package named

import "github.com/ydb-platform/ydb-go-sdk/v3/table/result/named"

Index ¶

• type Type
• type Value
• func Optional(columnName string, destination interface{}) Value
• func OptionalWithDefault(columnName string, destinationValueReference interface{}) Value
• func Required(columnName string, destinationValueReference interface{}) Value

Types ¶

type Type ¶

type Type uint8

const (
	TypeUnknown Type = iota
	TypeRequired
	TypeOptional
	TypeOptionalWithUseDefault
)

type Value ¶

type Value struct {
	Name  string
	Value interface{}
	Type  Type
}

func Optional ¶

func Optional(columnName string, destination interface{}) Value

Optional makes an object with destination address for column value with name columnName

If column value is NULL, then ScanNamed will write a nil into destination

Warning: value must double-pointed data destination

func OptionalWithDefault ¶

func OptionalWithDefault(columnName string, destinationValueReference interface{}) Value

OptionalWithDefault makes an object with destination address for column value with name columnName

If scanned YDB value is NULL - default type value will be applied to value destination Warning: value must single-pointed data destination

func Required ¶

func Required(columnName string, destinationValueReference interface{}) Value

Required makes an object with destination address for column value with name columnName

Warning: value must single-pointed data destination

Source Files ¶

named.go