我想在solr。
中对字段myfield
应用不区分大小写的搜索
我搜索了一下,我发现,我需要将LowerCaseFilterFactory
应用于字段类型,字段应为solr.TextFeild
。
我在我的schema.xml
中应用了它并重新索引数据,然后我的搜索似乎也区分大小写。
以下是我执行的搜索。
http://localhost:8080/solr/select?q=myfield:"cloud university"&hl=on&hl.snippets=99&hl.fl=myfield
以下是字段类型
的定义 <fieldType name="text_en_splitting" class="solr.TextField" positionIncrementGap="100" autoGeneratePhraseQueries="true">
<analyzer type="index">
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<!-- in this example, we will only use synonyms at query time
<filter class="solr.SynonymFilterFactory" synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
-->
<!-- Case insensitive stop word removal.
add enablePositionIncrements=true in both the index and query
analyzers to leave a 'gap' for more accurate phrase queries.
-->
<filter class="solr.StopFilterFactory"
ignoreCase="true"
words="stopwords_en.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.KeywordMarkerFilterFactory" protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</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_en.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.KeywordMarkerFilterFactory" protected="protwords.txt"/>
<filter class="solr.PorterStemFilterFactory"/>
</analyzer>
</fieldType>
以下是我的字段定义
<field name="myfield" type="text_en_splitting" indexed="true" stored="true" />
不确定,这有什么问题。 请帮我解决这个问题。
由于
修改
调试查询
<lst name="debug">
<str name="rawquerystring">
"cloud university" AND guid:268406b6-db65-49da-848a-c59248f170db
</str>
<str name="querystring">
"cloud university" AND guid:268406b6-db65-49da-848a-c59248f170db
</str>
<str name="parsedquery">
+PhraseQuery(CC:"cloud univers") +guid:268406b6-db65-49da-848a-c59248f170db
</str>
<str name="parsedquery_toString">
+CC:"cloud univers" +guid:268406b6-db65-49da-848a-c59248f170db
</str>
<lst name="explain">
<str name="KSYS_20120805_1100">
12.572915 = (MATCH) sum of: 0.03595598 = weight(CC:"cloud univers" in 1560524), product of: 0.51819557 = queryWeight(CC:"cloud univers"), product of: 8.881522 = idf(CC: cloud=4798 univers=625207) 0.05834536 = queryNorm 0.06938689 = fieldWeight(CC:"cloud univers" in 1560524), product of: 1.0 = tf(phraseFreq=1.0) 8.881522 = idf(CC: cloud=4798 univers=625207) 0.0078125 = fieldNorm(field=CC, doc=1560524) 12.536959 = (MATCH) weight(guid:268406b6-db65-49da-848a-c59248f170db in 1560524), product of: 0.85526216 = queryWeight(guid:268406b6-db65-49da-848a-c59248f170db), product of: 14.658615 = idf(docFreq=1, maxDocs=1709587) 0.05834536 = queryNorm 14.658615 = (MATCH) fieldWeight(guid:268406b6-db65-49da-848a-c59248f170db in 1560524), product of: 1.0 = tf(termFreq(guid:268406b6-db65-49da-848a-c59248f170db)=1) 14.658615 = idf(docFreq=1, maxDocs=1709587) 1.0 = fieldNorm(field=guid, doc=1560524)
</str>
</lst>
<str name="QParser">LuceneQParser</str>
<lst name="timing">
<double name="time">60.0</double>
<lst name="prepare">
<double name="time">1.0</double>
<lst name="org.apache.solr.handler.component.QueryComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.FacetComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.MoreLikeThisComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.HighlightComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.StatsComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.DebugComponent">
<double name="time">0.0</double>
</lst>
</lst>
<lst name="process">
<double name="time">59.0</double>
<lst name="org.apache.solr.handler.component.QueryComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.FacetComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.MoreLikeThisComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.HighlightComponent">
<double name="time">57.0</double>
</lst>
<lst name="org.apache.solr.handler.component.StatsComponent">
<double name="time">0.0</double>
</lst>
<lst name="org.apache.solr.handler.component.DebugComponent">
<double name="time">2.0</double>
</lst>
</lst>
</lst>
</lst>
答案 0 :(得分:6)
你应该在单词分隔符之前放置solr.LowerCaseFilterFactory,因为在大写字母中间的大写字母或反之亦然触发单词分隔符
答案 1 :(得分:1)
我建议你应该使用分析工具,看看如何索引表达式以及如何搜索表达式。
http://localhost:8983/solr/admin/analysis.jsp?highlight=on
我认为 WordDelimiterFilterFactory 可能存在问题(在查询和索引中有所不同),但这只是猜测。
在工具栏中选择 text_en_splitting ,然后输入字段值索引ClOUD UNIVERSITY
和字段值查询cloud university
。同时选择详细输出,看看你得到了什么。