[ 
https://issues.apache.org/jira/browse/FLINK-8096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16256536#comment-16256536
 ] 

ASF GitHub Bot commented on FLINK-8096:
---------------------------------------

Github user dianfu commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5025#discussion_r151609700
  
    --- Diff: 
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/StreamTableEnvironment.scala
 ---
    @@ -234,11 +234,12 @@ abstract class StreamTableEnvironment(
                 "UpsertStreamTableSink requires that Table has a full primary 
keys if it is updated.")
             }
             val outputType = sink.getOutputType
    +        val resultType = getResultType(table.getRelNode, optimizedPlan)
    --- End diff --
    
    Do you mean adding method such as `getResultType` in `TableSink`? The 
`resultType`  means the type of the result of the current sql query. IMO, even 
we can specify the `resultType` in `TableSink`, it can only be used for 
validation purpose, we should not use it directly. Thoughts?


> Fix time material issue when write to TableSink
> -----------------------------------------------
>
>                 Key: FLINK-8096
>                 URL: https://issues.apache.org/jira/browse/FLINK-8096
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>            Reporter: Dian Fu
>            Assignee: Dian Fu
>             Fix For: 1.5.0
>
>
> We will get the following exception for unit test 
> {{TimeAttributesITCase.testCalcMaterialization3}}.
> {noformat}
> org.apache.flink.table.api.TableException: Found more than one rowtime field: 
> [rowtime, _c1, _c2] in the table that should be converted to a DataStream.
> Please select the rowtime field that should be used as event-time timestamp 
> for the DataStream by casting all other fields to TIMESTAMP.
>       at 
> org.apache.flink.table.api.StreamTableEnvironment.translate(StreamTableEnvironment.scala:783)
>       at 
> org.apache.flink.table.api.StreamTableEnvironment.writeToSink(StreamTableEnvironment.scala:263)
>       at org.apache.flink.table.api.Table.writeToSink(table.scala:862)
>       at org.apache.flink.table.api.Table.writeToSink(table.scala:830)
>       at 
> org.apache.flink.table.runtime.stream.TimeAttributesITCase.testCalcMaterialization3(TimeAttributesITCase.scala:196)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
>       at 
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
>       at 
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
>       at 
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
>       at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
>       at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>       at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
>       at 
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
>       at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
>       at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
>       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
>       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
>       at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
>       at 
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
>       at 
> org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
>       at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
>       at org.junit.rules.RunRules.evaluate(RunRules.java:20)
>       at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
>       at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
>       at 
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
>       at 
> com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
>       at 
> com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:237)
>       at 
> com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
> {noformat}



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