There is a SpanWildcardQuery in the contib section of the java lucene. It can be imported to .Net pretty easily.
As mentioned, it's not very efficient - it requires the query to be rewritten before execution - turning it to a simple OR query with all the valid terms from the index before the query is executed. Eran. On Thu, Jan 7, 2010 at 8:25 PM, Michael Garski <[email protected]>wrote: > SpanNearQuery is what I use for similar cases, however I don't believe it > supports wildcard/prefix queries. > > The syntax you had in your example appear to be for proximity searches > using QueryParser to parse the query. One thing about your example is that > you had: > > "Zwischenver* Anspruch*"~0.5 > > The 'slop' value of 0.5 appears problematic, it should be an integer value > of the number of spaces between the terms. I'm not sure if such a query > supports wildcard searches either. > > I'm not a big fan of wildcard queries due to their potential performance > impact if there are a large number of terms that match the wildcard, opting > for creation of custom analyzers that tokenize or inject synonyms. > > Michael > > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > Ludwig Brusa > Sent: Thursday, January 07, 2010 10:10 AM > To: [email protected] > Subject: Re: Distance search with Wildcard > > Thanks for the quick reply. I am looking for documents, the terms > (with wildcards), and contain a certain distance between the terms. > > Kind regards, Ludwig > > > > 2010/1/7 Michael Garski <[email protected]>: > > Ludwig, > > > > What do you mean by 'distance search'? Are you looking for geospatial > > or documents that contain the terms within a certain distance of each > > other? > > > > Michael > > > > -----Original Message----- > > From: [email protected] [mailto:[email protected]] On Behalf > > Of Ludwig Brusa > > Sent: Thursday, January 07, 2010 9:40 AM > > To: [email protected] > > Subject: Distance search with Wildcard > > > > Hello > > > > I'm new here and a beginner on Lucene.net. I try to examine whether > > Lucene.net suitable for my project. > > My question: Can connecting Distance search with Wildcard so like here: > > > > "Zwischenver* Anspruch*"~0.5 > > > > I hope they understand my English. Thank you very much for your help. > > > > Kind regards, Ludwig > > > > > > > > >
