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                # Wildcard Query(通配符查詢) 原文鏈接 : [https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html) 譯文鏈接 : [http://www.apache.wiki/pages/viewpage.action?pageId=4260861](http://www.apache.wiki/pages/viewpage.action?pageId=4260861) 貢獻者 : @小布丁 匹配與通配符表達式具有匹配字段的文檔(**not analyzed**)。支持的通配符是 “*”,它匹配任何字符序列(包括空字符);還有 “?”,它匹配任何單個字符。請注意,此查詢可能很慢,因為它需要迭代多個項。為了防止極慢的通配符查詢,通配符項不應以通配符 “*” 或 “?” 開頭。通配符查詢對應 **Lucene** 的 **WildcardQuery?**。 ``` GET /_search { "query": { "wildcard" : { "user" : "ki*y" } } } ``` _?boost_ 也可以與查詢相關聯: ``` GET /_search { "query": { "wildcard" : { "user" : { "value" : "ki*y", "boost" : 2.0 } } } } ``` 或者這樣: ``` GET /_search { "query": { "wildcard" : { "user" : { "wildcard" : "ki*y", "boost" : 2.0 } } } } ``` 此多項查詢允許如何控制使用 _rewrite_ 參數重寫。
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