db.collection.createIndex( { <field>: <sortOrder> }, { collation: { locale : <locale>, strength : <1|2> } } ) 大文字と小文字を区別しないインデックスの照合を指定するには、collationオブジェクトに次のフィールドを含めます。 フィールド
升级至3.4前,必须删除所有名称包含$的数据库。 删除textSearchEnabled参数。MongoDB已于2.6版本默认启用文本搜索功能。 移除mongosniff工具:自MongoDB 3.4版本起,使用功能更强大的mongoreplay替代mongosniff,支持更灵活的网络流量捕获与分析。 聚合$project阶段行为变更:若$project阶段返回空文档(未保留或新增任何字段),将触...
Case-insensitive indexes typically do not improve performance for$regexqueries. The$regeximplementation ...
Don't fall into the trap of this MongoDB Schema Design Anti-Pattern: Case-Insensitive Queries Without Case-Insensitive Indexes MongoDBSchema Oct 01, 2024 Lauren Schaefer(+1) Article Unnecessary Indexes Don't fall into the trap of this MongoDB Schema Design Anti-Pattern: Unnecessary Indexes ...
官网地址:https://docs.mongodb.com/manual/reference/operator/query/regex/#regex-case-insensitive 举个例子来说:现在有以下集合(官网的例子): { "_id" : 100, "sku" : "abc123", "description" : "Single line description." } { "_id" : 101, "sku" : "abc789", "description" : "First li...
将每种条件添加到条件列表中,我可以这样: BasicDBObject searchCond =newBasicDBObject(); searchCond.put("$and", condList); 然后查询数据: DBCursor ret = coll.find(searchCond); 还有其他的操作符如$or等等。
Yes. The following Atlas Search operators support partial string matching queries: autocomplete wildcard regex Tip See also: How to Run Partial Match Atlas Search Queries Can I perform case-insensitive search with thewildcardorregexoperator?
public List<Sample> searchAllSample(String id, PageTag page) { Query query = new Query(); query.with(new Sort(new Sort.Order(Sort.Direction.DESC, "update_date"))); int skip = (page.getCurrentPage() - 1) * page.getPageSize(); if (StringUtil.hasText(id)) { Criteria criteria = ...
If specified, includes deleted organizations in the list. This option applies only to Ops Manager organizations. You can't return deleted Atlas or Cloud Manager organizations. --limit int false 每个结果页面的项目数。 此值默认为100 。 --name 字符串 false Performs a case-insensitive search for ...
This is a case-insensitive match. End with "cme". This is a case-sensitive match. These strings match the example regular expression: "acme" "Acme" The following example uses the $regex operator to find name field strings that match the regular expression "(?i)a(?-i)cme": { name: ...