Hi,
I'm running solr-tomcat 1.4.0 on Ubuntu and have an issue with the
sorting of results. According to this page
http://web.archiveorange.com/archive/v/AAfXfzy5Tm1uDy5mYW3B I should be
able to configure the LowerCaseFilterFactory to ensure results will be
indexed and returned in a case insensitive means, however this does not
appear to be working for me. Is someone able to check my field config to
confirm it is ok (and if anyone has any advice on making this work it
would be appreciated - my issue is the same as that in the provided link
(that is, upper case and lower case are being ordered separately instead
of being interspersed). The sort field I'm using is of type text as
defined below.
The text field type is configured 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"
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>
When I sort on a primaryName field (which is a "text" field as define
above) for example, I get records listed out of order as in the
following example:
- Withers, Alfred Robert (1863–1956)
- Young, Charles (1838–1916)
- de Little, Ernest (1868–1926)
- de Pledge, Thomas Frederick (1867–1954)
- von Bibra, William (1876–1926)
I imagine I'm missing something obvious, the obvious workaround is a
namesort field however from the above post it looks like this can be
avoided.
Scott.
