elasticsearch学习笔记高级篇三在案例中实战基于bool组合多个filter条件搜索

准备数据：

POST /forum/_bulk
{"index": { "_id": 1}}
{"articleID" : "XHDK-A-1293-#fJ3", "userID" : 1, "hidden": false, "postDate": "2017-01-01"}
{"index": { "_id": 2}}
{"articleID" : "KDKE-B-9947-#kL5", "userID" : 1, "hidden": false, "postDate": "2017-01-02"}
{"index": { "_id": 3}}
{"articleID" : "JODL-X-1937-#pV7", "userID" : 2, "hidden": false, "postDate": "2017-01-01"}
{"index": { "_id": 4}}
{"articleID" : "QQPX-R-3956-#aD8", "userID" : 2, "hidden": true, "postDate": "2017-01-02"}

需求

1、搜索发帖日期为 2017-01-01，或者帖子 ID 为 XHDK-A-1293-#fJ3 的帖子，同时要求帖子的发帖日期不能为 2017-01-02

select * from forum
where (post_date = '2017-01-01' or article_id = 'XHDK-A-1293-#fJ3')
and post_date != '2017-01-02'

GET /forum/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "bool": {
          "should": [
            {
              "term": {"postDate": "2017-01-01"}
            },
            {
              "term": {"articleID": "XHDK-A-1293-#fJ3"}
            }
          ],
          "must_not": [
            {
              "term": {"postDate": "2017-01-02"}
            }  
          ]
        }
      }
    }
  }
}

输出：

{
  "took" : 55,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "forum",
        "_type" : "_doc",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "articleID" : "XHDK-A-1293-#fJ3",
          "userID" : 1,
          "hidden" : false,
          "postDate" : "2017-01-01"
        }
      },
      {
        "_index" : "forum",
        "_type" : "_doc",
        "_id" : "3",
        "_score" : 1.0,
        "_source" : {
          "articleID" : "JODL-X-1937-#pV7",
          "userID" : 2,
          "hidden" : false,
          "postDate" : "2017-01-01"
        }
      }
    ]
  }
}

must：标识必须匹配
should: 可以匹配其中一个即可
must_not: 必须不匹配

2、搜索帖子 ID 为 XHDK-A-1293-#fJ3，或者是帖子 ID 为 JODL-X-1937-#pV7 而且发帖日期为 2017-01-01 的帖子

select * from forum
where article_id = 'XHDK-A-1293-#fJ3' or 
(article_id = 'JODL-X-1937-#pV7' and post_date = '2017-01-01')

GET /forum/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "bool": {
          "should": [
            {
              "term": {"articleID": "XHDK-A-1293-#fJ3"}
            },
            {
              "bool": {
                "must": [
                  {
                    "term": {"articleID": "JODL-X-1937-#pV7"}
                  },
                  {
                    "term": {"postDate": "2017-01-01"}
                  }
                ]
              }
            }
          ]
        }
      }
    }
  }
}

输出：

{
  "took" : 7,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 2,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "forum",
        "_type" : "_doc",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "articleID" : "XHDK-A-1293-#fJ3",
          "userID" : 1,
          "hidden" : false,
          "postDate" : "2017-01-01"
        }
      },
      {
        "_index" : "forum",
        "_type" : "_doc",
        "_id" : "3",
        "_score" : 1.0,
        "_source" : {
          "articleID" : "JODL-X-1937-#pV7",
          "userID" : 2,
          "hidden" : false,
          "postDate" : "2017-01-01"
        }
      }
    ]
  }
}