table.api.StreamTableEnvironment.getConversionMapperWithChanges(StreamTableEnvironment.scala:358)
        at org.apache.flink.table.api.StreamTableEnvironment.translate(StreamTableEnvironment.scala:794)
        at org.apache.flink.table.api.StreamTableEnvironment.translate(StreamTableEnvironment.scala:734)
        at org.apache.flink.table.api.java.StreamTableEnvironment.toRetractStream(StreamTableEnvironment.scala:414)
        at org.apache.flink.table.api.java.StreamTableEnvironment.toRetractStream(StreamTableEnvironment.scala:357)
        at router.StreamRouterRunning.main(StreamRouterRunning.java:76)
{code}




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