This paper analyzes data retrieval of XML currently, and proposes a kind of path index technology which have been combined with inverted file to implement retrieval both on context and structure.
该文分析了当前对XML数据检索的相关工作，提出了一种路径索引技术，并将之无缝结合了基于文本的倒排索引文档，以实现XML文档的内容和结构的双重检索。
参考来源 - 一种新的基于XML的索引机制·2,447,543篇论文数据，部分数据来源于NoteExpress
除了 XML 列路径索引之外，表中不含任何全局索引，并且
The table does not have any global indexes besides XML column path indexes, and
借助全局路径索引，可以提高存储效率，并最小化XQuery执行的路径查询时间。
The global path index results in improved storage efficiency and minimizes the path look-up time for XQuery execution.
如果已分区表包含任何xml列路径索引以外的其他全局索引，重组一个分区会导致整个表脱机。
Reorganizing a partition will put the entire table offline if the partitioned table has any global indexes besides XML column path indexes.
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