LuciferYang opened a new pull request #30484:
URL: https://github.com/apache/spark/pull/30484


   ### What changes were proposed in this pull request?
   There are two places in Spark to call the 
`SpecificParquetRecordReaderBase.initialize(InputSplit, taskAttemptContext)` 
method, one is in ParquetFileFormat and the other one is in 
ParquetPartitionReaderFactory, the "inputSplit.rowGroupOffsets" passed in to 
the `initialize` method both `null`, it seems that the branch of 
"rowgroupoffsets! = null" is useless.
   
   So this is pr remove this branch.
   
   ### Why are the changes needed?
   Remove a unreachable branch to simplify code.
   
   
   ### Does this PR introduce _any_ user-facing change?
   No
   
   
   ### How was this patch tested?
   Pass the Jenkins or GitHub Action
   


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