tustvold commented on code in PR #6893:
URL: https://github.com/apache/arrow-rs/pull/6893#discussion_r1890021873


##########
arrow-buffer/src/buffer/offset.rs:
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@@ -162,6 +163,44 @@ impl<O: ArrowNativeType> OffsetBuffer<O> {
     }
 }
 
+impl<O: ArrowNativeType + Integer + Copy> OffsetBuffer<O> {

Review Comment:
   I would recommend a focus on getting something correct and working before 
trying to optimise it, and then when trying to optimise use empirical 
benchmarks.
   
   FWIW I suspect this code will optimise very poorly as a result of the 
dynamic dispatch



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