Hi, Thanks for your input. One citation from your report:
"These types of searches are uncommon, and thus programmers don't optimize for this case. Lucene, for example, has the ability to filter search results using date-ranges, but it is a slow, naive algorithm implemented through lexographic range searching on a custom field. Which is a user level hack that works ineffectively. There are no known other ways of performing a date range search." Since Lucene 2.9 / Solr 1.4, Lucene can handle numerical ranges without "a slow, naive algorithm", see NumericRangeQuery and NumericField. As every date can be represented as a number (e.g. year as integer, or milliseconds since 1970 as long,...), date searches can be done easily with Lucene (and very fast, because the intersection between the NumericRangeQuery and the TermQuery are done using ConjunctionScorer which does *not* naivly iterate the postings). Did you consider this in your implementation? Uwe ----- Uwe Schindler H.-H.-Meier-Allee 63, D-28213 Bremen http://www.thetaphi.de eMail: u...@thetaphi.de > -----Original Message----- > From: John Mercouris [mailto:jmercou...@gmail.com] > Sent: Monday, April 30, 2012 9:24 AM > To: dev@lucene.apache.org > Subject: Date Range Query Feature Implementation > > Hello we (John Mercouris & Nick Zivkovic) have implemented date range > search functionality into Lucene as part of a class project. The implementation > is detailed in the PDF attached. The source is available for download from > github at the URL: git://github.com/cs429-ir/date-range-search.git > > We hope that you find this useful, > > -John & Nick --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
