onConflict     = onConflictOption(db.Statement, rel.FieldSchema, defaultUpdatingColumns)
		refName        = rel.Name + "."
		values         = rValues.Interface()
	)

	for name, ok := range selectColumns {
		columnName := ""
		if strings.HasPrefix(name, refName) {
			columnName = strings.TrimPrefix(name, refName)
		}

		if columnName != "" {
			if ok {
				selects = append(selects, columnName)

				t.Errorf("failed to find unique constraint, got %v", constraints)
			}
		}
	})

	t.Run("namer", func(t *testing.T) {
		uname := "custom_unique_name"
		db, _ := gorm.Open(postgres.Open(postgresDSN), &gorm.Config{
			NamingStrategy: mockUniqueNamingStrategy{
				UName: uname,
			},
		})

		user, err := schema.Parse(&LongString{}, &sync.Map{}, db.Config.NamingStrategy)
		if err != nil {