Try edismax with the PF2 option, which will automatically boost documents
that contains occurrences of adjacent terms as you have suggested.
See:
http://wiki.apache.org/solr/ExtendedDisMax
-- Jack Krupansky
-----Original Message-----
From: Pranav Prakash
Sent: Wednesday, August 01, 2012 1:21 PM
To: solr-user@lucene.apache.org
Subject: Exact match on few fields, fuzzy on others
Hi Folks,
I am using Solr 3.4 and my document schema has attributes - title,
transcript, author_name. Presently, I am using DisMax to search for a user
query across transcript. I would also like to do an exact search on
author_name so that for a query "Albert Einstein", I would want to get all
the documents which contain Albert or Einstein in transcript and also those
documents which have author_name exactly as 'Albert Einstein'.
Can we do this by dismax query parser? The schema for both the fields are
below:
<fieldType name="text_commongrams" class="solr.TextField">
<analyzer>
<charFilter class="solr.HTMLStripCharFilterFactory" />
<tokenizer class="solr.StandardTokenizerFactory" />
<filter class="solr.RemoveDuplicatesTokenFilterFactory" />
<filter class="solr.TrimFilterFactory" />
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.SnowballPorterFilterFactory" language="English"
protected="protwords.txt"/>
<filter class="solr.SynonymFilterFactory"
synonyms="synonyms.txt"
ignoreCase="true"
expand="true" />
<filter class="solr.CommonGramsFilterFactory"
words="stopwords_en.txt"
ignoreCase="true" />
<filter class="solr.StopFilterFactory"
words="stopwords_en.txt"
ignoreCase="true" />
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1"
generateNumberParts="1"
catenateWords="1"
catenateNumbers="1"
catenateAll="0"
preserveOriginal="1" />
</analyzer>
</fieldType>
<fieldType name="text_standard" class="solr.TextField">
<analyzer>
<charFilter class="solr.HTMLStripCharFilterFactory" />
<tokenizer class="solr.StandardTokenizerFactory" />
<filter class="solr.TrimFilterFactory" />
<filter class="solr.LowerCaseFilterFactory" />
<filter class="solr.StopFilterFactory"
words="stopwords_en.txt"
ignoreCase="true" />
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1"
generateNumberParts="1"
catenateWords="1"
catenateNumbers="1"
catenateAll="0"
preserveOriginal="1" />
<filter class="solr.SynonymFilterFactory"
synonyms="synonyms.txt"
ignoreCase="true"
expand="false" />
<filter class="solr.RemoveDuplicatesTokenFilterFactory" />
<filter class="solr.SnowballPorterFilterFactory" language="English"
protected="protwords.txt"/>
</analyzer>
</fieldType>
<field name="title" type="text_commongrams" indexed="true"
stored="true" multiValued="false" />
<field name="author_name" type="text_standard" indexed="true"
stored="false" />
--
*Pranav Prakash*
"temet nosce"
