Message in Chinese (Simplified) (中文(简体))
只能对计算列创建 UNIQUE 或 PRIMARY KEY 约束，CHECK、FOREIGN KEY 和 NOT NULL 约束要求计算列是持久化的。
Unlocalized message
Only UNIQUE or PRIMARY KEY constraints can be created on computed columns, while CHECK, FOREIGN KEY, and NOT NULL constraints require that computed columns be persisted.
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