MasonMa-sy opened a new pull request #17146:
URL: https://github.com/apache/flink/pull/17146


   ## What is the purpose of the change
   
   Compared with the Java sample, batch.size in the implementation of 
vectorizer in scala cannot be increased. As a result, the generated Orc file 
has no data. 
   
   
   ## Brief change log
   
     - *fix content and content.zh*
   
   
   ## Verifying this change
   
   Not needed.
   
   ## 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
   
     - This is a document change.
   


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