Thanks Otis, that was exactly what was happening. 1) According to here: http://wiki.apache.org/lucene-java/LuceneFAQ#head-133cf44dd3dff3680c96c1316a663e881eeac35a wildcard queries are not passed through the Analyzer, but they are always set to lower case.
2) And according to here: http://wiki.apache.org/lucene-java/LuceneFAQ#head-0f374b0fe1483c90fe7d6f2c44472d10961ba63c un_tokenized fields are not passed through the Analyze as well. So by creating an untokenized field and setting parser.setLowercaseExpandedTerms(false), I manage to make my use case work in a case-sensitive manner. That is, 'u*' returns 'usa' and 'U*' returns USA.... The thing is, how to make this case-insensitive? I can make #1 work by settting it to lowercase: parser.setLowercaseExpandedTerms(true). But how make #2 work, that is, using a LowerCaseFilter to an Untokenized field? Thanks, Andre On Tue, Aug 12, 2008 at 7:57 PM, Otis Gospodnetic <[EMAIL PROTECTED]> wrote: > Andre, > > Check the Lucene FAQ, there is an entry about wildcards and analysis (which > doesn't take place for wildcard queries). Could that be it? > > Otis > -- > Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch > > > > ----- Original Message ---- >> From: Andre Rubin <[EMAIL PROTECTED]> >> To: java-user@lucene.apache.org >> Sent: Tuesday, August 12, 2008 5:30:47 PM >> Subject: Re: Searching Tokenized x Un_tokenized >> >> My searches for my String tokenized field was working properly. I >> switched the field to un_tokenized, rebuilt the index, and now my >> searches only return strings that match the query string in lower >> case. >> >> For example, searching for 'us*': >> >> The tokenized field version would find 'USA' and 'usa' >> >> The untokenized field version only finds 'usa' >> >> I'm using the StandardAnalyzer in both cases. >> >> Thanks >> >> >> Andre >> >> On Thu, Aug 7, 2008 at 8:16 PM, Otis Gospodnetic >> wrote: >> > Hi, >> > >> > Perhaps you can give some examples. Yes, untokenized means "full string" >> > - it >> requires an "exact match". >> > >> > Otis >> > -- >> > Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch >> > >> > >> > >> > ----- Original Message ---- >> >> From: Andre Rubin >> >> To: java-user@lucene.apache.org >> >> Sent: Thursday, August 7, 2008 8:04:04 PM >> >> Subject: Searching Tokenized x Un_tokenized >> >> >> >> Hi all, >> >> >> >> When I switched a String field from tokenized to untokenized, some >> >> searches started not returning some obvious values. Am I missing >> >> something on querying untokenized fields? Another question is, do I >> >> need an Analyzer if my search is on an Untokenized field, wouldn't the >> >> search be based on the full String rather than its tokens? >> >> >> >> Thanks, >> >> >> >> >> >> Andre >> >> >> >> --------------------------------------------------------------------- >> >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> >> For additional commands, e-mail: [EMAIL PROTECTED] >> > >> > >> > --------------------------------------------------------------------- >> > To unsubscribe, e-mail: [EMAIL PROTECTED] >> > For additional commands, e-mail: [EMAIL PROTECTED] >> > >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
