merge.hpp

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/*
 * Copyright (c) 2018-2024, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <cudf/types.hpp>
#include <cudf/utilities/export.hpp>
 
#include <rmm/mr/device/per_device_resource.hpp>
#include <rmm/resource_ref.hpp>
 
#include <memory>
#include <vector>
 
namespace CUDF_EXPORT cudf {
std::unique_ptr<cudf::table> merge(
  std::vector<table_view> const& tables_to_merge,
  std::vector<cudf::size_type> const& key_cols,
  std::vector<cudf::order> const& column_order,
  std::vector<cudf::null_order> const& null_precedence = {},
  rmm::cuda_stream_view stream                         = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr                    = rmm::mr::get_current_device_resource());  // end of group
}  // namespace CUDF_EXPORT cudf