Did you try exactMatchFirst param of FuzzyLookupFactory ? See https://cwiki.apache.org/confluence/display/solr/Suggester
Thanks, Susheel On Sun, Dec 25, 2016 at 6:52 PM, diwakar bhardwaj <bhardwajdiwa...@gmail.com > wrote: > Hi, > > I've implemented a solr suggester with FuzzyLookupFactory and its working > perfectly. Except for a minor glitch, its only treating case sensitive > searches as an exact match. > For example, results for "mumbai" vs "Mumbai" is different. > > This is too restrictive and kind of defeating the purpose of the suggester. > > I've posted this on stackoverflow: > > http://stackoverflow.com/questions/41320424/solr- > fuzzylookupfactory-exactmatch-is-case-sensitive > > Following is the text I posted on stackoverflow > > I have implemented a solr suggester for list of cities and areas. I have > user FuzzyLookupFactory for this. My schema looks like this: > > <fieldType name="suggestTypeLc" class="solr.TextField" > positionIncrementGap="100"> > <analyzer> > <charFilter class="solr.PatternReplaceCharFilterFactory" > pattern="[^a-zA-Z0-9]" replacement=" " /> > <tokenizer class="solr.WhitespaceTokenizerFactory"/> > <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" > ignoreCase="true" expand="true"/> > <filter class="solr.LowerCaseFilterFactory"/> > </analyzer> > </fieldType> > > synonym.txt is used for mapping older city names with new ones, like > Madras=>Chennai, Saigon=>Ho Chi Minh city > > My suggester definition looks like this: > > <searchComponent name="suggest" class="solr.SuggestComponent"> > <lst name="suggester"> > <str name="name">suggestions</str> > <str name="lookupImpl">FuzzyLookupFactory</str> > <str name="dictionaryImpl">DocumentDictionaryFactory</str> > <str name="field">searchfield</str> > <str name="weightField">searchscore</str> > <str name="suggestAnalyzerFieldType">suggestTypeLc</str> > <str name="buildOnStartup">false</str> > <str name="buildOnCommit">false</str> > <str name="storeDir">autosuggest_dict</str> > </lst> > </searchComponent> > > My request handler looks like this: > > <requestHandler name="/suggest" class="solr.SearchHandler" > startup="lazy"> > <lst name="defaults"> > <str name="suggest">true</str> > <str name="suggest.count">10</str> > <str name="suggest.dictionary">suggestions</str> > <str name="suggest.dictionary">results</str> > </lst> > <arr name="components"> > <str>suggest</str> > </arr> > </requestHandler> > > Now the problem is that suggester is showing the exact matches first But it > is case sensitive. for eg, > > /suggest?suggest.q=mumbai (starting with a lower case "m") > > will give, exact result at 4th place: > > { > "responseHeader":{ > "status":0, > "QTime":19}, > "suggest":{ > "suggestions":{ > "mumbai":{ > "numFound":10, > "suggestions":[{ > "term":"Mumbai Domestic Airport", > "weight":11536}, > { > "term":"Mumbai Chhatrapati Shivaji Intl Airport", > "weight":11376}, > { > "term":"Mumbai Pune Highway", > "weight":2850}, > { > "term":"Mumbai", > "weight":2248}, > ..... > > Whereas, calling /suggest?suggest.q=Mumbai (starting with an upper case > "M") > > is giving exact result at 1st place: > > { > "responseHeader":{ > "status":0, > "QTime":16}, > "suggest":{ > "suggestions":{ > "Mumbai":{ > "numFound":10, > "suggestions":[{ > "term":"Mumbai", > "weight":2248}, > { > "term":"Mumbai Domestic Airport", > "weight":11536}, > { > "term":"Mumbai Chhatrapati Shivaji Intl Airport", > "weight":11376}, > { > "term":"Mumbai Pune Highway", > "weight":2850}, > ... > > What am I missing here ? What can be done to make Mumbai as the first > result even if it is called from a lower case "mumbai" as query. I thought > the case sensitivity is being handled by "suggestTypeLc" field I've > generated. > -- > Ciao > Diwakar >
