godfreyhe opened a new pull request #14417:
URL: https://github.com/apache/flink/pull/14417
## What is the purpose of the change
*Currently, we introduce ExecGraphGenerator to translate a graph of
FlinkPhysicalRel to a ExecNode graph. While as more and more ExecNode
supported, ExecGraphGenerator is hard to maintain. So we introduce
FlinkPhysicalRel#translateToExecNode to create specific ExecNode in each
physical RelNode, and ExecGraphGenerator is used to build the whole graph based
on the translated ExecNode, including connecting the input/output nodes,
handling the rel visitor, handle some special nodes (such as, Exchange), etc.*
## Brief change log
- *Introduce translateToExecNode method for FlinkPhysicalRel*
- *ExecGraphGenerator does not create ExecNode any more*
- *add setInputNodes method for ExecNodeBase, which could help
ExecGraphGenerator building ExecNode graph before ExecEdge supports
`source`/`target`*
## Verifying this change
This change is a refactoring rework covered by existing tests.
## 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**)
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
