Hi, You're right, it's illegal syntax to use other functions in the ms function, which is a pity indeed.
However, you reduce the score by 50% for each year. Therefore paging through the results shouldn't make that much of a difference because the difference in score with NOW+2 minutes has a negligable impact on the total score. I had some thoughts on this issue as well but i decided the impact was too little to bother about. Cheers, > I'm trying to use > http://wiki.apache.org/solr/SolrRelevancyFAQ#How_can_I_boost_the_score_of_n > ewer_documents as > a bf parameter to my dismax handler. The problem is, the value of NOW can > cause documents in a similar range (date value within a few seconds of each > other) to sometimes round to be equal, and sometimes not, changing their > sort order (when equal, falling back to a secondary sort). This, in turn, > screws up paging. > > The problem is that score is rounded to a lower level of precision than > what the suggested formula produces as a difference between two values > within seconds of each other. It seems to me if I could round the value > to minutes or hours, where the difference will be large enough to not be > rounded-out, then I wouldn't have problems with order changing on me. But > it's not legal syntax to specify something like: > recip(ms(NOW,manufacturedate_dt/HOUR),3.16e-11,1,1) > > Is this a problem anyone has faced and solved? Anyone have suggested > solutions, other than indexing a copy of the date field that's rounded to > the hour? > > -- > Stephen Duncan Jr > www.stephenduncanjr.com
