ElasticSearch中如何让query should等同于filter should

快来打我* 2022-09-19 12:12 122阅读 0赞

**bool query**

<table> 
 <tbody> 
  <tr> 
   <td> <p> <code>must</code></p> </td> 
   <td> <p> The clause (query) must appear in matching documents.</p> </td> 
  </tr> 
  <tr> 
   <td> <p> <code>should</code></p> </td> 
   <td> <p> The clause (query) should appear in the matching document. In a boolean query with no&nbsp;<code>must</code>&nbsp;clauses, one or more&nbsp;<code>should</code>&nbsp;clauses must match a document. The minimum number of should clauses to match can be set using the&nbsp;<a href="http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-minimum-should-match.html" title="Minimum Should Match" rel="nofollow"><code>minimum_should_match</code></a>parameter.</p> </td> 
  </tr> 
  <tr> 
   <td> <p> <code>must_not</code></p> </td> 
   <td> <p> The clause (query) must not appear in the matching documents.</p> </td> 
  </tr> 
 </tbody> 
</table>

The bool query also supports `disable_coord` parameter (defaults to `false`). Basically the coord similarity computes a score factor based on the fraction of all query terms that a document contains. See Lucene `BooleanQuery` for >\{  
    "bool" : \{  
        "must" : \{  
            "term" : \{  "user" : "kimchy" \}  
        \},  
        "must\_not" : \{  
            "range" : \{  
                "age" : \{  "from" : 10, "to" : 20 \}  
            \}  
        \},  
        "should" : \[  
            \{  
                "term" : \{  "tag" : "wow" \}  
            \},  
            \{  
                "term" : \{  "tag" : "elasticsearch" \}  
            \}  
        \],  
        "minimum\_should\_match" : 1,  
        "boost" : 1.0  
    \}  
\}

本文出自：  
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html

minimum\_should\_match 使用效果：bool query 中的should条件会过滤，相当于bool filter中should；且只能紧跟bool query中的should后面使用，其它位置会报异常