func (ageFloat) String() string {
	return "age"
}

func TestExplainSQL(t *testing.T) {
	user := *GetUser("explain-sql", Config{})
	dryRunDB := DB.Session(&gorm.Session{DryRun: true})

	stmt := dryRunDB.Model(&user).Where("id = ?", 1).Updates(map[string]interface{}{"age": ageInt(8)}).Statement
	sql := DB.Dialector.Explain(stmt.SQL.String(), stmt.Vars...)
	if !regexp.MustCompile(`.*age.*=8,`).MatchString(sql) {