presto-main/src/main/java/io/prestosql/execution/QueryStateMachine.java/QueryStateMachine/updateOutputLocations
class QueryStateMachine:    public void updateOutputLocations(Set<URI> newExchangeLocations, boolean noMoreExchangeLocations)
    {
        outputManager.updateOutputLocations(newExchangeLocations, noMoreExchangeLocations);
    }