dxe4 commented on issue #18431:
URL: https://github.com/apache/arrow/issues/18431#issuecomment-1423087497

   hi, i was profiling this and i spotted that in `pyarrow/array.pxi` 
deduplicate_objects has a default value set to true but the docs say its false. 
so what is the expected default?
   
   
https://github.com/apache/arrow/blob/fc1f9ebbc4c3ae77d5cfc2f9322f4373d3d19b8a/python/pyarrow/array.pxi#L724
   
https://github.com/apache/arrow/blob/fc1f9ebbc4c3ae77d5cfc2f9322f4373d3d19b8a/python/pyarrow/array.pxi#L690
   
   the memory goes down when its false.
   
   
![no_dup@2x](https://user-images.githubusercontent.com/4346513/217624577-85f7249b-cb7c-4620-b013-f23e36fe05b1.png)
   
![duplicate@2x](https://user-images.githubusercontent.com/4346513/217624585-33b7916e-7ec8-4e19-ab10-f6be093a10f6.png)
   
   


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