Function PivotInit

cpp/src/arrow/compute/kernels/aggregate_pivot.cc:157–166

};

Result<std::unique_ptr<KernelState>> PivotInit(KernelContext* ctx,
                                               const KernelInitArgs& args) {
  const auto& options = checked_cast<const PivotWiderOptions&>(*args.options);
  auto state = std::make_unique<PivotImpl>();
  RETURN_NOT_OK(state->Init(options, args.inputs, ctx->exec_context()));
  // GH-45718: This can be simplified once we drop the R openSUSE155 crossbow
  // job
  // R build with openSUSE155 requires an explicit shared_ptr construction
  return std::unique_ptr<KernelState>(std::move(state));
}

Result<TypeHolder> ResolveOutputType(KernelContext* ctx, const std::vector<TypeHolder>&) {
  return checked_cast<PivotImpl*>(ctx->state())->out_type();