Re: [Tracker] RDF graphs and full text search

[Martyn Russell <martyn lanedo com>]

On 03/09/10 16:08, Mildred Ki'Lya wrote:
> With the following query, I don't get any results:
>
> SELECT ?x nie:url(?x)
> WHERE {
>    ?x a         nmo:Email ;
>       fts:match "Lucene"  .
> }
>
> Results: 0
>
>
> But with this:
>
> SELECT ?x nie:url(?x)
> WHERE {
>    ?x a nmo:Email
>    FILTER regex(nmo:plainTextMessageContent(?x), "Lucene")

nie:plainTextContent *is* indexed, however, nmo:plainTextMessageContent 
is *not* indexed. You can see what is and isn't using:

  tracker-sparql -q "select ?p where { ?p tracker:fulltextIndexed true }"

> Do I understand how is supposed to work fts:match correctly?

Yes, additionally, there is also this link which might be useful for you:

  http://live.gnome.org/Tracker/Documentation/Examples/SPARQL/FTS

--
Regards,
Martyn