[GitHub] [arrow] AlenkaF commented on issue #11799: arrow::compute `hash_*` functions matching input types

[GitBox <gi...@apache.org>]

AlenkaF commented on issue #11799:
URL: https://github.com/apache/arrow/issues/11799#issuecomment-983379697


   What I mean is that it should work in C++ also if not called directly. Here I am not of much help but would maybe try with something like:
   
   ```
   arrow::compute::CountOptions all(arrow::compute::CountOptions::ALL);
   auto res =
       arrow::compute::internal::GroupBy({array}, {arrayKey}, {{"hash_count", &all}}, false);
   ```


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