[Zope] How to use an existing Gadfly DB from Zope

[Larry Luther]

I'm a newbie but I have discovered that the Gadfly implementation
is not the same in Zope as the stand alone version.  One of
the things they don't have in Zope is the __table_names__ table,
they use a folder instead.  I was not able to add a Gadfly
extension to PSQLinput for this very reason.

    Larry