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Posted to solr-commits@lucene.apache.org by Apache Wiki <wi...@apache.org> on 2009/09/13 22:07:37 UTC

[Solr Wiki] Update of "AnalyzersTokenizersTokenFilters" by YonikSeeley

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The following page has been changed by YonikSeeley:
http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters

The comment on the change is:
pointer for ReversedWildcardFilterFactory 

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      </fieldType>
  }}}
  
+ [[Anchor(ReversedWildcardFilterFactory)]]
+ ==== solr.ReversedWildcardFilterFactory ====
+ <!> ["Solr1.4"]
+ 
+ A filter that reverses tokens to provide faster leading wildcard and prefix queries.  Add this filter to the index analyzer, but not the query analyzer.  The standard Solr query parser (SolrQuerySyntax) will use this to reverse wildcard and prefix queries to improve performance (for example, translating myfield:*foo into myfield:oof*).  To avoid collisions and false matches, reversed tokens are indexed with a prefix that should not otherwise appear in indexed text.
+ 
+ See the [http://lucene.apache.org/solr/api/org/apache/solr/analysis/ReversedWildcardFilterFactory.html javadoc] for more details, or the [http://svn.apache.org/viewvc/lucene/solr/trunk/example/solr/conf/schema.xml?view=markup example schema].
+