For example, using the sample data in Figure 1, the following index idx1 would be useful for look-ups and joins based on author IDs across all documents in the XML column bookinfo of the table books.
例如，使用图1中的示例数据，可以根据author id使用下面的索引idx 1对表books的xml列bookinfo中的所有文档进行查找和连接。
For example, using the sample data in Figure 1, the following index idx1 would be useful for look-ups and joins based on author IDs across all documents in the XML column bookinfo of the table books.
例如，使用图1中的示例数据，可以根据author id使用下面的索引idx 1对表books的xml列bookinfo中的所有文档进行查找和连接。
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