在ElasticSearch中按数字字段上的距离排序

本文介绍了在ElasticSearch中按数字字段上的距离排序的处理方法，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

对于一个项目，我需要选择在过滤器范围内并且最接近数值的文档。

For a project I need to select documents which are within filter bounds and a closest to a numeric value. This is about a price and I cannot seem to find if this is possible.

说我有2个文档：

{ "name": "Document1", "price": 46.12, "tags": ["tag1", "tag2"] } { "name": "Document2", "price": 82.29, "tags": ["tag1", "tag3"] }

是否可以获取价格最接近66.23的文档？

Is it possible to get the document with the price closest to 66.23?

推荐答案

答案（感谢keety）是启用动态脚本并添加如下排序方法：

The answer (thanks to keety) was to enable dynamic scripting and add a sorting method like this:

{ "query": { "filtered" : { "query":{ "match_all" : { } }, "filter": {} } }, "sort" : { "_script" : { "script" : "cur = (factor - doc['age'].value); if (cur < 0) { cur = cur * -1 } else { cur = cur}", "type" : "number", "params" : { "factor" : 45 }, "order" : "asc" } } }

从最近到最远排序，就像一种魅力。谢谢！

This sorts from closest to farthest and works like a charm. Thanks!