Good morning Solr compatriots,
I'm using Solr4.0Final and I have synonyms.txt in my schema (only at query
time) like so:
<fieldType name="text_general" class="solr.TextField"
positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1"
generateNumberParts="1"
catenateWords="0"
catenateNumbers="0"
catenateAll="0"
preserveOriginal="1"
/>
<filter class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KStemFilterFactory" />
</analyzer>
<analyzer type="query">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1"
generateNumberParts="1"
catenateWords="0"
catenateNumbers="0"
catenateAll="0"
preserveOriginal="1"
/>
<filter class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KStemFilterFactory" />
</analyzer>
<analyzer type="select">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.WordDelimiterFilterFactory"
generateWordParts="1"
generateNumberParts="1"
catenateWords="0"
catenateNumbers="0"
catenateAll="0"
preserveOriginal="1"
/>
<filter class="solr.StandardTokenizerFactory"/>
<filter class="solr.StopFilterFactory" ignoreCase="true"
words="stopwords.txt" enablePositionIncrements="true" />
<filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt"
ignoreCase="true" expand="true"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.KStemFilterFactory" />
</analyzer>
</fieldType>
However, when I try to call my /elevate handler; the synonyms are factored
in but none of the results say [elevated]=true
I'm assuming this is because the elevation must be an exact match and the
synonyms are expanding it beyond that so elevation is thwarted.
For example, if I have TV elevated and TV is also in synonyms.txt then the
query gets expanded to text:TV text:television.
Is there any way to get the elevation to work correctly with synonyms?
BTW
(I did find a custom synonym handler that works but this will require
significant changes to the front end and I'm not sure it will break if and
when we finally upgrade solr)
Here's the custom synonym filter (I had to drop the code in and rebuild
solr.war to get it to work):
https://github.com/healthonnet/hon-lucene-synonyms
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