作为转换的一部分，优化器还决定正确的表联接顺序，重写表达式，并从SQL中消除任何冗余。

As part of the transformation, the optimizer also determines the correct table join order, rewrites expressions, and eliminates any redundancy from the SQL.

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典型的编译器最优化，如死代码消除、常数合并、常数传送、部分冗余的消除、循环展开等等，是静态分析。

The cla ic compiler optimizatio, such as dead co de elimination, co tant folding, co tant propagation, elimination of partial redundancies, loop unrolling, etc. , are static analyses.

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典型的编译器最优化，如死代码消除、常数合并、常数传送、部分冗余的消除、循环展开等等，是静态分析。

The cla ic compiler optimizatio, such as dead co de elimination, co tant folding, co tant propagation, elimination of partial redundancies, loop unrolling, etc. , are static analyses.

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