lists/stream_compaction.hpp
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16 #pragma once
17 
18 #include <cudf/column/column.hpp>
20 #include <cudf/utilities/export.hpp>
22 
24 
25 namespace CUDF_EXPORT cudf {
26 namespace lists {
27 
63 std::unique_ptr<column> apply_boolean_mask(
64  lists_column_view const& input,
65  lists_column_view const& boolean_mask,
68 
89 std::unique_ptr<column> distinct(
90  lists_column_view const& input,
91  null_equality nulls_equal = null_equality::EQUAL,
92  nan_equality nans_equal = nan_equality::ALL_EQUAL,
95  // end of group
97 
98 } // namespace lists
99 } // namespace CUDF_EXPORT cudf
Given a column-view of lists type, an instance of this class provides a wrapper on this compound colu...
Class definition for cudf::column.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
std::unique_ptr< column > apply_boolean_mask(lists_column_view const &input, lists_column_view const &boolean_mask, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Filters elements in each row of input LIST column using boolean_mask LIST of booleans as a mask.
std::unique_ptr< column > distinct(lists_column_view const &input, 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())
Create a new list column without duplicate elements in each list.
rmm::device_async_resource_ref get_current_device_resource_ref()
Get the current device memory resource reference.
cuda::mr::async_resource_ref< cuda::mr::device_accessible > device_async_resource_ref
null_equality
Enum to consider two nulls as equal or unequal.
Definition: types.hpp:151
nan_equality
Enum to consider different elements (of floating point types) holding NaN value as equal or unequal.
Definition: types.hpp:143
Class definition for cudf::lists_column_view.
cuDF interfaces
Definition: aggregation.hpp:35