count_elements.hpp
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16 #pragma once
17 
18 #include <cudf/column/column.hpp>
20 
21 #include <rmm/mr/device/per_device_resource.hpp>
22 #include <rmm/resource_ref.hpp>
23 
24 namespace cudf {
25 namespace lists {
53 std::unique_ptr<column> count_elements(
54  lists_column_view const& input,
55  rmm::cuda_stream_view stream = cudf::get_default_stream(),
56  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
57  // end of lists_elements group
59 
60 } // namespace lists
61 } // namespace 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=rmm::mr::get_current_device_resource())
Returns a numeric column containing the number of rows in each list element in the given lists column...
Class definition for cudf::lists_column_view.
cuDF interfaces
Definition: aggregation.hpp:34