alamb commented on PR #9897:
URL: 
https://github.com/apache/arrow-datafusion/pull/9897#issuecomment-2032762771

   > thanks @alamb 1 improvement I can see here is we over iterating through 
values. I mean 1 iteration is do identify named/not_named and when creating 
struct/named_struct its another one. prob it can be optimized
   
   I agree it does two iterations over the value. I think the current approach 
basically requires two iterations because if we are doing `named_struct` we 
need to add names for each column that don't have a name.
   
   So in other words, `struct(1, 2, 3 as other_col)` needs to become `struct(1 
as c1, 2 as c2, 3 as other_col)` but we don't know  until we see `3 as 
other_col` that we need to add in `c1` and `c2`) 🤔 
   
   I would like to spend my optimization budget on bigger things initially if 
that is ok (specifically https://github.com/apache/arrow-datafusion/issues/9637)


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