I tried to setup an autosuggest feature with multiple dictionaries for title , author and publisher fields.
I used the solr.EdgeNGramFilterFactory to optimize the performance of the auto suggest. I have a document in the index with title: Romana. When I test the text analysis for auto suggest (on filed of title_suggest_ngram): ENGTF textraw_bytesstartendpositionLengthtypeposition rom[72 6f 6d]061word1roma[72 6f 6d 61]061word1roman[72 6f 6d 61 6e]061word1 romana[72 6f 6d 61 6e 61]061word1 If I try to run http://localhost:8983/solr/bandw/suggest?q=Roma, I get: <response> <lst name="responseHeader"> <int name="status">0</int> <int name="QTime">1</int> </lst> <lst name="suggest"> <lst name="suggest_publisher"> <lst name="Roma"> <int name="numFound">0</int> <arr name="suggestions"/> </lst> </lst> <lst name="suggest_title"> <lst name="Roma"> <int name="numFound">0</int> <arr name="suggestions"/> </lst> </lst> <lst name="suggest_author"> <lst name="Roma"> <int name="numFound">0</int> <arr name="suggestions"/> </lst> </lst> </lst> </response> my relevant field definitions: <field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" omitNorms="true" /> <field name="author" type="text_hu" indexed="true" stored="true" multiValued="true"/> <field name="title" type="text_hu" indexed="true" stored="true" multiValued="false"/> <field name="subtitle" type="text_hu" indexed="true" stored="true" multiValued="false"/> <field name="publisher" type="text_hu" indexed="true" stored="true" multiValued="false"/> <field name="title_suggest_ngram" type="text_hu_suggest_ngram" indexed="true" stored="false" multiValued="false" omitNorms="true"/> <field name="author_suggest_ngram" type="text_hu_suggest_ngram" indexed="true" stored="false" multiValued="false" omitNorms="true"/> <field name="publisher_suggest_ngram" type="text_hu_suggest_ngram" indexed="true" stored="false" multiValued="false" omitNorms="true"/> <copyField source="title" dest="title_suggest_ngram"/> <copyField source="author" dest="author_suggest_ngram"/> <copyField source="publisher" dest="publisher_suggest_ngram"/> My EdgeNGram related field type definition: <fieldType name="text_hu_suggest_ngram" class="solr.TextField" positionIncrementGap="100"> <analyzer type="index"> <tokenizer class="solr.StandardTokenizerFactory"/> <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords_hu.txt" /> <filter class="solr.LowerCaseFilterFactory"/> <filter class="solr.EdgeNGramFilterFactory" minGramSize="3" maxGramSize="8"/> </analyzer> <analyzer type="query"> <tokenizer class="solr.StandardTokenizerFactory"/> <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords_hu.txt" /> <filter class="solr.LowerCaseFilterFactory"/> </analyzer> </fieldType> My requesthandler for suggest: <requestHandler name="/suggest" class="solr.SearchHandler" startup="lazy"> <lst name="defaults"> <str name="suggest">true</str> <str name="suggest.count">5</str> <str name="suggest.dictionary">suggest_author</str> <str name="suggest.dictionary">suggest_title</str> <str name="suggest.dictionary">suggest_publisher</str> </lst> <arr name="components"> <str>suggest</str> </arr> </requestHandler> And finally my searchcomponent: <searchComponent name="suggest" class="solr.SuggestComponent"> <lst name="suggester"> <str name="name">suggest_title</str> <str name="lookupImpl">FSTLookupFactory</str> <str name="dictionaryImpl">DocumentDictionaryFactory</str> <str name="field">title_suggest_ngram</str> <str name="wightField">price</str> <str name="builOnStartup">true</str> <str name="buildOnCommit">true</str> </lst> <lst name="suggester"> <str name="name">suggest_author</str> <str name="lookupImpl">FSTLookupFactory</str> <str name="dictionaryImpl">DocumentDictionaryFactory</str> <str name="field">author_suggest_ngram</str> <str name="wightField">price</str> <str name="builOnStartup">true</str> <str name="buildOnCommit">true</str> </lst> <lst name="suggester"> <str name="name">suggest_publisher</str> <str name="lookupImpl">FSTLookupFactory</str> <str name="dictionaryImpl">DocumentDictionaryFactory</str> <str name="field">publisher_suggest_ngram</str> <str name="wightField">price</str> <str name="buildOnCommit">true</str> </lst> </searchComponent> If I change the search component definition to use title field instead of title_suggest_ngram tahn I manage to get suggest results only if my title field starts with the string specified in q parameter. As a filed level autosuggester I would suggest also those matches which are not the first term of the title but any of them. What shall I make to use autosuggest correctly? -- <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu>Roland Szűcs <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu>Connect with me on Linkedin <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24> <https://bookandwalk.hu/>CEOPhone: +36 1 210 81 13Bookandwalk.hu <https://bokandwalk.hu/>
