cudf::groupby::scan_request Struct Reference

Request for groupby aggregation(s) for scanning a column. More...

#include <groupby.hpp>

Public Attributes
column_view	values
	The elements to aggregate.
std::vector< std::unique_ptr< groupby_scan_aggregation > >	aggregations
	Desired aggregations.

Detailed Description

Request for groupby aggregation(s) for scanning a column.

The group membership of each value[i] is determined by the corresponding row i in the original order of keys used to construct the groupby. I.e., for each aggregation, values[i] is aggregated with all other values[j] where rows i and j in keys are equivalent.

values.size() column must equal keys.num_rows().

Definition at line 75 of file groupby.hpp.

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The documentation for this struct was generated from the following file:

• groupby.hpp