godfreyhe opened a new pull request #10291: [FLINK-14899] [table-planner-blink] 
Fix unexpected plan when PROCTIME() is defined in query
URL: https://github.com/apache/flink/pull/10291
 
 
   
   ## What is the purpose of the change
   
   * currently,  `SELECT * (SELECT *, ROW_NUMBER() OVER (ORDER BY PROCTIME() 
ASC) as rowNum FROM MyTable) WHERE rowNum = 1` will be translated to 
StreamExecRank, while StreamExecDeduplicate is the expected operator. The 
reason is: PROCTIME type is materialized to Timestamp type in 
RelTimeIndicatorConverter. *
   
   
   ## Brief change log
   
     - *return original call when meeting PROCTIME instead of 
PROCTIME_MATERIALIZE in RexTimeIndicatorMaterializer*
     - *add related tests*
   
   
   ## Verifying this change
   
   
   This change added tests and can be verified as follows:
   
     - *Added related tests to verify the fix*
   
   ## 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, 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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