You will need to get SolrIndexSearcher.java and modify following:- public static final int GET_SCORES = 0x01;
--Rajan On Wed, Sep 16, 2009 at 6:58 PM, Shashikant Kore <shashik...@gmail.com>wrote: > No, I don't wish to put a custom Similarity. Rather, I want an > equivalent of HitCollector where I can bypass the scoring altogether. > And I prefer to do it by changing the configuration. > > --shashi > > On Wed, Sep 16, 2009 at 6:36 PM, rajan chandi <chandi.ra...@gmail.com> > wrote: > > You might be talking about modifying the similarity object to modify > scoring > > formula in Lucene! > > > > $searcher->setSimilarity($similarity); > > $writer->setSimilarity($similarity); > > > > > > This can very well be done in Solr as SolrIndexWriter inherits from > Lucene > > IndexWriter class. > > You might want to download the Solr Source code and take a look at the > > SolrIndexWriter to begin with! > > > > It's in the package - org.apache.solr.update > > > > Thanks > > Rajan > > > > On Wed, Sep 16, 2009 at 5:42 PM, Shashikant Kore <shashik...@gmail.com > >wrote: > > > >> Thanks, Abhay. > >> > >> Can someone please throw light on how to disable scoring? > >> > >> --shashi > >> > >> On Wed, Sep 16, 2009 at 11:55 AM, abhay kumar <abhay...@gmail.com> > wrote: > >> > Hi, > >> > > >> > 1)Solr has various type of caches . We can specify how many documents > >> cache > >> > can have at a time. > >> > e.g. if windowsize=50 > >> > 50 results will be cached in queryResult Cache. > >> > if user makes a new request to server for results after 50 > >> > documents a new request will be sent to the server & server will > retrieve > >> > next 50 results in the cache. > >> > http://wiki.apache.org/solr/SolrCaching > >> > Yes, solr looks into the cache to retrieve the fields to be > >> returned. > >> > > >> > 2) Yes, we can have different tokenizers or filters for index & > search. > >> We > >> > need not create a different fieldtype. We need to configure the same > >> > fieldtype (datatype) for index & search analyzers sections > differently. > >> > > >> > e.g. > >> > > >> > <fieldType name="textSpell" class="solr.TextField" > >> > positionIncrementGap="100" stored="false" multiValued="true"> > >> > *<analyzer type="index">* > >> > <tokenizer class="solr.StandardTokenizerFactory"/> > >> > <filter class="solr.LowerCaseFilterFactory"/> > >> > > >> > <!--<filter class="solr.SynonymFilterFactory" > >> > synonyms="Synonyms.txt" ignoreCase="true" expand="false"/>--> > >> > <filter class="solr.StopFilterFactory" ignoreCase="true" > >> > words="stopwords.txt"/> > >> > <filter class="solr.StandardFilterFactory"/> > >> > <filter class="solr.RemoveDuplicatesTokenFilterFactory"/> > >> > </analyzer> > >> > * <analyzer type="query">* > >> > <tokenizer class="solr.StandardTokenizerFactory"/> > >> > <filter class="solr.LowerCaseFilterFactory"/> > >> > > >> > <filter class="solr.StandardFilterFactory"/> > >> > <filter class="solr.RemoveDuplicatesTokenFilterFactory"/> > >> > </analyzer> > >> > </fieldType> > >> > > >> > > >> > > >> > Regards, > >> > Abhay > >> > > >> > On Tue, Sep 15, 2009 at 6:41 PM, Shashikant Kore < > shashik...@gmail.com > >> >wrote: > >> > > >> >> Hi, > >> >> > >> >> I am familiar with Lucene and trying out Solr. > >> >> > >> >> I have index which was created outside solr. The index is fairly > >> >> simple with two field - document_id & content. The query result > needs > >> >> to return all the document IDs. The result need not be ordered by the > >> >> score. For this, in Lucene, I use custom hit collector with search to > >> >> get results quickly. The index has a few million documents and > queries > >> >> returning hundreds of thousands of documents are not uncommon. So, > the > >> >> speed is crucial here. > >> >> > >> >> Since retrieving the document_id for each document is slow, I am > using > >> >> FileldCache to store the values of document_id. For all the results > >> >> collected (in a bitset) with hit collector, document_id field is > >> >> retrieved from the fieldcache. > >> >> > >> >> 1. How can I effectively disable scoring? I have read that > >> >> ConstantScoreQuery is quite fast, but from the code, I see that it is > >> >> used only for wildcard queries. How can I use ConstantScoreQuery for > >> >> all the queries (boolean, term, phrase, ..)? Also, is > >> >> ConstantScoreQuery as fast as a custom hit collector? > >> >> > >> >> 2. How can Solr take advantage of the fieldcache while returning the > >> >> field document_id? The documentation says, fieldcache can be > >> >> explicitly auto warmed with Solr. If fieldcache is available and > >> >> initialized at the beginning, will solr look into the cache to > >> >> retrieve the fields to be returned? > >> >> > >> >> 3. If there is an additional field for stemmed_content on which > search > >> >> needs to use different analyzer, I suppose, that could be specified > by > >> >> fieldType attribute in the schema. > >> >> > >> >> Thank you, > >> >> > >> >> --shashi > >> >> > >> > > >> > > >
