Elasticsearch-SQL_elasticsearch sql 时间函数-优快云博客

本文链接：https://blog.youkuaiyun.com/manimanihome/article/details/53231140

本文介绍如何使用 Elasticsearch-SQL 进行数据查询、聚合分析及删除操作，并提供了多种查询示例，如条件筛选、范围分组、地理位置查询等。

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Elasticsearch-SQL

安装
https://github.com/NLPchina/elasticsearch-sql

一、基本用法
Visit The elasticsearch-sql web front end:
http://localhost:9200/_plugin/sql/

Simple query
http://localhost:9200/_sql?sql=select * from indexName limit 10

Explain SQL to elasticsearch query DSL
http://localhost:9200/_sql/_explain?sql=select * from indexName limit 10


二、sql的用法
--Query
SELECT * FROM bank WHERE age >30 AND gender = 'm'

--Aggregation
select COUNT(*),SUM(age),MIN(age) as m, MAX(age),AVG(age)
FROM bank GROUP BY gender ORDER BY SUM(age), m DESC

--Delete
DELETE FROM bank WHERE age >30 AND gender = 'm'


三、sql以外的用法

--Search
SELECT address FROM bank WHERE address = matchQuery('880 Holmes Lane') ORDER BY _score DESC LIMIT 3

--Aggregations
--range age group 20-25,25-30,30-35,35-40
SELECT COUNT(age) FROM bank GROUP BY range(age, 20,25,30,35,40)

--range date group by day
SELECT online FROM online GROUP BY date_histogram(field='insert_time','interval'='1d')

--range date group by your config
SELECT online FROM online GROUP BY date_range(field='insert_time','format'='yyyy-MM-dd' ,'2014-08-18','2014-08-17','now-8d','now-7d','now-6d','now')

--ES Geographic
SELECT * FROM locations WHERE GEO_BOUNDING_BOX(fieldname,100.0,1.0,101,0.0)

--Select type
SELECT * FROM indexName/type