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Nuwan Wajirasena(110607D) edited section_Query_Optimization_and_Execution__.tex
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\textit{Greedy Operator Order(GOO)}
GOO maintains a set of join trees, each of which initially consists of one base relation. The algorithm then combines the pair of join trees with the lowest cost to a single join tree.This approach is capable of building join orders fast enough. Advantage of this approach is due to the evaluation of intermediate results.
[\cite{GOO}] \cite{GOO} have shown the superiority of this approach compared with others.