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- W1985452283 abstract "We propose a new partition-based join algorithm, called select-partitioned join, which performs better than the sort-merge and hash-partitioned join. The proposed select-partitioned join algorithm consists of three major steps. The first step is to determine a partitioning pattern by which the total join cost can be minimized and choose the bound values of the buckets by using a selection algorithm. The second is to partition both relations into ranged buckets according to the partitioning pattern and the bound values chosen in the previous step. And the last step is to apply the nested-block join on the partitioned bucket pairs. The selection algorithm is based on the cumulative distribution function and it is performed by a single scan of the smaller relation. The performance of the select-partitioned join is analyzed in terms of the number of I/Os and compared with the sort-merge and hash-partitioned join algorithms. Our join algorithm is better than a hash-partitioned join algorithm, which is, in general, known to be better for the join operation. Simulation experiments are conducted for the join algorithms." @default.
- W1985452283 created "2016-06-24" @default.
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- W1985452283 date "1991-01-01" @default.
- W1985452283 modified "2023-10-18" @default.
- W1985452283 title "Select-partitioned join: An improved partition-based join algorithm" @default.
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- W1985452283 doi "https://doi.org/10.1016/0306-4379(91)90015-2" @default.
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