发明名称 |
Techniques of XML query optimization over static heterogeneous XML containers |
摘要 |
A method and apparatus for optimizing XML queries over heterogeneous XML tables is provided. A query that targets a container (e.g. table or collection) that contains a plurality of XML documents is received, wherein at least two XML documents in the plurality do not conform to the same schema. Based on the received query, a plurality of execution plans is generated. Each execution plan is associated with a different XML schema. An execution plan is used to execute the query relative to those XML documents that conform to the XML schema associated with the execution plan.
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申请公布号 |
US2008016122(A1) |
申请公布日期 |
2008.01.17 |
申请号 |
US20060486794 |
申请日期 |
2006.07.13 |
申请人 |
LIU ZHEN HUA;KRISHNAPRASAD MURALIDHAR |
发明人 |
LIU ZHEN HUA;KRISHNAPRASAD MURALIDHAR |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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