Also, column names can be inherited more easily from set operators such as UNION.
另外，可以更轻松地从集合操作符(比如union)继承列名称。
This property can be set to True when you have to make a union anonymous.
当您制定一个匿名的的联合体时，这个属性可以被设定为True。
This property can be set to True when you have to make a union anonymous.
当您制定一个匿名的的联合体时，这个属性可以被设定为True。
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