Access to getForeignKeys of the adapter

[apopescu-im]

There appears to be no way to retrieve the existing (not pending) foreign keys of a table. Some adapters implement a getForeignKeys, however it is protected.

This would be useful in order to find existing an existing FK when it has not been named (or is inconsistently named), but knowing what column it would involved. For example I would like to find a pre-existing FK involving a given column and re-create it giving it a predefined name.