Hi , I'm relatively new to Solr/Lucene, and am using Solr (and not lucene directly) primarily because I can use it without writing java code (rest of my project is python coded).
My application has the following requirements: (a) ability to search over multiple fields, each with different weight (b) If possible, I'd like to have the ability to add extra/diminished weights to particular tokens within a field (c) My query strings have large lengths (50-100 words) (d) My index is 500K+ documents 1) The way to (a) is field boosting (right?). My question is: Is all field boosting done at query time? Even if I give index time boosts to fields? Is there a performance advantage in boosting fields at index time vs at using something like fieldname:querystring^boost. 2) From what I've read, it seems that I can do (b) using payloads. However, as this link ( http://www.lucidimagination.com/blog/2009/08/05/getting-started-with-payloads/) suggests, I will have to write a payload aware Query Parser. Wanted to confirm if this is indeed the case - or is there a out-of-box way to implement payloads (am using Solr1.4) 3) For my project, the user fills multiple text boxes (for each query). I combine these into a single query (with different treatment for contents of each text box). Consequently, my query looks something like (fieldname1: queryterm1 queryterm2^2.0 queryterm3^3.0 +queryterm4)^1.0 Are there any guidelines for improving performance of such a system (sorry, this bit is vague) Any help with this will be great ! Girish Redekar http://girishredekar.net
