Solr 部分和完整字符串匹配 [英] Solr Partial And Full String Match

问题描述

我试图允许在 Solr 中搜索部分字符串，因此如果有人搜索ppopota"，他们会得到与搜索hippopotamus"相同的结果.我上下阅读了文档，觉得我已经用尽了我的选择.到目前为止，我有以下内容:

I am trying to allow searches on partial strings in Solr so if someone searched for "ppopota" they'd get the same result as if they searched for "hippopotamus." I read the documentation up and down and feel like I have exhausted my options. So far I have the following:

定义新的字段类型:

<fieldtype name="testedgengrams" class="solr.TextField">
   <analyzer>
     <tokenizer class="solr.LowerCaseTokenizerFactory"/>
     <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="15" side="front"/>
  </analyzer>
</fieldtype>

定义一个testedgengrams"类型的字段:

Defining a field of type "testedgengrams":

<field name="text_ngrams" type="testedgengrams" indexed="true" stored="false"/>

将 text_ngrams 的内容复制到文本中:

Copying contents of text_ngrams into text:

<copyField source="text_ngrams" dest="text"/>

唉，这行不通.我错过了什么?

Alas, that doesn't work. What am I missing?

推荐答案

您正在使用 EdgeNGramFilterFactory 生成标记 'hi'、'hip'、'hipp' 等，因此它不会匹配 'ppopota'.改用 NGramFilterFactory.

You're using EdgeNGramFilterFactory which generates tokens 'hi', 'hip', 'hipp', etc, so it won't match 'ppopota'. Use NGramFilterFactory instead.

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