this paper studies the keyword search for xml in relational databases, presents two inverted list indexes: extended inverted index based on containment relationship and inverted index based on schema.
研究了关系数据库中xml文档的关键字检索技术,提出了两种新的倒排索引技术:扩展的基于包含关系的倒排索引和基于模式的倒排索引。