**/BookParentChild*.v2.csv{,.gz} (as specified by book-parent-child.v2.file-pattern). A sample file is BookParentChild.v2. This file is loaded using the BookParentChild topic. See the Topic Aliases table for an understanding of the topic aliases associated with each topic.
| Field | Key | Null | FieldType | Description | Example |
| Name | Y | N | String | Name of the node in the Book/Desk hierarchy. | |
| Parent | N | Y | String | Name of the parent node (or null if there is no parent). | |
| AsOfDate | Y | N | Date ‘YYYY-MM-DD’ | Timestamp (at close of business) for the data. |