libcudf  23.12.00
lists/stream_compaction.hpp
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16 #pragma once
17 
18 #include <cudf/column/column.hpp>
20 
23 
24 namespace cudf::lists {
25 
61 std::unique_ptr<column> apply_boolean_mask(
62  lists_column_view const& input,
63  lists_column_view const& boolean_mask,
66 
87 std::unique_ptr<column> distinct(
88  lists_column_view const& input,
89  null_equality nulls_equal = null_equality::EQUAL,
93  // end of group
95 
96 } // namespace cudf::lists
Given a column-view of lists type, an instance of this class provides a wrapper on this compound colu...
Class definition for cudf::column.
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::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
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::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Create a new list column without duplicate elements in each list.
device_memory_resource * get_current_device_resource()
null_equality
Enum to consider two nulls as equal or unequal.
Definition: types.hpp:135
nan_equality
Enum to consider different elements (of floating point types) holding NaN value as equal or unequal.
Definition: types.hpp:127
@ EQUAL
nulls compare equal
@ ALL_EQUAL
All NaNs compare equal, regardless of sign.
Class definition for cudf::lists_column_view.
Lists column APIs.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.