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20240108_04.md
当业务使用了分库特性时, 如果业务有全局唯一的需求, 需要能保证全局唯一的序列生成器, 传统方法为 UUID. 也可以使用多个字段来实现, 例如一个nodeid字段, 一个dbid字段, 一个schemaid字段, 一个partitionid字段, 一个sequence字段. nodeid代表实例 ID(实例之间唯一), dbid代表 ...
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