[GitHub] [flink] HuangZhenQiu opened a new pull request #10484: [FLINK-14906][table] create and drop temp system functions from DDL t…

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HuangZhenQiu opened a new pull request #10484: [FLINK-14906][table] create and drop temp system functions from DDL t…
URL: https://github.com/apache/flink/pull/10484
 
 
   ## What is the purpose of the change
   
   Support create and drop temp system functions from DDL to FunctionCatalog with function ddl.
   
   ## Brief change log
   
   - Create and Drop temporary system functions for both stream and batch
   - Add test cases in CatalogFunctionITCase for both planner and blink planner
   
   ## Verifying this change
   
   The features is covered in CatalogFunctionITCases
   
   ## 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: (o)
     - The runtime per-record code paths (performance sensitive): (no)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, 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 documented)
   

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