| 1. | The secondary indexes are partitioned just like the primary xml index
辅助索引的分区方式类似于主xml索引。 |
| 2. | A primary xml index must first exist before you can create secondary indexes
有了主xml索引才能创建辅助索引。 |
| 3. | Type columns , a path secondary index may be able to speed up the search
类型列指定路径表达式，则path辅助索引可以提高搜索的速度。 |
| 4. | If you drop the primary xml index , any secondary indexes that are present are also deleted
如果删除主xml索引，则会删除任何现有的辅助索引。 |
| 5. | If you add a path secondary index , you may also improve the search performance in such queries
如果添加path辅助索引，则您还可以提高此类查询的搜索性能。 |
| 6. | Depending on the type of queries , these secondary indexes might help improve query performance
根据查询类型的不同，这些辅助索引可能有助于改善查询性能。 |
| 7. | For a secondary index on an index - organized table , the percentage of rows with valid guess
对于通过索引组织的表上的辅助索引，为具有valid猜测的行的百分比。 |
| 8. | Drop existing can drop a secondary index on the user table and create another secondary index on the user table
Drop _ existing可以删除用户表的辅助索引并为用户表创建其他辅助索引。 |
| 9. | In the path secondary index , the path and node values are key columns that allow efficient seeks when searching for paths
在path辅助索引中，路径值和节点值是用于提高路径搜索效率的键列。 |
| 10. | Break up the secondary indexes into pieces in order to achieve parallelism see discussion below entitled piecesize
将辅助索引拆分成数块，以实现并行性（请参阅下面题为piecesize的讨论） 。 |
