25 namespace dictionary {
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
A container of nullable device data as a column of elements.
Indicator for the logical data type of an element in a column.
A wrapper class for operations on a dictionary column.
Class definition for cudf::column.
column view class definitions
Class definition for cudf::dictionary_column_view.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
std::unique_ptr< column > encode(column_view const &column, data_type indices_type=data_type{type_id::UINT32}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Construct a dictionary column by dictionary encoding an existing column.
std::unique_ptr< column > decode(dictionary_column_view const &dictionary_column, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Create a column by gathering the keys from the provided dictionary_column into a new column using the...
device_memory_resource * get_current_device_resource()
@ UINT32
4 byte unsigned integer