[Versa] Versa issue: subgraph primitives?

[Uche Ogbuji]

On Sun, 2005-08-28 at 23:14 -0600, Michael Olson wrote:
> 
> So, just to clarify, from a data structure POV, how is a sub graph  
> different then a list of statements?  In my mind they are identical be  
> cause we could not require that all of the statements in the subgraph  
> are connected (for the purposes of a versa result).

>From a data structure POV the only difference between one and the other
is that list of statements has order, and subgraph (technically)
shouldn't.  I think this is a difference we could gloss over.

>From a conceptual POV, OTOH, I think that it's important to have
subgraph as a first class concept, because it's so important to the idea
of composable subqueries.


-- 
Uche Ogbuji                               Fourthought, Inc.
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