A multiple copy design utilizes multiple copies of a database where the workload is distributed across the copies.
多重副本设计利用数据库的多个副本,工作负载分布在这些副本上。
A design with multiple columns (3 + columns) is not necessarily a complex design.
多栏(3栏以上)不一定就是复杂的设计。
So while I wouldn't say that we have implemented anything that didn't end up getting used in some form, there are plenty of features that went through multiple design revisions.
因此,虽然我不敢说实现的东西都最终会在某种程度上得到使用,但是许多功能的确经过了多次设计修订。
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