This will result in more accurate costing, and more optimal access plan.
这将导致更精确的成本计算和更优的访问计划。
Ensure those SQLs have optimal access plans and the best indexes in place.
确保那些SQLs拥有优化的访问计划和最佳索引。
This brings little overhead for compiling, but gives an optimal access plan.
这会增加一些编译负载,但却能够产生一个最优的存取计划。
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