tustvold opened a new issue, #7352:
URL: https://github.com/apache/arrow-datafusion/issues/7352

   ### Is your feature request related to a problem or challenge?
   
   Currently ScalarValue::List stores a `Vec<Option<ScalarValue>>`. This is 
incredibly inefficient as it stores nullability and type information per nested 
value. It also makes the type very cumbersome to use, as the data cannot easily 
be fed into the normal array kernels.
   
   ### Describe the solution you'd like
   
   I would like to change the type of ScalarValue::List to store ArrayRef
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Additional context
   
   _No response_


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