Optional is a type scan destination of optional ydb values Optional must be a double pointer value destination This is a proxy type for preparing go1.18 type set constrains such as type Optional interface { **int8 | **int64 | **string | types.Scanner | json.Unmarshaler } or alias such as type Optional *Required.

Required is a type scan destination of non-optional ydb values Required must be a single pointer value destination This is a proxy type for preparing go1.18 type set constrains such as type Required interface { *int8 | *int64 | *string | types.Scanner | json.Unmarshaler }.

RequiredOrOptional is a type scan destination of ydb values This is a proxy type for preparing go1.18 type set constrains such as type valueType interface { Required | Optional }.