[GitHub] [arrow] wesm commented on pull request #7143: ARROW-8504: [C++] Add BitRunReader and use it in parquet

[GitBox]

wesm commented on pull request #7143:
URL: https://github.com/apache/arrow/pull/7143#issuecomment-648446373


   I'm able to reproduce the error in VS and set breakpoints, I got this far to 
see that GetBatchWithDictSpaced has decoded more values than it was asked to
   
   
![image](https://user-images.githubusercontent.com/329591/85467944-6e9df900-b571-11ea-82f8-5f7efade8f2e.png)
   


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