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https://issues.apache.org/jira/browse/FLINK-9625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mingleizhang updated FLINK-9625:
--------------------------------
Component/s: Table API & SQL
> Enrich the error information to user
> -------------------------------------
>
> Key: FLINK-9625
> URL: https://issues.apache.org/jira/browse/FLINK-9625
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: mingleizhang
> Assignee: mingleizhang
> Priority: Major
>
> 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. Instead of only tell the users mismatch type which is.
> {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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