set_operations.hpp
前往此文件的文档。
1 /*
2  * Copyright (c) 2022-2024, NVIDIA CORPORATION.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
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8  * https://apache.ac.cn/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
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12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 #include <cudf/column/column.hpp>
21 #include <cudf/types.hpp>
23 
25 
26 namespace CUDF_EXPORT cudf {
27 namespace lists {
61 std::unique_ptr<column> have_overlap(
62  lists_column_view const& lhs,
63  lists_column_view const& rhs,
64  null_equality nulls_equal = null_equality::EQUAL,
65  nan_equality nans_equal = nan_equality::ALL_EQUAL,
68 
98 std::unique_ptr<column> intersect_distinct(
99  lists_column_view const& lhs,
100  lists_column_view const& rhs,
101  null_equality nulls_equal = null_equality::EQUAL,
102  nan_equality nans_equal = nan_equality::ALL_EQUAL,
105 
135 std::unique_ptr<column> union_distinct(
136  lists_column_view const& lhs,
137  lists_column_view const& rhs,
138  null_equality nulls_equal = null_equality::EQUAL,
139  nan_equality nans_equal = nan_equality::ALL_EQUAL,
142 
172 std::unique_ptr<column> difference_distinct(
173  lists_column_view const& lhs,
174  lists_column_view const& rhs,
175  null_equality nulls_equal = null_equality::EQUAL,
176  nan_equality nans_equal = nan_equality::ALL_EQUAL,
179  // end of group
181 } // namespace lists
182 } // namespace CUDF_EXPORT cudf
给定一个列表类型的列视图,此类的实例提供了对此复合列的封装...
cudf::column 的类定义。
rmm::cuda_stream_view const get_default_stream()
获取当前的默认流。
rmm::device_async_resource_ref get_current_device_resource_ref()
获取当前的设备内存资源引用。
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
std::unique_ptr< column > difference_distinct(lists_column_view const &lhs, lists_column_view const &rhs, null_equality nulls_equal=null_equality::EQUAL, nan_equality nans_equal=nan_equality::ALL_EQUAL, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
创建一个仅在左输入列中找到的去重元素的列表列。
std::unique_ptr< column > intersect_distinct(lists_column_view const &lhs, lists_column_view const &rhs, null_equality nulls_equal=null_equality::EQUAL, nan_equality nans_equal=nan_equality::ALL_EQUAL, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
创建一个包含两个输入列表列中共有去重元素的列表列。
std::unique_ptr< column > union_distinct(lists_column_view const &lhs, lists_column_view const &rhs, null_equality nulls_equal=null_equality::EQUAL, nan_equality nans_equal=nan_equality::ALL_EQUAL, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
创建一个包含两个输入列表列中任一列中去重元素的列表列。
std::unique_ptr< column > have_overlap(lists_column_view const &lhs, lists_column_view const &rhs, null_equality nulls_equal=null_equality::EQUAL, nan_equality nans_equal=nan_equality::ALL_EQUAL, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
检查给定列表列的每一行中的列表是否重叠。
null_equality
一个枚举,用于将两个空值视为相等或不相等。
定义: types.hpp:151
nan_equality
一个枚举,用于将持有 NaN 值的不同元素(浮点类型)视为相等或不相等。
定义: types.hpp:143
Class definition for cudf::lists_column_view.
cuDF 接口
定义: host_udf.hpp:37
libcudf 的类型声明。