tustvold commented on issue #5352:
URL: https://github.com/apache/arrow-rs/issues/5352#issuecomment-1919983658

   There is 
https://docs.rs/arrow-data/latest/arrow_data/struct.ArrayData.html#method.get_slice_memory_size
 but if you're only interested in strings you could do something like
   
   ```
   let offsets = array.offsets();
   let total_length = offsets.last().unwrap().as_usize() - 
offsets.first().unwrap().as_usize();
   ```


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