JingsongLi opened a new pull request #10730: [FLINK-14802][orc][hive] Multi 
vectorized read version support for hive orc read
URL: https://github.com/apache/flink/pull/10730
 
 
   
   ## What is the purpose of the change
   
   The vector api of Hive 1.x version are totally different from hive 2+.
   So we need introduce more efforts to support vectorized read for hive 1.x.
   
   ## Brief change log
   
   - Introduce flink-orc-nohive module
   - Introduce orc vectors
   - Introduce NoHiveOrcShim
   - Introduce nohive orc OrcSplitReaderUtil
   - Integrate hive to flink-orc-nohive
   
   ## Verifying this change
   
   This change is already covered by existing tests.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): yes
     - 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): yes
     - 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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