Yes, we're investigating dismax (with the qf param), but we're not sure it supports our syntax needs. The users want to put put AND/OR/NOT in their queries, and we don't want to write a lot of code converting those queries into dismax (+/-/mm) format. So, until 3.1 (edismax) ships, we're also trying to get boolean queries to work across multiple fields with the standard query handler.
I've seen quite a few unanswered or partially-answered posts on this list on getting boolean syntax right. I can tell it's a thorny issue. Robert Sandiford wrote: > > Have you looked at the 'qf' parameter? > > Bob Sandiford | Lead Software Engineer | SirsiDynix > P: 800.288.8020 X6943 | bob.sandif...@sirsidynix.com > www.sirsidynix.com > _____ > http://www.cosugi.org/ > > > > >> -----Original Message----- >> From: mrw [mailto:mikerobertsw...@gmail.com] >> Sent: Wednesday, March 02, 2011 2:28 PM >> To: solr-user@lucene.apache.org >> Subject: Re: Understanding multi-field queries with q and fq >> >> Anyone understand how to do boolean logic across multiple fields? >> >> Dismax is nice for searching multiple fields, but doesn't necessarily >> support our syntax requirements. eDismax appears to be not available >> until >> Solr 3.1. >> >> In the meantime, it looks like we need to support applying the user's >> query >> to multiple fields, so if the user enters "led zeppelin merle" we need >> to be >> able to do the logical equivalent of >> >> &fq=field1:led zeppelin merle OR field2:led zeppelin merle >> >> >> Any ideas? :) >> >> >> >> mrw wrote: >> > >> > After searching this list, Google, and looking through the Pugh book, >> I am >> > a little confused about the right way to structure a query. >> > >> > The Packt book uses the example of the MusicBrainz DB full of song >> > metadata. What if they also had the song lyrics in English and >> German as >> > files on disk, and wanted to index them along with the metadata, so >> that >> > each document would basically have song title, artist, publisher, >> date, >> > ..., All_Metadata (copy field of all metadata fields), Text_English, >> and >> > Text_German fields? >> > >> > There can only be one default field, correct? So if we want to >> search for >> > all songs containing (zeppelin AND (dog OR merle)) do we >> > >> > repeat the entire query text for all three major fields in the 'q' >> clause >> > (assuming we don't want to use the cache): >> > >> > q=(+All_Metadata:zeppelin AND (dog OR merle)+Text_English:zeppelin >> AND >> > (dog OR merle)+Text_German:(zeppelin AND (dog OR merle)) >> > >> > or repeat the entire query text for all three major fields in the >> 'fq' >> > clause (assuming we want to use the cache): >> > >> > q=*:*&fq=(+All_Metadata:zeppelin AND (dog OR >> merle)+Text_English:zeppelin >> > AND (dog OR merle)+Text_German:zeppelin AND (dog OR merle)) >> > >> > ? >> > >> > Thanks! >> > >> >> >> -- >> View this message in context: >> http://lucene.472066.n3.nabble.com/Understanding-multi-field-queries- >> with-q-and-fq-tp2528866p2619700.html >> Sent from the Solr - User mailing list archive at Nabble.com. > -- View this message in context: http://lucene.472066.n3.nabble.com/Understanding-multi-field-queries-with-q-and-fq-tp2528866p2625068.html Sent from the Solr - User mailing list archive at Nabble.com.
