Solr suggest exact match

Question

I am trying to make solr return exact match on suggestion, ex:

• spellcheck.q=tota does return total in results but
• spellcheck.q=total does not return total in results.

I am using this field for suggestions:

<fieldType name="textSpellShingle" class="solr.TextField" positionIncrementGap="100">
  <analyzer>
    <tokenizer class="solr.StandardTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.ShingleFilterFactory" maxShingleSize="3" outputUnigrams="true"/>
    <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
  </analyzer>
</fieldType>

Any idea how to make Solr returns exact matches on suggest??

Answer 1

You are using the SpellChecker component, which, as the name indicate, is meant for spellchecking. It returns suggestions for how entry the should be spelled. When the word is spelled correct (which equals a exact match) it returns nothing, which is the reason you dont see the word in the list.

Since Solr 4.7 a new Suggestion component has been added, which is actually implemented for autosuggestion and yields the results you expect.