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CREATE OPERATOR CLASS 中文man页面
CREATE OPERATOR CLASS 定义一个新的操作符表。 一个操作符表定义一种特定的数据类型可以如何与一种索引一起使用。 操作符表声明特定的操作符可以为这种数据类型以及这种索引方法填充特定角色或者"策略"。 操作符表还声明索引方法在为一个索引字段选定该操作 ...
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