tustvold commented on issue #6846:
URL: https://github.com/apache/arrow-rs/issues/6846#issuecomment-2525660057

   If the types are known statically one can use the builder APIs
   
   
https://docs.rs/arrow-array/latest/arrow_array/builder/index.html#nested-usage
   
   If the types are not known statically, it gets much more complicated and 
will require evaluating the filter predicate on the List::values and then using 
this in combination with the selection kernels to construct a new ListArray.
   
   As a ListArray isn't stored as a list of arrays, there isn't an efficient 
way to "collect" an iterator of arrays


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