Re: [I] [C++] ListArray's Flatten function should support recursive flattening of nested lists [arrow]

["felipecrv (via GitHub)" <gi...@apache.org>]

felipecrv commented on issue #41055:
URL: https://github.com/apache/arrow/issues/41055#issuecomment-2043592891

   > Users need to flatten nested list-arrays( list(list(int32)) ), and then the upper layer needs to implement recursive flatten, which seems inconvenient for them.
   
   Right. But we can't change the behavior of existing `Flatten` to go recursive, but we can add a version that works recursively (and is not naively doing successive concatenations). And yes, it would treat all of `(Large)?List(View)?` as logical lists that need to be flattened until a non-list-like type is reached.


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