SOLR - wildcard search with capital letter

问题

I have a problem with SOLR searching. When i`am searching query: dog* everything is ok, but when query is Dog*(with first capital letter), i get no results. Any advice? My config:

<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
  <analyzer type="index">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
    <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0" splitOnCaseChange="0"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
  </analyzer>
  <analyzer type="query">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <filter class="solr.SynonymFilterFactory" synonyms="synonyms.txt" ignoreCase="true" expand="true"/>
    <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
    <filter class="solr.WordDelimiterFilterFactory"  generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="0"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
  </analyzer>
</fieldType>

回答1:

Received answer on another resource. The problem is: http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters"On wildcard and fuzzy searches, no text analysis is performed on the search word."

Hope, this will help someone.

回答2:

Have you tried using EdgeNGrams? See my answer to question 2413946.

来源：https://stackoverflow.com/questions/1840347/solr-wildcard-search-with-capital-letter

标签

solr

wildcard

capitalization