alamb commented on pull request #2063:
URL: 
https://github.com/apache/arrow-datafusion/pull/2063#issuecomment-1076745055


   >  We lost filters and projections in ParquetExec, lost projections in 
CSVExec, etc. What do you think if we include these missing parts for physical 
scan operators as well?
   
   
   I don't fully understand what you are suggesting here @yjshen  -- are you 
suggesting:
   1. That this PR loses some information? 
   2. A follow on PR to add more information to the `ParquetExec` would be 
helpful? 
   3. Something else?
   
   Thanks again @Ted-Jiang  -- this looks very helpful to avoid confusion


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