[Mulgara-dev] 100k models?

[Paul Gearon]

On 4/5/07, Laurian Gridinoc <laurian at gmail.com> wrote:
<snip/>

> I see, is there any way to run a query over all models, without specifying
> each model?


Yes, although the language doesn't make it trivial, since it presumes you
know at least ONE of the models you're interested in!

You can do a select where the FROM clause is set to some dummy model (I'd
choose the "System Model", but it doesn't matter, so long as it's a real
model).  Then provide an IN clause for each constraint, with the model set
to a variable.

An example of this would be:
select $subject $object $model
from <rmi://localhost/server1#>
where $subject <my:property> $object in $model;

You can do arbitrarily complex things here, depending on how you join the
constraints, but this gives you an idea of what you want.

Paul

P.S.  Andrae: Maybe we should provide the syntactic sugar to allow a single
variable (and nothing else) in the FROM clause?
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