Join materializations（连接物化视图（Join materializations））¶
Performs a left, inner or right join of two materialized object data sets. Select which columns of data you wish to retain from the source and joining materializations. Optionally, add a prefix to incoming columns to avoid name collisions with existing columns, or to annotate the joined columns.
This is useful if you are trying to perform a visualization or calculation using properties across linked objects in the ontology. The native object set card switch to linked object set will only perform a link traversal, resulting in the linked objects, but will not retain the original object information in the same row.
Alternatively, at smaller scales (less than 50,000 objects), a join to linked objects card can be used in the transform table.
Input type¶
Object Set, Materialization
Output type¶
Materialization
Usage information¶
| Functionality | Availability |
|---|---|
| Standard Quiver card | Supported |
| Transform table transform | Unsupported |
See also¶
中文翻译¶
连接物化视图（Join materializations）¶
对两个已物化的对象数据集执行左连接、内连接或右连接操作。选择希望从源数据表和连接物化视图中保留的数据列。可选择为传入列添加前缀，以避免与现有列名冲突，或对连接后的列进行注释标注。
当您需要利用本体中关联对象的属性进行可视化或计算时，此功能非常实用。原生对象集卡片切换至关联对象集仅执行链接遍历操作，返回关联对象，但不会在同一行中保留原始对象信息。
此外，在较小规模（少于50,000个对象）的场景下，可在转换表中使用关联对象连接卡片。
输入类型¶
对象集（Object Set），物化视图（Materialization）
输出类型¶
物化视图（Materialization）
使用信息¶
| 功能 | 可用性 |
|---|---|
| 标准 Quiver 卡片 | 支持 |
| 转换表转换 | 不支持 |