maartenbreddels commented on pull request #7593:
URL: https://github.com/apache/arrow/pull/7593#issuecomment-652263794


   While at the difficult topic of naming, is there a conversion (agreed or 
emerging) for naming the functors/ArrayKernelExec implementations? I see in 
`scalar_string.cc` we use Transform, which is probably redundant (as I 
understand scalar kernels basically map/transform elementwise). But I think it 
would be useful to include the type name, e.g.
    * Utf8ToUtf8 (which is now Utf8Transform) (hence `Utf8Upper : 
Utf8ToUtf8<Type, Utf8Upper<Type>>`)
    * Utf8ToBool / Utf8Predicate (which is now StringBoolTransform)
    * Utf8ToScalar
    * BinaryToBool


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