You could also consider using EdgeNGramFilterFactory at index time, which
can index all or some of the prefixes for each term, so that a query of
"prod" would find "product", "production", etc.
See:
http://lucene.apache.org/core/4_1_0/analyzers-common/org/apache/lucene/analysis/ngram/EdgeNGramFilterFactory.html
Set minGramSize="3" or 4 (your case) or more to minimize lots of short
prefixes.
-- Jack Krupansky
-----Original Message-----
From: Van Tassell, Kristian
Sent: Tuesday, March 05, 2013 12:18 PM
To: solr-user@lucene.apache.org
Subject: Unable to match partial word
I'm doing a search for "prod" and would assume it would pull back matches
for product, production, etc. but I get zero hits. Any ideas?
Here is my field type:
<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="1"
catenateNumbers="1" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.SnowballPorterFilterFactory"
language="English" protected="protwords.txt"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.SynonymFilterFactory"
synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true"
/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1" generateNumberParts="1" catenateWords="0"
catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.SnowballPorterFilterFactory"
language="English" protected="protwords.txt"/>
</analyzer>
</fieldType>
