ElasticHD-master.zip

ElasticSQL ----------- [](https://travis-ci.org/farmerx/elasticsql) [](https://godoc.org/github.com/farmerx/elasticsql) [](https://coveralls.io/github/farmerx/elasticsql?branch=master) [](https://goreportcard.com/report/github.com/farmerx/elasticsql) [](https://github.com/farmerx/elasticsql/blob/master/LICENSE) > ElasticSQL package converts SQL to ElasticSearch DSL ## SQL Features Support: - [x] SQL Select - [x] SQL Where - [x] SQL Order BySQL - [x] SQL Group By - [x] SQL AND & OR - [x] SQL Like & NOT Like - [x] SQL COUNT distinct - [x] SQL In & Not In - [x] SQL Between - [x] SQL avg()、count(*), count(field), min(field), max(field) ## Beyond SQL Features Support： - [x] ES TopHits - [x] ES date_histogram - [x] ES STATS - [x] ES RANGE - [x] ES DATE_RANGE *Improvement : now the query DSL is much more flat* ## SQL Usage Query ``` select * from test where a=1 and b="c" and create_time between '2015-01-01T00:00:00+0800' and '2016-01-01T00:00:00+0800' and process_id > 1 order by id desc limit 100,10 ``` Aggregation ``` select avg(age),min(age),max(age),count(student),count(distinct student) from test group by grade,class limit 10 ``` Beyond SQL * 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 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") ``` * range date group by day ``` select * from test group by date_histogram(field="changeTime",interval="1h",format="yyyy-MM-dd HH:mm:ss") ``` * stats ``` SELECT online FROM online group by stats(field="grade") ``` * topHits ``` select top_hits(field="class", hitssort="age:desc", taglimit = "10", hitslimit = "1", _source="name,age,class,gender") from school ``` ## PKG Usage ------------- > go get github.com/farmerx/elasticsql Demo : ```go package main import ( "fmt"    "github.com/farmerx/elasticsql" ) var sql = ` select * from test where a=1 and b="c" and create_time between '2015-01-01T00:00:00+0800' and '2016-01-01T00:00:00+0800' and process_id > 1 order by id desc limit 100,10 ` var sql2= ` select avg(age),min(age),max(age),count(student) from test group by class limit 10 ` var sql3= ` select * from test group by class,student limit 10 ` var sql4 = ` select * from test group by date_histogram(field="changeTime",interval="1h",format="yyyy-MM-dd HH:mm:ss") ` func main() { esql := elasticsql.NewElasticSQL(eslasticsql.InitOptions{}) table, dsl, err := esql.SQLConvert(sql) fmt.Println(table, dsl, err) } ``` ## Licenses This program is under the terms of the MIT License. See [LICENSE](https://github.com/farmerx/elasticsql/blob/master/LICENSE) for the full license text.