rdettai commented on pull request #1010:
URL: https://github.com/apache/arrow-datafusion/pull/1010#issuecomment-926014564


   > I may get this wrong if you are not implying it's possible that a table 
can have its data in different file formats in the original doc
   
   I was not implying anything! 😄  I just didn't have an example in mind. 
Thanks for the pointers! I think that handling these cases will require 
creating dedicated `ExecutionPlan`s and do some further refactoring of the 
execution plan to allow re-utilization of the file format specific code.
   
   > But I what really want to argue is: why should we use diff manually and 
leave git diff away?
   
   I do know that git history is very important, I am not arguing that 😃. Do we 
all agree that we should directly replace the old implementations in this PR, 
even if it means that we will need to modify a large part of the code base at 
once? Does someone have a better split for this PR in mind?
   
   PS: just opened a new 
[branch](https://github.com/rdettai/arrow-datafusion/tree/refacto-providers-store)
 with the addition of the `ObjectStore`. I will pull it into this one once (and 
if) I am satisfied with the result.
   
   


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