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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/05/14 02:14:31 UTC

[GitHub] [arrow-rs] Jimexist commented on a change in pull request #275: Add nullary function and some unit tests

Jimexist commented on a change in pull request #275:
URL: https://github.com/apache/arrow-rs/pull/275#discussion_r632228845



##########
File path: arrow/src/compute/kernels/arity.rs
##########
@@ -72,3 +73,37 @@ where
     let data = into_primitive_array_data::<_, O>(array, buffer);
     PrimitiveArray::<O>::from(data)
 }
+
+/// Applies a nullary and infalible function to generate a primitive array.
+/// You should use this instead of the vectorized version when each generated value is different.
+pub fn nullary<F, O>(size: usize, op: F) -> PrimitiveArray<O>

Review comment:
       happy to close this PR if not needed.




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