The reason multi word synonyms work better if you use LUCENE_33 is because then Solr uses the SlowSynonymFilter instead of SynonymFilterFactory (FSTSynonymFilterFactory).
But I don't know if the difference between them is a bug or not. Maybe someone has more insight? Bernd Fehling-2 wrote > > Are you sure with LUCENE_33 (Use of BitVector)? > > > Am 31.05.2012 17:20, schrieb O. Klein: >> I have been struggling with this as well and found that using LUCENE_33 >> gives >> the best results. >> >> But as it will be deprecated this is no everlasting solution. May >> somebody >> knows one? >> > -- View this message in context: http://lucene.472066.n3.nabble.com/Multi-words-synonyms-matching-tp3898950p3987728.html Sent from the Solr - User mailing list archive at Nabble.com.