DbRelInfo 字段 |  |
DbRelInfo 类型公开以下成员。
字段| 名称 | 说明 | |
|---|---|---|
 | Block | A code block used to reposition the cursor of the child table when this relation is resolved. |
| Child | A reference to the child RDD for the relation. |
| Key | The expression used to reposition the cursor of the child table when this relation is resolved. |
| Name | name of the relation. Defaults to the parent alias = '_' + child alias. |
| Parent | A reference to the parent RDD for the relation. |
参见