查询模型中其他重要的子模型与过滤和排序、计算成员、派生属性以及不对称选择有关。
Other important submodels within the query model relate to filtering and sorting, calculated members, derived attributes, and asymmetrical selections.
可以设置这些属性以惟一识别过滤器、指定查询字符串和指定解析查询字符串的查询语言。
These properties can be set to uniquely identify the filter, specify a query string, and specify the query language that parses the query string.
内容过滤是可能的,因为内容元数据存储在数据库中,可以对它进行查询以得到与用户属性相匹配的内容。
Content filtering is possible because the metadata for content is kept in the database is possible to query it for content matching the user's attributes.
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