What is PostgreSQL driver is most stable?

[Suliman via Digitalmars-d-learn]

> The retrieval of records is done via the execution of a 
> (prepared) sql query, that returns a range object 
> (PGResultSet), and the element of that range is the DBRow, in 
> one of its form.
>
> So, basically, the elements are retrieved on demand while you 
> popFront that range, leveraging what the PostgreSQL stream 
> protocol provide.
>
> ---
> Paolo

Could you give an example when it's better to use DBRow and where 
to get data in structure?