Multiple discrimination levels in annotation confuses ORM

[xphere]

Suppose an inheritance tree like the above:

Content
    Gallery
    Media
        Video
        Image

I want the Gallery/Media discrimination to be on a separated table, so I annotate it in Content.
Likewise, the Video/Image discrimination is annotated in Media to be in the same table.
On updating the schema, the Media table includes every field of Content.

Don't know, maybe I made some mistake and this is not a bug.
Correct me if I'm wrong, please.

More info in:
http://stackoverflow.com/questions/3932505/multiple-discrimination-levels-while-using-doctrine2

[romanb]

That is because this is not supported.

[xphere]

Thank you for your answer.
Is this an edge case so unusual as to not support it?
Or it will complicate the base code too much?
Is there a workaround?

[beberlei]

Please move this feature request to www.doctrine-project.org/jira this issue tracker here will be disabled (we dont use it)