XML Query Optimization Model Based on Cost Operation
Shoumeng Huang · 2019
Along with the development of XML database technology, the research on XML query optimization is increasing, but it is still the weak link of XML database. In this paper, we find out the atomic operation in the traditional query estimation model, and use the method based on statistical learning to find out the operating costs and the functional relationship between these factors. Finally, experiments show that the operation model can effectively improve the query optimization effect.