elasticsearch-sql

use elasticsearch like sql , and use es function in sql .

it dev on elasticsearch 1.3.2 jdk 1.7

run on elasticsearch 1.x jdk7

can run client or plugin on server

###thanks by @温少 and @elasticsearch @Medcl

SETUP

• plug

###1.3.2

./bin/plugin -u http://maven.nlpcn.org/org/nlpcn/elasticsearch-sql/1.3.2/elasticsearch-sql-1.3.2.zip --install sql 

###1.4.1

./bin/plugin -u http://maven.nlpcn.org/org/nlpcn/elasticsearch-sql/1.4.1/elasticsearch-sql-1.4.1.zip --install sql 

• visit by web site

http://localhost:9200/_plugin/sql/

• search by search

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

• explain sql to es script

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

Simple Case

==================

###you can use it by sql .

• Query

    select * from blank 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
  

###beyond sql

• Search

    select address from bank where address= matchQuery('880 Holmes Lane') order by _score desc limit 3 
  

• expand Aggregation Range

  • 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')
    

NOW

列出已经实现的功能

• ES TopHits
• ES MISS
• SQL select
• SQL COUNT distinct
• SQL where
• SQL AND & OR
• SQL Order By
• SQL Like
• SQL 通配符
• SQL In
• SQL Between
• SQL Aliases
• SQL Not Null
• SQL(ES) Date
• SQL avg()
• SQL count()
• SQL last()
• SQL max()
• SQL min()
• SQL sum()
• SQL Nulls
• SQL isnull()
• SQL Group By
• SQL now()

FEATURE

• SQL insert
• SQL update
• SQL delete
• ES functions