To answer my own questions, the problem I had was that I didn't pad zeros in my query as the same way as in the IntegerAnalyzer.
# rip from the "Ferret" ebook at http://www.oreilly.com/catalog/9780596527853/index.html module Ferret::Analysis # range comparision is done by lexical order, not numeric order class IntegerTokenizer def initialize(num, width) @num = num.to_i @width = width end def next token = Token.new("[EMAIL PROTECTED]" % @num, 0, @width) if @num @num = nil return token end def text=(text) @num = text.to_i end end class IntegerAnalyzer def initialize(width) @width = width end def token_stream(field, input) return IntegerTokenizer.new(input, @width) end end end include Ferret::Analysis analyzer = PerFieldAnalyzer.new(StandardAnalyzer.new) # "num" is the name of the field which to use this analyzer analyzer[:num] = IntegerAnalyzer.new(3) index = Ferret::Index::Index.new(:analyzer => analyzer) docs = [ {:num => 5}, {:num => 15}, {:num => 30} ] docs.each { |d| index << d } >> puts index.search('num:[001 020]') TopDocs: total_hits = 2, max_score = 1.000000 [ 0 "": 1.000000 1 "": 1.000000 ] => nil >> ?> puts index.search('num:[010 100]') TopDocs: total_hits = 2, max_score = 1.000000 [ 1 "": 1.000000 2 "": 1.000000 ] Yaxm Yaxm wrote: > Hi, > it looks like Ferret still compares numeric fields by lexical ordering, > not numerical ordering. I am using Ferret 0.11.4(I tried in both linux > and windows, the results are the same). > > > index = Ferret::Index::Index.new() > docs = [ > {:num => 1, :data => "yes"}, > {:num => 1, :data => "no"}, > {:num => 10, :data => "yes"}, > {:num => 10, :data => "no"}, > {:num => 100, :data => "yes"}, > {:num => 100, :data => "no"}, > {:num => 1000, :data => "yes"}, > {:num => 1000, :data => "no"} > ] > > ?> puts index.process_query('data:yes AND num:[10 100]') > +data:yes +num:[10 100] > => nil >>> puts index.search('d:data:yes AND num:[10 100]') > TopDocs: total_hits = 2, max_score = 1.777895 [ > 2 "": 1.777895 > 4 "": 1.777895 > ] > => nil >>> puts index.process_query('data:yes AND num:[2 100]') > num:"data yes <> num 2 100"~4 > => nil >>> puts index.process_query('num:[2 100]') > num:"num 2 100"~2 > => nil >>> puts index.search('num:[2 100]') > TopDocs: total_hits = 0, max_score = 0.000000 [ > ] > => nil >>> puts index.process_query('num:>2') > num:{2> > => nil >>> puts index.search('num:>2') > TopDocs: total_hits = 0, max_score = 0.000000 [ > ] > => nil > > > According to the release note for Ferret 0.10.6 at > http://rubyforge.org/forum/forum.php?forum_id=9058, "Range queries just > work. No need to pad numbers or format dates correctly." > > Is this a new bug? > > Thanks. > Yaxm -- Posted via http://www.ruby-forum.com/. _______________________________________________ Ferret-talk mailing list [email protected] http://rubyforge.org/mailman/listinfo/ferret-talk
