Function AddScalarAggKernels

cpp/src/arrow/compute/kernels/aggregate_basic.cc:858–866

namespace {

void AddScalarAggKernels(KernelInit init,
                         const std::vector<std::shared_ptr<DataType>>& types,
                         std::shared_ptr<DataType> out_ty,
                         ScalarAggregateFunction* func) {
  for (const auto& ty : types) {
    auto sig = KernelSignature::Make({ty->id()}, out_ty);
    AddAggKernel(std::move(sig), init, func, SimdLevel::NONE);
  }
}

void AddArrayScalarAggKernels(KernelInit init,
                              const std::vector<std::shared_ptr<DataType>>& types,