The XML index definition is equally or less restrictive than the query predicate (" containment ").
xml索引定义的限制等同于或低于查询谓词的限制(“容纳”)。
We designed a query optimizing algorithm- A Mobile Query Optimization Algorithm based on Containment and Merging, which can reduce query workload.
提出了一种基于包含与归并的移动查询优化算法，该算法可以优化查询处理，减少查询工作量。
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