SteNicholas opened a new pull request #14742:
URL: https://github.com/apache/flink/pull/14742
## What is the purpose of the change
*The configuration `parallelism.default` for table environment doesn't take
effect for `TableEnvironment#explain`. Because `PlannerBase#translateToRel`
doesn't invoke `overrideEnvParallelism` which configures the configuration into
underlying `StreamExecutionEnvironment` and is invoked in `translate`. Method
`overrideEnvParallelism` should be invoked in `translateToRel` and removed from
`translate`.*
## Brief change log
- *`PlannerBase#translateToRel` invokes the method
`overrideEnvParallelism` which configures the configuration into underlying
`StreamExecutionEnvironment`.*
## Verifying this change
- *Modify `testStreamTableEnvironmentExecutionExplain` of
`TableEnvironmentTest` to verify the test case whether the configuration
`parallelism.default` takes effect in `TableEnvironment#explainSql` or not.*
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (yes / **no** /
don't know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (**not applicable** / docs /
JavaDocs / not documented)
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