userver: userver/storages/postgres/null.hpp File Reference
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null.hpp File Reference

Detailed Description

NULL type.

Definition in file null.hpp.

Go to the source code of this file.

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

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.