return "CONSTRAINT ? CHECK (?)", []interface{}{clause.Column{Name: chk.Name}, clause.Expr{SQL: chk.Constraint}}
}

// ParseCheckConstraints parse schema check constraints
func (schema *Schema) ParseCheckConstraints() map[string]CheckConstraint {
	checks := map[string]CheckConstraint{}
	for _, field := range schema.FieldsByDBName {
		if chk := field.TagSettings["CHECK"]; chk != "" {

			Constraint: "name <> 'jinzhu'",
		},
		"chk_user_checks_name3": {
			Name:       "chk_user_checks_name3",
			Constraint: "name <> 'jinzhu'",
		},
	}

	checks := user.ParseCheckConstraints()

	for k, result := range results {
		v, ok := checks[k]
		if !ok {
			t.Errorf("Failed to found check %v from parsed checks %+v", k, checks)
		}

		for _, name := range []string{"Name", "Constraint"} {

				columnTypes, err := queryTx.Migrator().ColumnTypes(value)
				if err != nil {
					return err
				}
				var (
					parseIndexes          = stmt.Schema.ParseIndexes()
					parseCheckConstraints = stmt.Schema.ParseCheckConstraints()
				)
				for _, dbName := range stmt.Schema.DBNames {
					var foundColumn gorm.ColumnType

					for _, columnType := range columnTypes {
						if columnType.Name() == dbName {