Jira issue originally created by user dwalter:
This issue was originally discussed in http://www.doctrine-project.org/jira/browse/[DDC-357](http://www.doctrine-project.org/jira/browse/DDC-357)
Say there is User and UserData with oneToOne bidirectional relationship. When we fetch User objects, UserData is lazy loaded right away.
If we were to set UserData 's id as asssosiationKey of User, then user_id becomes the id of UserData and User object can already know that UserData owning side's id will equal it's own User->id.
Can this be implemented?
Comment created by @doctrinebot:
A related Github Pull-Request [GH-970] was closed: