OyvindLGjesdal commented on issue #2974:
URL: https://github.com/apache/jena/issues/2974#issuecomment-2610121670
Hi @filak and thanks for the issue.
I haven't tested out the feature anywhere except for the tests, but from a
quick check I suspect that the properties has to be stored in different text
fields for it to currently work:
Comparing the test configuration which passes with your example:
````
[ text:field "ftext" ; text:predicate rdfs:label ]
[ text:field "ftext" ; text:predicate mt:note ]
) .
````
vs. the config of the the passing test
```
"[ text:field \"comment\" ; text:predicate rdfs:comment ]",
" [ text:field \"ftext\" ; text:predicate rdfs:label
]",
" [ text:field \"ftext\" ; text:predicate
mt:altLabel ]",
" [ text:field \"ftext\" ; text:predicate
mt:alt_label ]",
" [ text:field \"ftext\" ; text:predicate
mx:alt_label ]",
" [ text:field \"note\" ; text:predicate mt:note ]",
" ) ."
````
and looking at debug output of the issue running the tests
```
parsed query: +((ftext_en-01:red ftext_en-01:booze) (ftext_en-02:red
ftext_en-02:booze) (note_en-01:red note_en-01:booze)
(note_en-02:red note_en-02:booze)) +graph:urn:x-arq:DefaultGraphNode; limit:
10000
```
the list of predicates gets translated into a lucene query using the
generated field names based on their name and the languages, so currently
different field names have to be used for the query to succeed, and excluding
predicates that are stored in the same field isn't implemented.
```diff
- [ text:field "ftext" ; text:predicate mt:note ]
+ [ text:field "note" ; text:predicate mt:note ]
```
I don't know how the text query for single predicates are implemented or are
translated into a lucene query (or if they are filtered afterwards, after
searching a text field, if the predicate is stored also on the field?) but it
could be possible to implement here, given that predicate filtering works.
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