hi all, i was having the same problem, i needed to be able to search a substring anywhere within a word for a specific field. i used the NGramTokenizerFactory factory in my index analyzer and it seems to work well. ( http://lucene.apache.org/solr/api/org/apache/solr/analysis/NGramTokenizerFactory.html ).
i created a new field type based on this definition: http://coderrr.wordpress.com/category/solr/#ngram_schema_xml apparently it will increased the size of your index and perhaps indexing time but is working fine at the moment (although i'm currently only using a testbed of 20'000 records). i will report back if i discover any painful issues with scaling up! rob ganly On 3 December 2009 18:21, Joel Nylund <jnyl...@yahoo.com> wrote: > Just for an update on this, I tried text_rev and it seems to work great. > > So in summary, if you want partial word matches within a url or small > sentence (title), here is what I did and it seems to work pretty well: > > - create an extra field that is all lower case , I used mysql lcase in the > query for DIH > - make that field use text_rev type in schema.xml > - make the query be "sulli OR *sulli*" (the *sulli* doesnt seem to match > sulli if its at the end of the field) > > thanks > Joel > > > > > On Nov 25, 2009, at 9:21 AM, Robert Muir wrote: > > Hi, if you are using Solr 1.4 I think you might want to try type text_rev >> (look in the example schema.xml) >> >> unless i am mistaken: >> >> this will enable leading wildcard support for that field. >> this doesn't do any stemming, which I think might be making your wildcards >> behave wierd. >> it also enables reverse wildcard support, so some of your substring >> matches >> will be faster. >> >> On Tue, Nov 24, 2009 at 7:51 PM, Joel Nylund <jnyl...@yahoo.com> wrote: >> >> Hi, I saw some older postings on this, but didnt see a resolution. >>> >>> I have a field called title, I would like to be able to find partial word >>> matches within the title. >>> >>> For example: >>> >>> http://localhost:8983/solr/select?q=textTitle:%22*sulli*%22 >>> >>> I would expect it to find: >>> <str name="textTitle">the daily dish | by andrew sullivan</str> >>> >>> but it doesnt, it does find sully (which is fine with me also as a >>> bonus), >>> but doesnt seem to get any of the partial word stuff. Oddly enough before >>> I >>> lowercased the title, the wildcard matching seemed to work a bit better, >>> it >>> just didnt deal with the case sensitive query. >>> >>> At first I had mixed case titles and I read that the wildcard doesn't >>> work >>> with mixed case, so I created another field that is a lowered version of >>> the >>> title called "textTitle", it is of type text. >>> >>> Is it possible with solr to achieve what I am trying to do, if so how? If >>> not, anything closer than what I have? >>> >>> thanks >>> Joel >>> >>> >>> >> >> -- >> Robert Muir >> rcm...@gmail.com >> > >
