Lower Case Filter Factory

[swarag <Sw...@citysearch.com>]

Hi,
I am using the basic text field in schema.xml. Here is an excerpt. 

<field name="name" type="text"      index="true"  stored="true" 
multiValued="false" omitNorms="true"/>

and the fieldType text is as follows:

<fieldtype name="text" class="solr.TextField" positionIncrementGap="100">
      <analyzer type="index">
        <tokenizer class="solr.WhitespaceTokenizerFactory"/>
        <filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt"/>
        <filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="1"
catenateNumbers="1" catenateAll="0"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.EnglishPorterFilterFactory"
protected="protwords.txt"/>
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
      </analyzer>
      <analyzer type="query">
        <tokenizer class="solr.WhitespaceTokenizerFactory"/>
         <filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt"/>
        <filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="0"
catenateNumbers="0" catenateAll="0"/>
        <filter class="solr.LowerCaseFilterFactory"/>
        <filter class="solr.EnglishPorterFilterFactory"
protected="protwords.txt"/>
        <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
      </analyzer>
    </fieldtype>
 
When I query:
http://localhost:8983/solr/select?q=p*
I get results back, but when I query as 
http://localhost:8983/solr/select?q=P*

I get no results. Is there anything wrong im doing?
Thanks,
Swarag





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Re: Lower Case Filter Factory

[Erik Hatcher <er...@ehatchersolutions.com>]

On Aug 11, 2008, at 1:51 PM, swarag wrote:
> When I query:
> http://localhost:8983/solr/select?q=p*
> I get results back, but when I query as
> http://localhost:8983/solr/select?q=P*
>
> I get no results. Is there anything wrong im doing?

Wildcard expressions are _not_ analyzed when parsed.  Their case is  
left as-is too.  There is a switch to Lucene's query parser that  
allows it to lowercase wildcard and fuzzy terms  
(setLowercaseExpandedTerms), but unfortunately that switch is not  
currently controllable from Solr.

One option is to have your querying client do the lowercasing for now.

	Erik