[jira] [Created] (FLINK-3835) JSON execution plan not helpful to debug plans with KeySelectors

[Shang Yuanchun (Jira)]

Fabian Hueske created FLINK-3835:
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             Summary: JSON execution plan not helpful to debug plans with KeySelectors
                 Key: FLINK-3835
                 URL: https://issues.apache.org/jira/browse/FLINK-3835
             Project: Flink
          Issue Type: Bug
          Components: Optimizer
    Affects Versions: 1.0.2, 1.1.0
            Reporter: Fabian Hueske
            Assignee: Fabian Hueske
             Fix For: 1.1.0, 1.0.3


The JSON execution plans are not helpful when debugging plans that include join operators with key selectors. For joins with hash join strategy, the driver strategy shows: {{"Hybrid Hash (build: Key Extractor)"}} where {{(build: Key Extractor)}} shall help to identify the build side of the join. However, if both inputs use KeySelectors, the build side cannot be identified.

I propose to add the operator id to the build side information. The same issue applied for cross driver strategies.



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