code: func LoPut(db XODB, v0 pgtypes.Oid, v1 int64, v2 []byte) error {
  	var err error
  
  	// sql query
  	const sqlstr = `SELECT pg_catalog.lo_put($1, $2, $3)`
  
  	// run query
  	XOLog(sqlstr)
  	_, err = db.Exec(sqlstr)
  	return err
  }
docs: // LoPut calls the stored procedure 'pg_catalog.lo_put(oid, bigint, bytea) void' on db.