TisonKun edited a comment on issue #9820: [FLINK-14290] Decouple plan translation from job execution/ClusterClient URL: https://github.com/apache/flink/pull/9820#issuecomment-539386039 Thanks for your ideas on FLINK-14263 and FLINK-14130 @aljoscha . For the issue about `FlinkPlan`, let's revisit the inheritance tree now. We have ``` FlinkPlan - OptimizedPlan - StreamingPlan - StreamGraph ``` Where `OptimizedPlan` is an instanced class while `StreamingPlan` is an interface, and the "unified interface" `FlinkPlan` is a tag interface. now with this pull request we have ``` Pipeline - Plan - StreamGraph(inherited from StreamingPlan) ``` and two versions of `PipelineTranslator`. Since `FlinkPlan` is actually a temporary class from batch `Plan` and streaming `StreamGraph` to `JobGraph` and we now have `PipelineTranslator`, I think we can both 1. merge `StreamingPlan` into `StreamGraph` and let `Pipeline` be the unified interface. 2. remove `FlinkPlan`, hide `OptimizedPlan` inside `PlanTranslator` and let it be a more internal concept.
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