Hi Chris, Yes, I saw the facet.range.include feature and briefly tried to implement it before realising that it was Solr 3.1 only :) I agree that it seems like the best solution to problem.
Reindexing with a +1MILLI hack had occurred to me and I guess that's what I'll do in the meantime; it just seemed like something that people must have run into before! I suppose it depends on the granularity of your timestamps; all of my values are actually just dates, so I've been putting them in as the date with T00:00:00.000Z, which makes the overlap problem very obvious. If anyone else has come across a solution for this, feel free to suggest another approach, otherwise it's reindexing time. Cheers, Liam On Fri, Sep 10, 2010 at 8:38 AM, Chris Hostetter <hossman_luc...@fucit.org>wrote: > : I'm trying to break down the data over a year into facets by month; to > avoid > : overlap, I'm using -1MILLI on the start and end dates and using a gap of > : +1MONTH. > : > : However, it seems like February completely breaks my monthly cycles, > leading > > Yep. > > Everything you posted makes sense to me in how DateMath works - "Jan 31 @ > 23:59.999" + "1 MONTH" results in "Feb 28 @ 23:59.999" ... at which point > adding "1 MONTH" to that results in "Mar 28 @ ..." because there is no > context of what the initial starting point was. > > It's not a situation i've ever personally run into ... one workarround > would be to use a "+1MILLI" fudge factor at indexing time, instead of a > "-1MILLI" fudge factor at query time ... that shouldn't have this problem. > > If you'd like to open a bug to trak this, I think it might be possible to > fix this behavior (there are some features in the Java calendaring code > that make things like "Jan 31 + 2 Months" do the right thing) but > personally I think working on SOLR-1896 (combined with the new > facet.range.include param) is a more effective use of time so > we can eliminate the need for this type of hack completely in future Solr > releases. > > -Hoss > > -- > http://lucenerevolution.org/ ... October 7-8, Boston > http://bit.ly/stump-hoss ... Stump The Chump! > >
