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https://issues.apache.org/jira/browse/FLINK-18539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154395#comment-17154395
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Jark Wu commented on FLINK-18539:
---------------------------------
cc [~jqin]
> StreamExecutionEnvironment#addSource(SourceFunction, TypeInformation) doesn't
> use the user defined type information
> -------------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-18539
> URL: https://issues.apache.org/jira/browse/FLINK-18539
> Project: Flink
> Issue Type: Task
> Affects Versions: 1.11.0
> Reporter: Jark Wu
> Priority: Critical
> Fix For: 1.12.0, 1.11.1
>
>
> {code:java}
> class MySource<T> implements SourceFunction<T>, ResultTypeQueryable<T> {
> TypeInformation getProducedType() {
> return TypeExtractor.createTypeInfo(SourceFunction.class, this.getClass(),
> 0, null, null);
> }
> }
> DataStream ds = tEnv.addSource(new MySource(), Types.ROW(Types.STRING))
> {code}
> The returned {{TypeInformation}} of {{MySource}} is {{GenericTypeInfo}}, not
> the user given {{RowTypeInfo}}.
> It seems that {{StreamExecutionEnvironment#getTypeInfo}} doesn't use the user
> given {{typeInfo}} in the highest priority.
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