No, the reverse is true. Sorting is very very fast in Lucene. The first sort operation spends a lot of time making a data structure and then following sort calls use it.
On Thu, Nov 19, 2009 at 1:52 PM, Anil Cherian <cherian.anil2...@gmail.com> wrote: > Hi David, > > I just now tried a sorting on the results and I got the records with latest > approval_dt first. > > My question now is will index-time boosting method increase the response. ie > will I be able to acheive the same thing i achieved > using sorting much faster if i use index-time boosting. > > If you feel it helps could you please send me a sample query also. > > Thanks, > Anil. > On Thu, Nov 19, 2009 at 3:36 PM, Smiley, David W. <dsmi...@mitre.org> wrote: > >> Anil, without delving into why your boosting isn't working as you expect, >> why don't you simply sort? Based on a message you sent to me directly >> (excerpted bellow), it seems you want sorting, not boosting. You could >> subsequently sort by score after approval_dt. >> >> ~ David Smiley >> Author: http://www.packtpub.com/solr-1-4-enterprise-search-server/ >> >> > >> > My ultimate aim is to always bring up records in the result having >> latest approval_dt to appear first using index-time boosting in SOLR. Could >> you pls help me with some directions. >> >> >> On Nov 19, 2009, at 12:25 PM, Anil Cherian wrote: >> >> > Hi, >> > >> > I am working on index-time boosting. >> > I have a field named approval_dt. I have created that <field> in my SOLR >> xml >> > to be uploaded, by sorting my query in ascending order of approval_dt and >> > then increasing the boost for this field by 0.1 as i encounter new >> records >> > from database. In my schema.xml that field has omitNorms=false (<field >> > name="approval_dt" type="date" indexed="true" stored="true" >> > omitNorms="false"/>) >> > >> > Suppose I am searching for a keyword say *India*. I want my results to >> come >> > in such a way that the ones with latest/ recent approval_dt should come >> > first. >> > >> > I achieved this using query-time boosting bf parameter. I am not trying >> it >> > using the index-time approach. >> > Any help is appreciated. >> > >> > Thank you. >> > Anil >> >> > -- Lance Norskog goks...@gmail.com
