code: func MyEnumValues(db XODB, schema string, enum string) (*MyEnumValue, error) {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT ` +
  		`SUBSTRING(column_type, 6, CHAR_LENGTH(column_type) - 6) AS enum_values ` +
  		`FROM information_schema.columns ` +
  		`WHERE data_type = 'enum' AND table_schema = ? AND column_name = ?`
  
  	// run query
  	XOLog(sqlstr, schema, enum)
  	var mev MyEnumValue
  	err = db.QueryRow(sqlstr, schema, enum).Scan(&mev.EnumValues)
  	if err != nil {
  		return nil, err
  	}
  
  	return &mev, nil
  }
docs: // MyEnumValues runs a custom query, returning results as MyEnumValue.