: : Inspirited by the previous post, does it possible to add my custom field and : use it for sorting the search result? : If It is possible, what will be the step? Do I need to modify the source : code?
adding a custom field is easy, just add the <field/> to your schema.xml and put data in it. adding a custom *fieldtype* is trickier ... compile your new fieldtype against the solr code base, package it in a jar, and put that jar in the plugin lib dir... http://wiki.apache.org/solr/SolrPlugins ...no need to modify any Solr code. -Hoss