Solr - 不区分大小写的搜索不起作用 [英] Solr - case-insensitive search do not work
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问题描述
我想对 solr 中的字段 myfield 应用不区分大小写的搜索.
I want to apply case-insensitive search for field myfield in solr.
我为此在谷歌上搜索了一下，我发现，我需要将 LowerCaseFilterFactory 应用于字段类型，并且字段应该是 solr.TextFeild.
I googled a bit for that , and i found that , i need to apply LowerCaseFilterFactory to Field Type and field should be of 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.
I applied that in my schema.xml and re-index the data, then also my search seems to be case-sensitive.
下面是我执行的搜索.
http://localhost:8080/solr/select?q=myfield:"cloud university"&hl=on&hl.snippets=99&hl.fl=myfield
下面是字段类型的定义
<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.
Not sure , what is wrong with this. Please help me to resolve this.
谢谢
编辑
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>
推荐答案
你应该把 solr.LowerCaseFilterFactory 放在单词 delimiter 之前，因为大写在小写字母的中间，反之亦然会触发单词 delimiter
You should put solr.LowerCaseFilterFactory before the word delimiter because caps in the middle of lower caps or vice versa triggers the word delimiter
这篇关于Solr - 不区分大小写的搜索不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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