Re: Field highlighting

[Xavier Schepler]

Erick Erickson a écrit :
It's really hard to provide any response with so little information,
could you show us the difference between a field that works
and one that doesn't? Especially the relevant schema.xml entries
and the query that fails to highlight....
Erick

On Thu, Jan 7, 2010 at 7:47 AM, Xavier Schepler <
xavier.schep...@sciences-po.fr> wrote:

  
Hi,

I'm trying to highlight short text values. The field they came from has a
type shared with other fields. I have highlighting working on other fields
but not on this one.
Why ?

    

  
Thanks for your response.
Here are some extracts from my schema.xml :

<fieldtype name="textFr" class="solr.TextField">
     <analyzer>
       <!-- suppression des mots vides de sens -->
       <filter class="solr.StopFilterFactory" 
words="french-stopwords.txt" ignoreCase="true"/>
       <!-- decoupage en jetons -->
       <tokenizer class="solr.StandardTokenizerFactory"/>
       <!-- suppression des accents -->
       <filter class="solr.ISOLatin1AccentFilterFactory"/>
       <!-- suppression des points a la fin des accronymes -->
       <filter class="solr.StandardFilterFactory"/>
       <!-- passage en miniscules -->
       <filter class="solr.LowerCaseFilterFactory"/>
       <!-- lexemisation avec le filtre porter -->
       <filter class="solr.SnowballPorterFilterFactory" language="French"/>
       <!-- synonymes -->
       <filter class="solr.SynonymFilterFactory" 
synonyms="test-synonyms.txt" ignoreCase="true" expand="true"/>
     </analyzer>
   </fieldtype>

Here's a field on which highlighting works :

<field     name="questionsLabelsFr"
           required="false"
           type="textFr"
           multiValued="true"
           indexed="true"
           stored="true"
           compressed="false"
           omitNorms="false"
           termVectors="true"
           termPositions="true"
           termOffsets="true"
   />

Here's the field on which it doesn't :

  <field     name="modalitiesLabelsFr"
           required="false"
           type="textFr"
           multiValued="true"
           indexed="true"
           stored="true"
           compressed="false"
           omitNorms="false"
           termVectors="true"
           termPositions="true"
           termOffsets="true"
   />

They are kinda the same.

But modalitiesLabelFr contains mostly short strings like :

Côtes-d Armor
Creuse
Dordogne
Doubs
Drôme
Eure
Eure-et-Loir
Finistère

When matches are found in them, I get a list like this, with no text :

<lst name="highlighting">
<lst name="dbbd3642-db1d-4b35-9280-11582523903d"/>
....
<lst name="f1d8be2d-1070-4111-b16e-94d16c8c0bc6"/>
</lst>

The name attribute is the uid of the document.

I tryed several values for hl.fragsize (0, 1, 2, ...) with no success at 
all.