Extracting

Files
file	datetime.hpp
	DateTime column APIs.

Enumerations
enum class	cudf::datetime::datetime_component : uint8_t {   YEAR , MONTH , DAY , WEEKDAY ,   HOUR , MINUTE , SECOND , MILLISECOND ,   MICROSECOND , NANOSECOND }
	Types of datetime components that may be extracted.

Functions
std::unique_ptr< cudf::column >	cudf::datetime::extract_datetime_component (cudf::column_view const &column, datetime_component component, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
	Extracts the specified datetime component from any datetime type and returns an int16_t cudf::column. More...

Detailed Description

Function Documentation

extract_datetime_component()

std::unique_ptr<cudf::column> cudf::datetime::extract_datetime_component	(	cudf::column_view const &	column,
		datetime_component	component,
		rmm::cuda_stream_view	stream = cudf::get_default_stream(),
		rmm::device_async_resource_ref	mr = cudf::get_current_device_resource_ref()
	)

Extracts the specified datetime component from any datetime type and returns an int16_t cudf::column.

Parameters

column	cudf::column_view of the input datetime values
component	The datetime component to extract
stream	CUDA stream used for device memory operations and kernel launches
mr	Device memory resource used to allocate device memory of the returned column

Returns

cudf::column of the extracted int16_t datetime component

Exceptions

cudf::logic_error

if input column datatype is not TIMESTAMP