iceberg::MonthTransform Class Reference

Month transform that extracts the number of months from timestamp inputs since the epoch. More...

#include <transform_function.h>

Inheritance diagram for iceberg::MonthTransform:

Public Member Functions
	MonthTransform (std::shared_ptr< Type > const &source_type)
Result< Literal >	Transform (const Literal &literal) override
	Extract a date or timestamp month, as months from 1970-01-01.
std::shared_ptr< Type >	ResultType () const override
	Returns INT32 as the output type.
Public Member Functions inherited from iceberg::TransformFunction
	TransformFunction (TransformType transform_type, std::shared_ptr< Type > source_type)
TransformType	transform_type () const
	Get the transform type.
const std::shared_ptr< Type > &	source_type () const
	Get the source type of transform function.

Static Public Member Functions
static Result< std::unique_ptr< TransformFunction > >	Make (std::shared_ptr< Type > const &source_type)
	Create a MonthTransform.

Detailed Description

Month transform that extracts the number of months from timestamp inputs since the epoch.

Constructor & Destructor Documentation

MonthTransform()

iceberg::MonthTransform::MonthTransform ( std::shared_ptr< Type > const &  source_type )

explicit

Parameters

source_type

Must be a timestamp type.

Member Function Documentation

Make()

Result< std::unique_ptr< TransformFunction > > iceberg::MonthTransform::Make ( std::shared_ptr< Type > const &  source_type )

static

Create a MonthTransform.

Parameters

source_type

Type of the input data.

Returns

A Result containing the MonthTransform or an error.

ResultType()

std::shared_ptr< Type > iceberg::MonthTransform::ResultType ( ) const

overridevirtual

Returns INT32 as the output type.

Implements iceberg::TransformFunction.

Transform()

Result< Literal > iceberg::MonthTransform::Transform ( const Literal &  literal )

overridevirtual

Extract a date or timestamp month, as months from 1970-01-01.

Implements iceberg::TransformFunction.

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The documentation for this class was generated from the following files:

• iceberg/transform_function.h
• iceberg/transform_function.cc