混合存储下的mapreduce启发式多表连接优化研究与实现

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1、东华大学硕士研究生学位论文混合存储下的MapReduce启发式多表连接优化研究与实现3.4实时优化策略............................................................................................303.5本章小结....................................................................................................31第四章多表连接优化策略实现..................

2、..........................................................324.1定义和符号................................................................................................324.2启发式多表连接优化策略MHMO..........................................................334.2.1连接关系图...............................

3、.......................................................344.2.2多表连接优化策略..........................................................................354.2.3混合连接优化策略实现..................................................................384.2.4MHMO与AQUA性能对比......................................

4、....................424.3代价估计模型实现....................................................................................434.3.1确定连接顺序..................................................................................444.3.2确定连接算法............................................................

5、......................454.4实时优化实现............................................................................................464.4.1实时确定连接顺序..........................................................................464.4.2实时确定连接算法........................................................

6、..................474.5本章小结....................................................................................................49第五章实验验证与分析........................................................................................515.1实验环境.................................................

7、...................................................515.2数据集........................................................................................................515.3实验结果与评价........................................................................................535.3.1验证行列混合存储PageFil

8、e....