bool用來做複合查詢
複合語句可以合併，任何其他查詢語句，包括符合語句。這也就意味着，複合語句之間可以互相嵌套
must：必須所有條件，會貢獻相關性得分
must_not：必須滿足所有條件，不會貢獻相關性得分，會被當做filter過濾器
should：應該滿足should所列舉的條件。滿足條件最好，不滿足也可以，滿足得分更高
filter：相當於must，不會貢獻相關性得分
GET bank/_search { "query": { "bool": { "must": [ { "match": { "gender": "M" } }, { "match": { "address": "mill" } } ], "must_not": [ { "match": { "age": "18" } } ], "should": [ { "match": { "lastname": "Wallace" } } ], "filter": { "range": { "age": { "gte": 18, "lt": 38 } } } } } }
返回結果
{ "took" : 0, "timed_out" : false, "_shards" : { "total" : 1, "successful" : 1, "skipped" : 0, "failed" : 0 }, "hits" : { "total" : { "value" : 3, "relation" : "eq" }, "max_score" : 12.585751, "hits" : [ { "_index" : "bank", "_type" : "account", "_id" : "970", "_score" : 12.585751, "_source" : { "account_number" : 970, "balance" : 19648, "firstname" : "Forbes", "lastname" : "Wallace", "age" : 28, "gender" : "M", "address" : "990 Mill Road", "employer" : "Pheast", "email" : "[email protected]", "city" : "Lopezo", "state" : "AK" } }, { "_index" : "bank", "_type" : "account", "_id" : "136", "_score" : 6.0824604, "_source" : { "account_number" : 136, "balance" : 45801, "firstname" : "Winnie", "lastname" : "Holland", "age" : 38, "gender" : "M", "address" : "198 Mill Lane", "employer" : "Neteria", "email" : "[email protected]", "city" : "Urie", "state" : "IL" } }, { "_index" : "bank", "_type" : "account", "_id" : "345", "_score" : 6.0824604, "_source" : { "account_number" : 345, "balance" : 9812, "firstname" : "Parker", "lastname" : "Hines", "age" : 38, "gender" : "M", "address" : "715 Mill Avenue", "employer" : "Baluba", "email" : "[email protected]", "city" : "Blackgum", "state" : "KY" } } ] } }