inner-outer loop

Join operators such as HASH, MERGE SCAN and (in some situations) NESTED LOOP can also benefit from asynchrony by simultaneously executing the inner and outer legs of the join operator.

MERGE SCAN等连接操作符和(在某些情况下)NESTED LOOP也可以通过同时执行连接操作符的内分支和外分支而从异步中获益。

The outer collect loop iterates over these reservation groups, and the inner collect loop iterates over the servers contained within each restrain group.

外部的collect循环遍历这些保留组，而内部的collect循环遍历每个限制组中的服务器。

To against variety of load inertia, a zero pole placement self tuning regulator basing on inner model is designed in the outer loop.

外环则针对负载转动惯量的变化，设计了基于内模原理和零极点配置的自校正控制器。