: Lucene boosts are per-field (not per-field-value) for a particular : document, so you can't have a multi-valued field with some values : boosted higher than others.
this little bit of subtlety in Lucene terminology has always bugged me ... the way i like to think of it is that field boosts are per field *name* not per instnace of "Field" (or in solr's case: "...not per instance of <field>") -Hoss
