Solr - 如何提升 Solr 中的字段？没有得到正确的查询

Question

我正在使用 Solr 1.4.1。我需要提升一个领域。我的 schema.xml 如下:

<?xml version="1.0" ?>
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 this work for additional information regarding copyright ownership.
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<schema name="default" version="1.1">
  <types>
    <fieldtype name="string"  class="solr.StrField" sortMissingLast="true" omitNorms="true"/>
    <fieldType name="boolean" class="solr.BoolField" sortMissingLast="true" omitNorms="true"/>

    <!-- Numeric field types that manipulate the value into
     a string value that isn't human-readable in its internal form,
     but with a lexicographic ordering the same as the numeric ordering,
     so that range queries work correctly. -->
    <fieldType name="sint" class="solr.SortableIntField" sortMissingLast="true" omitNorms="true"/>
    <fieldType name="slong" class="solr.SortableLongField" sortMissingLast="true" omitNorms="true"/>
    <fieldType name="sfloat" class="solr.SortableFloatField" sortMissingLast="true" omitNorms="true"/>
    <fieldType name="sdouble" class="solr.SortableDoubleField" sortMissingLast="true" omitNorms="true"/>

    <fieldType name="date" class="solr.DateField" sortMissingLast="true" omitNorms="true"/>

    <fieldType name="text" class="solr.TextField" positionIncrementGap="100">
      <analyzer type="index">
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
    <!-- in this example, we will only use synonyms at query time
    <filter class="solr.SynonymFilterFactory" synonyms="index_synonyms.txt" ignoreCase="true" expand="false"/>
    -->
    <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"/>
    <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="1" catenateNumbers="1" catenateAll="0"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EnglishPorterFilterFactory" protected="protwords.txt"/>
    <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"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.EnglishPorterFilterFactory" protected="protwords.txt"/>
    <filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
      </analyzer>
    </fieldType>

    <fieldType name="text_ws" class="solr.TextField" positionIncrementGap="100">
      <analyzer>
    <tokenizer class="solr.WhitespaceTokenizerFactory"/>
      </analyzer>
    </fieldType>

    <fieldType name="ngram" class="solr.TextField" >
      <analyzer type="index">
    <tokenizer class="solr.KeywordTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
    <filter class="solr.NGramFilterFactory" minGramSize="3" maxGramSize="15" />
      </analyzer>
      <analyzer type="query">
    <tokenizer class="solr.KeywordTokenizerFactory"/>
    <filter class="solr.LowerCaseFilterFactory"/>
      </analyzer>
    </fieldType>

    <fieldType name="edge_ngram" class="solr.TextField" positionIncrementGap="1">
      <analyzer type="index">
    <tokenizer class="solr.WhitespaceTokenizerFactory" />
    <filter class="solr.LowerCaseFilterFactory" />
    <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
    <filter class="solr.EdgeNGramFilterFactory" minGramSize="2" maxGramSize="15" side="front" />
      </analyzer>
      <analyzer type="query">
    <tokenizer class="solr.WhitespaceTokenizerFactory" />
    <filter class="solr.LowerCaseFilterFactory" />
    <filter class="solr.WordDelimiterFilterFactory" generateWordParts="1" generateNumberParts="1" catenateWords="0" catenateNumbers="0" catenateAll="0" splitOnCaseChange="1"/>
      </analyzer>
    </fieldType>
  </types>

  <fields>   
    <!-- general -->
    <field name="id" type="string" indexed="true" stored="true" multiValued="false" required="true"/>
    <field name="django_ct" type="string" indexed="true" stored="true" multiValued="false" />
    <field name="django_id" type="string" indexed="true" stored="true" multiValued="false" />

    <dynamicField name="*_i"  type="sint"    indexed="true"  stored="true"/>
    <dynamicField name="*_s"  type="string"  indexed="true"  stored="true"/>
    <dynamicField name="*_l"  type="slong"   indexed="true"  stored="true"/>
    <dynamicField name="*_t"  type="text"    indexed="true"  stored="true"/>
    <dynamicField name="*_b"  type="boolean" indexed="true"  stored="true"/>
    <dynamicField name="*_f"  type="sfloat"  indexed="true"  stored="true"/>
    <dynamicField name="*_d"  type="sdouble" indexed="true"  stored="true"/>
    <dynamicField name="*_dt" type="date"    indexed="true"  stored="true"/>

    <field name="location_ad" type="text" indexed="true" stored="true" multiValued="false" />
    <field name="text" type="text" indexed="true" stored="true" multiValued="false" />
    <field name="location_ad_exact" type="string" indexed="true" stored="true" multiValued="false" />
    <field name="date_inserted" type="date" indexed="true" stored="true" multiValued="false" />
    <field name="zone_ad_exact" type="string" indexed="true" stored="true" multiValued="false" />
    <field name="country_ad" type="text" indexed="true" stored="true" multiValued="false" />
    <field name="job_description" type="text" indexed="true" stored="true" multiValued="false" />
    <field name="zone_ad" type="text" indexed="true" stored="true" multiValued="false" />
    <field name="job_title" type="text" indexed="true" stored="true" multiValued="false" />
  </fields>

  <!-- field to use to determine and enforce document uniqueness. -->
  <uniqueKey>id</uniqueKey>
  <!-- field for the QueryParser to use when an explicit fieldname is absent -->
  <defaultSearchField>text</defaultSearchField>
  <!-- SolrQueryParser configuration: defaultOperator="AND|OR" -->
  <solrQueryParser defaultOperator="AND" />
</schema>

我需要执行以下操作:我需要更加重视“job_title”字段。例如，如果我正在搜索“程序员”一词，我需要首先显示在“job_title”字段中按日期排序的结果中包含“程序员”的结果，然后是在“工作描述”字段。最好举个例子，我的英语不是世界上最好的；)

我有这个数据:

job_title                | job_description                    | date_inserted
programmer               | job for IT guys                    | 10-Nov-2011
IT Python                | for python programmer              | 12-Nov-2011
PHP programmer           | PHP programming                    | 08-Nov-2011

例如，我需要在搜索“程序员”一词时更加重视“job_title”字段，但也会在结果中显示“job_description”字段中包含“程序员”一词的文档。我还需要重视“date_inserted”字段，以便结果显示如下:

job_title                | job_description                    | date_inserted
programmer               | job for IT guys                    | 10-Nov-2011
PHP programmer           | PHP programming                    | 08-Nov-2011
IT Python                | for python programmer              | 12-Nov-2011

我正在做这样的查询:

/?facet=on&sort=date_inserted+desc&fl=*+score&start=0&q=programmer&bf=job_title:programmer^1.50&facet.field=location_ad_exact&facet.field=zone_ad_exact&fq=django_ct:(myapp.jobsadstext)&rows=20

但是这个查询的结果不是我需要的。

谁能告诉我实现结果需要遵循的轨迹？

最好的问候，

Answer 1

1. 您必须使用 DisMax 查询解析器“defType=dismax”)才能使用提升。
2. 使用 qf 参数进行字段查询(在您的示例中，您使用的是 bf - boost 函数)

http://wiki.apache.org/solr/DisMaxQParserPlugin#qf_.28Query_Fields.29