On Tue, Feb 19, 2013 at 12:57 PM, Jack Krupansky <j...@basetechnology.com>wrote:
> Oops, sorry for the "Solr" answer. In Lucene you need to simply index the > same value, once as a raw string and a second time as a tokenized text > field. Grouping would use the raw string version of the data. > > Yeah, thanks Jack. Was just wondering if there would be a better alternate rather than 2x storing. But I don't see any. Thanks again. > -- Jack Krupansky > > -----Original Message----- From: Jack Krupansky > Sent: Monday, February 18, 2013 11:21 PM > > To: java-user@lucene.apache.org > Subject: Re: Grouping and tokens > > Okay, so, fields that would normally need to be tokenized must be stored as > both raw strings for grouping and tokenized text for keyword search. Simply > use copyField to copy from one to the other. > > -- Jack Krupansky > > -----Original Message----- From: Ramprakash Ramamoorthy > Sent: Monday, February 18, 2013 11:13 PM > To: java-user@lucene.apache.org > Subject: Re: Grouping and tokens > > On Mon, Feb 18, 2013 at 9:47 PM, Jack Krupansky > <j...@basetechnology.com>**wrote: > > Please clarify exactly what you want to group by - give a specific example >> that makes it clear what terms should affect grouping and which shouldn't. >> >> > Assume I am indexing a library data. Say there are the following fields for > a particular book. > 1. Published > 2. Language > 3. Genre > 4. Author > 5. Title > 6. ISBN > > While search time, the user can ask to group by any of the above > fields, which means all of them are not supposed to be tokenized. So as I > had told earlier, there is a book titled "Fifty shades of gray" and the > user searches for "shades". The result turns up in case the field is > tokenized. But here it doesn't, since it isn't tokenized. Hope I am clear? > > In a nutshell, how do I use a groupby on a field that is also > tokenized? > > >> -- Jack Krupansky >> >> -----Original Message----- From: Ramprakash Ramamoorthy >> Sent: Monday, February 18, 2013 6:12 AM >> To: java-user@lucene.apache.org >> Subject: Grouping and tokens >> >> >> Hello all, >> >> From the grouping javadoc, I read that fields that are supposed to be >> grouped should not be tokenized. I have an use case where the user has the >> freedom to group by any field during search time. >> >> Now that only tokenized fields are eligible for grouping, this is >> creating an issue with my search. Say for instance the book "*Fifty shades >> of grey*" when tokenized and searched for "*shades*" turns up in the >> >> result. However this is not the case when I have it as a non-tokenized >> field (using StandardAnalyzer-Version4.1). >> >> How do I go about this? Is indexing a tokenized and non-tokenized >> version of the same field the only go? I am afraid its way too costly! >> Thanks in advance for your valuable inputs. >> >> -- >> With Thanks and Regards, >> Ramprakash Ramamoorthy, >> India, >> +91 9626975420 >> >> ------------------------------****----------------------------** >> --**--------- >> To unsubscribe, e-mail: java-user-unsubscribe@lucene.****apache.org< >> java-user-**unsubscr...@lucene.apache.org<java-user-unsubscr...@lucene.apache.org> >> > >> For additional commands, e-mail: java-user-help@lucene.apache.****org< >> java-user-help@lucene.**apache.org <java-user-h...@lucene.apache.org>> >> >> >> > > -- > With Thanks and Regards, > Ramprakash Ramamoorthy, > India. > +91 9626975420 > > > ------------------------------**------------------------------**--------- > To unsubscribe, e-mail: > java-user-unsubscribe@lucene.**apache.org<java-user-unsubscr...@lucene.apache.org> > For additional commands, e-mail: > java-user-help@lucene.apache.**org<java-user-h...@lucene.apache.org> > > ------------------------------**------------------------------**--------- > To unsubscribe, e-mail: > java-user-unsubscribe@lucene.**apache.org<java-user-unsubscr...@lucene.apache.org> > For additional commands, e-mail: > java-user-help@lucene.apache.**org<java-user-h...@lucene.apache.org> > > -- With Thanks and Regards, Ramprakash Ramamoorthy, India, +91 9626975420
