At each operator in the access plan, the optimizer estimates the cardinality output from the operator.
对于访问计划的每个操作符，优化器将估计该操作符的基数输出。
2
The remaining two sections provide details on each operator of the access plan, and the tables and/or indexes used by the query.
其余的两个区域提供了关于访问计划的每个操作符以及查询所使用的表和/或索引的细节。
3
Although they are only allowed to take minority stakes in Chinese telecoms companies, having a local partner could give a foreign operator better access to other telecoms projects in China.