弹性搜索按另一个字段中定义的字段排序

Question

我有两个字段：count（对象）和 countyby（文本）。计数对象有几个数字类型的嵌套属性：

"count" : {
    "properties" : 
     "value1" : {
         "type" : "long"
     },
     "value2" : {
         "type" : "long"
     },
     "value3" : {
         "type" : "long"
     },
     "value4" : {
         "type" : "long"
     },
     "value5" : {
         "type" : "long"
     }
 },
 "countBy": {
     type: "keyword"
 }

我需要进行搜索，根据在 countBy 属性

中指定的计数嵌套属性的值对文档进行排序

Answer 1

您可以通过 script-based sorting 实现此目的：

"sort" : {
    "_script" : {
        "type" : "number",
        "script" : {
            "lang": "painless",
            "source": "doc['countBy'].value != null ? doc['count.'+doc['countBy'].value].value : 0"
        },
        "order" : "desc"
    }
}

弹性搜索按另一个字段中定义的字段排序

Elastic Search sort by field defined in another field

elasticsearch

elasticsearch-5