[GitHub] twalthr opened a new pull request #6725: [FLINK-10263] [sql-client] Fix classloader issues in SQL Client

[GitBox <gi...@apache.org>]

twalthr opened a new pull request #6725: [FLINK-10263] [sql-client] Fix classloader issues in SQL Client
URL: https://github.com/apache/flink/pull/6725
 
 
   ## What is the purpose of the change
   
   Fixes classloading issues when using a UDF with constant parameters. Every
   optimization might need to compile code (i.e. for constant folding), thus,
   needs access to the user-code classloader.
   
   ## Brief change log
   
   Set SQL Client's execution context class loader as thread classloader and use it for constant folding.
   
   ## Verifying this change
   
   End-to-end test has been extended.
   
   ## 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? no
     - If yes, how is the feature documented? not applicable
   

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