zeroshade opened a new pull request, #39772:
URL: https://github.com/apache/arrow/pull/39772

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   ### Rationale for this change
   Right now our MemoryManager interfaces operate solely at the buffer level 
and we do not provide any higher level facilities to copy an entire array or 
record batch between memory types. We should implement CopyArrayTo and 
CopyBatchTo functions which recursively utilize the buffer level copying to 
create a new Array/RecordBatch whose buffers have been copied to the 
destination memory manager.
   
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   ### What changes are included in this PR?
   Exposing a `CopyArrayTo` and `CopyBatchTo` function for copying entire Array 
or RecordBatches between memory types.
   
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   ### Are these changes tested?
   Tests are still being written but will be added.
   
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