alamb commented on issue #8379:
URL: 
https://github.com/apache/arrow-datafusion/issues/8379#issuecomment-1848397771

   > Maybe after/as part of implementing this, Datafusion should relax that 
restriction?
   
   One challenge is that most of the arrow-rs functionality in RecordBatch, for 
example, assumes unique column names (`find_by_name` for example). I don't 
think the Arrow spec itself restricts names to be unique, but I think the 
assumption may run pretty deep in the implementations


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