alamb commented on issue #9672:
URL: 
https://github.com/apache/arrow-datafusion/issues/9672#issuecomment-2016454379

   > But dataframe in Datafusion is of a LogicalPlan, so I think it maybe 
different and looks more like a logical one? 🤔
   
   That does sound correct.
   
   Or maybe the only way to implement "add_column" would be to actually execute 
the he DataFrame (aka 
https://docs.rs/datafusion/latest/datafusion/dataframe/struct.DataFrame.html#method.collect)
 and then append the column's data to the resulting record batch
   
   However, that API sounds somewhat specialized -- and I am not sure it make 
sense
   
   So maybe this request doesn't make sense and we should close the issue 🤔 


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