jayzhan211 commented on issue #11745:
URL: https://github.com/apache/datafusion/issues/11745#issuecomment-2266330803

   I think it is worth to figure out the efficient way to deal with nested 
schema on arrow side. https://github.com/apache/datafusion/issues/2581. Then it 
will be clear how we could leverage on it. We might not need `scan_deep` hash 
map at the end 🤔


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