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Fast, Randomized Join-Order Selection - Why Use Transformations?

Journal of Mathematical Imaging and Vision, pp.85-95, (1994)

Cited by: 84|Views22
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Abstract

We study the effectiveness of probabilistic se- lection of join-query evaluation plans, t&h- out reliance on tree transformation rules. In- stead, each candidate plan is chosen uniformly at random from the space of valid evaluation orders. This leads to a transformation-free strategy where a sequence of random plans is generated and the p...More

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