In paralleldatabase systems, parallelism is utilized to improve the efficiency of query processing. However, parallelism is not equal to high efficiency. Therefore, query optimization techniques should be utilized to...
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In paralleldatabase systems, parallelism is utilized to improve the efficiency of query processing. However, parallelism is not equal to high efficiency. Therefore, query optimization techniques should be utilized to improve the efficiency of parallel query processing. In this paper, according to the characteristic of the object-orienteddatabase and its query, based on the semi-join-based parallel query processing algorithm, the information flow based query optimization techniques are proposed, and the results of performance evaluation show that they are efficient and practical.
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