[I] [C++] Improving FlattenRecursively by making it create intermediate array values [arrow]

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

ZhangHuiGui opened a new issue, #41182:
URL: https://github.com/apache/arrow/issues/41182

   ### Describe the enhancement requested
   
   Improving the implementation of  `FlattenRecursively` function by making it create less intermediate array values.
   
   This function is used to flatten a multi-level nested LogicalList Array. This function can be further optimized: for example, the non-recursive version is directly called when depth==1 or it can be flattened more efficiently for some special cases.
   
   Comes from : https://github.com/apache/arrow/pull/41092#discussion_r1558121668
   
   ### Component(s)
   
   C++


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Re: [I] [C++] Improve FlattenRecursively by making it materialize fewer intermediate array values [arrow]

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

ZhangHuiGui commented on issue #41182:
URL: https://github.com/apache/arrow/issues/41182#issuecomment-2053981486

   In this task, we can also add a micro-benchmark to ensure that our subsequent optimization is effective.


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