Question

我搞乱了语法q查询：

如果我写q=*:* - 我看到2个结果。
如果我跳过q - 我没有看到任何内容
如果我写q=price:* - 请参阅2结果
如果我写q=price - 0结果

更新

q=price:0 - 1个结果

您能解释这些查询之间的差异吗？

特别是我想了解第4个变种是什么意思？

索引文件：

add><doc>
  <field name="id">3007WFP</field>
  <field name="name">Dell Widescreen UltraSharp 3007WFP</field>
  <field name="manu">Dell, Inc.</field>
  <!-- Join -->
  <field name="manu_id_s">dell</field>
  <field name="cat">electronics</field>
  <field name="cat">monitor</field>
  <field name="features">30" TFT active matrix LCD, 2560 x 1600, .25mm dot pitch, 700:1 contrast</field>
  <field name="includes">USB cable</field>
  <field name="weight">401.6</field>
  <field name="price">2199</field>
  <field name="popularity">6</field>
  <field name="inStock">true</field>
  <!-- Buffalo store -->
  <field name="store">43.17614,-90.57341</field>
  <field name="cat">XXX</field>
 </doc></add>

<add>
<doc>
  <field name="id">SOLR1000</field>
  <field name="name">Solr, the Enterprise Search Server</field>
  <field name="manu">Apache Software Foundation</field>
  <field name="cat">software</field>
  <field name="cat">search</field>
  <field name="cat">XXX</field>
  <field name="features">Advanced Full-Text Search Capabilities using Lucene</field>
  <field name="features">Optimized for High Volume Web Traffic</field>
  <field name="features">Standards Based Open Interfaces - XML and HTTP</field>
  <field name="features">Comprehensive HTML Administration Interfaces</field>
  <field name="features">Scalability - Efficient Replication to other Solr Search Servers</field>
  <field name="features">Flexible and Adaptable with XML configuration and Schema</field>
  <field name="features">Good unicode support: h&#xE9;llo (hello with an accent over the e)</field>
  <field name="price">0</field>
  <field name="popularity">10</field>
  <field name="inStock">true</field>
  <field name="incubationdate_dt">2006-01-17T00:00:00.000Z</field>
</doc>
</add>

Answer 1

如果您不提供该值，则会将其视为默认值。与第四次查询一样

q=price means it searches the default searchable field having value "price"

这就是为什么你得到0结果，因为没有价格是0值。

Apache solr。查询语法说明

1 个答案: