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Posted to dev@lucene.apache.org by "Christoph Straßer (JIRA)" <ji...@apache.org> on 2013/05/29 15:25:20 UTC
[jira] [Updated] (SOLR-4873) star-wildcard (*) does not work
together with stemming
[ https://issues.apache.org/jira/browse/SOLR-4873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christoph Straßer updated SOLR-4873:
------------------------------------
Attachment: tochter4.htm
tochter3.htm
tochter2.htm
tochter1.htm
Sample-files for reproducing the issue.
> star-wildcard (*) does not work together with stemming
> ------------------------------------------------------
>
> Key: SOLR-4873
> URL: https://issues.apache.org/jira/browse/SOLR-4873
> Project: Solr
> Issue Type: Bug
> Components: search
> Affects Versions: 4.2
> Environment: Windows 7, Java 7
> Reporter: Christoph Straßer
> Attachments: tochter1.htm, tochter2.htm, tochter3.htm, tochter4.htm
>
>
> Without using a stemming-filter (e.g. solr.SnowballPorterFilterFactory)
> http://localhost:8983/solr/collection1/select?q=Tochter*
> matches "Tochter", "Tochterunternehmen" or "Töchter".
> <fieldType name="text_general" class="solr.TextField" positionIncrementGap="100">
> <analyzer type="index">
> <charFilter class="solr.MappingCharFilterFactory" mapping="mapping-ISOLatin1Accent.txt"/>
> <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="0"/>
> <filter class="solr.LowerCaseFilterFactory"/>
> </analyzer>
> With using a stemming-filter the same query
> http://localhost:8983/solr/collection1/select?q=Tochter*
> only matches "Tochterunternehmen" but not "Tochter" or "Töchter". (Stemming is applied for type="index" and type="query")
> <fieldType name="text_general" class="solr.TextField" positionIncrementGap="100">
> <analyzer type="index">
> <charFilter class="solr.MappingCharFilterFactory" mapping="mapping-ISOLatin1Accent.txt"/>
> <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="0"/>
> <filter class="solr.LowerCaseFilterFactory"/>
> <filter class="solr.SnowballPorterFilterFactory" language="German2" protected="protwords.txt" />
> </analyzer>
>
> Sample-Files attached.
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