/_search:所有索引,所有type下的所有數據都搜索出來
GET /_search { "query": { "bool": { "filter": { "term": { "tradingDay": "20200520" } } } } }
/index1/_search:指定一個index,搜索其下所有type的數據
GET /stk_his_2020/_search { "query": { "bool": { "filter": { "term": { "tradingDay": "20200520" } } } },"_source": false }
_source 關鍵字類似與mysql中的select fileds,只查詢需要的字段,此處使用 "_source": false 避免了搜索無用信息,大大的加快了搜索速度。
/index1,index2/_search:同時搜索兩個index下的數據
GET /stk_his_2019,stk_his_2020/_search { "query": { "bool": { "must": [ { "range": { "tradingDay": { "gte": "20190125", "lte": "20200525" } } } ], "filter": { "term": { "stkId": "601162.SH" } } } }, "_source": false, "aggs": { "total": { "stats": { "field": "hqVo.qTDailyFlow.sellValueBig" } } } }
此處的使用場景為:計算區間內的流出額,但是我們在存儲數據時,2019年和2020年處在不同的標簽,那么我們使用多標簽搜索+range定位時間+aggs.stats即可算出區間內的數據。
/*1,*2/_search:按照通配符去匹配多個索引
GET /stk_his_*/_search { "query": { "bool": { "must": [ { "range": { "tradingDay": { "gte": "20190617", "lte": "20200617" } } } ], "filter": { "term": { "stkId": "000001.SZ" } } } } }
這里用*代表了全部年份,應用場景和上面那個問題是一樣的,但是index更多,會慢一些。
/index1/type1/_search:搜索一個index下指定的type的數據
GET /stk_his_2019/hits/_search { "query": { "bool": { "must": [ { "range": { "tradingDay": { "gte": "20190617", "lte": "20200617" } } } ], "filter": { "term": { "stkId": "000001.SZ" } } } },"_source": false }
/index1/type1,type2/_search:可以搜索一個index下多個type的數據
GET /stk_his_2019/hits,_shards/_search { "query": { "bool": { "must": [ { "range": { "tradingDay": { "gte": "20190617", "lte": "20200617" } } } ], "filter": { "term": { "stkId": "000001.SZ" } } } } }
/index1,index2/type1,type2/_search:搜索多個index下的多個type的數據
GET /stk_his_2019,stk_his_2020/hits,_shards/_search { "query": { "bool": { "must": [ { "range": { "tradingDay": { "gte": "20190617", "lte": "20200617" } } } ], "filter": { "term": { "stkId": "000001.SZ" } } } } }
/_all/type1,type2/_search:_all,可以代表搜索所有index下的指定type的數據
GET /_all/hits,_shards/_search { "query": { "bool": { "must": [ { "range": { "tradingDay": { "gte": "20190617", "lte": "20200617" } } } ], "filter": { "term": { "stkId": "000001.SZ" } } } } }