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The "UnicodeCollation" page has been changed by RobertMuir. http://wiki.apache.org/solr/UnicodeCollation?action=diff&rev1=2&rev2=3 -------------------------------------------------- == Overview == [[http://en.wikipedia.org/wiki/Unicode_collation_algorithm|Unicode Collation]] is a method to sort text in a language-sensitive way. It is primarily intended for sorting, but can also be used for advanced search purposes. + Unicode Collation in Solr is fast, all the work is done at index time. + The way it works is that instead of just using a KeywordTokenizerFactory to create a sort field, you use KeywordTokenizerFactory followed by CollationKeyFilterFactory. + At index time this indexes special "sort keys" into the sort field, so that at search you just sort on the sort field, and it comes back in collated order. + - Unicode Collation in Solr is fast, all the work is done at index time. For more information, see the [[http://lucene.apache.org/solr/api/org/apache/solr/analysis/CollationKeyFilterFactory.html|Javadocs]]. + For more information, see the [[http://lucene.apache.org/solr/api/org/apache/solr/analysis/CollationKeyFilterFactory.html|Javadocs]]. <<TableOfContents>>
