I know this is rare, But I am building an application that submits searches having 500+ search terms. A general example would be
field1:w1 OR field1:w2 OR ... OR field1:w500 For 1 millions documents, the performance is OK if field1 in each document has less than 50 terms, I can get result < 1 sec. but if field1 has more than average 400 terms in each document, the performance degrades to around 6 secs. Is there anyway to improve this? And my second questions is that my query often comes with an AND condition with another search word. for example: field2:w AND (field1:w1 OR field1:w2, ... field1:w500) field2:w will only return less than 1000 records out of 1 millions. then I thought I could use a StringFilter Object? i.e. search on field2.w first, thus limit the search for 500 OR only on the field2.w 1000 results. somewhat like a join in database. But I checked the code and sees that IndexSearcher always perfomance the 500 disk searches before calling the filter object? Any suggestions on this? Also does lucene caches results in memory? I see the performance tends to get better after a few runs, especailly on searches on fields having small number of terms. If so, can I manipulate the cache size somehow to accommdate fields with large number of terms. Many thanks. ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
