| 摘要 |
A method for processing an inputted XPath query against an inputted XML document is provided. The method generates a summary index, an ancestor-descendant path index, and a value index from one or more inputted XML documents. The summary index and the ancestor-descendant path index and the value index have at least one path defined. XPath queries at articulation points are parsed into multiple partial queries. The cursor type index access methods are determined. Partial queries are executed against the SUM-Index to generate a list of path identifiers (PID) satisfies the partial query segments. A set of ancestor-descendant PID identifiers list is generated to provide a result sequence. The result sequence of nodes is filtered producing one or more outputted XML documents from the final result sequence of nodes. A related system and computer medium is also provided. |
