code: func BitOr(db XODB, v0 int64, v1 int16, v2 int, v3 uint8) (uint8, error) {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT pg_catalog.bit_or($1, $2, $3, $4)`
  
  	// run query
  	var ret uint8
  	XOLog(sqlstr, v0, v1, v2, v3)
  	err = db.QueryRow(sqlstr, v0, v1, v2, v3).Scan(&ret)
  	if err != nil {
  		return uint8(0), err
  	}
  
  	return ret, nil
  }
docs: // BitOr calls the stored procedure 'pg_catalog.bit_or(bigint, smallint, integer, bit) bit' on db.