A trusted context is an object that gives users a specific set of privileges and is available when the user connects to the database through a trusted connection.
受信任上下文是一个对象，它为用户提供一组特定的特权，当用户通过一个受信任的连接连接到数据库时，便可以使用它。
Just like tables, nicknames have an equivalent set of privileges that can control user access to the nickname objects on the federated system.
与表一样，昵称也有对等的一组权限，用于控制用户在联邦系统上对昵称对象的访问。
Such programs are generally suid (set uid) root, meaning that the system extends special privileges to the application upon request, even if a regular old user runs the program.
这样的程序通常是suid(设定uid) root，也就是即使一般的老使用者执行这个程序时系统也会按请求将特殊权限扩充给应用程序。
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