2001•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access
A Research on Optimization of Multi-join Queries
Peng Jian
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Abstract
On the basis of the given condition,it is shown that the global optimization algorithm can apply to equi_join or nonequi_join and has nothing to do with the estimation model of the join_later size in muti_join queries,and that for star queries, the algorithm can produce join sequences with the following global optimization property.In the join sequence, arbitrary subsequence formed by three neighboring joins is optimum.