encode.hpp
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16 #pragma once
17 
18 #include <cudf/column/column.hpp>
21 
23 
24 namespace cudf {
25 namespace dictionary {
60 std::unique_ptr<column> encode(
61  column_view const& column,
62  data_type indices_type = data_type{type_id::UINT32},
65 
81 std::unique_ptr<column> decode(
82  dictionary_column_view const& dictionary_column,
85  // end of group
87 } // namespace dictionary
88 } // namespace cudf
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.
Definition: column.hpp:48
Indicator for the logical data type of an element in a column.
Definition: types.hpp:241
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
cuDF interfaces
Definition: aggregation.hpp:34