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Method and system for reducing host variable impact on access path selection
Method and system for reducing host variable impact on access path selection
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机译:减少主机变量对访问路径选择的影响的方法和系统
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摘要
The present invention proposes enhancing the access path selection process by storing the relevant frequency distribution and the host variables values used for selecting the access path together with the corresponding access path executable. This way, the host variables impact to the access path can be inexpensively assessed and the re-optimization triggered only if necessary.
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