global partition schema 全局分块模式
The schema and partition provide logical separation of data for databases and namespace provide logical separation of data for XML.
这种模式和分区能够实现数据的逻辑分离，而名称空间则能够实现 XML 数据的逻辑分离。
Similar partition-based persistence solutions often require that a special column be added to the database schema to identify the partition identifier.
而基于分区的类似的持久性解决方案通常都需要向数据库模式添加一个特殊的列来识别分区标识。
Slice does not require such additional schema-level information because it maintains the association between a persistence instance and its original database partition via its logical name.
Slice 不 需要这类额外的模式层的信息，因为它根据持久性实例的逻辑名维护了实例和其原始数据库分区间的关联。
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