Solr - case-insensitive search do not work
case-insensitive, solr, solr-schema
Solution
You should put solr.LowerCaseFilterFactory before the word delimiter because caps in the middle of lower caps or vice versa triggers the word delimiter
Problem
I want to apply case-insensitive search for field `myfield` in solr. 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`. I applied that in my `schema.xml` and re-index the data, then also my search seems to be case-sensitive. Below is search that i perform. ``` http://localhost:8080/solr/select?q=myfield:"cloud university"&hl=on&hl.snippets=99&hl.fl=myfield ``` Below is definition for field type ``` <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> ``` and below is my field definition ``` <field name="myfield" type="text_en_splitting" indexed="true" stored="true" /> ``` Not sure , what is wrong with this. Please help me to resolve this. Thanks EDIT Debug Query ``` <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> ```