Good idea, Steve, thanks for that. It could end up being a very large query, though, and my search is even more complicated by the fact I have to do synonym expansion on the search too so
+(field1:term1^field1boost field2:term1^field2boost ...) +(field1:term2^field1boost field2:term2^field2boost ...) could turn into +(field1:term1^field1boost field1:term1synonym1^field1boost term1synonym2^field1boost field2:term1^field2boost ...) ... I thought about doing the expansion at indexing time but that makes it less dynamic as changes require a reindexing and this is driving an ecommerce website which might not take kindly to search downtime too often. The javadocs for MultiFieldQueryParser also suggest that using this class by creating an object & then calling parse, rather than using MultiFieldQueryParser.parse which is what I do, could achieve the same effect. At the moment I'm sort of working round this by doing 2 queries, one on a concatenated field which determines the valid set of hits and doing a union of that with a search that actually takes into account weightings properly. Seems to work but 2 searches is obviously not so good ! I'll give it a whirl and post my results. Steven A Rowe wrote: > > Hi Rich, > > On 10/17/2009 at 4:24 PM, Rich Livingstone wrote: >> I am a bit stumped by how to ensure that, where there are multiple >> terms in my query, that each term must appear at least once across >> all specified fields of my document. > > You can create a MUST clause for each term, with a boosted SHOULD term > query for each field, e.g.: > > +(field1:term1^field1boost field2:term1^field2boost ...) > +(field1:term2^field1boost field2:term2^field2boost ...) > ... > > Steve > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > -- View this message in context: http://www.nabble.com/How-to-make-each-term-of-query-appear-in-at-least-one-field-of-multiple-field-query-tp25941499p25970508.html Sent from the Lucene - Java Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
