从elasticsearch检索多值数组

本文介绍了从elasticsearch检索多值数组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我很难在索引中显示该方面.基本上，我想在单独的数组中获取特定方面的详细信息，例如公司"

我尝试了很多查询，但是都在facet数组下获取了整个facet.如何在facet数组中仅获取特定facet

请帮助我.我被困在这里

解决方案

考虑到您的数据结构有多复杂，提取此信息的简单方法可能是使用脚本字段:

  curl"localhost:9200/index/doc/_search?pretty = true" -d'{询问" : {"match_all":{}}，"script_fields":{"entity_facets":{"script":结果= []; foreach(facet:_source.Categories.Types.Facets){if(facet.entity == entity)result.add(facet);}结果"，参数":{"entity":"Country"}}，"first_facet":{"script":"_source.Categories.Types.Facets [0]"}}}'

I have trouble getting the facet in my index.Basically I want to get the details of particular facet say "Company" in a separate array

I tried many queries but it all get entire facet under facet array .How can I get only particular facet in a facet array

My index is https://gist.github.com/4015817

Please help me .I am badly stuck here

解决方案

Considering how complex your data structure is, the simples way to extract this information might be using script fields:

curl "localhost:9200/index/doc/_search?pretty=true" -d '{
    "query" : {
        "match_all" : {

        }
    },
    "script_fields": {
        "entity_facets": {
            "script": "result=[];foreach(facet : _source.Categories.Types.Facets) {if(facet.entity==entity) result.add(facet);} result",
            "params": {
                "entity": "Country"
            }

        },
        "first_facet": {
            "script": "_source.Categories.Types.Facets[0]"    
        }

    }
}'

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