Solr Suggester - case insensitive

Question

I am trying to work on an autocomplete feature on Solr and the way I found how to do it, is to use Solr Suggester. However, it does not work as expected. If someone invokes http://localhost:8983/solr/techproducts/suggest?suggest=true&suggest.build=true&suggest.dictionary=mySuggester&wt=json&suggest.q=a while the index has a field that starts with Apple it will not come out. I have request with suggest.q=A (with an upper case).

Is there a way to make Solr Suggester case-insensitive?

Here are my configurations:

<searchComponent name="suggest" class="solr.SuggestComponent">
   <lst name="suggester">
      <str name="name">mySuggester</str>
      <str name="lookupImpl">FuzzyLookupFactory</str>
      <str name="dictionaryImpl">DocumentDictionaryFactory</str>
      <str name="field">autocomp</str>
      <str name="weightField">price</str>
      <str name="suggestAnalyzerFieldType">string</str>
   </lst>
</searchComponent>

Here are relevent parts of the schema:

<fieldType class="solr.TextField" name="textSuggest" positionIncrementGap="100">
   <analyzer>
      <tokenizer class="solr.StandardTokenizerFactory"/>
      <filter class="solr.StandardFilterFactory"/>
      <filter class="solr.LowerCaseFilterFactory"/>
   </analyzer>
</fieldType>

<field name="autocomp" type="textSuggest" indexed="true" stored="true" multiValued="true"/>

<copyField source="title" dest="autocomp"/>

Thanks

Ammar Ammar · Accepted Answer · 2015-10-13T02:42:44

I found out that the issue is with this part of searchComponent configurations:

<str name="suggestAnalyzerFieldType">string</str>

You have to put the field you are using for analyzing the text. In my case it was:

<str name="suggestAnalyzerFieldType">text_general</str>

Solr Suggester - case insensitive

2 Answers