[xquery-talk] [announce] Zorba: an XQuery processor,
first release (0.9)
dflorescu at mac.com
Tue May 13 09:59:12 PDT 2008
not only there are two C++ XQuery engines with Apache licence (Zorba
and XQuilla), but we do work
together with the XQuilla team and make sure we have a common C/C++
Api, such that users can switch
I guess that at this point they are not that different. But they might
evolve very differently in the future.
It is probably premature to answer your question of how to use each
one for which task.
XQuery is just a baby technology at this point, users requests are not
it is very hard to predict how the implementations will evolve.
I would say: stay tuned and watch the space :-)
Here are some examples of projects that we work on in the Zorba team
- the eclipse plugin editor and debugger
- a version of Zorba that will run on mobile phones
- various backend stores, persistent or not
Performance might or might not be a differentiator, it is hard to
predict. I can tell right now
that this first release of Zorba performs worse then XQuilla, but we
expect this to change in the next 3-4 months.
This version of Zorba is just not optimized for performance (it's
missing classical rewriting rules, only nested
loops, no indexes, some synchronization perf. problems, etc, etc).
Performance will be the focus
of our next 6 months.
But it is hard to predict how good/bad they will compare in the
future. Both engines are evolving and
improving rapidly right now.
But bottom line is: I think the competition is welcome, it makes the
market stronger, and I hope will
give users more confidence to embark on the XQuery route.
And also, honestly, it makes our engineering challenges more fun ! :-)
On May 13, 2008, at 1:41 AM, Fabrice Desré - France Telecom DR&D/MAPS/
> Hello Daniela,
> Good news to see a zorba release !
> Now there are two C++ based XQuery processors (Zorba and XQilla).
> From their description they seem to be quite similar in scope and
> goals. Can you give some information on how different they are in
> order to choose the one most appropriate for a given task ?
> Fabrice Desré
> France Télécom R&D/MAPS/AMS
> Tél: +(33) (0)2 96 05 31 43
> Fax: +(33) (0)2 96 05 39 45
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