code: func Timenow(db XODB) (pgtypes.Abstime, error) {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT pg_catalog.timenow()`
  
  	// run query
  	var ret pgtypes.Abstime
  	XOLog(sqlstr)
  	err = db.QueryRow(sqlstr).Scan(&ret)
  	if err != nil {
  		return pgtypes.Abstime{}, err
  	}
  
  	return ret, nil
  }
docs: // Timenow calls the stored procedure 'pg_catalog.timenow() abstime' on db.