Elasticsearch-SQL

Elasticsearch-SQL fork from https://github.com/NLPchina/elasticsearch-sql

visit interactive web to feel.

features

All features following require ES with groovy script enabled.

• Distinct precision_threshold depends on ES or you can specify by second parameters.
  When you have lot of shards, 40000 consume too much memory.
• select,groupBy now support functions and field alias
• nested function is also available,eg. split(substring('newtype',0,3),'c')[0]
• Binary operation support now, eg. floor(substring(newtype,0,14)/100)/5)*5

functions support

• floor
• split
• trim
• log
• log10
• substring
• round
• sqrt
• concat_ws
• /
• %

Example

check Example file:

org.nlpcn.es4sql.Test

SQLs:

SELECT newtype as nt  from  twitter2 

SELECT sum(num) as num2,newtype as nt  
from  twitter2 
group by nt  order by num2 

SELECT sum(num_d) as num2,split(newtype,',') as nt  
from  twitter2 
group by nt  
order by num2

SELECT sum(num_d) as num2,floor(num) as nt  
from  twitter2 
group by floor(num),newtype  
order by num2

SELECT split('newtype','b')[1] as nt,sum(num_d) as num2   
from  twitter2 
group by nt

SELECT split(substring('newtype',0,3),'c')[0] as nt,num_d   
from  twitter2 
group by nt

SELECT trim(newtype) as nt 
from  twitter2


SELECT floor(floor(substring(time,0,14)/100)/5)*5 as nt,
count(distinct(mid)) as cvalue 
FROM twitter2  
where ty='buffer' and day='20160815' and domain='baidu.com' 
group by nt 
order by cvalue