beyond1920 opened a new pull request #16739:
URL: https://github.com/apache/flink/pull/16739


   ## What is the purpose of the change
   
   This pr aims to materialize attribute fields of regular join's inputs.
   
   
   ## Brief change log
   
   *(for example:)*
     - Update `RelTimeIndicatorConveter#visitJoin` to materialize attribute 
fields of regular join's inputs.
     - Extract  utility method:`satisfyIntervalJoin`, `satisfyRegularJoin`, 
`satisfyTemporalJoin` to check whether the given join satisfy the conditions to 
convert to the specified physical join node.
     - Refactor `matches` method of 
`StreamPhysicalIntervalJoinRule`,`StreamPhysicalJoinRule`,`StreamPhysicalTemporalJoinRule`
 based on the above utility method.
   
   ## Verifying this change
     - Update the tests in `WindowJoinTest` which fallback to the regular join 
because they don't satisfy the condition to convert to window join. In the 
previous version, if the input contains time attributes, exception would be 
thrown out.
     - Some cases in `IntervalJoinTest` which fallback to the regular join 
because they don't satisfy the condition to convert to interval join. In the 
previous version, if the input contains time attributes, exception would be 
thrown out.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
     - The S3 file system connector: (no)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (no)
     - If yes, how is the feature documented? (not applicable)
   


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