[jira] [Created] (FLINK-8437) SideOutput() API is ambiguous

[Shang Yuanchun (Jira)]

Chesnay Schepler created FLINK-8437:
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             Summary: SideOutput() API is ambiguous
                 Key: FLINK-8437
                 URL: https://issues.apache.org/jira/browse/FLINK-8437
             Project: Flink
          Issue Type: Bug
          Components: Streaming
    Affects Versions: 1.5.0
            Reporter: Chesnay Schepler


The current API for retrieving Side Outputs is a bit ambiguous. Consider the program below:
{code:java}
sideOutput = stream
    .process(...)
    .filter(...)
    .getSideOutput(tag)
{code}

This may be the sideOutput of the process function that is passed through the API for convenience, or the sideOutput of the filter function (which would always be empty).




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