Elasticsearch-SQL

Elasticsearch-SQL

Elasticsearch-SQLfork fromhttps://github.com/NLPchina/elasticsearch-sql

visitinteractive webto 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