twalthr opened a new pull request #10781: [FLINK-15281][table-planner-blink] 
Map Flink's TypeInference to Calcite's interfaces
URL: https://github.com/apache/flink/pull/10781
 
 
   ## What is the purpose of the change
   
   This PR connects Flink's new type inference to Calcite's type inference. It 
ensures that both Table API and SQL have exactly the same behavior and similar 
exception messages.
   
   Note: This PR does not contain tests yet. They will be added as part of 
FLINK-15487 for testing end-to-end functionality.
   
   ## Brief change log
   
   - Implementation of `SqlFunction` and `SqlAggFunction`
   
   ## Verifying this change
   
   Manually verified until code generation with some additional changes that 
will be part of FLINK-15487.
   
   ## 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, Yarn/Mesos, ZooKeeper: no
     - The S3 file system connector: no
   
   ## Documentation
   
     - Does this pull request introduce a new feature? yes
     - If yes, how is the feature documented? JavaDocs
   

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