[Nepomuk] Re: Presentation, queries and other stuff

[Sebastian Trüg]

On 03/02/2011 11:57 AM, Ignacio Serantes wrote:
> On Wed, Mar 2, 2011 at 9:55 AM, Sebastian Trüg <trueg at kde.org
> <mailto:trueg at kde.org>> wrote:
> 
>     On 03/01/2011 03:29 PM, Ignacio Serantes wrote:
> 
>     There is no document describing the full database design yet. All we
>     have so far is [1]. As soon as the data management service is done I
>     plan to create such a document.
> 
> 
> I imagine that :). I will study this document and I will try to learn.
>  
> 
> 
>     No stored procedures yet. There are still many Virtuoso features that
>     need to be exploited. We have by far not reached the full potential
>     here.
> 
> 
> This is worrying because many problems can't be solved with brutal
> queries with brutal inner joins. This stuff must be added if you want
> that nepomuk db works with a limited amount of RAM and CPU.

Please make suggestions.

>     >     BTW: which version of KDE are you using here?
>     >
>     >
>     > openSUSE with Upstream release aka. KR46 (KDE SC 4.6) packages, but
>     > three weeks ago I was using KDE 4.5 Upstream version.
>     >
>     >
>     http://en.opensuse.org/KDE_repositories#Upstream_release_aka._KR46_.28KDE_SC_4.6.29
> 
>     ok, so you do not have the final optimizations in the query API that
>     went into 4.6.1 and git master.
> 
> 
> The story of my life, I'm always be an step before a working nepomuk :).
> Can you explain me a little bit how are this final optimizations?

A better visibility check directly on the resource. This also requires a
nao:userVisible property on all resources which is done by a new class.

Cheers,
Sebastian