JDPT defines events based on the runtime environments, records execution processes of the distributed program as event sequences, and defines event sequencing constraints to check the v.
JDPT基于运行环境定义事件,通过事件序列记录分布式程序的运行过程,并定义事件约束检测可行事件序列集的有效性。
Another alternative is to specify partitioning predicates by defining check constraints on nicknames.
另一种方法是通过在昵称上定义检查约束来指定分区谓词。
If the remote tables have restrictions on the data such as check constraints, you can convey these restrictions to the federated server using informational check constraints.
如果远程表在数据上有检查约束,那么可以使用信息检查约束将这些约束传递到联邦服务器。
And just to look ahead a little bit, you could easily imagine that I might want to not just put a statement in there, what the specs are, I might want to put some constraints. Some specific things to check for, to make sure that you're calling the code right.
这不仅是抽象的概念还有规范的概念,我们再往前看看,你可以简单的想象得到,我不仅仅是想在这里加一个声明,这些规范说明中我还想加一些约束,我们要注意一些特殊的事情。
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