Commits
Wes McKinney authored and Antoine Pitrou committed e1c3334d548
ARROW-6775: [C++][Python] Implement list_value_lengths and list_parent_indices functions This adds two functions that operate on list types: * list_value_lengths: returns an int32 (for List) or int64 (for LargeList) array with the number of elements in each list value slot * list_parent_indices: returns an int32/int64 array with the same length as the child values array of a List type where each value is the index of the list "slot" containing each child value Closes #7632 from wesm/some-list-functions Lead-authored-by: Wes McKinney <wesm@apache.org> Co-authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Antoine Pitrou <antoine@python.org>