string - Solr:方面计数索引不能是字符串？

Question

创建构面值列表时，我的架构中有以下内容:

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

我想要存储的facet是“1_1”，“2_43”，“2_99”等字符串。但是，当我查看facet计数返回的数据时，下划线似乎已被删除:

[facet_fields] => Array
        (
            [contract_facet_sector_ids] => Array
                (
                    [11] => 0
                    [243] => 0
                    [299] => 0

有人可以帮我解决我这里出错的地方吗？ “文本”字段类型的定义如下:

<fieldType name="text" class="solr.TextField" positionIncrementGap="100">
    <analyzer type="index">
        <tokenizer class="solr.WhitespaceTokenizerFactory" />
        <filter class="solr.StopFilterFactory"
            ignoreCase="true" words="stopwords.txt"
            enablePositionIncrements="true" />
        <filter class="solr.WordDelimiterFilterFactory" 
            generateWordParts="1" generateNumberParts="1" 
            catenateWords="1" catenateNumbers="1" 
            catenateAll="0" splitOnCaseChange="1" />
        <filter class="solr.LowerCaseFilterFactory" />
        <filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt" />
    </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"
            enablePositionIncrements="true" />
        <filter class="solr.WordDelimiterFilterFactory" 
            generateWordParts="1" generateNumberParts="1" 
            catenateWords="0" catenateNumbers="0" 
            catenateAll="0" splitOnCaseChange="1" />
        <filter class="solr.LowerCaseFilterFactory" />
        <filter class="solr.SnowballPorterFilterFactory" language="English" protected="protwords.txt" />
    </analyzer>
</fieldType>

非常感谢!

塞布

Answer 1

WordDelimiterFilterFactory导致你的下划线被删除。基于以下内容:

Splits words into subwords and performs optional transformations on subword groups. By default, words are split into subwords with the following rules:

split on intra-word delimiters (all non alpha-numeric characters). "Wi-Fi" -> "Wi", "Fi"

...

基于您如何使用此字段的描述 - “我想要存储的方面是字符串...”。我建议您使用下面定义的 string 的 fieldType(来自 Solr 示例)，除非您确实需要应用其他分析器。

<!-- The StrField type is not analyzed, but indexed/stored verbatim. -->
<fieldType name="string" class="solr.StrField" sortMissingLast="true" omitNorms="true"/>