ORDER BY 多个值在特定顺序弹性搜索

Question

我有以下弹性搜索文档结构，客户类型为学生、教师、专业我希望我的搜索结果按学生、教师、专业的顺序排列，即在搜索结果中所有学生的之后是所有教师的然后是所有专业的.

{ "_index": "customer", "_type": "info", "_id": "AWC1xn90RETWF5jlQtczjt", "_version": 1, "_score": 1, "_source": { "name": "name1", "type":"student" } }

{ "_index": "customer", "_type": "info", "_id": "AWC1xnRE23TWF5jlQtczjt", "_version": 1, "_score": 1, "_source": { "name": "name4", "type":"teacher" } }

{ "_index": "customer", "_type": "info", "_id": "AWC1xnRETWF545jlQtczjt", "_version": 1, "_score": 1, "_source": { "name": "name3", "type":"professional" } }

Answer 1

我会通过在索引时为每种类型分配数值来解决这个问题。所以 student=0,teacher=1,professional=2 并将其命名为 type_id 并按此排序。

但是，如果没有这个选项，您可以使用脚本字段

sort: [
  {
    _script: {
      type: 'number',
      script: {
        lang: 'painless',
        inline: 'switch(doc['type'].value){ case "student" return 0; case "teacher" return 1; case "professional" default return -1}',
      },
      order: 'desc',
    },
  }
]

ORDER BY 多个值在特定顺序弹性搜索

ORDER BY multiple values in specific order elastic search

performance

e-commerce

graph-algorithm

elasticsearch

elasticsearch-5