Method Lineitem

cpp/src/arrow/acero/tpch_node.cc:3513–3522

}

Result<ExecNode*> TpchGenImpl::Lineitem(std::vector<std::string> columns) {
  if (!orders_and_line_item_generator_) {
    orders_and_line_item_generator_ = std::make_shared<OrdersAndLineItemGenerator>();
  }
  std::unique_ptr<LineitemGenerator> generator =
      std::make_unique<LineitemGenerator>(orders_and_line_item_generator_);
  RETURN_NOT_OK(generator->Init(std::move(columns), scale_factor_, batch_size_,
                                kSeedDist(seed_rng_)));
  return plan_->EmplaceNode<TpchNode>(plan_, "Lineitem", std::move(generator));
}

Result<ExecNode*> TpchGenImpl::Nation(std::vector<std::string> columns) {
  return CreateNode<NationGenerator>("Nation", std::move(columns));