Solr 搜索没有给出单个词项的准确结果

Question

I am a very beginner in solr search queries where I am trying to get exact results for my given term. I am getting exact result for terms which have more than one word. But for terms which have only one word I am not getting exact search result. Before down voting or closing this question consider the scenario. I am asking exact search for single word.

For ex

1. If I search "ship to add" I get result ship to address

2. Plant: I get results like Plant Number, Plant Type, Plant description,and then Plant I want my Exact word Plant to come first then I want other related searches to come

Approaches I have tried

/query?q=(name:"PLant")&stopwords=true           //giving output I mentiond above

/query?q=(name:"^PLant$")&stopwords=true        //not giving any output

/query?q="PLant"&stopwords=true                //giving fuzzy output

Any help will be appreciated.

Answer 1

You need to use the string as fieldtype for your field name .

Apply the String as fieldtype and reindex the data.

<field name="name" type="string" indexed="true" stored="true" required="true" multiValued="false" />

String stores the word/sentence as an exact string without performing any tokenization on it. Its useful in cases for storing exact matches, eg, for faceting, sorting.

Opposite of string type is text . Text does the tokenization of data, performs processing such as lower-casing etc. It is helpful in case when we want to match part of a sentence.

If you want achieve the lowercase search then use the below fieldtype for you field.

<fieldType name="forExactMatch" class="solr.TextField" sortMissingLast="true" omitNorms="true">
      <analyzer>
        <tokenizer class="solr.KeywordTokenizerFactory"/>
        <filter class="solr.LowerCaseFilterFactory" />
      </analyzer>
    </fieldType>

Then your field defination will look like below

<field name="name" type="forExactMatch" indexed="true" stored="true"/>