Solr/Lucene 简单运算符 "or" 误解/在不同领域搜索同一个词

Question

学习 Solr/Lucene 语法，在浏览器中使用 Solr Admin。在那里，我尝试使用以下语法在两个不同的字段中搜索相同的词：

content:myword -> 找到结果

content:myword OR title:existingTitle -> 找到结果

但是

content:myword OR title:myword -> ZERO results found，为什么？是"or".

也试过没有运算符应该等于 "or" ，也试过 "|"和“||”

当我试图在多个字段之一中找到相同的词时会发生这种情况

[编辑]

这是 solr url 请求：

内容：车辆title:fahrzeug http://xxx/solr/core_de/select?q=content%3Afahrzeug%20title%3Afahrzeug

内容：fahrzeug 或 title:fahrzeug http://xxx/solr/core_de/select?q=content%3Afahrzeug%20OR%20title%3Afahrzeug

内容：车辆 | title:fahrzeug http://xxx/solr/core_de/select?q=content%3Afahrzeug%20%7C%20title%3Afahrzeug

{
  "responseHeader":{
    "status":400,
    "QTime":5,
    "params":{
      "q":"content:fahrzeug OR title:fahrzeug",
      "debugQuery":"1"}},
  "error":{
    "metadata":[
      "error-class","org.apache.solr.common.SolrException",
      "root-error-class","org.apache.solr.common.SolrException"],
    "msg":"invalid boolean value: 1",
    "code":400}}

Answer 1

我猜，它的配置是这样的：

尝试： http://www119.pxia.de:8983/solr/core_de/select?fq=content%3Afahrzeug%20title%3Afahrzeug&q=*%3A* - 这个 returns 正确的文件。所以如果只使用过滤，那些文件就在那里。查询使用更复杂的条件，你的默认配置是：

<requestHandler name="/select" class="solr.SearchHandler">
    <lst name="defaults">
        <str name="defType">edismax</str>
        <str name="echoParams">explicit</str>
        <str name="qf">content^40.0 title^5.0 keywords^2.0 tagsH1^5.0 tagsH2H3^3.0 tagsH4H5H6^2.0 tagsInline^1.0</str>
        <str name="pf">content^2.0</str>
        <str name="df">content</str>
        <int name="ps">15</int>

        <str name="mm">2&lt;-35%</str>
        <str name="mm.autoRelax">true</str>
...

解析器和提升可能在这里发挥关键作用。我不熟悉 edixmax 解析器，请检查：documentation 我猜 mm 参数可能是造成这种情况的原因。不管怎样，这很奇怪，OR 不能像我们从布尔代数中使用的那样工作。

"debug":{
"queryBoosting":{
  "q":"title:Home OR content:Perfekt",
  "match":null},
"rawquerystring":"title:Home OR content:Perfekt",
"querystring":"title:Home OR content:Perfekt",
"parsedquery":"+(title:hom content:perfekt)~2 ()",
"parsedquery_toString":"+((title:hom content:perfekt)~2) ()",
"explain":{
  "bf72a75534ba703e4b8dc7194f92ce34223fc0d2/pages/1/0/0/0":"\n4.8893824 = sum of:\n  4.8893824 = sum of:\n    1.9924302 = weight(title:hom in 0) [SchemaSimilarity], result of:\n      1.9924302 = score(doc=0,freq=1.0 = termFreq=1.0\n), product of:\n        1.9924302 = idf, computed as log(1 + (docCount - docFreq + 0.5) / (docFreq + 0.5)) from:\n          1.0 = docFreq\n          10.0 = docCount\n        1.0 = tfNorm, computed as (freq * (k1 + 1)) / (freq + k1) from:\n          1.0 = termFreq=1.0\n          1.2 = parameter k1\n          0.0 = parameter b (norms omitted for field)\n    2.8969522 = weight(content:perfekt in 0) [SchemaSimilarity], result of:\n      2.8969522 = score(doc=0,freq=5.0 = termFreq=5.0\n), product of:\n        1.4816046 = idf, computed as log(1 + (docCount - docFreq + 0.5) / (docFreq + 0.5)) from:\n          2.0 = docFreq\n          10.0 = docCount\n        1.9552802 = tfNorm, computed as (freq * (k1 + 1)) / (freq + k1 * (1 - b + b * fieldLength / avgFieldLength)) from:\n          5.0 = termFreq=5.0\n          1.2 = parameter k1\n          0.75 = parameter b\n          508.3 = avgFieldLength\n          184.0 = fieldLength\n"},
"QParser":"ExtendedDismaxQParser",

检查 "parsedquery":"+(title:hom content:perfekt)~2 ()" 它基本上说，标题和内容都必须存在： Solr operators

Solr/Lucene 简单运算符 "or" 误解/在不同领域搜索同一个词

Solr/Lucene simple operator "or" missunderstanding / Seach same word in differnt fields

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