Purging data from hang-off tables
In order to purge the hang-off entities you need to include the entities.jar file in the classpath of the agent server.
Currently, the Purge agent moves records to history tables. With the hang-off entities enabled, the Purge agent also deletes records from hang-off tables. However, the data from a hang-off table can be purged only if its parent elements are also purged. If a history table exists, records are added to the history table. The records are deleted from the history table using the History Purge agent.