Table 2 summarizes how the performance of this table scan query has benefited from two of our design decisions: atom site separation and compression.
表2总结了此次表扫描的性能如何能从我们的两个设计决策中受益：原子站点分离和压缩。
2
At some point in the future, the DBA may want to create a new table for separation of application data, but this is strictly a logical and semantic requirement and is not required by the database.