update_keys.hpp File Reference

APIs for adding, removing, and matching the keys of dictionary columns. More...

#include <cudf/column/column.hpp>
#include <cudf/dictionary/dictionary_column_view.hpp>
#include <cudf/utilities/memory_resource.hpp>
#include <cudf/utilities/span.hpp>
#include <span>

Go to the source code of this file.

Namespaces
	cudf
	cuDF interfaces
	cudf::dictionary
	Dictionary column APIs.

Functions
std::unique_ptr< column >	cudf::dictionary::add_keys (dictionary_column_view const &dictionary_column, column_view const &new_keys, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
	Create a new dictionary column by adding the new keys elements to the existing dictionary_column. More...
std::unique_ptr< column >	cudf::dictionary::remove_keys (dictionary_column_view const &dictionary_column, column_view const &keys_to_remove, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
	Create a new dictionary column by removing the specified keys from the existing dictionary_column. More...
std::unique_ptr< column >	cudf::dictionary::remove_unused_keys (dictionary_column_view const &dictionary_column, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
	Create a new dictionary column by removing any keys that are not referenced by any of the indices. More...
std::unique_ptr< column >	cudf::dictionary::set_keys (dictionary_column_view const &dictionary_column, column_view const &keys, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
	Create a new dictionary column by applying only the specified keys to the existing dictionary_column. More...
std::vector< std::unique_ptr< column > >	cudf::dictionary::match_dictionaries (std::span< dictionary_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())
	Create new dictionaries that have keys merged from the input dictionaries. More...

Detailed Description

APIs for adding, removing, and matching the keys of dictionary columns.

Definition in file update_keys.hpp.