conditional_join.hpp

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/*
 * Copyright (c) 2025, 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/ast/expressions.hpp>
#include <cudf/table/table_view.hpp>
#include <cudf/types.hpp>
#include <cudf/utilities/default_stream.hpp>
#include <cudf/utilities/export.hpp>
#include <cudf/utilities/memory_resource.hpp>
#include <cudf/utilities/span.hpp>
 
#include <rmm/cuda_stream_view.hpp>
#include <rmm/device_uvector.hpp>
 
#include <optional>
#include <utility>
 
namespace CUDF_EXPORT cudf {
 
std::pair<std::unique_ptr<rmm::device_uvector<size_type>>,
          std::unique_ptr<rmm::device_uvector<size_type>>>
conditional_inner_join(table_view const& left,
                       table_view const& right,
                       ast::expression const& binary_predicate,
                       std::optional<std::size_t> output_size = {},
                       rmm::cuda_stream_view stream           = cudf::get_default_stream(),
                       rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
 
std::pair<std::unique_ptr<rmm::device_uvector<size_type>>,
          std::unique_ptr<rmm::device_uvector<size_type>>>
conditional_left_join(table_view const& left,
                      table_view const& right,
                      ast::expression const& binary_predicate,
                      std::optional<std::size_t> output_size = {},
                      rmm::cuda_stream_view stream           = cudf::get_default_stream(),
                      rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
 
std::pair<std::unique_ptr<rmm::device_uvector<size_type>>,
          std::unique_ptr<rmm::device_uvector<size_type>>>
conditional_full_join(table_view const& left,
                      table_view const& right,
                      ast::expression const& binary_predicate,
                      rmm::cuda_stream_view stream      = cudf::get_default_stream(),
                      rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
 
std::unique_ptr<rmm::device_uvector<size_type>> conditional_left_semi_join(
  table_view const& left,
  table_view const& right,
  ast::expression const& binary_predicate,
  std::optional<std::size_t> output_size = {},
  rmm::cuda_stream_view stream           = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr      = cudf::get_current_device_resource_ref());
 
std::unique_ptr<rmm::device_uvector<size_type>> conditional_left_anti_join(
  table_view const& left,
  table_view const& right,
  ast::expression const& binary_predicate,
  std::optional<std::size_t> output_size = {},
  rmm::cuda_stream_view stream           = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr      = cudf::get_current_device_resource_ref());
 
std::size_t conditional_inner_join_size(
  table_view const& left,
  table_view const& right,
  ast::expression const& binary_predicate,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
 
std::size_t conditional_left_join_size(
  table_view const& left,
  table_view const& right,
  ast::expression const& binary_predicate,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
 
std::size_t conditional_left_semi_join_size(
  table_view const& left,
  table_view const& right,
  ast::expression const& binary_predicate,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
 
std::size_t conditional_left_anti_join_size(
  table_view const& left,
  table_view const& right,
  ast::expression const& binary_predicate,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = cudf::get_current_device_resource_ref());
  // end of group
 
}  // namespace CUDF_EXPORT cudf