How to ignore accent search in Solr

Question

I am using solr as a search engine. I have a case where a text field contains accent text like "María". When user search with "María", it is giving resut. But when user search with "Maria" it is not giving any result.

My schema definition looks like below:

<fieldtype name="my_text" class="solr.TextField">
       <analyzer type="Index">
           <tokenizer class="solr.WhitespaceTokenizerFactory"/>
           <filter class="solr.LowerCaseFilterFactory"/>
           <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="32" side="front"/>
       </analyzer>
       <analyzer type="query">
           <tokenizer class="solr.WhitespaceTokenizerFactory"/>
           <filter class="solr.LowerCaseFilterFactory"/>

       </analyzer>
</fieldtype>

Please help to solve this issue.

Answer 1

If you're on solr > 3.x you can try using solr.ASCIIFoldingFilterFactory which will change all the accented characters to their unaccented versions from the basic ascii 127-character set.

Remember to put it after any stemming filter you have configured (you're not using one, so you should be ok).

So your config could look like:

<fieldtype name="my_text" class="solr.TextField">
       <analyzer type="Index">
           <tokenizer class="solr.WhitespaceTokenizerFactory"/>
           <filter class="solr.LowerCaseFilterFactory"/>
           <filter class="solr.ASCIIFoldingFilterFactory"/>
           <filter class="solr.EdgeNGramFilterFactory" minGramSize="1" maxGramSize="32" side="front"/>
       </analyzer>
       <analyzer type="query">
           <tokenizer class="solr.WhitespaceTokenizerFactory"/>
           <filter class="solr.LowerCaseFilterFactory"/>
           <filter class="solr.ASCIIFoldingFilterFactory"/>

       </analyzer>
</fieldtype>