GitHub user Ttdjs created a discussion: 【求助】tcc模式使用fence表情况下如何对上游重试做幂等?

以下单为例,上游重试导致注册了两个事务,应该如何实现两个事务之间的幂等?
我们现在的方案是业务上维护了一张全局的事务状态幂等表(用业务主键作为幂等),但是感觉和fence表的定位有点重叠。

GitHub link: https://github.com/apache/incubator-seata/discussions/7892

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