原 Elasticsearch结构化搜索_在案例中实战基于range filter来进行范围过滤
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课程大纲
1、为帖子数据增加浏览量的字段
POST /forum/article/_bulk { "update": { "_id": "1"} } { "doc" : {"view_cnt" : 30} } { "update": { "_id": "2"} } { "doc" : {"view_cnt" : 50} } { "update": { "_id": "3"} } { "doc" : {"view_cnt" : 100} } { "update": { "_id": "4"} } { "doc" : {"view_cnt" : 80} }
2、搜索浏览量在30~60之间的帖子
GET /forum/article/_search { "query": { "constant_score": { "filter": { "range": { "view_cnt": { "gt": 30, "lt": 60 } } } } } } gte lte
3、搜索发帖日期在最近1个月的帖子
POST /forum/article/_bulk { "index": { "_id": 5 }} { "articleID" : "DHJK-B-1395-#Ky5", "userID" : 3, "hidden": false, "postDate": "2017-03-01", "tag": ["elasticsearch"], "tag_cnt": 1, "view_cnt": 10 } GET /forum/article/_search { "query": { "constant_score": { "filter": { "range": { "postDate": { "gt": "2017-03-10||-30d" } } } } } } GET /forum/article/_search { "query": { "constant_score": { "filter": { "range": { "postDate": { "gt": "now-30d" } } } } } }
4、梳理一下学到的知识点
(1)range,sql中的between,或者是>=1,<=1
(2)range做范围过滤
更详细的内容请查看视频教程:http://www.roncoo.com/course/view/f6c7d5f0eef34b20b280621e42facbcf
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