Database results passing by reference or by value

[eluser]himalking[/eluser]
thanx a lot for your help, I didn't think of variable disposal after function call (how silly is me).

As you said there might be a temp duplication of the dataset while passing between model and controller or viewer, that's in case passing by value, but I guess if it's passed by reference there wouldn't be that duplication, and that is what I'm not sure about.

The duplication might be a decrease in server resources while dealing with large Blob dataset.