The lowest cost path is always used unless the other path is down.
除非不可用,否则代价最小的路径总是被使用。
Dynamic Analysis - Process Comparison Analysis - Process cost Comparison a "From this report (Figure 5), you see that avoiding the high cost path saves money."
动态分析-流程对比分析-流程成本对比——在这一报告(图5)中,您可以看出避免高成本路径可以节省资金。
This means the optimizer will always attempt to formulate an access path for each query that reduces overall cost.
这意味着优化器将始终尝试为每个查询制定减少总体成本的存取路径。
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