[jira] [Created] (FLINK-19990) MultipleInputNodeCreationProcessor#isChainableSource should consider DataStreamScanProvider

[Shang Yuanchun (Jira)]

Caizhi Weng created FLINK-19990:
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             Summary: MultipleInputNodeCreationProcessor#isChainableSource should consider DataStreamScanProvider
                 Key: FLINK-19990
                 URL: https://issues.apache.org/jira/browse/FLINK-19990
             Project: Flink
          Issue Type: Bug
            Reporter: Caizhi Weng


{{MultipleInputNodeCreationProcessor#isChainableSource}} now only considers {{SourceProvider}}. However {{DataStreamScanProvider}} providing {{DataStream}}s with {{SourceTransformation}} are also chainable sources, and we need to take them into consideration.



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