Fantastic, thanks, yes I completely overlooked that case, separating the analysers worked a treat.
Had also posted on stack overflow but the mailing list proved to be superior! Many thanks, Daniel On 27 October 2011 13:09, Erick Erickson <erickerick...@gmail.com> wrote: > Take a look at your admin/analysis page and put your tokens in for both > index and query times. What I think you'll see is that the # is being > stripped at query time due to the first PatternReplaceFilterFactory. > > You probably want to split your analyzers into an index-time and query-time > pair and do the appropriate replacements to keep # at quer time. > > > Best > Erick > > On Tue, Oct 25, 2011 at 12:27 PM, Daniel Bradley > <daniel.brad...@adfero.co.uk> wrote: > > When running a search such as: > > field_name:# > > field_name:"#" > > field_name:"\#" > > > > where there is a record with the value of exactly "#", solr returns 0 > rows. > > > > The workaround we are having to use is to use a range query on the > > field such as: > > field_name:[# TO #] > > and this returns the correct documents. > > > > Use case details: > > We have a field that indexes a text field and calculates a "letter > > group". This keeps only the first significant character from a value > > (number or letter), and if it is a number the simply stores "#" as we > > want all numbered items grouped together. > > > > I'm also aware that we could also fix this by using a specific number > > instead of the hash character, however, I though I'd raise this to see > > if there is a wider issue. I've listed some specific details below. > > > > Thanks for your time, > > > > Daniel Bradley > > > > > > Field definition: > > <fieldType name="letterGrouping" class="solr.TextField" > > sortMissingLast="true" omitNorms="true"> > > <analyzer> > > <tokenizer class="solr.PatternTokenizerFactory" > > pattern="^([a-zA-Z0-9]).*" group="1"/> > > <filter class="solr.LowerCaseFilterFactory" /> > > <filter class="solr.TrimFilterFactory" /> > > <filter class="solr.PatternReplaceFilterFactory" > > pattern="([^a-z0-9])" replacement="" replace="all" > > /> > > <filter class="solr.PatternReplaceFilterFactory" > > pattern="([0-9])" replacement="#" replace="all" > > /> > > </analyzer> > > </fieldType> > > > > Server information: > > Solr Specification Version: 3.2.0 > > Solr Implementation Version: 3.2.0 1129474 - rmuir - 2011-05-30 23:07:15 > > Lucene Specification Version: 3.2.0 > > Lucene Implementation Version: 3.2.0 1129474 - 2011-05-30 23:08:57 > > >
