null.hpp File Reference

Table of Contents

• Classes
• Namespaces
• Variables
• Detailed Description

NULL type. More...

#include <userver/storages/postgres/io/nullable_traits.hpp>
#include <userver/storages/postgres/io/traits.hpp>
#include <userver/storages/postgres/io/type_mapping.hpp>

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Classes
struct	storages::postgres::Null< T >
	Type to represent a null value. More...
struct	storages::postgres::io::traits::IsNullable< Null< T > >
struct	storages::postgres::io::traits::GetSetNull< Null< T > >
struct	storages::postgres::io::traits::IsMappedToPg< Null< T > >
struct	storages::postgres::io::traits::IsSpecialMapping< Null< T > >
struct	storages::postgres::io::CppToPg< Null< T > >
struct	storages::postgres::io::BufferFormatter< Null< T > >

Namespaces
namespace	storages
	Components, clients and helpers for different databases and storages.
namespace	storages::postgres
	Top namespace for uPg driver.
namespace	storages::postgres::io
	uPg input-output.
namespace	storages::postgres::io::traits
	uPg input-output traits.

Variables
template<typename T >
constexpr Null< T >	storages::postgres::null {}
	Template variable to use with query parameters.

Detailed Description

NULL type.

Definition in file null.hpp.