As shown in the IXSCAN descriptor in Figure 8, the leading column of the index exploited by optimizer is PRODUCT_NUMBER, which does not provide the order required for merge scan join.
如图8的IXSCAN描述符所示，通过优化器利用的索引的领先列是PRODUCT _ NUMBER，其不为合并扫描联接提供所需的顺序。
Each index can be specified using the @index annotation in an Entity class or by using the HashIndex plug-in configuration in an ObjectGrid descriptor XML file.
可以使用 Entity 类中的 @index注释或ObjectGrid描述符XML文件中的 HashIndex插件配置指定每个索引。
Searches for the index of the item that has the given property descriptor.
搜索具有指定属性描述符的项索引。
The key problem is to create a classification number descriptor parallel index database during the design of a vocabulary switching system.
本文针对手工建立分类表叙词表转换系统的缺点，用计算机设计了一个分类表叙词表转换系统。
The key problem is to create a classification number descriptor parallel index database during the design of a vocabulary switching system.
本文针对手工建立分类表叙词表转换系统的缺点，用计算机设计了一个分类表叙词表转换系统。
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