count_elements.hpp
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16 #pragma once
17 
18 #include <cudf/column/column.hpp>
20 #include <cudf/utilities/export.hpp>
22 
23 namespace CUDF_EXPORT cudf {
24 namespace lists {
52 std::unique_ptr<column> count_elements(
53  lists_column_view const& input,
56  // end of lists_elements group
58 
59 } // namespace lists
60 } // 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 > count_elements(lists_column_view const &input, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Returns a numeric column containing the number of rows in each list element in the given lists column...
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
Class definition for cudf::lists_column_view.
cuDF interfaces
Definition: aggregation.hpp:35