Re: Help - Does DSMS/Data stream fall under "DBMS design and implementation" category?

Marshall wrote:
> Jan Hidders wrote:
> >
> > The leading research project in that area is the Stanford Stream Data
> > Manager:
> >
> > http://www-db.stanford.edu/stream/
>
> I read through the powerpoint slides for "Models and Issues". I was
> quite surprised to see their model allows stream joins. It wasn't
> altogether clear what the semantics are, but I suppose the papers
> make that clear. I'm hard pressed to imagine how that's going to
> work.

In principle the semantics are simple. The input are two streams and the system produces an output stream that contains tuples from then join result as soon as (or a bit later) the system has received the two 'joinable' tuples in its input streams.

• Jan Hidders